Multifunctional welding device for furniture manufacturing

Abstract

The invention relates to the field of welding tools, and discloses a multifunctional welding device for furniture manufacturing, which comprises a welding spraying mechanism located on a transfer frame and used for welding a furniture blank and synchronously starting spraying of anti-rust protective paint after welding is completed; the synchronous linkage mechanism is located on the inner side clamping and fixing mechanism and matched with the T-shaped fixing barrel, the clamping rail structure of the T-shaped fixing barrel, the outer tooth rotating disc and the two-way fluted disc to drive the inner side clamping and fixing structure and the outer side clamping and fixing structure to operate synchronously. The limiting guide mechanism is located on the mounting base. And the inner side clamping mechanism and the outer side clamping mechanism are designed, so that stable clamping of the blank is ensured. And the inner side clamping mechanism and the outer side clamping mechanism are linked through the synchronous linkage mechanism, so that the clamping stability is ensured, and the clamping mode can be flexibly adjusted according to the welding requirement. And particularly, during rotary adjustment, the inner side clamping mechanism is kept static, so that interference to the blank is avoided, and the welding process is more accurate and stable.

Description

Technical Field

[0001] The present invention relates to the technical field of welding tooling, and particularly to a multifunctional welding device for furniture manufacturing. Background Art

[0002] Furniture plays an extremely important role in people's daily lives. It not only provides basic physiological needs support for people, such as rest and work, but also greatly affects the aesthetics and practicality of the living space. Furniture accessories are an integral part of the overall furniture. They not only increase the functionality of the furniture, but also enhance the aesthetics and user experience of the furniture.

[0003] Traditional welding processes usually require a large amount of manual intervention, such as manual clamping, adjusting the welding position, and changing the working position multiple times. This process is not only time-consuming and laborious, but also prone to low production efficiency in high-frequency production. The welding process has poor adaptability to workpieces of different sizes and shapes. Especially in the welding of tubular workpieces and rectangular workpieces, it may be necessary to continuously change fixtures or adjust welding process parameters, increasing the complexity of the production process. Multiple actions in the welding system, such as clamping, welding, and spraying, are usually manually coordinated by different components or workers respectively, resulting in low precision and poor synchronization during operation. After the process is completed, the welded parts are easily exposed to the air. Especially for metal materials, they are prone to rust. To prevent rust, the traditional method is usually manual spraying or subsequent anti-rust treatment. This is not only time-consuming and laborious, but also may result in uneven coatings due to improper manual operation, unable to effectively protect the welding points. And traditional welding processes often require a large operating space to accommodate fixtures, tools, and transportation equipment. In some traditional production environments, the space utilization is insufficient, resulting in inefficient use of the factory building area and relatively high overall equipment costs. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a multifunctional welding device for furniture manufacturing, which solves the problems of the traditional welding process relying on a large amount of manual intervention, poor adaptability, low efficiency, inaccurate operation, easy to cause uneven post-weld anti-rust treatment, and at the same time occupying a large amount of space, increasing production complexity and cost.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: A multifunctional welding device for furniture manufacturing, comprising:

[0006] An installation base, which is used to fix the furniture manufacturing welding equipment structure in cooperation with the limit wheel frame structures on both sides;

[0007] A side-mounted suspension is located on the installation base and is used to mount and heighten the inner clamping structure for welding;

[0008] The side ring is located on the mounting base and is used to form a side frame of the welding equipment;

[0009] The side ring 2 is located on the mounting base and is on the same axis as the side ring 1, and is used to form a side frame of the welding equipment and fix the outer clamping structure of the welding;

[0010] The adapter frame is located on the side ring one and the side ring two, and is used to connect the outputs of the side ring one and the side ring two, and to install the welding and anti-rust protection liquid spraying structure;

[0011] The inner clamping mechanism is located on the side suspension and is coaxial with the side ring 1 and the side ring 2, and is used to clamp the furniture blank to be welded from the inside;

[0012] The outer clamping mechanism is located on the side ring 2 and is used to clamp the furniture blank to be welded from the outside in cooperation with the linear clamping rail;

[0013] The welding spraying mechanism is located on the adapter frame and is used for welding furniture blanks and simultaneously starting the spraying of anti-rust protective paint after welding is completed;

[0014] The synchronous linkage mechanism is located on the inner clamping mechanism, and cooperates with the T-shaped fixing cylinder, the rail structure of the T-shaped fixing cylinder, the outer gear rotating disk and the bidirectional gear disk to drive the inner clamping structure and the inner clamping structure to operate synchronously;

[0015] The limit guide mechanism is located on the mounting base, and cooperates with the multi-station fixing frame and the guide pulley to synchronously drive the synchronous linkage mechanism to disengage when the equipment is reversed;

[0016] The output motor 1 and the output motor 2 are located on the mounting base, and cooperate with the gear structure at the output end to generate torque for driving the device to rotate.

[0017] Preferably, the top of the mounting base is provided with a limiting wheel frame structure distributed on both sides, the side suspension is fixedly connected to one side of the mounting base, the side ring one and the side ring two are movably connected to the two sides of the top of the mounting base through the limiting wheel frame structure of the mounting base, the outer surface of the side ring one is provided with a tooth key structure, the side ring two is arranged in an area close to the side suspension, the adapter frame is fixed between the side ring one and the outer ring of the side ring two, the inner clamping mechanism is arranged on the bracket structure at the top of the side suspension, and passes through the side ring two to extend between the side ring one and the side ring two, the outer clamping mechanism is arranged in the axial area of ​​the side ring two, the welding spraying mechanism is arranged on the adapter frame, the synchronous linkage mechanism is sleeved on the inner clamping mechanism, the limiting guide mechanism is fixed on the side of the side ring two away from the side ring one, the output motor one is arranged on the mounting base, and is meshed with the tooth key structure of the side ring one through the gear structure installed at the output end, and the output motor two is arranged on the inner side of the side ring two.

[0018] Preferably, the inner clamping mechanism comprises a T-shaped fixing cylinder and an outer gear rotating disk, the T-shaped fixing cylinder consists of a cylindrical and a disc-shaped structure, the cylindrical structure of the T-shaped fixing cylinder is fixedly connected to the top of the side suspension, the outer gear rotating disk is sleeved and rotatable on the cylindrical structure of the T-shaped fixing cylinder, the rail structure of the T-shaped fixing cylinder is arranged on the outer surface of the cylindrical structure, the side of the T-shaped fixing cylinder away from the outer gear rotating disk is provided with a circumferentially distributed linear rail, the outer gear rotating disk is provided with a circumferentially distributed arc-shaped limiting groove, the side of the T-shaped fixing cylinder away from the outer gear rotating disk is slidably connected with a circumferentially distributed built-in sliding rod through the linear rail, the sliding end of the built-in sliding rod is provided with a sliding column structure, and passes through the linear rail to extend into the arc-shaped limiting groove, and the inner end of the built-in sliding rod is provided with a multi-station clamping conveyor belt, and the multi-station clamping conveyor belt extends between the side ring one and the side ring two.

