A fireplace arc welding tool

Abstract

The present invention relates to the technical field of arc-shaped workpiece welding for fireplaces, and discloses an arc-shaped welding tool for fireplaces, wherein a limiting mechanism is provided in the middle of the top of the base, a rotating and lifting mechanism is provided on the top of the limiting mechanism, a welding mechanism is provided on the back end of the base, the rotating and lifting mechanism includes a rotating assembly and a lifting assembly, the rotating assembly is provided on the top of the limiting mechanism, the lifting assembly is provided on the inner side of the rotating assembly, the rotating assembly includes a fixed frame, the fixed frame is fixedly connected to the top of the limiting mechanism, and a rotating table is rotatably connected to the inner side of the fixed frame. A first motor drives a first worm to rotate, so that the first worm drives a rotating cylinder and a rotating rod to rotate through a first worm gear, so that the rotating cylinder can drive a linkage plate to rotate through a linkage frame, so that the linkage plate drives the rotating table to rotate, so that the arc-shaped fireplace parts placed on the top of the rotating table can be rotated, so that the device can weld the arc-shaped fireplace parts at different positions.

Description

Technical Field

[0001] The invention relates to the technical field of fireplace arc-shaped workpiece welding, in particular to a fireplace arc-shaped welding tool. Background Art

[0002] A fireplace is a wall-mounted fireplace designed for heating. Its structure typically includes a hearth, a bridge, a door, and a flue. The hearth is the primary combustion area, typically designed to accommodate a sufficient amount of firewood or coal to ensure long-lasting, stable combustion. The bridge, located beneath the hearth, supports the firewood and facilitates air circulation, promoting a more complete combustion. A curved fireplace is a unique design aesthetic characterized by the curved lines of its body and door.

[0003] Publication number CN 218926758 U discloses a fireplace arc welding tool. An operator places arc-shaped product one and arc-shaped product two on a positioning plate, aligns them, then presses a handle to move a pull rod forward. A quick positioning clamp is used to push the positioning plate tightly to apply pressure, ensuring that arc-shaped product one and arc-shaped product two fit tightly together before welding. This improves the flatness and fit of the entire arc-shaped product after welding.

[0004] The arc-shaped welding fixture of the fireplace clamps the fireplace parts by means of a quick positioning clamp, but the device requires the staff to operate the quick positioning clamps one by one to clamp the fireplace parts, which is troublesome and affects work efficiency, and therefore needs to be improved. Summary of the Invention

[0005] The purpose of the present invention is to provide a fireplace arc welding tool to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a fireplace arc welding tool, comprising a base, a limiting mechanism is provided in the middle of the top of the base, a rotating lifting mechanism is provided on the top of the limiting mechanism, and a welding mechanism is provided at the back end of the base;

[0007] The rotating and lifting mechanism includes a rotating assembly and a lifting assembly, wherein the rotating assembly is arranged on the top of the limiting mechanism, and the lifting assembly is arranged inside the rotating assembly;

[0008] The top of the driving mechanism is mounted on a link cam of the second cam, and the bottom of the driving mechanism is mounted on a link cam of the second cam, and the transmission gear is mounted on a link cam of the second cam, and the transmission gear is mounted on a link cam of the second cam.

[0009] According to the above technical solution, a circular groove corresponding to the movement trajectory of the sliding block is opened on the inner side of the fixing frame, and the sliding block is slidably connected inside the circular groove. The circular groove makes the sliding block more stable during operation.

[0010] According to the above technical solution, a limiting groove corresponding to the sliding trajectory of the first worm gear is opened inside the rotating rod and the rotating cylinder, and the first worm gear is slidably connected to the inside of the limiting groove, so that the first worm gear can slide inside the rotating rod and the rotating cylinder, so that the first worm gear can drive the rotating rod and the rotating cylinder to rotate at the same time.

