Rotary type fixing structure for welding process and using method of rotary type fixing structure

Abstract

The invention discloses a rotary fixing structure for a welding process and a using method thereof, and relates to the technical field of welding rotary workbenches, the rotary fixing structure comprises a bearing frame, a rotary table, a connecting ring and a limiting piece, a supporting table is arranged at the top of the bearing frame and used for welding at different angles, and the rotary table is arranged at the top of the supporting table; the rotary table is used for installing and fixing the welding clamp and used for rotary welding of a welding product, the connecting ring is installed on the top of the supporting table, the multiple limiting pieces are installed at the bottom of the rotary table, and the limiting pieces and the side of the connecting ring are clamped and limited in a matched mode. Through the arrangement mode that the rotating table, the connecting ring and the limiting piece are matched, the circular seam welding device is suitable for long-time continuous circular seam welding, through clamping disassembly and assembly of the limiting piece and the connecting ring, an operator can easily and manually rotate a workpiece when power is off and fine positioning operation is needed, the flexibility is high, and the convenience of welding operation of a welded product is improved.

Description

Technical Field

[0001] This invention relates to the field of welding rotary worktable technology, and in particular to a rotary fixed structure for welding processes and its method of use. Background Technology

[0002] In the field of metal welding processing, welding is an indispensable connection process in modern manufacturing. Its quality and efficiency are directly related to the structural strength, service life and production cost of products. In various welding operations, especially for circumferential welding and multi-angle welding of pipes, flanges, ring components or complex three-dimensional workpieces, it is often required that the workpiece can rotate stably and controllably along a specific axis so that the weld is always in the most suitable position for welding.

[0003] Some existing adjustable angle fixtures can adjust the tilt angle, but the rotary table is driven by an electric component, which means that the rotary table can only rotate continuously. The rotary table and the drive base are mostly rigidly fixed, which is inconvenient to disassemble. Moreover, the rotary table cannot be manually controlled to rotate independently. In the welding process, it is often necessary to spot weld the workpiece at different angles according to the structure of the workpiece. The continuous rotation of the rotary table cannot be quickly switched to manual fine adjustment mode or independent maintenance, which affects the welding operation at different rotation angles of the workpiece and affects the convenience of welding angle adjustment. Summary of the Invention

[0004] The purpose of this invention is to provide a rotary fixing structure for welding processes and a method of using it, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotary fixing structure for welding processes, comprising: A support frame, the top of which is provided with a support platform for welding at different angles; A rotating table is disposed on top of a support platform. The rotating table is used for installing and fixing welding fixtures and for rotating and welding welded products. A connecting ring, which is mounted on the top of the support platform; A plurality of limiting components are installed at the bottom of the rotary table. The limiting components engage with the side of the connecting ring to limit movement. The detachment and reassembly of the limiting components and the connecting ring are used for the independent rotation of the rotary table and the support platform.

[0006] Preferably, the support platform includes: An adjusting plate is disposed in the middle of the support frame; A rotating assembly is installed between the adjusting plate and the inner wall of the support frame. The rotating assembly is used to adjust the angle of the adjusting plate. The rotating assembly includes a rotating shaft, a half worm gear, and a worm. Multiple rotating shafts are respectively fixed on both sides of the adjusting plate. One end of each rotating shaft is rotatably connected to the top of an adjacent support frame through a bearing. The half worm gear is fixed to the bottom of one of the rotating shafts. The outer wall of the worm is meshed with the bottom of the half worm gear. Both ends of the worm are installed on one side of the inner wall of the support frame through bearing seats. Mounting ring, which is fixed to the top of the adjustment plate; A mating ring is disposed on the top and outer wall of the mounting ring.

[0007] Preferably, the mating ring comprises: A bearing ring, the bottom of which is rotatably connected to the outer wall of the mounting ring via a bearing; An annular groove is formed at the top of the bearing ring; A toothed ring, which is fixed to the bottom of the outer wall of the bearing ring; A gear, wherein the gear is disposed on one side of the bearing ring and is meshed with the outer wall of the gear ring; A shaft motor is fixed to the bottom of an adjustment plate by a bracket, and the output shaft of the shaft motor is fixedly inserted and connected to the middle of a gear.

[0008] Preferably, the rotary table includes: A fixed platform is positioned above the bearing ring; A positioning ring is fixed to the bottom of the outer wall of the fixed platform and is used for the connection and engagement of the limiting component. A rotating assembly is mounted on the bottom of a fixed platform and slides within the inner cavity of an annular groove. The rotating assembly includes a rotating ring and multiple balls. The rotating ring is fixed to the bottom of the fixed platform, and the multiple balls are arranged in a circular array and rolled within the bottom of the rotating ring.