[0019] Preferably, the outer clamping mechanism includes a positioning disk and a two-way gear disk, the two-way gear disk is fixedly connected to one side of the positioning disk, the positioning disk is rotated on the inner wall of the side ring 2 by engaging with the slot formed between the two-way gear disk, the two-way gear disk is arranged on the periphery of the outer gear rotating disk, the outer ring and the inner ring of the two-way gear disk are both provided with a tooth key structure, the outer ring tooth key structure of the two-way gear disk is meshed with a gear structure installed on the output end of the output motor 2, the side of the positioning disk away from the two-way gear disk is fixedly connected with a suspension ring in an overhead form, a circumferentially distributed limiting sleeve is rotatably connected between the suspension ring and the positioning disk, a clamping arm is slidably connected inside the limiting sleeve, and the outer end of the limiting sleeve is rotatably connected to the side ring 2 in a circumferentially distributed form.

[0020] Preferably, the welding spray attachment mechanism includes a linkage ring frame, a screw conveying group and a linkage sprinkler assembly, the linkage ring frame is clamped and slidably connected to the adapter frame, a hydraulic pushing member is provided on one side of the screw conveying group, the telescopic end of the hydraulic pushing member faces the inside of the adapter frame, a welding end is provided at the output end of the hydraulic pushing member, the inner ring surface of the linkage ring frame is provided with circumferentially distributed arc rails, and the output end of the hydraulic pushing member is rotatably connected to a traction rod 1.

[0021] Preferably, the synchronous linkage mechanism includes a multi-station fixed frame and a guide pulley, a circumferential track groove is arranged on the inner side of the multi-station fixed frame, the multi-station fixed frame is slidably connected to the outer surface of the T-shaped fixed cylinder, and the rail structure of the T-shaped fixed cylinder is engaged in the track groove of the multi-station fixed frame, the multi-station fixed frame is rotatably connected with circumferentially distributed embedded gears, the embedded gears are arranged in the area between the external gear turntable and the bidirectional gear disk, and the guide pulleys are circumferentially distributed on the outer surface of the multi-station fixed frame.

[0022] Preferably, the limiting guide mechanism includes a wrapping tube fixedly connected to the inner side of the side ring 2 and surrounding the synchronous linkage mechanism, the inner side wall of the wrapping tube is provided with a step groove, the step groove is composed of a plurality of circumferentially distributed and V-shaped grooves, adjacent grooves are interconnected, and the guide pulley is embedded and slid in the step groove.

[0023] Preferably, the inner side of the clamping arm is rotatably connected to a clamping conveying roller which is arranged obliquely.

[0024] Preferably, the screw conveying group is arranged on an adapter frame, and the nut sub-end of the screw conveying group is fixedly connected to a linkage ring frame.

[0025] Preferably, the linkage sprinkler assembly comprises a linkage traction ring, two traction rods and an extension rod, the linkage traction ring being movably connected to the inner ring side wall of the linkage ring frame through a circumferentially distributed arc-shaped rail, the end of the traction rod one away from the hydraulic pushing member is rotatably connected to the linkage traction ring, the side wall of the linkage traction ring is rotatably connected with the circumferentially distributed traction rods two, the number of the extension rods corresponds to the number of the traction rods two, and is movably connected to the inner side wall of the linkage ring frame in a circumferentially distributed manner, the end of the traction rod two away from the linkage traction ring is rotatably connected to the corresponding extension rod, and the end of the extension rod away from the linkage ring frame is provided with a sprinkler end.

[0026] The present invention provides a multifunctional welding device for furniture manufacturing, which has the following beneficial effects:

[0027] 1. The present invention has a flexible clamping system: the device is designed with an inner clamping mechanism and an outer clamping mechanism to ensure stable clamping of the blank. The inner clamping mechanism and the outer clamping mechanism are linked by a synchronous linkage mechanism, which not only ensures the stability of the clamping, but also can flexibly adjust the clamping method according to the welding needs. In particular, during the rotation adjustment, the inner clamping mechanism remains stationary, thereby avoiding interference with the blank, making the welding process more accurate and stable.

[0028] 2. The present invention has a rotation adjustment and synchronous linkage system: One of the core advantages of the equipment is its rotation adjustment function. Through the linkage of the adapter frame, side ring one and side ring two, the clamping mechanism can automatically adjust the clamping area to meet the welding requirements of blanks of different sizes and shapes. At the same time, the combination of the limit guide mechanism and the synchronous linkage mechanism enables the internal and external clamping mechanisms to coordinate with each other during the rotation process, avoiding interference and ensuring a stable welding effect. The limit guide mechanism ensures the precise displacement of the multi-station fixed frame through the design of the wrapping tube and the step groove. Under the guidance of the step groove, the guide pulley can smoothly perform linear reciprocating displacement, thereby avoiding errors in movement. This precise guiding structure ensures that the equipment can still maintain a stable working state under high load and high-speed operation.

[0029] 3. Integrated Design and Space Saving of the Present Invention: The overall structure of the equipment is designed in a compact manner, with multiple functions such as welding, clamping, and spraying highly integrated, avoiding the cumbersome nature and space waste of multiple dispersed systems in traditional equipment. By organically combining the functions of each system, the equipment not only improves the overall working efficiency but also saves space at the production site and reduces the floor area of the equipment.

[0030] 4. The Present Invention Has an Adjustable Welding and Spraying Attachment Mechanism: The welding and spraying attachment mechanism can not only be adjusted in a linear direction but also rotated in a circumferential direction as needed to ensure comprehensive coverage during the welding process. This flexibility enables the equipment to adapt to welding requirements of various shapes and positions. The combination of the hydraulic pusher and the linkage spraying component allows the spraying of the rust prevention protective paint to be carried out immediately after welding, preventing the welding points from being exposed to the air and oxidized to the greatest extent and providing long-lasting rust prevention protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a three-dimensional schematic view of the main structure of the present invention Figure One ;

[0032] Figure 2 is a three-dimensional schematic view of the main structure of the present invention Figure Two ;

[0033] Figure 3 is a three-dimensional schematic view of the main structure of the present invention Figure Three ;

[0034] Figure 4 is a combined schematic view of the installation base structure of the present invention;

[0035] Figure 5 is a schematic view of the installation state of the inner clamping mechanism of the present invention;

[0036] Figure 6 is a schematic view of the installation state of the outer clamping mechanism of the present invention;

[0037] Figure 7 is a schematic view of the installation state of the synchronous linkage mechanism of the present invention;

[0038] Figure 8 is a schematic view of the installation state of the limit guiding mechanism of the present invention;

[0039] Figure 9 is a schematic view of the structural composition of the inner clamping mechanism of the present invention Figure One ;

[0040] Figure 10 is a schematic view of the structural composition of the inner clamping mechanism of the present invention Figure Two ;

[0041] Figure 11Schematic diagram of the structural composition of the outer clamping mechanism of the present invention;

[0042] Figure 12 Schematic diagram of the structural composition of the clamping mechanism of the present invention;

[0043] Figure 13 Schematic diagram of the structure of the welding spraying mechanism of the present invention;

[0044] Figure 14 For the present invention Figure 13 Enlarged schematic diagram at position A in;

[0045] Figure 15 Schematic diagram of the structural combination of the synchronous linkage mechanism of the present invention;

[0046] Figure 16 Schematic diagram of the structure of the limit guiding mechanism of the present invention.

