A ring welding machine and its usage method

Abstract

This invention relates to the field of welding machine technology, specifically disclosing a ring welding machine, comprising: a welding table, a welding fume collection mechanism, a hydraulic rod, a welding machine body, an adjusting rod, a rotating seat, a workpiece rotation mechanism, and a workpiece limiting mechanism; the welding table is fixedly equipped with the welding fume collection mechanism; the hydraulic rod is fixedly mounted on the welding fume collection mechanism, and the welding machine body is fixedly mounted on the hydraulic rod; one end of the adjusting rod is fixedly equipped with a rotating seat; a movable rod is slidably mounted on the adjusting rod; one end of the movable rod is fixedly equipped with a rotating seat; two workpiece rotation mechanisms are rotatably mounted on the rotating seat; and multiple workpiece limiting mechanisms are fixedly mounted on each workpiece rotation mechanism. This invention uses workpiece limiting mechanisms to limit and fix workpieces of different shapes, replacing manual hand-held fixing, thereby achieving a rapid welding effect.

Description

Technical Field

[0001] This application relates to the field of welding machine technology, and more specifically, to a ring welding machine and its method of use. Background Technology

[0002] Welding is the process of joining metal parts using various fusible alloys (solder). Solder has a lower melting point than the material being welded, so the welding is completed through intermolecular connections on the surface of the parts without melting them.

[0003] The prior art publication CN107717226A provides a high-efficiency annular multi-beam laser welding machine. This device enables a hydraulic telescopic rod to move back and forth on a load-bearing plate through a first slider and a first slide groove. At the same time, a strip plate can be rotated 360 degrees on the hydraulic telescopic rod through a first bearing. The combined use of the above two methods can effectively improve welding efficiency, welding quality, and product qualification rate.

[0004] Although the existing technical solutions described above can achieve the relevant beneficial effects through the existing technical structure, they still have the following defects: When the welding machine is in use, because the device is not convenient for limiting and fixing the workpiece, it needs to be manually held during use, which is time-consuming and laborious, and affects the welding efficiency.

[0005] In view of this, we propose a ring welding machine. Summary of the Invention

[0006] 1. Technical problems to be solved

[0007] The purpose of this application is to provide a ring welding machine that solves the technical problems mentioned in the background art, realizes the limiting and fixing of the weldment, replaces manual hand-held operation, and thus improves the welding efficiency.

[0008] 2. Technical Solution

[0009] This application provides a ring welding machine, including: a welding table, a welding fume collection mechanism, a hydraulic rod, a welding machine body, an adjusting rod, a rotating seat, a workpiece rotation mechanism, and a workpiece limiting mechanism. The welding fume collection mechanism is fixedly installed on the welding table.

[0010] The hydraulic rod is fixedly mounted on the welding fume collection mechanism, and the welding machine body is fixedly mounted on the movable rod of the hydraulic rod;

[0011] The welding table is equipped with a rotatable adjustment rod;

[0012] A rotating seat is fixedly mounted on one end of the adjusting rod; a movable rod is slidably mounted on the adjusting rod; and a rotating seat is fixedly mounted on one end of the movable rod.

[0013] Two workpiece rotation mechanisms are rotatably mounted on the rotating base; the workpiece rotation mechanisms can drive the workpiece to rotate for circumferential welding;

[0014] Multiple welding workpiece limiting mechanisms are fixedly installed on the welding workpiece rotation mechanism. These welding workpiece limiting mechanisms can limit and fix welding workpieces of different shapes.

[0015] As an optional embodiment of the technical solution in this application, the welding fume collection mechanism includes a collection base, an air inlet hood, fan blades, and a drive mechanism. The collection base is fixedly installed on the welding table. The air inlet hood is fixedly installed on the air inlet end of the collection base via a flexible hose. The air inlet hood is fixedly installed on one side of the welding machine body. Fan blades are rotatably installed inside the collection base, and activated carbon is placed on the inner wall of the air outlet end of the collection base. A drive mechanism is installed inside the welding table, and the fan blades are rotatably mounted on the drive mechanism, which drives the fan blades to rotate.