[0011] According to the above technical solution, the lifting assembly includes an arc-shaped plate, which is fixedly connected to the inner side of the rotating frame. The outer periphery of the arc-shaped plate is rotatably connected to a linkage gear, and the outer periphery of the linkage gear is meshed with a rotating gear. The interior of the rotating gear is fixedly connected to a linkage rod, and the bottom of the linkage rod is rotatably connected to a support frame, and the support frame is fixedly connected to the bottom of the rotating table. The top of the linkage rod is fixedly connected to a clamping plate, and the inside of the clamping plate is slidably connected to an insertion rod, and the insertion rod is inserted into the inner side of the rotating table. The top of the insertion rod is fixedly connected to a pull plate, and the outer periphery of the pull plate is sleeved with a spring.

[0012] According to the above technical solution, the top of the spring is fixedly connected to the bottom of the pull plate, and the bottom of the spring is fixedly connected to the clamping plate. When the turntable does not squeeze the insertion rod, the spring can drive the insertion rod to be inserted into the inside of the turntable through the pull plate, limiting the position of the clamping plate, so that the clamping plate can clamp the arc-shaped fireplace parts more stably.

[0013] According to the above technical solution, a sliding groove corresponding to the sliding track of the linkage gear is opened inside the rotating rod, and the linkage gear is slidably connected to the inside of the sliding groove, so that the linkage gear can slide on the periphery of the rotating rod, so that the linkage gear can be away from the rotating gear, so that when the linkage gear rotates, it cannot drive the rotating gear to rotate, so that the clamping plate can clamp the fireplace parts more stably.

[0014] According to the above technical solution, the welding mechanism includes a base plate, the top of the base plate is fixedly connected to a connecting frame, the back end of the connecting frame is fixedly connected to a load-bearing plate, the top of the load-bearing plate is fixedly connected to a second motor, the right side of the second motor is fixedly connected to a second worm, the front side of the second worm is engaged with a second worm gear, the bottom of the second worm gear is fixedly connected to a rotating part, the internal thread of the second worm gear is connected to a threaded rod, the bottom of the threaded rod is rotatably connected to a limit plate, the left and right sides of the top of the limit plate are fixedly connected to sliding bars, the sliding bar is fixedly connected to the bottom of the lifting plate, the top of the threaded rod is fixedly connected to the lifting plate, the front side of the lifting plate is fixedly connected to a moving plate, the front side of the lifting plate is fixedly connected to a second cylinder, and the back end of the second cylinder is fixedly connected to a welder.

[0015] According to the above technical solution, an arc-shaped groove corresponding to the motion trajectory of the rotating part is opened inside the load-bearing plate, and the rotating part is rotatably connected to the inside of the arc-shaped groove. The opened arc-shaped groove makes the rotating part more stable during the rotation process. The set rotating part can support the second worm gear, making the second worm gear more stable during the rotation process.

[0016] According to the above technical solution, the limiting mechanism includes a load-bearing plate, which is fixedly connected to the bottom of the fixed frame, and the load-bearing plate is fixedly connected to the top of the base. The bottom of the load-bearing plate is fixedly connected to a third cylinder, the left side of the third cylinder is fixedly connected to a friction plate, a friction wheel is provided on the left side of the friction plate, a connecting rod is fixedly connected to the inside of the friction wheel, the top of the connecting rod is fixedly connected to the bottom of the rotating cylinder, the bottom of the connecting rod is fixedly connected to the bottom of the support plate, and the bottom of the friction plate is fixedly connected to a slider.

[0017] According to the above technical solution, a sliding groove corresponding to the movement trajectory of the slider is opened inside the load-bearing plate and the base, and the slider is slidably connected inside the sliding groove. Through the opened sliding groove, the slider and the friction plate are more stable during the movement process.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0019] 1. The arc-shaped fireplace welding tool is used in conjunction with a rotating assembly, a first worm gear, a rotating cylinder, a support plate, a linkage plate, a fixed frame, a rotating frame, a first cylinder, a rotating table, a limiting cylinder, a rotating rod, a first worm, a first motor, a sliding block, a linkage frame and a support member, so that the rotating cylinder can drive the linkage plate to rotate through the linkage frame, and the linkage plate drives the rotating table to rotate, so that the arc-shaped fireplace parts placed on the top of the rotating table can be rotated, so that the device can weld the arc-shaped fireplace parts at different positions.