[0009] Preferably, the positioning ring includes: The first ring body is fixed to the outer wall of the fixed platform; Positioning grooves, a plurality of the positioning grooves are formed on the outer wall of the first ring body, and the limiting member is rotatably installed in the inner cavity of the positioning groove; The first positioning hole, and multiple first positioning holes are formed on the top of the first ring body.

[0010] Preferably, the connecting ring includes: The second ring body is fixed to the outer wall of the bearing ring; The slots, a plurality of which are formed on the top of the second ring, are used for the mating connection of the limiting member.

[0011] Preferably, the limiting member includes: A locking component, which is rotatably engaged with the inner cavity of the positioning groove; A limiting component is installed at the bottom of the card and is inserted into the inner cavity of the adjacent first positioning hole and card slot.

[0012] Preferably, the card includes: A locking block, which rotates within the cavity of the positioning groove; A pin is fixedly inserted into the top of the block, and the pin is rotatably inserted into the inner wall of the adjacent positioning groove. The limiting component is installed at the bottom of the block. The second positioning hole is located at the bottom of the block.

[0013] Preferably, the limiting component includes: A limiting pin, which slides within the cavity of the second positioning hole; An I-shaped block is rotatably engaged with the top of a limiting pin, and the I-shaped block is used to engage with the top of the first ring body. A tension spring, which is fixed to the bottom of the locking block; A pull rod is sleeved inside the cavity of a tension spring. The top of the pull rod is fixedly connected to the bottom of a limiting pin, and the bottom of the tension spring is fixedly connected to the bottom of the pull rod.

[0014] A method for using a rotary fixing structure in a welding process includes the following specific steps: Step 1: When using a rotary table, rotate the worm gear to make the half-worm wheel rotate, which facilitates the adjustment plate to rotate and adjust the angle, making it suitable for use in different welding scenarios. Step 2: By engaging the card block with the second ring body and limiting the positioning pin with the positioning groove and the inner cavity of the card groove, the fixed platform can rotate synchronously with the bearing ring, driving the shaft motor, the gear can drive the gear ring to rotate, so that the bearing ring can rotate stably on the top of the adjustment plate, so that the welding parts fixed on the fixed platform can follow the fixed platform to perform rotation welding operation. Step 3: When it is not necessary to continuously rotate the fixed platform and the rotation of the fixed platform needs to be manually controlled, pull the lever so that its limit pin and I-shaped block can slide out of the inner cavity of the positioning groove and the slot respectively. Move the locking block so that it does not lock the second ring body, and the end of the I-shaped block abuts against the outer wall of the second ring body. By rotating the ring and intersecting the inner cavity of the annular groove, the fixed platform can be rotated manually to achieve independent rotation of the fixed platform, so that the welding parts can be adjusted and welded within a small range.

[0015] The technical effects and advantages of this invention are as follows: This invention utilizes a combination of a rotating table, a connecting ring, and a limiting component. The matching ring on the support platform enables continuous electric rotation of the worktable, making it suitable for long-term continuous circumferential welding. The locking and unlocking mechanism between the limiting component and the connecting ring allows the rotating table to rotate within an annular groove via ball bearings. This facilitates easy manual rotation of the workpiece by the operator during power outages or when precise positioning is required, enhancing flexibility and improving the convenience of welding operations. This invention achieves stepless adjustment of the tilt angle of the adjustment plate through the arrangement of the bearing frame and support platform and the meshing transmission of the worm and the semi-worm wheel. It also utilizes the inherent self-locking characteristics of the meshing pair to ensure that the angle is absolutely locked during the welding process after adjustment, eliminating the risk of slippage and improving welding accuracy and operational safety. This invention utilizes a connection method between a limiting component and a connecting ring. The locking component automatically engages with the connecting ring using gravity, preventing the rotary table from accidentally slipping off. The insertion, locking, and release of the limiting pin can be achieved through simple pulling and rotating operations, allowing the rotary table and the bearing ring to quickly separate or connect. This facilitates rapid electric and manual adjustment of the rotary table, improving welding efficiency and operational stability. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic side sectional view of the overall structure of the present invention. Figure 1 ; Figure 3 This is a schematic side sectional view of the overall structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the overall front cross-sectional structure of the present invention; Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the overall structure of the fixing ring of the present invention; Figure 7 This is a side sectional view of the I-shaped block structure of the present invention; In the attached diagram: 100, bearing frame; 200, support platform; 201, adjusting plate; 202, rotating assembly; 221, rotating shaft; 222, half worm gear; 223, worm; 203, mounting ring; 204, mating ring; 241, bearing ring; 242, annular groove; 243, gear ring; 244, gear; 245, motor with shaft; 300, rotating table; 301, fixed platform; 302, positioning ring; 321, first ring. 322. Positioning groove; 323. First positioning hole; 303. Rotating assembly; 331. Rotating ring; 332. Ball bearing; 400. Connecting ring; 401. Second ring body; 402. Slot; 500. Limiting component; 501. Clip; 511. Clip block; 512. Pin; 513. Second positioning hole; 502. Limiting assembly; 521. Limiting pin; 522. I-shaped block; 523. Tension spring; 524. Pull rod. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This invention provides, for example Figures 1-7 The diagram shows a rotary fixed structure for welding processes.