[0016] By adopting the above technical solution, the starting motor A drives the connected fan blades to rotate, and the fumes generated during welding are drawn into the collection seat for purification through the air intake hood.

[0017] As an optional solution to the technical solution of this application, the driving mechanism includes a motor A, a driving wheel and a driven wheel. The motor A is located inside the welding table. The output end of the motor A is fixedly set with the fan blade. The driving wheel is fixedly set at the output end of the motor A. The driven wheel is meshed with one side of the driving wheel. An electric push rod is fixedly set on one side of the driven wheel. The other end of the electric push rod passes through and is rotatably set with the welding table.

[0018] By adopting the above technical solution, the electric actuator is activated to drive the connected drive wheel to move, so that the drive wheel meshes with the ring rack.

[0019] As an optional solution to the technical solution of this application, an adjusting sleeve is rotatably provided on the outer wall of the other end of the adjusting rod, and a movable rod is threadedly connected to the inner wall of the adjusting sleeve, with the outer wall of the movable rod and the inner wall of the adjusting rod being slidably fitted together.

[0020] As an optional embodiment of the technical solution in this application, the rotating seat on the adjusting rod is rotatably mounted to the welding table. A sleeve is fixedly mounted at the end of the rotating seat on the movable rod, and a rotating sleeve is slidably mounted on the outer wall of the sleeve. The rotating sleeve is rotatably mounted to the welding table, and a worm gear is fixedly mounted on the outer wall of the rotating sleeve. A worm is rotatably mounted through one side of the outer wall of the welding table, and the worm meshes with the worm gear for transmission. A motor C is mounted below the worm, and the shaft of the motor C is coaxially and fixedly connected to the worm.

[0021] By adopting the above technical solution, rotating the worm can drive the rotating sleeve connected to the worm wheel to rotate, thereby driving the two rotating seats to rotate.

[0022] As an optional solution to the technical solution of this application, the welding component rotation mechanism includes a rotating seat and an annular rack. The rotating seat is rotatably arranged with the rotating seat, wherein annular racks are fixedly arranged on the outer wall of a plurality of rotating seats near the side of motor A; the rotating seats on the two rotating seats are concentrically arranged accordingly.

[0023] A drive wheel is fixedly installed at the outer end of the electric actuator, and the drive wheel can mesh with a ring rack for transmission.

[0024] By adopting the above technical solution, the drive wheel rotates, thereby driving the rotating seat connected by the ring rack to rotate.

[0025] As an optional solution to the technical solution of this application, the welding part limiting mechanism includes multiple positioning blocks, and two connecting rods are hinged to the side of the positioning block near the rotating seat; two sliding grooves are symmetrically opened in the middle of the rotating seat, and the inner wall of the sliding groove is slidably engaged with the end of the connecting rod.

[0026] As an optional solution to the technical solution of this application, the welding part limiting mechanism further includes multiple turntables. Two pull rods are eccentrically connected to one side of the turntable, and the other end of the pull rod is connected to the end of the connecting rod. A transmission wheel is fixedly installed on the other side of the turntable, and a motor B is fixedly installed on one of the transmission wheels. The motor B is fixedly installed with the rotating seat.

[0027] As an optional solution to the technical solution of this application, a transmission rack is rotatably provided on one side of the inner wall of the rotating seat, and the transmission rack meshes with multiple transmission wheels for transmission.

[0028] By adopting the above technical solution, motor B is started, which drives the connected transmission wheel to rotate. Then, the transmission rack drives other transmission wheels to rotate, thereby driving the turntable to rotate. The turntable then drives the connecting rod connected to the pull rod, causing one end of the connecting rod to slide in the slide groove. The cooperation of the two connecting rods causes the positioning block to contact the weldment for positioning and fixation.

[0029] A method of using a ring welding machine includes the following steps:

[0030] S1. When welding is required, a suitable welding workpiece limiting mechanism can be selected according to the shape of the weld.

[0031] S2. According to the length of the weldment, rotate the adjusting sleeve so that the adjusting sleeve drives the movable rod of the threaded connection to move, thereby driving the connected rotating seat closer to another rotating seat, so that the distance between the two rotating seats can be adjusted.