[0020] 2. The arc-shaped welding fixture of the fireplace is used in conjunction with the provided lifting assembly, the arc plate, the linkage gear, the rotating gear, the support frame, the linkage rod, the spring, the pull plate, the clamping plate and the insertion rod. The linkage gear drives the linkage rod to rotate through the rotating gear, and the linkage rod drives the clamping plate to move, so that the clamping plate can clamp the arc-shaped fireplace parts. When the clamping plate moves, it can drive the insertion rod to move, so that the insertion rod can be inserted into the rotating table, and the position of the clamping plate is limited, so that the clamping plate can clamp the arc-shaped fireplace parts more stably, so that the device can be more stable when welding the arc-shaped fireplace parts.

[0021] 3. The arc-shaped fireplace welding fixture, through the provided welding mechanism, is used in conjunction with the provided base plate, second motor, second worm, slide bar, lifting plate, connecting frame, movable plate, second cylinder, welder, limit plate, rotating part, second worm gear, load-bearing plate and threaded rod, so that the welder can weld arc-shaped fireplace parts. When the welding position of the welder needs to be adjusted, the second cylinder drives the welder to move, so that the device can weld arc-shaped fireplace parts at different positions.

[0022] 4. The arc-shaped welding fixture of the fireplace has a limiting mechanism. When the rotating rod needs to be rotated alone, the friction disk is driven to move by the third cylinder, so that the friction disk can fit with the friction force. When the rotating rod rotates, the rotating cylinder is not easily driven to rotate the friction wheel through the connecting rod, making the rotating cylinder more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a three-dimensional diagram of the structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the rotating lifting mechanism;

[0026] Figure 3 Schematic diagram of the rotating assembly structure;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixing frame;

[0028] Figure 5 Schematic diagram of the structure of the first motor, the first worm gear and the first worm;

[0029] Figure 6 Schematic diagram of the lifting component structure;

[0030] Figure 7 Schematic diagram of the clamping plate structure;

[0031] Figure 8 It is a schematic diagram of the structure of the plug rod, pull plate and spring;

[0032] Figure 9 It is a schematic diagram of the welding mechanism structure;

[0033] Figure 10 Schematic diagram of the structure of the limiting plate, rotating member and second worm gear;

[0034] Figure 11 It is a schematic diagram of the limiting mechanism structure.

[0035] In the figure: 1. base; 2. limiting mechanism; 21. bearing plate; 22. friction wheel; 23. connecting rod; 24. friction plate; 25. slider; 26. third cylinder; 3. rotating lifting mechanism; 31. rotating assembly; 311. first worm gear; 312. rotating cylinder; 313. supporting plate; 314. linkage plate; 315. fixing frame; 316. rotating frame; 317. first cylinder; 318. rotating table; 319. limiting cylinder; 3191. rotating rod; 3192. first worm gear; 3193. first motor; 3194. sliding block; 3195. linkage frame; 31 96. Support member; 32. Lifting assembly; 321. Arc plate; 322. Linking gear; 323. Rotating gear; 324. Support frame; 325. Linking rod; 326. Spring; 327. Pull plate; 328. Clamping plate; 329. Insert rod; 4. Welding mechanism; 41. Bottom plate; 42. Second motor; 43. Second worm; 44. Slide; 45. Lifting plate; 46. Connecting frame; 47. Moving plate; 48. Second cylinder; 49. Welder; 401. Limiting plate; 402. Rotating member; 403. Second worm gear; 404. Load-bearing plate; 405. Threaded rod. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] The present invention provides the following technical solutions:

[0038] Example 1

[0039] Combine Figure 1-11 A fireplace arc welding tool comprises a base 1, a limiting mechanism 2 is provided in the middle of the top of the base 1, a rotating lifting mechanism 3 is provided on the top of the limiting mechanism 2, and a welding mechanism 4 is provided at the back end of the base 1;

[0040] The rotating and lifting mechanism 3 includes a rotating component 31 and a lifting component 32. The rotating component 31 is arranged on the top of the limiting mechanism 2, and the lifting component 32 is arranged inside the rotating component 31.