[0047] Among them, 1. Installation base; 2. Side-mounted suspension; 3. Side-mounted ring one; 4. Side-mounted ring two; 5. Adapter frame; 6. Inner clamping mechanism; 7. Outer clamping mechanism; 8. Welding spraying mechanism; 9. Synchronous linkage mechanism; 10. Limit guiding mechanism; 11. Output motor one; 12. Output motor two; 61. T-shaped fixing cylinder; 62. External gear turntable; 63. Linear clamping rail; 64. Arc-shaped limit groove; 65. Built-in sliding rod; 66. Multi-station clamping conveyor belt; 71. Positioning disk; 72. Bidirectional gear disk; 73. Suspension ring; 74. Limit sleeve; 75. Clamping arm; 76. Clamping conveyor roller; 81. Linkage ring frame; 82. Screw conveying group; 83. Hydraulic pushing member; 84. Arc-shaped clamping rail; 85. Linkage traction ring; 86. Traction rod one; 87. Traction rod two; 88. Extension rod; 91. Multi-station fixing frame; 92. Embedded gear; 93. Guide pulley; 101. Wrapping cylinder; 102. Step groove. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] Please refer to the attached Figure 1 - attached Figure 3, an embodiment of the present invention provides a multifunctional welding device for furniture manufacturing, including: a mounting base 1, which is used for fixing the furniture manufacturing welding equipment structure in cooperation with the limiting wheel frame structures on both sides; a side-mounted suspension 2 located on the mounting base 1, which is used for mounting and heightening the inner clamping structure for welding; a side-mounted ring one 3 located on the mounting base 1, which is used to form one side frame of the welding equipment; a side-mounted ring two 4 located on the mounting base 1, which is on the same axis as the side-mounted ring one 3, is used to form one side frame of the welding equipment, and fixes the outer clamping structure for welding; a transfer rack 5 located on the side-mounted ring one 3 and the side-mounted ring two 4, which is used to connect the outputs of the side-mounted ring one 3 and the side-mounted ring two 4, and install the welding and anti-rust protection liquid spraying structure; an output motor one 11 and an output motor two 12 are located on the mounting base 1, and cooperate with the gear structure at the output end to generate the torque for driving the equipment to rotate. The top of the mounting base 1 is additionally equipped with limiting wheel frame structures distributed on both sides. The side-mounted suspension 2 is fixedly connected to one side of the mounting base 1. The side-mounted ring one 3 and the side-mounted ring two 4 are movably connected to the top sides of the mounting base 1 through the limiting wheel frame structure of the mounting base 1. The outer surface of the side-mounted ring one 3 is provided with a tooth key structure. The side-mounted ring two 4 is arranged in the area close to the side-mounted suspension 2. The transfer rack 5 is erected and fixed between the outer rings of the side-mounted ring one 3 and the side-mounted ring two 4. The inner clamping mechanism 6 is erected on the bracket structure at the top of the side-mounted suspension 2 and extends through the side-mounted ring two 4 to the space between the side-mounted ring one 3 and the side-mounted ring two 4. The outer clamping mechanism 7 is arranged in the central area of the side-mounted ring two 4. The welding spraying mechanism 8 is arranged on the transfer rack 5. The synchronous linkage mechanism 9 is sleeved on the inner clamping mechanism 6. The limiting and guiding mechanism 10 is fixed on the side of the side-mounted ring two 4 away from the side-mounted ring one 3. The output motor one 11 is arranged on the mounting base 1 and meshes with the tooth key structure of the side-mounted ring one 3 through the gear structure added at the output end. The output motor two 12 is arranged inside the side-mounted ring two 4. First, this device performs automatic welding operations on the tubular blanks and rectangular blanks of furniture, and at the same time sprays anti-rust protection paint on the welding points. The whole device is installed on the mounting base 1. The wheel frame structures erected on both sides of the mounting base 1 distribute the side-mounted ring one 3 and the side-mounted ring two 4 included in the device on the top sides of the mounting base 1, and can make the side-mounted ring one 3 and the side-mounted ring two 4 rotate on the top of the mounting base 1. The transfer rack 5 added between the side-mounted ring one 3 and the side-mounted ring two 4 makes the welding equipment form a cylindrical structure, and its interior is used as the welding operation area. This welding equipment includes an inner clamping mechanism 6 for stably clamping the inside of the furniture tubular blank. The inner clamping mechanism 6 also serves as the input and output structure of the blank. The body is fixed by the side-mounted suspension 2 added on one side of the mounting base 1 and extends and hangs between the side-mounted ring one 3 and the side-mounted ring two 4, can clamp from the inside of the furniture blank, and convey the blank to the inside of the transfer rack 5. The welding equipment also includes an outer clamping mechanism 7 for stably clamping the outer surface of the blank. The outer clamping mechanism 7 is installed on the side-mounted ring two 4 and extends into the transfer rack 5, and can stably clamp along the outer surface of the furniture blank.The outer clamping mechanism 7 and the inner clamping mechanism 6 can be linked through the additionally installed synchronous linkage mechanism 9. When the outer clamping mechanism 7 operates, it will drive the inner clamping mechanism 6 to release the clamping state through the synchronous linkage mechanism 9. The outer clamping mechanism 7 can rotate following the side ring one 3 and the side ring two 4 to adjust different clamping positions. During the rotation adjustment, the included limit guiding mechanism 10 of the equipment will drive the overall displacement of the synchronous linkage mechanism 9 and disengage from the inner clamping mechanism 6 and the outer clamping mechanism 7, driving the inner clamping mechanism 6 and the outer clamping mechanism 7 to release the linkage, so that during the rotation adjustment, the inner clamping mechanism 6 can hold the blank while remaining stationary. When the blank is clamped, the welding and spraying mechanism 8 included in the equipment can be used to weld the blank. After the welding is completed, when the welding structure included in the welding and spraying mechanism 8 shrinks, the rust-proof protective paint spraying structure will be deployed synchronously and spray the rust-proof protective paint on the welded blank. The welding and spraying mechanism 8 can rotate following the side ring one 3 and the side ring two 4 through the adapter bracket 5 to adjust different annular welding areas, or can also be displaced as a whole along the adapter bracket 5 to change different linear welding areas.,