[0019] Example 1: Includes a support frame 100, a rotary table 300, a connecting ring 400, and limiting members 500. A support platform 200 is provided on the top of the support frame 100. The support frame 100 consists of two inverted T-shaped structures fixed by two round rods. The support platform 200 is arranged horizontally or obliquely on the top of the support frame 100 and is used for welding at different angles. The rotary table 300 is located on the top of the support platform 200 and is used for installing and fixing welding fixtures and for rotating welding of welded products. The connecting ring 400 is installed on the top of the support platform 200. Multiple limiting members 500 are installed on the bottom of the rotary table 300. The limiting members 500 and the sides of the connecting ring 400 engage and limit each other. The detachment and reassembly of the limiting members 500 and the connecting ring 400 are used for the independent rotation of the rotary table 300 and the support platform 200.

[0020] The support platform 200 includes an adjusting plate 201, a rotating assembly 202, a mounting ring 203, and a mating ring 204. The adjusting plate 201 is located in the middle of the support frame 100. The rotating assembly 202 is installed between the adjusting plate 201 and the inner wall of the support frame 100. The rotating assembly 202 is used to adjust the angle of the adjusting plate 201. The rotating assembly 202 includes a rotating shaft 221, a half-worm gear 222, and a worm 223. Multiple rotating shafts 221 are respectively fixed on both sides of the adjusting plate 201. One end of the rotating shaft 221 is rotatably connected to the top of the adjacent support frame 100 through a bearing, so that the adjusting plate 201 can rotate at an angle in the middle of the support frame 100. The half-worm gear 222 is fixed to the bottom of one of the rotating shafts 221. The half-worm gear 222 has a half-turbine structure and can rotate about the axis of the rotating shaft 221. The outer wall of the worm 223 is connected to the half-worm gear 222. The bottom of the worm gear 222 is engaged, and a turntable is installed at one end of the worm 223, which allows for manual rotation of the turntable to rotate the worm 223, enabling the worm 223 to rotate and adjust the meshing half-worm gear 222. This facilitates convenient angle adjustment of the adjusting plate 201. The meshing between the worm 223 and the half-worm gear 222 has a self-locking function to prevent the adjusting plate 201 from rotating arbitrarily. Both ends of the worm 223 are mounted on one side of the inner wall of the support frame 100 via bearing seats, and the bearing seats are fixed to one side of the inner wall of the support frame 100, ensuring that the worm 223 is stable at the bottom of the half-worm gear 222. The mounting ring 203 is fixed to the top of the adjusting plate 201, and the mating ring 204 is set on the top and outer wall of the mounting ring 203. The mating ring 204 can be rotated on the top of the mounting ring 203, facilitating the rotation of the top rotating table 300.

[0021] Specifically, the mating ring 204 includes a bearing ring 241, an annular groove 242, a toothed ring 243, a gear 244, and a shaft motor 245. The bottom of the bearing ring 241 is rotatably connected to the outer wall of the mounting ring 203 via a bearing. The annular groove 242 is formed at the top of the bearing ring 241. The toothed ring 243 is fixed to the bottom of the outer wall of the bearing ring 241. The gear 244 is located on one side of the bearing ring 241 and meshes with the outer wall of the toothed ring 243. The shaft motor 245 is fixed to the bottom of the adjusting plate 201 via a bracket. The output shaft of the shaft motor 245 is fixedly inserted into the middle of the gear 244, and the output shaft of the shaft motor 245 is rotatably inserted into one side of the adjusting plate 201 via a bearing. The shaft motor 245 is electrically connected to an external power supply via an external controller. Driven by the shaft motor 245, the gear 244 can drive the toothed ring 243 to perform a stable and continuous rotation, facilitating continuous rotational welding operations on the rotary table 300.