[0041] The rotating assembly 31 includes a fixed frame 315, which is fixedly connected to the top of the limiting mechanism 2. The inner side of the fixed frame 315 is rotatably connected to a rotating platform 318. The bottom of the rotating platform 318 is fixedly connected to a first cylinder 317. The bottom of the first cylinder 317 is fixedly connected to a rotating frame 316. The bottom of the rotating frame 316 is fixedly connected to a support plate 313. The top of the support plate 313 is fixedly connected to a support member 3196. The outer periphery of the support member 3196 is rotatably connected to a first worm gear 311. The right side of the first worm gear 311 is meshed with a first worm 3192. The front side of the first worm 3192 is fixedly connected to a first motor 3193. The first motor 319 3 is fixedly connected to the top of the support plate 313. The first worm gear 311 is slidably connected to the rotating rod 3191 inside. The top and outer periphery of the rotating rod 3191 are rotatably connected to the limiting cylinder 319. The limiting cylinder 319 is fixedly connected to the bottom of the rotating platform 318. The outer periphery of the rotating rod 3191 is rotatably connected to the rotating cylinder 312. The rotating cylinder 312 is rotatably connected to the inner side of the fixed frame 315. The outer periphery of the rotating cylinder 312 is fixedly connected to the linkage frame 3195. The linkage plates 314 are fixedly connected to the left and right sides of the top of the linkage frame 3195. The linkage plates 314 are fixedly connected to the bottom of the rotating platform 318. The bottom of the linkage frame 3195 is fixedly connected to the sliding block 3194.

[0042] Furthermore, a circular groove corresponding to the movement trajectory of the sliding block 3194 is opened on the inner side of the fixing frame 315, and the sliding block 3194 is slidably connected to the inside of the circular groove. The circular groove makes the sliding block 3194 more stable during operation.

[0043] Furthermore, a limiting groove corresponding to the sliding trajectory of the first worm gear 311 is opened inside the rotating rod 3191 and the rotating cylinder 312, and the first worm gear 311 is slidingly connected inside the limiting groove, so that the first worm gear 311 can slide inside the rotating rod 3191 and the rotating cylinder 312, so that the first worm gear 311 can simultaneously drive the rotating rod 3191 and the rotating cylinder 312 to rotate.

[0044] Example 2

[0045] See Figure 1-11 , and on the basis of Example 1, the lifting assembly 32 is further obtained to include an arc-shaped plate 321, the arc-shaped plate 321 is fixedly connected to the inner side of the rotating frame 316, the outer periphery of the arc-shaped plate 321 is rotatably connected to the linkage gear 322, the outer periphery of the linkage gear 322 is meshed with a rotating gear 323, the interior of the rotating gear 323 is fixedly connected to a linkage rod 325, the bottom of the linkage rod 325 is rotatably connected to the support frame 324, the support frame 324 is fixedly connected to the bottom of the rotating table 318, the top of the linkage rod 325 is fixedly connected to the clamping plate 328, the inside of the clamping plate 328 is slidably connected to the insertion rod 329, the insertion rod 329 is inserted into the inner side of the rotating table 318, the top of the insertion rod 329 is fixedly connected to the pull plate 327, and the outer periphery of the pull plate 327 is sleeved with a spring 326.

[0046] Furthermore, the top of the spring 326 is fixedly connected to the bottom of the pull plate 327, and the bottom of the spring 326 is fixedly connected to the clamping plate 328. When the rotating table 318 does not squeeze the insertion rod 329, the spring 326 can drive the insertion rod 329 to be inserted into the rotating table 318 through the pull plate 327, thereby limiting the position of the clamping plate 328, so that the clamping plate 328 can clamp the arc-shaped fireplace parts more stably.

[0047] Furthermore, a sliding groove corresponding to the sliding track of the linkage gear 322 is opened inside the rotating rod 3191, and the linkage gear 322 is slidably connected to the inside of the sliding groove, so that the linkage gear 322 can slide on the periphery of the rotating rod 3191, so that the linkage gear 322 can be away from the rotating gear 323, so that when the linkage gear 322 rotates, it cannot drive the rotating gear 323 to rotate, so that the clamping plate 328 can clamp the fireplace parts more stably.