[0032] S3. Place the two weldments into the rotating seat, then start motor B. Motor B drives the connected transmission wheel to rotate, and then drives the other transmission wheels to rotate through the transmission rack, thereby driving the turntable to rotate. The turntable then drives the connecting rod connected to the pull rod, so that one end of the connecting rod slides in the slide groove. The cooperation of the two connecting rods drives the positioning block to contact the weldment for positioning and fixing; fix both ends of the weldment.

[0033] S4. Then, use the hydraulic rod to move the welding machine body to the appropriate position for welding. Then start the motor A to drive the connected fan blades to rotate. The fumes generated during welding are drawn into the collection seat for purification through the air intake hood.

[0034] S5. When it is necessary to rotate the workpiece for ring welding, the electric push rod can be activated to drive the connected drive wheel to move, so that the drive wheel meshes with the ring rack. At this time, the driving wheel connected to motor A will drive the driven wheel to rotate, thereby driving the drive wheel connected to the electric push rod to rotate, thereby driving the rotating seat connected to the ring rack to rotate, thus driving the workpiece to rotate for ring welding.

[0035] S6. After completing the welding of one workpiece, the two rotating seats can be rotated 180 degrees by rotating the worm gear to perform circumferential welding on another workpiece.

[0036] 3. Beneficial effects

[0037] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0038] 1. This application effectively solves the technical problems in the prior art by adopting the welding workpiece limiting mechanism technology, thereby realizing the limiting and fixing of welding workpieces of different shapes, replacing manual hand-held fixing, and thus achieving the effect of rapid welding.

[0039] 2. By setting a drive wheel, this application enables the rotating seat to rotate simultaneously with the fan blade driven by motor A during circumferential welding of the workpiece, thereby enabling circumferential welding of the workpiece, diversifying the welding methods of the device, and further improving welding efficiency.

[0040] 3. By setting multiple welding limiting mechanisms, this application allows the device to select different welding limiting mechanisms according to the different shapes of the weldment, thereby improving the practicality of the device. At the same time, by setting an adjusting rod, the distance between the two rotating seats can be adjusted, thus making it suitable for welding weldments of different sizes. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of a ring welding machine disclosed in a preferred embodiment of this application;

[0042] Figure 2 This is a partial cross-sectional view of the overall structure of a ring welding machine disclosed in a preferred embodiment of this application;

[0043] Figure 3 This is a partial cross-sectional schematic diagram of the welding table and other structures of a ring welding machine disclosed in a preferred embodiment of this application;

[0044] Figure 4 This is a schematic diagram of the rotating seat and other structures of a ring welding machine disclosed in a preferred embodiment of this application;

[0045] Figure 5 This is a schematic diagram of the adjustment rod structure of a ring welding machine disclosed in a preferred embodiment of this application;

[0046] Figure 6 This is a schematic diagram of the rotating seat structure of a ring welding machine disclosed in a preferred embodiment of this application;

[0047] Figure 7 This is a partial cross-sectional view of the workpiece rotation mechanism and workpiece limiting mechanism of the ring welding machine disclosed in a preferred embodiment of this application.

[0048] The following are the labels in the diagram: 1. Welding table; 2. Welding fume collection mechanism; 3. Hydraulic rod; 4. Welding machine body; 5. Adjusting rod; 6. Rotating seat; 7. Workpiece rotation mechanism; 8. Workpiece limiting mechanism; 201. Collection seat; 202. Air inlet hood; 203. Fan blade; 204. Motor A; 205. Drive wheel; 206. Driven wheel; 207. Electric actuator; 208. Drive wheel; 501. Adjusting sleeve; 502. Movable rod; 601. Sleeve rod; 602. Rotating sleeve; 603. Worm gear; 701. Rotating seat; 702. Ring rack; 703. Slide groove; 704. Transmission rack; 101. Worm; 801. Positioning block; 802. Connecting rod; 803. Turntable; 804. Pull rod; 805. Transmission wheel; 806. Motor B. Detailed Implementation

[0049] The present application will be further described in detail below with reference to the accompanying drawings.