[0050] Please refer to the appendix Figure 1 - appendix Figure 10The inner clamping mechanism 6 is located on the side suspension 2 and is on the same axis as the side ring 1 3 and the side ring 2 4, and is used to clamp the furniture blank to be welded from the inside. The inner clamping mechanism 6 includes a T-shaped fixed cylinder 61 and an outer toothed turntable 62. The T-shaped fixed cylinder 61 is composed of a cylindrical and disc-shaped structure. The cylindrical structure of the T-shaped fixed cylinder 61 is fixedly connected to the top of the side suspension 2. The outer toothed turntable 62 is sleeved and rotated on the cylindrical structure of the T-shaped fixed cylinder 61. The rail structure of the T-shaped fixed cylinder 61 is arranged on the outer surface of the cylindrical structure. A circumferentially distributed linear rail 63 is arranged on the side of the T-shaped fixed cylinder 61 away from the outer toothed turntable 62. A circumferentially distributed arc-shaped limiting groove 64 is provided, and a side of the T-shaped fixed cylinder 61 away from the outer gear turntable 62 is slidably connected with a circumferentially distributed built-in sliding rod 65 through a linear rail 63. The sliding end of the built-in sliding rod 65 is provided with a sliding column structure, and passes through the linear rail 63 to extend into the arc-shaped limiting groove 64. The inner side end of the built-in sliding rod 65 is provided with a multi-station clamping conveyor belt 66, and the multi-station clamping conveyor belt 66 extends between the side ring 1 3 and the side ring 2 4. The T-shaped fixed cylinder 61 included in the inner clamping mechanism 6 itself is composed of a cylindrical structure and a disc-shaped structure. The T-shaped fixed cylinder 61 is installed on the side suspension 2, and passes through the side ring 2 4 to extend to the turntable. In the receiving frame 5, the T-shaped fixed cylinder 61 is kept stationary as a whole by the side suspension 2, and the outer gear turntable 62 included in the inner clamping mechanism 6 is sleeved on the T-shaped fixed cylinder 61, and keeps a coaxial state with the T-shaped fixed cylinder 61, the side ring 1 3 and the side ring 2 4. The T-shaped fixed cylinder 61 is equipped with a circumferentially distributed linear rail 63, and the outer gear turntable 62 is equipped with a circumferentially distributed arc-shaped limiting groove 64 corresponding to the linear rail 63. The T-shaped fixed cylinder 61 is also equipped with a circumferentially distributed built-in sliding rod 65 through the linear rail 63. The built-in sliding rod 65 is embedded in the linear rail 63 through its own clamping column structure and extends to the arc-shaped limiting groove. 64, and a multi-station clamping conveyor belt 66 is installed on the inner side of the built-in slide bar 65, and extends from the side ring 2 4 to the side ring 1 3. The blank to be welded is first sleeved on all the multi-station clamping conveyor belts 66. When the outer tooth turntable 62 rotates, the arc-shaped limit groove 64 installed on the outer tooth turntable 62 will also rotate accordingly, and the clamping column structure engaged in the arc-shaped limit groove 64 will simultaneously drive the circumferentially distributed built-in slide bar 65 to move outward on the linear clamping rail 63, and drive the multi-station clamping conveyor belt 66 to expand outward at the same time, adhere and clamp along the inner wall of the furniture blank, and can transport and output the blank through the distributed multi-station clamping conveyor belts 66.

[0051] Please see attached Figure 1 -Attached Figure 12, the outer clamping mechanism 7 is located on the side-mounted ring two 4 and cooperates with the linear clamping rail 63 to clamp the furniture blank to be welded from the outside. The outer clamping mechanism 7 includes a positioning disk 71 and a bidirectional gear disk 72. The bidirectional gear disk 72 is fixedly connected to one side of the positioning disk 71. The positioning disk 71 is rotationally engaged on the inner side wall of the side-mounted ring two 4 through a clamping groove formed between the positioning disk 71 and the bidirectional gear disk 72. The bidirectional gear disk 72 is arranged outside the outer gear turntable 62. Tooth key structures are arranged on both the outer ring and the inner ring of the bidirectional gear disk 72. The outer ring tooth key structure of the bidirectional gear disk 72 is engaged with the gear structure installed at the output end of the output motor two 12. A suspension ring 73 is fixedly connected to the side of the positioning disk 71 away from the bidirectional gear disk 72 in an overhead form. A circumferentially distributed limiting sleeve 74 is rotatably connected between the suspension ring 73 and the positioning disk 71. A clamping arm 75 is slidably connected inside the limiting sleeve 74. The outer end of the limiting sleeve 74 is rotationally connected to the side-mounted ring two 4 in a circumferentially distributed form. An inclined clamping and conveying roller 76 is rotatably connected to the inner end of the clamping arm 75. The positioning disk 71 and the bidirectional gear disk 72 included in the outer clamping mechanism 7 are fixed to each other. The annular groove formed between the positioning disk 71 and the bidirectional gear disk 72 fits on the side-mounted ring two 4. The suspension ring 73 is suspended on the positioning disk 71 by an overhead structure. At the same time, multiple groups of circumferentially distributed limiting sleeves 74 are installed between the suspension ring 73 and the positioning disk 71, and the clamping arms 75 distributed in the same circumference are respectively sleeved through the limiting sleeves 74. The outer end of the clamping arm 75 is rotationally installed on the side-mounted ring two 4, and the inner end of the clamping arm 75 is installed with the clamping and conveying roller 76 that can also contact the blank. When the output motor two 12 installed inside the side-mounted ring two 4 drives the gear structure installed at the output end to rotate, the bidirectional gear disk 72 and the positioning disk 71 are driven to rotate. At the same time, the following rotating suspension ring 73 will pull the limiting sleeve 74 to displace circumferentially. The clamping arm 75 sleeved with the limiting sleeve 74 will contract inward or outward under the action of the displacement of the limiting sleeve 74, and the clamping and conveying roller 76 installed at its end will contact and clamp the outer surface of the furniture blank.