[0048] Example 3

[0049] See Figure 1-11 , and on the basis of Example 1, the welding mechanism 4 is further obtained to include a base plate 41, a connecting frame 46 is fixedly connected to the top of the base plate 41, a load-bearing plate 404 is fixedly connected to the back end of the connecting frame 46, a second motor 42 is fixedly connected to the top of the load-bearing plate 404, a second worm 43 is fixedly connected to the right side of the second motor 42, a second worm gear 403 is meshed with the front of the second worm 43, a rotating member 402 is fixedly connected to the bottom of the second worm gear 403, a threaded rod 405 is threadedly connected to the inside of the second worm gear 403, and the bottom of the threaded rod 405 is rotatably connected to the limit plate 401, the left and right sides of the top of the limit plate 401 are fixedly connected to the sliding bars 44, the sliding bars 44 are fixedly connected to the bottom of the lifting plate 45, the top of the threaded rod 405 is fixedly connected to the lifting plate 45, the front of the lifting plate 45 is fixedly connected to the moving plate 47, the front of the lifting plate 45 is fixedly connected to the second cylinder 48, and the back end of the second cylinder 48 is fixedly connected to the welder 49.

[0050] Furthermore, a circular groove corresponding to the movement trajectory of the rotating member 402 is opened inside the load-bearing plate 404, and the rotating member 402 is rotatably connected inside the arc groove. The opened arc groove makes the rotating member 402 more stable during the rotation process. The set rotating member 402 can support the second worm gear 403, making the second worm gear 403 more stable during the rotation process.

[0051] Example 4

[0052] See Figure 1-11 On the basis of Example 1, the limiting mechanism 2 is further obtained, which includes a load-bearing plate 21, which is fixedly connected to the bottom of the fixing frame 315, and the load-bearing plate 21 is fixedly connected to the top of the base 1. The bottom of the load-bearing plate 21 is fixedly connected to the third cylinder 26, and the left side of the third cylinder 26 is fixedly connected to the friction plate 24. A friction wheel 22 is provided on the left side of the friction plate 24, and a connecting rod 23 is fixedly connected to the inside of the friction wheel 22. The top of the connecting rod 23 is fixedly connected to the bottom of the rotating cylinder 312, and the bottom of the connecting rod 23 is fixedly connected to the bottom of the support plate 313. The bottom of the friction plate 24 is fixedly connected to the slider 25.

[0053] Furthermore, a sliding groove corresponding to the movement trajectory of the slider 25 is opened inside the load-bearing plate 21 and the base 1, and the slider 25 is slidably connected inside the sliding groove. Through the opened sliding groove, the slider 25 and the friction plate 24 are more stable during the movement.

[0054] In actual operation, when this device is used, when it is necessary to clamp the arc-shaped fireplace parts, the fireplace parts are placed on the top of the rotating table, and the linkage plate 314 is driven to move upward by the first cylinder 317, so that the linkage plate 314 drives the linkage gear 322 to rotate upward through the arc plate 321, so that the linkage gear 322 and the rotating gear 323 are engaged with each other, and the first motor 3193 drives the first worm 3192 to rotate, so that the first worm 3192 drives the linkage gear 322 to rotate through the rotating rod 3191, so that the linkage gear 322 drives the linkage rod 325 to rotate through the rotating gear 323, so that the linkage rod 325 drives The clamping plate 328 moves so that the clamping plate 328 can clamp the arc-shaped fireplace parts. When the clamping plate 328 moves, it can drive the insertion rod 329 to move. When the insertion rod 329 is squeezed by the rotating table 318, the insertion rod 329 can drive the spring 326 to move upward through the pull plate 327. When the rotating table 318 does not squeeze the insertion rod 329, the spring 326 can drive the insertion rod 329 to be inserted into the rotating table 318 through the pull plate 327, thereby limiting the position of the clamping plate 328. This makes the clamping plate 328 more stable in clamping the arc-shaped fireplace parts, making the device more stable when performing welding processing on the arc-shaped fireplace parts.