[0050] Reference Figure 1 , Figure 2 and Figure 4 A ring welding machine includes a welding table 1, a welding fume collection mechanism 2, a hydraulic rod 3, a welding machine body 4, an adjusting rod 5, a rotating seat 6, a workpiece rotation mechanism 7, and a workpiece limiting mechanism 8.

[0051] A welding fume collection mechanism 2 is fixedly installed on the welding table 1;

[0052] The hydraulic rod 3 is fixedly mounted on the welding fume collection mechanism 2, and the welding machine body 4 is fixedly mounted on the movable rod of the hydraulic rod 3;

[0053] An adjusting rod 5 is rotatably mounted on the welding table 1;

[0054] A rotating seat 6 is fixedly installed at one end of the adjusting rod 5; a movable rod 502 is slidably installed on the adjusting rod 5; a rotating seat 6 is fixedly installed at one end of the movable rod 502.

[0055] Two welding workpiece rotation mechanisms 7 are rotatably mounted on the rotating base 6. The welding workpiece rotation mechanism 7 can drive the welding workpiece to rotate for circumferential welding.

[0056] Multiple welding workpiece limiting mechanisms 8 are fixedly installed on the welding workpiece rotation mechanism 7. The welding workpiece limiting mechanism 8 can realize the function of limiting and fixing welding workpieces of different shapes.

[0057] Reference Figure 3 The welding fume collection mechanism 2 includes a collection base 201, an air inlet hood 202, a fan blade 203, and a drive mechanism. The collection base 201 is fixedly installed on the welding table 1. The air inlet hood 202 is fixedly installed on the air inlet end of the collection base 201 via a flexible hose. The air inlet hood 202 is fixedly installed on one side of the welding machine body 4. The fan blade 203 is rotatably installed inside the collection base 201, and activated carbon is placed on the inner wall of the air outlet end of the collection base 201. A drive mechanism is installed inside the welding table 1, and the fan blade 203 is rotatably installed on the drive mechanism, which can drive the fan blade 203 to rotate.

[0058] The drive mechanism includes a motor A204, a drive wheel 205, and a driven wheel 206. The motor A204 is located inside the welding station 1. The output end of the motor A204 is fixedly installed with the fan blade 203. The drive wheel 205 is fixedly installed at the output end of the motor A204. The driven wheel 206 is meshed on one side of the drive wheel 205. An electric actuator 207 is fixedly installed on one side of the driven wheel 206. The other end of the electric actuator 207 passes through the welding station 1 and is rotatably installed with the welding station 1.

[0059] Reference Figure 5 An adjusting sleeve 501 is rotatably provided on the outer wall of the other end of the adjusting rod 5. A movable rod 502 is threadedly connected to the inner wall of the adjusting sleeve 501. The outer wall of the movable rod 502 is slidably fitted with the inner wall of the adjusting rod 5.

[0060] Reference Figure 3 and Figure 6The rotating seat 6 on the adjusting rod 5 is rotatably mounted to the welding table 1. A sleeve 601 is fixedly mounted at the end of the rotating seat 6 on the movable rod 502. A rotating sleeve 602 is slidably mounted on the outer wall of the sleeve 601. The rotating sleeve 602 is rotatably mounted to the welding table 1. A worm gear 603 is fixedly mounted on the outer wall of the rotating sleeve 602. A worm 101 is rotatably mounted through one side of the outer wall of the welding table 1, and the worm 101 meshes with the worm gear 603 for transmission. The rotating sleeve 602 is concentrically mounted to the adjusting rod 5.

[0061] Furthermore, a motor C is provided below the worm gear 101, and the shaft of the motor C is coaxially and fixedly connected to the worm gear 101.

[0062] Reference Figure 7 The welding component rotation mechanism 7 includes a rotating seat 701 and an annular rack 702;

[0063] Rotary seat 701 and rotating seat 6 are rotatably configured, wherein a ring rack 702 is fixedly provided on the outer wall of the rotating seat 701 near the motor A204; the rotating seats 701 on the two rotating seats 6 are concentrically configured accordingly.