[0022] In addition, the rotary table 300 includes a fixed table 301, a positioning ring 302, and a rotating assembly 303. The fixed table 301 is disposed above the bearing ring 241 and is used for the mating connection of the welding fixture. The positioning ring 302 is fixed to the bottom of the outer wall of the fixed table 301 and is used for the connection and mating of the limiting member 500. The rotating assembly 303 is installed at the bottom of the fixed table 301 and slides in the inner cavity of the annular groove 242. The rotating assembly 303 includes a rotating ring 331 and a plurality of balls 332. The rotating ring 331 is fixed to the bottom of the fixed table 301, and the plurality of balls 332 are arranged in a ring array and rolled and embedded in the bottom of the rotating ring 331. The balls 332 roll in the inner cavity of the annular groove 242. The arrangement of the balls 332 facilitates the smooth rotation of the fixed table 301 on the top of the bearing ring 241, making it convenient to manually rotate the fixed table 301.

[0023] The positioning ring 302 includes a first ring body 321, a positioning groove 322 and a first positioning hole 323. The first ring body 321 is fixed to the outer wall of the fixed platform 301. Multiple positioning grooves 322 are formed on the outer wall of the first ring body 321. The limiting member 500 is rotatably installed in the inner cavity of the positioning groove 322. Multiple first positioning holes 323 are formed on the top of the first ring body 321.

[0024] Furthermore, the connecting ring 400 includes a second ring body 401 and a slot 402. The second ring body 401 is fixed to the outer wall of the bearing ring 241, and a plurality of slots 402 are formed on the top of the second ring body 401. The slots 402 are used for the mating connection of the limiting member 500.

[0025] Furthermore, the limiting member 500 includes a locking member 501, which is rotatably engaged in the inner cavity of the positioning groove 322. The locking member 501 includes a locking block 511, a pin 512, and a second positioning hole 513. The locking block 511 rotates in the inner cavity of the positioning groove 322. The pin 512 is fixedly inserted into the top of the locking block 511 and is rotatably connected to the inner wall of the adjacent positioning groove 322. The second positioning hole 513 is opened at the bottom of the locking block 511. Due to the influence of the gravity of the locking block 511, the locking block 511 can rotate in the inner cavity of the positioning groove 322 and be engaged in motion with the outer wall of the second ring 401. This can reduce the phenomenon of the fixed platform 301 slipping off the top of the bearing ring 241 and facilitate the independent rotation operation of the fixed platform 301 between the bearing ring 241.

[0026] Example 2: Based on Example 1, the limiting member 500 further includes a limiting component 502. The limiting component 502 is installed at the bottom of the clamping member 501. The limiting component 502 is inserted and connected to the inner cavity of the adjacent first positioning hole 323 and the slot 402. The limiting component 502 is installed at the bottom of the clamping block 511. The limiting component 502 includes a limiting pin 521, an I-shaped block 522, a tension spring 523, and a pull rod 524. The limiting pin 521 slides in the inner cavity of the second positioning hole 513, and the I-shaped block 522 is rotatably engaged with the limiting pin. At the top of 521, the I-shaped block 522 is used to engage with the top of the first ring body 321. The bottom of the I-shaped block 522 consists of two cylinders of different diameters, and the top of the I-shaped block 522 consists of a rectangular block. The rectangular block is connected and fixed to the two cylinders of different diameters, so that the bottom of the I-shaped block 522 will not detach from the top of the limiting pin 521, and the top of the I-shaped block 522 can rotate and engage with the top of the first ring body 321, so that the limiting pin 521 will not arbitrarily slip or penetrate the inner cavity of the positioning groove 322 and the slot 402. The tension spring 523 is fixed to the bottom of the locking block 511, and the pull rod 524 is sleeved in the inner cavity of the tension spring 523. The top of the pull rod 524 is fixedly connected to the bottom of the limiting pin 521, and the bottom of the tension spring 523 is fixedly connected to the bottom of the pull rod 524. When the I-shaped block 522 is rotated so that its length and width match the top of the limiting pin 521, the elasticity of the tension spring 523 pulls the pull rod 524, allowing the limiting pin 521 to slide out of the inner cavity of the positioning groove 322 and the locking groove 402 with the I-shaped block 522, thus facilitating the positioning ring 302. When the connecting ring 400 is disassembled and assembled, and the limiting pin 521 is opposite to the inner cavity of the slot 402 and the positioning groove 322, the pull of the pull rod 524 is released. Through the elastic recovery of the tension spring 523, the limiting pin 521 can be inserted into the inner cavity of the slot 402 and the positioning groove 322. And through the rotation of the I-shaped block 522, the I-shaped block 522 can be horizontally supported on the upper surface of the first ring body 321, so that the bearing ring 241 can drive the fixed table 301 to rotate stably, thereby improving the stability of the fixed table 301 in the welding process.