[0055] When the rotating table 318 needs to be rotated, the friction disk 24 is driven to move by the third cylinder 26 so that the friction disk 24 can fit the friction force. The rotating frame 316 is driven downward by the first cylinder 317, so that the rotating frame 316 drives the first worm gear 311 downward through the support plate 313 and the support member 3196, so that the first worm gear 311 slides to the periphery of the rotating cylinder 312. The first motor 3193 drives the first worm 3192 to rotate, so that the first worm 3192 drives the rotating cylinder 312 and the rotating rod 3191 to rotate through the first worm gear 311, so that the rotating cylinder 312 can drive the linkage plate 314 to rotate through the linkage frame 3195, and the linkage plate 314 drives the rotating table 318 to rotate, so that the arc-shaped fireplace component placed on the top of the rotating table 318 can be rotated, so that the device can weld the arc-shaped fireplace component at different positions.

[0056] When the arc-shaped fireplace parts need to be fixed and the height of the welder 49 needs to be adjusted, the second motor 42 drives the second worm 43 to rotate, so that the second worm 43 drives the threaded rod 405 to move downward through the second worm gear 403, and the threaded rod 405 drives the movable plate 47 to move downward through the lifting plate 45, so that the movable plate 47 can drive the welder 49 to move downward, so that the welder 49 can weld the arc-shaped fireplace parts. When the welding position of the welder 49 needs to be adjusted, the second cylinder 48 drives the welder 49 to move, so that the device can weld different positions of the arc-shaped fireplace parts.

[0057] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0058] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fireplace arc welding tool, comprising a base (1), characterized in that: A limiting mechanism (2) is provided in the middle of the top of the base (1), a rotating lifting mechanism (3) is provided on the top of the limiting mechanism (2), and a welding mechanism (4) is provided at the back end of the base (1); The rotating and lifting mechanism (3) comprises a rotating assembly (31) and a lifting assembly (32), wherein the rotating assembly (31) is arranged on the top of the limiting mechanism (2), and the lifting assembly (32) is arranged inside the rotating assembly (31); The rotating assembly (31) includes a fixed frame (315), the fixed frame (315) is fixedly connected to the top of the limiting mechanism (2), the fixed frame (315) is rotatably connected to a rotating platform (318) on the inside, the rotating platform (318) is fixedly connected to a first cylinder (317) on the bottom, the first cylinder (317) is fixedly connected to a rotating frame (316) on the bottom, the rotating frame (316) is fixedly connected to a supporting plate (313) on the bottom, the supporting plate (313) is fixedly connected to a supporting member (3196) on the top, the supporting member (3196) is rotatably connected to a first worm gear (311) on the periphery, the first worm gear (311) is meshed with a first worm (3192) on the right side, the first worm gear (3192) is fixedly connected to a first motor (3193) on the front side, the first motor ( 3193) is fixedly connected to the top of the support plate (313), the first worm gear (311) is slidably connected to a rotating rod (3191) inside, the top of the rotating rod (3191) is rotatably connected to a limiting cylinder (319), the limiting cylinder (319) is fixedly connected to the bottom of the rotating platform (318), the rotating rod (3191) is rotatably connected to a rotating cylinder (312) outside, the rotating cylinder (312) is rotatably connected to the inner side of the fixed frame (315), the bottom of the outer periphery of the rotating cylinder (312) is fixedly connected to a linkage frame (3195), the top left and right sides of the linkage frame (3195) are fixedly connected to linkage plates (314), the linkage plates (314) are fixedly connected to the bottom of the rotating platform (318), and the bottom of the linkage frame (3195) is fixedly connected to a sliding block (3194).

2. The arc-shaped fireplace welding tool according to claim 1, characterized in that: A circular groove corresponding to the movement track of the sliding block (3194) is opened on the inner side of the fixing frame (315), and the sliding block (3194) is slidably connected to the inside of the circular groove.

3. The arc-shaped fireplace welding tool according to claim 2, characterized in that: The rotating rod (3191) and the rotating cylinder (312) are provided with a limiting groove corresponding to the sliding track of the first worm gear (311), and the first worm gear (311) is slidably connected to the inside of the limiting groove.