[0064] A drive wheel 208 is fixedly installed at the outer end of the electric actuator 207, and the drive wheel 208 can mesh with the ring rack 702 for transmission.

[0065] The welding part limiting mechanism 8 includes multiple positioning blocks 801. Two connecting rods 802 are hinged to the side of the positioning block 801 near the rotating seat 701. Two sliding grooves 703 are symmetrically opened in the middle of the rotating seat 701. The inner wall of the sliding groove 703 is slidably engaged with the end of the connecting rod 802.

[0066] The welding part limiting mechanism 8 also includes multiple turntables 803. Two pull rods 804 are eccentrically connected to one side of each turntable 803. The other end of each pull rod 804 is connected to the end of a connecting rod 802. A transmission wheel 805 is fixedly mounted on the other side of the turntable 803. One of the transmission wheels 805 is fixedly mounted with a motor B806, which is fixedly mounted to the rotating base 701. The two ends of the pull rods 804 are spherical, allowing the pull rods 804 to rotate at multiple angles.

[0067] A transmission rack 704 is rotatably mounted on the inner wall of one side of the rotating seat 701. The transmission rack 704 meshes with multiple transmission wheels 805 for transmission.

[0068] Reference Figures 1-7 A method of using a ring welding machine includes the following steps:

[0069] S1. When welding is required, a suitable welding workpiece limiting mechanism 8 can be selected according to the shape of the weld.

[0070] S2. According to the length of the weldment, rotate the adjusting sleeve 501 so that the adjusting sleeve 501 drives the threaded movable rod 502 to move, thereby driving the connected rotating seat 6 to move closer to another rotating seat 6, so that the distance between the two rotating seats 6 can be adjusted.

[0071] S3. Then, place the two weldments into the rotating seat 701 respectively, and start the motor B806, so that the motor B806 drives the connected transmission wheel 805 to rotate, and then drives the other transmission wheels 805 to rotate through the transmission rack 704, thereby driving the turntable 803 to rotate. Then the turntable 803 drives the connecting rod 802 connected to the pull rod 804, so that one end of the connecting rod 802 slides in the slide groove 703. The cooperation of the two connecting rods 802 drives the positioning block 801 to contact the weldment for positioning and fixing; both ends of the weldment are fixed.

[0072] S4. Then, the hydraulic rod 3 is used to move the welding machine body 4 to a suitable position for welding. Then, the motor A204 is started to drive the connected fan blade 203 to rotate. The fumes generated during welding are drawn into the collection seat 201 for purification through the air inlet hood 202.

[0073] S5. When it is necessary to rotate the workpiece for ring welding, the electric actuator 207 can be activated to drive the connected drive wheel 208 to move, so that the drive wheel 208 meshes with the ring rack 702. At this time, the driving wheel 205 connected to the motor A204 will drive the driven wheel 206 to rotate, thereby driving the drive wheel 208 connected to the electric actuator 207 to rotate, thereby driving the rotating seat 701 connected to the ring rack 702 to rotate, thereby driving the workpiece to rotate for ring welding.

[0074] S6. After completing the welding of one workpiece, the two rotating seats 6 can be rotated 180 degrees by rotating the worm gear 101 to perform circumferential welding on another workpiece.

[0075] The implementation principle of a ring welding machine according to an embodiment of the present invention is as follows: When it is necessary to weld a workpiece, a suitable workpiece limiting mechanism 8 can be selected according to the shape of the workpiece; according to the length of the workpiece, the adjusting sleeve 501 is rotated so that the adjusting sleeve 501 drives the threaded movable rod 502 to move, thereby driving the connected rotating seat 6 to move closer to another rotating seat 6, thereby adjusting the distance between the two rotating seats 6.

[0076] Then, the two weldments are placed into the rotating seat 701, and the motor B806 is started, which drives the connected transmission wheel 805 to rotate. Then, through the transmission rack 704, the other transmission wheels 805 are rotated, thereby driving the turntable 803 to rotate. The turntable 803 then drives the connecting rod 802 connected to the tie rod 804, so that one end of the connecting rod 802 slides in the slide groove 703. The cooperation of the two connecting rods 802 drives the positioning block 801 to contact the weldment for positioning and fixing; both ends of the weldment are fixed.