[0052] Please refer to the appendix Figure 1 - appendix Figure 14, the welding and spraying mechanism 8 is located on the adapter frame 5 and is used for welding furniture blanks and simultaneously spraying anti-rust protective paint after welding is completed. The welding and spraying mechanism 8 includes a linkage ring frame 81, a screw conveyor group 82, and a linkage spraying and irrigation assembly. The linkage ring frame 81 is clamped and slidably connected to the adapter frame 5. On one side of the screw conveyor group 82, there is a hydraulic pusher 83. The telescopic end of the hydraulic pusher 83 faces the inside of the adapter frame 5. At the end of the output end of the hydraulic pusher 83, there is a welding end. On the inner ring surface of the linkage ring frame 81, there are arc-shaped clamping rails 84 distributed in a circle. At the end of the output end of the hydraulic pusher 83, there is a first traction rod 86 rotatably connected. The screw conveyor group 82 is arranged on the adapter frame 5, and the nut pair end of the screw conveyor group 82 is fixedly connected to the linkage ring frame 81. The linkage spraying and irrigation assembly includes a linkage traction ring 85, a second traction rod 87, and an extension rod 88. The linkage traction ring 85 is movably connected to the inner ring side wall of the linkage ring frame 81 through the arc-shaped clamping rails 84 distributed in a circle. One end of the first traction rod 86 away from the hydraulic pusher 83 is rotatably connected to the linkage traction ring 85. On the side wall of the linkage traction ring 85, there are second traction rods 87 distributed in a circle. The extension rods 88 correspond to the number of the second traction rods 87 and are movably connected to the inner side wall of the linkage ring frame 81 in a circular distribution. One end of the second traction rod 87 away from the linkage traction ring 85 is rotatably connected to the corresponding extension rod 88. At the end of the extension rod 88 away from the linkage ring frame 81, there is a spraying and irrigation end. After the clamping of the blank is completed, the welding and spraying mechanism 8 installed on the adapter frame 5 is activated. The linkage ring frame 81 included in the welding and spraying mechanism 8 is embedded in the adapter frame 5 and can linearly displace along the adapter frame 5. The screw conveyor group 82 included in the welding and spraying mechanism 8 is installed on the adapter frame 5. By means of the screw driving the nut pair, the displacement of the linkage ring frame 81 on the adapter frame 5 is controlled to change the linear position of welding, and the hydraulic pusher 83 installed on the linkage ring frame 81 is activated, so as to drive the welding end installed on the telescopic end to approach the welding area. Also, by rotating the side ring one 3 and the side ring two 4, the linkage ring frame 81 is driven to rotate to change the circumferential position of welding. Until after welding is completed, as the output end of the hydraulic pusher 83 retracts, the linkage spraying and irrigation assembly included in the welding and spraying mechanism 8 will be synchronously activated. The linkage traction ring 85 included in the linkage spraying and irrigation assembly is restricted to rotate on the inner wall of the linkage ring frame 81 through the arc-shaped clamping rails 84 distributed inside the linkage ring frame 81. At the same time, a first traction rod 86 is installed between the linkage traction ring 85 and the telescopic end of the hydraulic pusher 83. When the hydraulic pusher 83 drives the telescopic end to contract, it will drive the first traction rod 86 to push the linkage traction ring 85 to rotate, and the second traction rods 87 distributed on the linkage traction ring 85 will be pushed synchronously, and the extension rods 88 distributed and installed on the inner wall of the linkage ring frame 81 will be simultaneously lifted and unfolded, and the spraying and irrigation heads installed at their ends will simultaneously face the welding point. After the welding end is retracted after welding is completed, the spraying and irrigation ends will be unfolded synchronously to spray anti-rust protective paint on the welding point in time.

[0053] Please refer to the appendixFigure 1 -Attached Figure 15 The synchronous linkage mechanism 9 is located on the inner clamping mechanism 6, and cooperates with the T-shaped fixed cylinder 61, the rail structure of the T-shaped fixed cylinder 61, the outer gear turntable 62 and the bidirectional gear disk 72 to drive the inner clamping structure and the inner clamping structure to run synchronously. The synchronous linkage mechanism 9 includes a multi-station fixed frame 91 and a guide pulley 93. A circumferential track groove is arranged on the inner side of the multi-station fixed frame 91. The multi-station fixed frame 91 is slidably connected to the outer surface of the T-shaped fixed cylinder 61. At the same time, the rail structure of the T-shaped fixed cylinder 61 is engaged with the guide pulley 93 of the multi-station fixed frame 91. In the track groove, the multi-station fixing frame 91 is rotatably connected with the embedded gear 92 distributed in a circumference, and the embedded gear 92 is arranged in the area between the outer gear rotating disk 62 and the two-way gear disk 72. The guide pulley 93 is arranged in a circumference on the outer surface of the multi-station fixing frame 91. The outer clamping mechanism 7 and the inner clamping mechanism 6 can be driven by the synchronous linkage mechanism 9 installed in the side ring 2 4. The multi-station fixing frame 91 included in the synchronous linkage mechanism 9 is sleeved on the cylindrical structure of the T-shaped fixing cylinder 61. At the same time, the inner side of the multi-station fixing frame 91 The card slots are matched with the card rails arranged on the outside of the T-shaped fixed cylinder 61, so that the multi-station fixed frame 91 is restricted to linear displacement on the T-shaped fixed cylinder 61, and cannot rotate. A displaceable and driven guide pulley 93 is also installed on the outside of the multi-station fixed frame 91, and the embedded gears 92 installed on the circumference of the multi-station fixed frame 91 are arranged between the two-way toothed disc 72 and the outer toothed rotating disc 62, and can be engaged with the tooth keys of the outer toothed rotating disc 62 and the inner tooth keys of the two-way toothed disc 72, so that the outer clamping mechanism 7 needs to be on the outer side of the blank. In the practice of clamping, the bidirectional toothed disc 72 is driven to rotate by the output motor 2 12, and its inner tooth key transmits the rotational torque to the embedded gear 92, and multiple sets of circumferentially distributed embedded gears 92 simultaneously transmit the rotational torque to the outer toothed turntable 62 to drive the outer toothed turntable 62 to rotate, thereby causing the multi-station clamping conveyor belt 66 to shrink at the same time to release the inner clamping of the blank, and also drive the inner clamping mechanism 6 to perform inner clamping through the output motor 2 12 and the synchronous linkage mechanism 9, while the outer clamping mechanism 7 will simultaneously release the outer clamping of the blank.

[0054] Please see attached Figure 1 -Attached Figure 16, the limit guiding mechanism 10 is located on the mounting base 1 and is used to synchronously drive the synchronous linkage mechanism 9 to disengage during equipment commutation in cooperation with the multi-station fixing frame 91 and the guiding pulley 93. The limit guiding mechanism 10 includes a wrapping cylinder 101 fixedly connected to the inner side of the side ring two 4 and surrounding the synchronous linkage mechanism 9. A stepped groove 102 is provided on the inner side wall of the wrapping cylinder 101. The stepped groove 102 is composed of a plurality of circumferentially distributed and V-shaped grooves, and adjacent grooves are interconnected. The guiding pulley 93 is slidably embedded in the stepped groove 102. The wrapping cylinder 101 included in the limit guiding mechanism 10 is a cylindrical structure. While being fixed to the inner side of the side ring two 4, it also wraps around the synchronous linkage mechanism 9. At the same time, the wrapping cylinder 101 will rotate with the side ring two 4 and will also rotate synchronously with the overall outer clamping mechanism 7. A stepped groove 102 is provided on the inner wall of the wrapping cylinder 101. The stepped groove 102 is composed of a plurality of V-shaped grooves. The guiding pulleys 93 arranged around the multi-station fixing frame 91 also correspondingly engage and are embedded in the respective V-shaped grooves of the stepped groove 102. As the stepped groove 102 rotates with the wrapping cylinder 101, the guiding pulleys 93 around the multi-station fixing frame 91 will also move within the V-shaped grooves of the stepped groove 102. Due to the V-shaped movement track, the guiding pulleys 93 and the multi-station fixing frame 91 are driven to linearly reciprocate, so that the embedded gear 92 disengages from the meshing contact with the external gear turntable 62 and the bidirectional gear disc 72. After the rotation and commutation stop, the guiding pulley 93 will also drive the embedded gear 92 to fall again and re-engage with the bidirectional gear disc 72 and the external gear turntable 62, so that the inner clamping mechanism 6 and the outer clamping mechanism 7 can return to the linked operation state again.