4. The arc-shaped fireplace welding tool according to claim 3, characterized in that: The lifting assembly (32) includes an arc-shaped plate (321), the arc-shaped plate (321) is fixedly connected to the inner side of the rotating frame (316), the outer periphery of the arc-shaped plate (321) is rotatably connected to a linkage gear (322), the outer periphery of the linkage gear (322) is meshed with a rotating gear (323), the interior of the rotating gear (323) is fixedly connected to a linkage rod (325), the bottom of the linkage rod (325) is rotatably connected to a support frame (324), the support frame (324) is fixedly connected to the bottom of the rotating platform (318), the top of the linkage rod (325) is fixedly connected to a clamping plate (328), the interior of the clamping plate (328) is slidably connected to an insertion rod (329), the insertion rod (329) is inserted into the inner side of the rotating platform (318), the top of the insertion rod (329) is fixedly connected to a pull plate (327), and the outer periphery of the pull plate (327) is sleeved with a spring (326).

5. The arc-shaped fireplace welding tool according to claim 4, characterized in that: The top of the spring (326) is fixedly connected to the bottom of the pull plate (327), and the bottom of the spring (326) is fixedly connected to the clamping plate (328).

6. The arc-shaped fireplace welding tool according to claim 5, characterized in that: A sliding groove corresponding to the sliding track of the linkage gear (322) is provided inside the rotating rod (3191), and the linkage gear (322) is slidably connected inside the sliding groove.

7. The arc-shaped fireplace welding tool according to claim 6, characterized in that: The welding mechanism (4) comprises a base plate (41), the top of the base plate (41) is fixedly connected to a connecting frame (46), the back end of the connecting frame (46) is fixedly connected to a bearing plate (404), the top of the bearing plate (404) is fixedly connected to a second motor (42), the right side of the second motor (42) is fixedly connected to a second worm (43), the front side of the second worm (43) is meshed with a second worm wheel (403), the bottom of the second worm wheel (403) is fixedly connected to a rotating member (402), and the internal thread of the second worm wheel (403) is connected to the rotating member (402). A threaded rod (405) is connected, the bottom of the threaded rod (405) is rotatably connected to a limit plate (401), the left and right sides of the top of the limit plate (401) are fixedly connected to slide bars (44), the slide bars (44) are fixedly connected to the bottom of the lifting plate (45), the top of the threaded rod (405) is fixedly connected to the lifting plate (45), the front of the lifting plate (45) is fixedly connected to a moving plate (47), the front of the lifting plate (45) is fixedly connected to a second cylinder (48), and the back end of the second cylinder (48) is fixedly connected to a welder (49).

8. The arc-shaped fireplace welding tool according to claim 7, characterized in that: An arcuate groove corresponding to the motion track of the rotating member (402) is provided inside the load-bearing plate (404), and the rotating member (402) is rotatably connected to the inside of the arcuate groove.

9. The arc-shaped fireplace welding tool according to claim 8, characterized in that: The limiting mechanism (2) comprises a load-bearing plate (21), the load-bearing plate (21) being fixedly connected to the bottom of the fixing frame (315), the load-bearing plate (21) being fixedly connected to the top of the base (1), the inner bottom of the load-bearing plate (21) being fixedly connected to a third cylinder (26), the left side of the third cylinder (26) being fixedly connected to a friction plate (24), the left side of the friction plate (24) being provided with a friction wheel (22), the inner part of the friction wheel (22) being fixedly connected to a connecting rod (23), the top of the connecting rod (23) being fixedly connected to the bottom of the rotating cylinder (312), the bottom of the connecting rod (23) being fixedly connected to the inner bottom of the supporting plate (313), and the bottom of the friction plate (24) being fixedly connected to a slider (25).

10. The arc-shaped fireplace welding tool according to claim 9, characterized in that: The load-bearing plate (21) and the base (1) are provided with a sliding groove corresponding to the movement track of the slider (25), and the slider (25) is slidably connected to the inside of the sliding groove.

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