[0077] Then, the hydraulic rod 3 is used to move the welding machine body 4 to a suitable position for welding. Then, the motor A204 is started to drive the connected fan blade 203 to rotate. The fumes generated during welding are drawn into the collection seat 201 for purification through the air inlet hood 202.

[0078] When it is necessary to rotate the workpiece for ring welding, the electric actuator 207 can be activated to drive the connected drive wheel 208 to move, so that the drive wheel 208 meshes with the ring rack 702. At this time, the driving wheel 205 connected to the motor A204 will drive the driven wheel 206 to rotate, thereby driving the drive wheel 208 connected to the electric actuator 207 to rotate, thereby driving the rotating seat 701 connected to the ring rack 702 to rotate, thus driving the workpiece to rotate for ring welding.

[0079] After welding one component, the two rotating seats 6 can be rotated 180 degrees by rotating the worm gear 101 to perform circumferential welding on another component.

[0080] This invention employs a weldment limiting mechanism to limit and fix weldments of different shapes, replacing manual hand-held fixing and thus achieving rapid welding. By incorporating a drive wheel, during circumferential welding of the weldment, the rotating base can be rotated simultaneously with the fan blades driven by motor A, enabling circumferential welding and diversifying the welding methods of the device, further improving welding efficiency. By setting multiple welding limiting mechanisms, the device can select different welding limiting mechanisms according to the different shapes of the weldments, thereby improving its practicality. Furthermore, by incorporating an adjusting rod, the distance between the two rotating bases can be adjusted, making it suitable for welding weldments of different sizes.

[0081] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ring welding machine, comprising: a welding table (1), a welding fume collection mechanism (2), a hydraulic rod (3), a welding machine body (4), an adjusting rod (5), a rotating seat (6), a workpiece rotation mechanism (7), and a workpiece limiting mechanism (8), characterized in that: A welding fume collection mechanism (2) is fixedly installed on the welding table (1); The hydraulic rod (3) is fixedly mounted on the welding fume collection mechanism (2), and the welding machine body (4) is fixedly mounted on the movable rod of the hydraulic rod (3); An adjusting rod (5) is rotatably mounted on the welding table (1); A rotating seat (6) is fixedly provided at one end of the adjusting rod (5); a movable rod (502) is slidably provided on the adjusting rod (5); a rotating seat (6) is fixedly provided at one end of the movable rod (502). Two welding workpiece rotation mechanisms (7) are rotatably mounted on the rotating base (6); the welding workpiece rotation mechanism (7) can drive the welding workpiece to rotate for circumferential welding; Multiple welding workpiece limiting mechanisms (8) are fixedly installed on the welding workpiece rotation mechanism (7); the welding workpiece limiting mechanism (8) can realize the function of limiting and fixing welding workpieces of different shapes; The welding fume collection mechanism (2) includes a collection base (201), an air inlet hood (202), a fan blade (203), and a drive mechanism. The collection base (201) is fixedly installed with the welding table (1). The air inlet end of the collection base (201) is fixedly installed with the air inlet hood (202) through a hose. The air inlet hood (202) is fixedly installed on one side of the welding machine body (4). The fan blade (203) is rotatably installed inside the collection base (201). The welding table (1) is equipped with a drive mechanism, which can drive the fan blade (203) to rotate. The drive mechanism includes a motor A (204), a drive wheel (205), and a driven wheel (206). The motor A (204) is located inside the welding table (1). The output end of the motor A (204) is fixedly connected to the fan blade (203). The drive wheel (205) is fixedly connected to the output end of the motor A (204). The driven wheel (206) is meshed on one side of the drive wheel (205). An electric actuator (207) is fixedly connected to one side of the driven wheel (206). The welding component rotation mechanism (7) includes a rotating seat (701) and an annular rack (702), wherein the annular rack (702) is fixedly provided on the outer wall of the rotating seat (701) near the motor A (204); the rotating seats (701) on the two rotating seats (6) are concentrically arranged accordingly; The electric actuator (207) has a drive wheel (208) fixedly installed at its outer end, and the drive wheel (208) is meshed with the ring rack (702) for transmission. The welding component limiting mechanism (8) includes multiple positioning blocks (801), and two connecting rods (802) are hinged to the side of the positioning block (801) near the rotating seat (701). The rotating seat (701) has two symmetrical sliding grooves (703) in the middle, and the inner wall of the sliding groove (703) is slidably fitted with the end of the connecting rod (802); The welding part limiting mechanism (8) also includes multiple turntables (803). Two pull rods (804) are eccentrically connected to one side of the turntable (803). The other end of the pull rod (804) is connected to the end of the connecting rod (802). A transmission wheel (805) is fixedly provided on the other side of the turntable (803). One of the transmission wheels (805) is fixedly provided with a motor B (806). The motor B (806) is fixedly provided with a rotating seat (701). A transmission rack (704) is rotatably provided on the inner wall of one side of the rotating seat (701). The transmission rack (704) meshes with multiple transmission wheels (805) for transmission.