[0055] Working principle: First, the device automatically welds tubular blanks and rectangular blanks of furniture, and at the same time sprays anti-rust protective paint on the welding points. The whole device is installed on the mounting base 1. The wheel frame structures installed on both sides of the mounting base 1 distribute the side ring 1-3 and the side ring 2-4 included in the device on both sides of the top of the mounting base 1, and can make the side ring 1-3 and the side ring 2-4 rotate on the top of the mounting base 1. The transfer frame 5 installed between the side ring 1-3 and the side ring 2-4 makes the welding device form a cylindrical structure, and its interior is used as the welding operation area. The welding device includes an inner clamping mechanism 6 for stably clamping the interior of the furniture tubular blank. The inner clamping mechanism 6 also serves as the input and output structure of the blank. The body is fixed by the side suspension 2 installed on one side of the mounting base 1 and extends suspended between the side ring 1-3 and the side ring 2-4. It can clamp from the inside of the furniture blank and convey the blank to the inside of the transfer frame 5. The welding device also includes an outer clamping mechanism 7 for stably clamping the outer surface of the blank. The outer clamping mechanism 7 is installed on the side ring 2-4 and extends into the transfer frame 5, and can stably clamp along the outer surface of the furniture blank. The outer clamping mechanism 7 and the inner clamping mechanism 6 can be linked through the added synchronous linkage mechanism 9. When the outer clamping mechanism 7 operates, it will drive the inner clamping mechanism 6 to release the clamping state through the synchronous linkage mechanism 9. The outer clamping mechanism 7 can rotate following the side ring 1-3 and the side ring 2-4 to adjust different clamping positions. When rotating and adjusting, the included limit guiding mechanism 10 of the device will drive the overall displacement of the synchronous linkage mechanism 9 and disengage from the inner clamping mechanism 6 and the outer clamping mechanism 7, driving the inner clamping mechanism 6 and the outer clamping mechanism 7 to release the linkage, so that when rotating and adjusting, the inner clamping mechanism 6 can clamp the blank and remain stationary. When the blank is clamped, the welding and spraying mechanism 8 included in the device can weld the blank. After the welding is completed, when the welding structure included in the welding and spraying mechanism 8 contracts, the anti-rust protective paint spraying structure will be deployed synchronously and spray anti-rust protective paint on the welded blank. The welding and spraying mechanism 8 can rotate following the side ring 1-3 and the side ring 2-4 through the transfer frame 5 to adjust different annular welding areas, and can also displace as a whole along the transfer frame 5 to change different linear welding areas. First, the side ring 1-3 and the side ring 2-4 included in the device are fixed to each other through the transfer frame 5 and installed on the wheel frame structure at the top of the mounting base 1. The tooth key structure installed on the outer ring part of the side ring 1-3 meshes with the gear structure installed on the output end of the output motor 1-11, so that the side ring 1-3, the side ring 2-4, the transfer frame 5, the outer clamping mechanism 7, the welding and spraying mechanism 8 and the limit guiding mechanism 10 can rotate under the drive of the output motor 1-11. The T-shaped fixing cylinder 61 included in the inner clamping mechanism 6 is composed of a cylindrical structure and a disc-shaped structure itself. The T-shaped fixing cylinder 61 is installed on the side suspension 2 and passes through the side ring 2-4 and extends into the transfer frame 5.The T-shaped fixed cylinder 61 is kept stationary as a whole by means of the side-mounted suspension 2. The outer-toothed turntable 62 included in the inner clamping mechanism 6 is sleeved on the T-shaped fixed cylinder 61 and is coaxial with the T-shaped fixed cylinder 61, the side-mounted ring one 3 and the side-mounted ring two 4. The T-shaped fixed cylinder 61 is equipped with circumferentially distributed linear clamping rails 63, and the outer-toothed turntable 62 is correspondingly equipped with circumferentially distributed arc-shaped limiting grooves 64 for the linear clamping rails 63. The T-shaped fixed cylinder 61 is also equipped with circumferentially distributed built-in sliding rods 65 through the linear clamping rails 63. While the built-in sliding rods 65 are inserted into the linear clamping rails 63 through their own clamping post structures, they extend into the arc-shaped limiting grooves 64. A multi-station clamping conveyor belt 66 is installed inside the built-in sliding rods 65 and extends from the side-mounted ring two 4 to the side-mounted ring one 3. The workpieces to be welded are first sleeved on all the multi-station clamping conveyor belts 66. When the outer-toothed turntable 62 rotates, the arc-shaped limiting grooves 64 installed on the outer-toothed turntable 62 will also rotate accordingly. The clamping post structures clamped in the arc-shaped limiting grooves 64 will simultaneously drive the circumferentially distributed built-in sliding rods 65 to displace outward on the linear clamping rails 63 and drive the multi-station clamping conveyor belts 66 to expand outward simultaneously, so as to attach and clamp along the inner wall of the furniture workpiece. The workpieces can be conveyed and output through the distributed multi-station clamping conveyor belts 66. The positioning disk 71 and the bidirectional gear disk 72 included in the outer clamping mechanism 7 are fixed to each other. The annular groove formed between the positioning disk 71 and the bidirectional gear disk 72 fits on the side-mounted ring two 4. A suspension ring 73 is suspended on the positioning disk 71 by means of an overhead structure. At the same time, multiple groups of circumferentially distributed limiting sleeves 74 are installed between the suspension ring 73 and the positioning disk 71, and clamping arms 75 distributed in the same circumference are respectively sleeved through the limiting sleeves 74. The outer ends of the clamping arms 75 are rotatably installed on the side-mounted ring two 4, and the inner ends of the clamping arms 75 are installed with clamping conveyor rollers 76 that can also contact the workpiece. When the output motor two 12 installed inside the side-mounted ring two 4 drives the gear structure installed at the output end to rotate, it drives the bidirectional gear disk 72 and the positioning disk 71 to rotate. At the same time, the following rotating suspension ring 73 will pull the limiting sleeves 74 to displace circumferentially. The clamping arms 75 sleeved with the limiting sleeves 74 will contract inward or outward under the action of the displacement of the limiting sleeves 74, and the clamping conveyor rollers 76 installed at their ends will contact and clamp the outer surface of the furniture workpiece. The outer clamping mechanism 7 and the inner clamping mechanism 6 can be driven through the synchronous linkage mechanism 9 installed inside the side-mounted ring two 4. The multi-station fixing frame 91 included in the synchronous linkage mechanism 9 is sleeved on the cylindrical structure of the T-shaped fixed cylinder 61. At the same time, the clamping grooves arranged inside the multi-station fixing frame 91 are mutually fitted with the clamping rails arranged on the outer side of the T-shaped fixed cylinder 61, so that the multi-station fixing frame 91 is restricted from linearly displacing on the T-shaped fixed cylinder 61 and cannot rotate. A displaceable driving guide pulley 93 is also installed on the outer side of the multi-station fixing frame 91. The embedded gears 92 installed circumferentially on the multi-station fixing frame 91 are arranged between the bidirectional gear disk 72 and the outer-toothed turntable 62.It can also be meshed with the tooth keys of the outer tooth turntable 62 and the inner tooth keys of the bidirectional tooth disc 72, enabling the outer clamping mechanism 7 to clamp the outer side of the workpiece. During the operation, the bidirectional tooth disc 72 is driven to rotate by the second output motor 12. Its inner tooth keys transmit the rotational torque to the embedded gears 92, and multiple circumferentially distributed embedded gears 92 simultaneously conduct the rotational torque to the outer tooth turntable 62 to drive the outer tooth turntable 62 to rotate, thereby causing the multi-station clamping conveyor belt 66 to contract simultaneously, releasing the inner clamping of the workpiece. At the same time, the inner clamping mechanism 6 is driven by the second output motor 12 and the synchronous linkage mechanism 9 to perform inner clamping, and the outer clamping mechanism 7 will synchronously release the outer clamping of the workpiece. When the entire outer clamping mechanism 7 rotates and positions along with the side-mounted ring two 4, the synchronous linkage mechanism 9 will adjust its position following the synchronously rotating limit guiding mechanism 10 and disengage from the outer clamping mechanism 7 and the inner clamping mechanism 6 to cooperate with the rotation of the outer clamping mechanism 7 without experiencing motion interference due to the static inner clamping mechanism 6. The wrapping cylinder 101 included in the limit guiding mechanism 10 is a cylindrical structure. While being fixed inside the side-mounted ring two 4, it also wraps around the synchronous linkage mechanism 9. At the same time, the wrapping cylinder 101 will rotate along with the side-mounted ring two 4 and will also rotate synchronously with the entire outer clamping mechanism 7. The inner wall of the wrapping cylinder 101 is provided with a stepped groove 102, which consists of multiple V-shaped grooves. The guiding pulleys 93 arranged around the multi-station fixing frame 91 also correspondingly embed into the respective V-shaped grooves of the stepped groove 102. As the stepped groove 102 rotates along with the wrapping cylinder 101, the guiding pulleys 93 around the multi-station fixing frame 91 will also move within the V-shaped grooves of the stepped groove 102. Due to the V-shaped movement trajectory, it drives the guiding pulleys 93 and the multi-station fixing frame 91 to linearly reciprocate, causing the embedded gears 92 to disengage from the meshing contact with the outer tooth turntable 62 and the bidirectional tooth disc 72. After the rotation and positioning stop, the guiding pulleys 93 will also drive the embedded gears 92 to fall again and re-engage with the bidirectional tooth disc 72 and the outer tooth turntable 62, enabling the inner clamping mechanism 6 and the outer clamping mechanism 7 to return to the linked operation state. After the workpiece is clamped, the welding and spraying mechanism 8 installed on the transfer rack 5 is activated. The linkage ring frame 81 included in the welding and spraying mechanism 8 is embedded in the transfer rack 5 and can linearly displace along the transfer rack 5. The screw conveying group 82 included in the welding and spraying mechanism 8 is installed on the transfer rack 5. By means of a screw driving nut pair, it controls the displacement of the linkage ring frame 81 on the transfer rack 5 to change the straight-line position of the welding, and the hydraulic pusher 83 installed on the linkage ring frame 81 is activated, thereby driving the welding head installed at the telescopic end to approach the welding area. It also drives the linkage ring frame 81 to rotate by rotating the side-mounted ring one 3 and the side-mounted ring two 4 to change the circumferential position of the welding. Until after the welding is completed, as the hydraulic pusher 83 retracts its output end, the linkage spraying assembly included in the welding and spraying mechanism 8 will be synchronously activated.The linkage traction ring 85 included in the linkage sprinkler component is restricted to rotate on the inner wall of the linkage ring frame 81 through the arc-shaped rail 84 distributed on the inner side of the linkage ring frame 81. At the same time, a first traction rod 86 is installed between the linkage traction ring 85 and the telescopic end of the hydraulic pusher 83. When the hydraulic pusher 83 drives the telescopic end to contract, it will drive the first traction rod 86 to push the linkage traction ring 85 to rotate, and the second traction rod 87 distributed on the linkage traction ring 85 will be pushed synchronously, and the extension rod 88 installed on the inner wall of the linkage ring frame 81 will be jacked up and unfolded at the same time. The sprinkler heads installed at its end will face the welding point at the same time. After the welding head is retracted after welding is completed, the sprinkler head will be unfolded synchronously to spray anti-rust protective paint on the welding point in time.