[0027] A method for using a rotary fixing structure in a welding process includes the following specific steps: Step 1: When using the rotary table 300, the rotation of the worm gear 223 causes the half-worm wheel 222 to rotate, which facilitates the adjustment plate 201 to rotate and adjust the angle, so that the rotary table 300 can be used in different welding scenarios. Step 2: By engaging the locking block 511 with the second ring body 401 and limiting the positioning pin 521 with the positioning groove 322 and the inner cavity of the slot 402, the fixed platform 301 can rotate synchronously with the bearing ring 241, driving the shaft motor 245, and the gear 244 can drive the gear ring 243 to rotate, so that the bearing ring 241 can rotate stably on the top of the adjustment plate 201, and the welding parts fixed on the fixed platform 301 can follow the fixed platform 301 to perform rotational welding operations; Step 3: When it is not necessary to continuously rotate the fixed platform 301 and the rotation of the fixed platform 301 needs to be manually controlled, pull the pull rod 524 so that the limit pin 521 and the I-shaped block 522 can slide out of the inner cavity of the positioning groove 322 and the slot 402 respectively. Move the locking block 511 so that the locking block 511 does not lock the second ring body 401, and the end of the I-shaped block 522 abuts against the outer wall of the second ring body 401. By rotating the ring 331 and intersecting the inner cavity of the annular groove 242, the fixed platform 301 can be rotated independently by manually rotating it, so that the welding parts can be adjusted and welded within a small range.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary fixing structure for welding processes, characterized in that, include: A support frame (100) is provided with a support platform (200) on its top, and the support platform (200) is used for welding at different angles; A rotating table (300) is disposed on the top of a support platform (200). The rotating table (300) is used for the installation and fixing of welding fixtures and for the rotational welding of welded products. A connecting ring (400) is mounted on the top of the support platform (200); A limiting member (500) is installed at the bottom of the rotary table (300). The limiting member (500) engages with the side of the connecting ring (400) for limiting. The detachment and reassembly of the limiting member (500) and the connecting ring (400) are used for the individual rotation of the rotary table (300) and the support table (200).

2. The rotary fixing structure for welding process according to claim 1, characterized in that, The support platform (200) includes: An adjustment plate (201) is disposed in the middle of the support frame (100); A rotating assembly (202) is installed between the adjusting plate (201) and the inner wall of the support frame (100). The rotating assembly (202) is used to adjust the angle of the adjusting plate (201). The rotating assembly (202) includes a rotating shaft (221), a half worm gear (222), and a worm (223). Multiple rotating shafts (221) are fixed on both sides of the adjusting plate (201). One end of the rotating shaft (221) is rotatably connected to the top of the adjacent support frame (100) through a bearing. The half worm gear (222) is fixed to the bottom of one of the rotating shafts (221). The outer wall of the worm (223) is meshed with the bottom of the half worm gear (222). Both ends of the worm (223) are installed on one side of the inner wall of the support frame (100) through bearing seats. Mounting ring (203), which is fixed to the top of the adjusting plate (201); A mating ring (204) is disposed on the top and outer wall of the mounting ring (203).

3. The rotary fixing structure for welding process according to claim 2, characterized in that, The mating ring (204) includes: The bottom of the bearing ring (241) is rotatably connected to the outer wall of the mounting ring (203) via a bearing; An annular groove (242) is formed at the top of the bearing ring (241); A toothed ring (243) is fixed to the bottom of the outer wall of the bearing ring (241); Gear (244), the gear (244) is disposed on one side of the bearing ring (241), and the gear (244) meshes with the outer wall of the gear ring (243); A shaft motor (245) is fixed to the bottom of an adjustment plate (201) by a bracket, and the output shaft of the shaft motor (245) is fixedly inserted and connected to the middle of a gear (244).