2. The ring welding machine according to claim 1, characterized in that: An adjusting sleeve (501) is rotatably provided on the outer wall of the other end of the adjusting rod (5), and a movable rod (502) is threadedly connected to the inner wall of the adjusting sleeve (501). The outer wall of the movable rod (502) is slidably fitted with the inner wall of the adjusting rod (5).

3. The ring welding machine according to claim 2, characterized in that: The rotating seat (6) on the adjusting rod (5) is rotatably connected to the welding table (1). The end of the rotating seat (6) on the movable rod (502) is fixedly provided with a sleeve rod (601). The outer wall of the sleeve rod (601) is slidably fitted with a rotating sleeve (602). The rotating sleeve (602) is rotatably connected to the welding table (1). The outer wall of the rotating sleeve (602) is fixedly provided with a worm gear (603). A worm gear (101) is rotatably mounted through one side of the outer wall of the welding table (1), and the worm gear (101) is meshed with the worm wheel (603) for transmission.

4. A method of using the ring welding machine according to any one of claims 1-3, characterized in that, Includes the following steps: S1. When welding is required, the appropriate welding limit mechanism (8) can be selected according to the shape of the welding part. S2. According to the length of the weldment, rotate the adjusting sleeve (501) so that the adjusting sleeve (501) drives the threaded connecting movable rod (502) to move, thereby driving the connected rotating seat (6) to move closer to another rotating seat (6), thereby adjusting the distance between the two rotating seats (6); S3. Place the two weldments into the rotating seat (701) respectively, and then start the motor B (806) so that the motor B (806) drives the connected transmission wheel (805) to rotate, and then drives the other transmission wheels (805) to rotate through the transmission rack (704), thereby driving the turntable (803) to rotate. Then the turntable (803) drives the connecting rod (802) connected to the tie rod (804) so ​​that one end of the connecting rod (802) slides in the slide groove (703). The cooperation of the two connecting rods (802) drives the positioning block (801) to contact the weldment for positioning and fixing; fix both ends of the weldment. S4. Use the hydraulic rod (3) to move the welding machine body (4) to a suitable position for welding, and then start the motor A (204) to drive the connected fan blades (203) to rotate. The fumes generated during welding are drawn into the collection seat (201) for purification through the air intake hood (202). S5. When it is necessary to rotate the workpiece for ring welding, the electric push rod (207) can be activated to drive the connected drive wheel (208) to move, so that the drive wheel (208) meshes with the ring rack (702). At this time, the driving wheel (205) connected to the motor A (204) will drive the driven wheel (206) to rotate, thereby driving the drive wheel (208) connected to the electric push rod (207) to rotate, thereby driving the rotating seat (701) connected to the ring rack (702) to rotate, thereby driving the workpiece to rotate for ring welding. S6. After completing the welding of one workpiece, the two rotating seats (6) can be rotated 180 degrees by rotating the worm (101) to perform ring welding on another workpiece.

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