[0056] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional welding device for furniture manufacturing, characterized in that: include: The mounting base (1) cooperates with the limiting wheel frame structures on both sides to fix the furniture manufacturing welding equipment structure; The side suspension (2) is located on the mounting base (1) and is used to elevate and install the welded inner clamping structure; A side ring (3) is located on the mounting base (1) and is used to form a side frame of the welding device; The side ring 2 (4) is located on the mounting base (1) and is on the same axis as the side ring 1 (3), and is used to form a side frame of the welding equipment and fix the outer clamping structure of the welding; The adapter frame (5) is located on the side ring one (3) and the side ring two (4), and is used to connect the outputs of the side ring one (3) and the side ring two (4), and to install welding and anti-rust protection liquid spraying structures; The inner clamping mechanism (6) is located on the side suspension (2) and is coaxial with the side ring 1 (3) and the side ring 2 (4), and is used to clamp the furniture blank to be welded from the inside; The outer clamping mechanism (7) is located on the side ring 2 (4) and cooperates with the linear clamping rail (63) to clamp the furniture blank to be welded from the outside; The welding spraying mechanism (8) is located on the adapter frame (5) and is used for welding the furniture blanks and simultaneously starting the spraying of the anti-rust protective paint after the welding is completed; The synchronous linkage mechanism (9) is located on the inner clamping mechanism (6), and cooperates with the T-shaped fixing cylinder (61), the clamping rail structure of the T-shaped fixing cylinder (61), the outer gear rotating disk (62) and the bidirectional gear disk (72) to drive the inner clamping structure and the inner clamping structure to operate synchronously; The position limiting guide mechanism (10) is located on the mounting base (1), and cooperates with the multi-station fixing frame (91) and the guide pulley (93) to synchronously drive the synchronous linkage mechanism (9) to disengage when the device is reversed; Output motor 1 (11) and output motor 2 (12) are located on the mounting base (1) and cooperate with the gear structure at the output end to generate torque for driving the device to rotate.