4. The rotary fixing structure for welding process according to claim 3, characterized in that, The rotary table (300) includes: A fixed platform (301) is disposed above the bearing ring (241); Positioning ring (302), the positioning ring (302) is fixed to the bottom of the outer wall of the fixed platform (301), the positioning ring (302) is used for connection and cooperation with the limiting member (500); A rotating assembly (303) is mounted on the bottom of a fixed platform (301). The rotating assembly (303) slides in the inner cavity of an annular groove (242). The rotating assembly (303) includes a rotating ring (331) and a plurality of balls (332). The rotating ring (331) is fixed to the bottom of the fixed platform (301). The plurality of balls (332) are arranged in an annular array and rolled in the bottom of the rotating ring (331). The balls (332) roll in the inner cavity of the annular groove (242).

5. The rotary fixing structure for welding process according to claim 4, characterized in that, The positioning ring (302) includes: The first ring body (321) is fixed to the outer wall of the fixed platform (301); Positioning groove (322), a plurality of the positioning grooves (322) are formed on the outer wall of the first ring body (321), and the limiting member (500) is rotatably installed in the inner cavity of the positioning groove (322); First positioning hole (323), a plurality of first positioning holes (323) are formed on the top of the first ring body (321).

6. The rotary fixing structure for welding process according to claim 1, characterized in that, The connecting ring (400) includes: The second ring body (401) is fixed to the outer wall of the bearing ring (241); Slots (402), a plurality of slots (402) are provided on the top of the second ring body (401), the slots (402) are used for the mating connection of the limiting member (500).

7. The rotary fixing structure for welding process according to claim 6, characterized in that, The limiting member (500) includes: A locking element (501) is rotatably engaged with the inner cavity of a positioning groove (322); A limiting component (502) is installed at the bottom of the card (501) and is inserted into the inner cavity of the adjacent first positioning hole (323) and card slot (402).

8. The rotary fixing structure for welding process according to claim 7, characterized in that, The card (501) includes: A locking block (511) rotates within the cavity of a positioning groove (322); A pin (512) is fixedly inserted into the top of the locking block (511), and the pin (512) is rotatably inserted into the inner wall of the adjacent positioning groove (322). The limiting component (502) is installed at the bottom of the locking block (511). The second positioning hole (513) is located at the bottom of the card block (511).

9. The rotary fixing structure for welding process according to claim 8, characterized in that, The limiting component (502) includes: A limiting pin (521) slides within the cavity of the second positioning hole (513); I-shaped block (522), which is rotatably engaged with the top of the limiting pin (521), and is used to engage with the top of the first ring body (321); A tension spring (523) is fixed to the bottom of the locking block (511); A pull rod (524) is sleeved in the inner cavity of a tension spring (523). The top of the pull rod (524) is fixedly connected to the bottom of a limiting pin (521), and the bottom of the tension spring (523) is fixedly connected to the bottom of the pull rod (524).

10. A method of using a rotary fixing structure for welding processes according to any one of claims 5-9, characterized in that, The specific steps include the following: Step 1: When using the rotary table (300), the worm gear (222) is rotated according to the rotation of the worm (223), which makes it easier to drive the adjustment plate (201) to rotate and adjust the angle, so that it can be used in different welding scenarios. Step 2: By engaging the locking block (511) with the second ring body (401) and the limiting pin (521) intersecting and limiting the positioning groove (322) and the inner cavity of the slot (402), the fixed platform (301) can rotate synchronously with the bearing ring (241), driving the shaft motor (245), and the gear (244) can drive the gear ring (243) to rotate, so that the bearing ring (241) can rotate stably on the top of the adjusting plate (201), so that the welded parts fixed on the fixed platform (301) can follow the fixed platform (301) to perform rotational welding operations; Step 3: When it is not necessary to continuously rotate the fixed platform (301) and the rotation of the fixed platform (301) needs to be manually controlled, pull the lever (524) so ​​that the limit pin (521) and the I-shaped block (522) can slide out of the inner cavity of the positioning groove (322) and the slot (402) respectively. Move the locking block (511) so that the locking block (511) does not lock the second ring body (401), and the end of the I-shaped block (522) abuts against the outer wall of the second ring body (401). By rotating the ring (331) and intersecting the inner cavity of the annular groove (242), the fixed platform (301) can be rotated independently by manually rotating the fixed platform (301), so that it can be used to adjust the position of the welded parts within a small range.

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