2. A multifunctional welding device for furniture manufacturing according to claim 1, characterized in that: The top of the mounting base (1) is provided with a limiting wheel frame structure distributed on both sides, the side suspension (2) is fixedly connected to one side of the mounting base (1), the side ring 1 (3) and the side ring 2 (4) are movably connected to both sides of the top of the mounting base (1) through the limiting wheel frame structure of the mounting base (1), the outer surface of the side ring 1 (3) is provided with a tooth key structure, the side ring 2 (4) is arranged in an area close to the side suspension (2), the adapter frame (5) is fixed between the side ring 1 (3) and the outer ring of the side ring 2 (4), the inner clamping mechanism (6) is installed on the bracket structure at the top of the side suspension (2) and passes through The side ring 2 (4) extends to between the side ring 1 (3) and the side ring 2 (4); the outer clamping mechanism (7) is arranged in the axial region of the side ring 2 (4); the welding spraying mechanism (8) is arranged on the adapter frame (5); the synchronous linkage mechanism (9) is sleeved on the inner clamping mechanism (6); the limiting guide mechanism (10) is fixed on the side of the side ring 2 (4) away from the side ring 1 (3); the output motor 1 (11) is arranged on the mounting base (1) and meshed with the tooth key structure of the side ring 1 (3) through the gear structure installed at the output end; the output motor 2 (12) is arranged on the inner side of the side ring 2 (4).

3. A multifunctional welding device for furniture manufacturing according to claim 1, characterized in that: The inner clamping mechanism (6) comprises a T-shaped fixed cylinder (61) and an outer toothed rotating disk (62). The T-shaped fixed cylinder (61) is composed of a cylindrical and a disk-shaped structure. The cylindrical structure of the T-shaped fixed cylinder (61) is fixedly connected to the top of the side suspension (2). The outer toothed rotating disk (62) is sleeved and rotated on the cylindrical structure of the T-shaped fixed cylinder (61). The rail structure of the T-shaped fixed cylinder (61) is arranged on the outer surface of the cylindrical structure. A circumferentially distributed linear rail (63) is arranged on one side of the T-shaped fixed cylinder (61) away from the outer toothed rotating disk (62). The turntable (62) is provided with arc-shaped limit grooves (64) distributed in a circle. The side of the T-shaped fixed cylinder (61) away from the outer gear turntable (62) is slidably connected with a built-in sliding rod (65) distributed in a circle through a linear rail (63). The sliding end of the built-in sliding rod (65) is provided with a sliding column structure, and passes through the linear rail (63) to extend into the arc-shaped limit groove (64). The inner side end of the built-in sliding rod (65) is provided with a multi-station clamping conveyor belt (66), and the multi-station clamping conveyor belt (66) extends between the side ring one (3) and the side ring two (4).

4. A multifunctional welding device for furniture manufacturing according to claim 1, characterized in that: The outer clamping mechanism (7) comprises a positioning disc (71) and a bidirectional toothed disc (72); the bidirectional toothed disc (72) is fixedly connected to one side of the positioning disc (71); the positioning disc (71) is engaged with a groove formed between the bidirectional toothed disc (72) and rotates on the inner side wall of the side ring 2 (4); the bidirectional toothed disc (72) is arranged on the periphery of the outer toothed rotating disc (62); the outer ring and the inner ring of the bidirectional toothed disc (72) are both provided with a tooth key structure; the outer ring teeth of the bidirectional toothed disc (72) are The key structure is meshed with a gear structure installed at the output end of the second output motor (12); a side of the positioning disk (71) away from the bidirectional toothed disk (72) is fixedly connected to a suspension ring (73) in an overhead manner; a circumferentially distributed limiting sleeve (74) is rotatably connected between the suspension ring (73) and the positioning disk (71); a clamping arm (75) is slidably connected inside the limiting sleeve (74); and an outer end of the limiting sleeve (74) is rotatably connected to the side ring (4) in a circumferentially distributed manner.

5. A multifunctional welding device for furniture manufacturing according to claim 1, characterized in that: The welding spray attachment mechanism (8) comprises a linkage ring frame (81), a screw conveying group (82) and a linkage spray irrigation assembly. The linkage ring frame (81) is clamped and slidably connected to the adapter frame (5). A hydraulic push member (83) is arranged on one side of the screw conveying group (82). The telescopic end of the hydraulic push member (83) faces the inside of the adapter frame (5). A welding end is arranged at the output end of the hydraulic push member (83). The inner ring surface of the linkage ring frame (81) is provided with arc-shaped clamping rails (84) distributed circumferentially. The output end of the hydraulic push member (83) is rotatably connected to a traction rod (86).

6. A multifunctional welding device for furniture manufacturing according to claim 1, characterized in that: The synchronous linkage mechanism (9) comprises a multi-station fixed frame (91) and a guide pulley (93). A circumferential track groove is arranged on the inner side of the multi-station fixed frame (91). The multi-station fixed frame (91) is slidably connected to the outer surface of the T-shaped fixed cylinder (61). At the same time, the track structure of the T-shaped fixed cylinder (61) is engaged in the track groove of the multi-station fixed frame (91). The multi-station fixed frame (91) is rotatably connected with a circumferentially distributed embedded gear (92). The embedded gear (92) is arranged in the area between the external gear rotating disk (62) and the bidirectional gear disk (72). The guide pulley (93) is circumferentially distributed and arranged on the outer surface of the multi-station fixed frame (91).

7. A multifunctional welding device for furniture manufacturing according to claim 1, characterized in that: The position limiting guide mechanism (10) comprises a wrapping tube (101) fixedly connected to the inner side of the side ring 2 (4) and surrounding the synchronous linkage mechanism (9); the inner side wall of the wrapping tube (101) is provided with a stepped groove (102); the stepped groove (102) is composed of a plurality of circumferentially distributed and V-shaped grooves, adjacent grooves are interconnected, and the guide pulley (93) is embedded and slidable in the stepped groove (102).

8. A multifunctional welding device for furniture manufacturing according to claim 4, characterized in that: The inner side of the clamping arm (75) is rotatably connected to a clamping conveying roller (76) which is arranged obliquely.

9. A multifunctional welding device for furniture manufacturing according to claim 5, characterized in that: The screw conveying group (82) is arranged on the adapter frame (5), and the nut secondary end of the screw conveying group (82) is fixedly connected to the linkage ring frame (81).

10. The multifunctional welding device for furniture manufacturing according to claim 5, characterized in that: The linkage sprinkler assembly comprises a linkage traction ring (85), a second traction rod (87) and an extension rod (88); the linkage traction ring (85) is movably connected to the inner ring side wall of the linkage ring frame (81) through a circumferentially distributed arc-shaped clamping rail (84); one end of the first traction rod (86) away from the hydraulic pushing member (83) is rotatably connected to the linkage traction ring (85); the side wall of the linkage traction ring (85) is rotatably connected to the second traction rod (87) distributed in a circumferential manner; the extension rods (88) are movably connected to the inner side wall of the linkage ring frame (81) in a circumferentially distributed manner corresponding to the number of the second traction rods (87); one end of the second traction rod (87) away from the linkage traction ring (85) is rotatably connected to the corresponding extension rod (88); and one end of the extension rod (88) away from the linkage traction ring (81) is provided with a sprinkler end.

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