CN117464285A - An automatic welding machine for bent pipes - Google Patents

Abstract

The invention discloses an automatic elbow welding machine, which belongs to the technical field of elbow welding. The automatic elbow welding machine includes a support mechanism. Two sets of clamping mechanisms are symmetrically arranged on the top of the support mechanism. The bottom of the tightening mechanism is equipped with a limiting mechanism; the top center of the support mechanism is fixedly connected to a rotating base, the top of the supporting mechanism is installed with an angle fine-tuning mechanism close to the side of the rotating base, and the top of the rotating base is fixedly connected to Support stand. By designing the support mechanism, the clamping mechanism and the limiting mechanism, the present invention can not only clamp elbows with different shapes, but also clamp elbows placed in different positions. It has strong functionality and greatly improves the efficiency. The automatic welding machine has high welding efficiency and can self-lock through the worm and worm gear in the limiting mechanism to prevent the elastic steel band in the clamping mechanism from loosening during clamping, thus greatly improving the fixation of the bent pipe.

Description

An automatic welding machine for bent pipes

Technical field

The invention belongs to the technical field of elbow welding, and specifically relates to an automatic elbow welding machine.

Background technique

Bend pipes are bent using complete sets of bending equipment, which are divided into two processes: cold simmering and hot pushing. No matter what kind of machinery, equipment and pipes, most bend pipes are used, mainly for oil, gas, and liquid infusion. And engineering bridge construction, the materials for bent pipes include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics. Pipe elbow welding, however, is the joining of two or more curved pipes or fittings, often used in piping systems in construction, industry, and manufacturing.

Bend pipe welding can be achieved by many different methods, the most common of which are manual arc welding and automated welding. However, when manual arc welding is performed on two bent pipes, one of the bent pipes is usually clamped by a clamp. Tight, the staff holds another elbow to fit it, and then holds a welding gun to weld the two elbows. Although it is flexible and can weld the fitting surfaces of different elbows, this welding method will increase the number of staff fatigue strength, thereby reducing welding efficiency; at the same time, the existing automated welding machine also clamps two bent pipes together through a clamp, and automatically welds through a welding gun. Although the welding speed has been improved, this welding This method cannot fully weld the oblique joint surfaces of the two elbows, and can only weld elbows with regular shapes. When the welding quality is poor, workers still need to manually weld to make repairs, thereby reducing the risk of the elbows. Welding efficiency.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the above-mentioned shortcomings of the prior art and provide an automatic welding machine for bent pipes.

The technical solution adopted to solve the above technical problems is: an automatic welding machine for bent pipes, including a support mechanism, two sets of clamping mechanisms are symmetrically arranged on the top of the support mechanism, and the bottoms of the two sets of clamping mechanisms are equipped with limited bit organization;

The top center of the support mechanism is fixedly connected to a rotating base, the top of the support mechanism is equipped with an angle fine-tuning mechanism close to one side of the rotating base, and the top of the rotating base is fixedly connected to a support frame;

A welding mechanism is installed on the support frame, a gun body adjustment mechanism is installed on the welding mechanism, and two elbow bodies are provided on the top of the support mechanism.

Further, the support mechanism includes a processing platform, two welding seats are fixedly connected to the top of the processing platform, rubber plates are fixedly connected to the tops of the two welding seats, and there are multiple holes on the tops of the two rubber plates. A plurality of through holes penetrate through the corresponding welding seat respectively, and the tops of the two rubber plates are respectively fit with the bottom ends of the corresponding outer walls of the elbow body.

Through the above technical solution, when two elbow main bodies need to be welded, the two elbow main bodies are usually placed on the corresponding welding seats and supported by the rubber plates on the two welding seats to achieve a certain anti-slip effect. , thereby improving the stability when clamping the two elbow bodies. At the same time, the multiple through holes are convenient for multiple elastic steel strips to penetrate, so that the placement and fixation of elbow bodies with different shapes can be achieved.

Further, the clamping mechanism includes a movable seat, a magnet is installed at the center of the top of the movable seat, an elastic steel belt is fixedly connected to the top of the movable seat, and a rubber belt is fixedly connected to the center of the inner wall of the elastic steel belt. , the bottom end of the inner wall of the elastic steel belt is fixedly connected with a rack, the bottom of the movable seat is provided with a first chute, and the bottom of the movable seat is located at both ends of the first chute and is fixedly connected with the first fixed seat, a first threaded rod is rotatably connected between the two first fixed seats, a first operating panel is fixedly connected to the outer end of the first threaded rod, and a first moving plate is slidably connected in the first chute. seat.

Through the above technical solution, when clamping the two elbow bodies, the two elbow bodies are placed on the corresponding welding seats, and the bottoms of the two welding seats are magnetically attracted by two magnet blocks. For the movable seat connected to it, pass the elastic steel belt on the movable seat through the through hole on the welding seat, tighten one end of the elastic steel belt, and tightly fit the rubber belt with the outer wall of the elbow body, and then tighten the elastic steel belt. One end of the steel belt is inserted into the fixed shell through the guide tube, and is limited and clamped by the limiting mechanism. Multiple elastic steel belts clamp and fix the two elbow bodies respectively, which not only has strong fixation, but also can be clamped For different shapes of elbow bodies, the two elbow bodies can be placed in different positions on the welding seat. The clamping mechanism also clamps them, which is highly functional and facilitates the welding mechanism to weld them.

Further, the movable seat is magnetically attracted to the bottom of the welding seat through a magnetic block, the elastic steel band penetrates two of the through holes on the welding seat, and the inner wall of the rubber band is closely attached to the outer wall of the elbow body. The first moving base is threadedly connected to the first threaded rod.

Through the above technical solution, the magnetic block can provide a certain auxiliary effect, making it easier for the staff to position the movable seat at the bottom of the welding seat, thereby making it easier for the elastic steel belt to clamp the elbow body and clamp the elbow body of different thicknesses. When it is tight, it is necessary to adjust the limit mechanism. At this time, the first operating plate is rotated so that the first operating plate rotates to drive the first threaded rod to rotate. The rotation of the first threaded rod drives the first movable base to move, and the first movable base moves. The limit mechanism is driven to move, allowing fine adjustment of the distance of the limit mechanism, thereby improving the fixation of the clamping mechanism.

Further, the limiting mechanism includes a fixed shell fixedly connected to the bottom of the first movable base. A rotating shaft is rotatably connected between the inner walls of the fixed shell, and a worm gear is fixedly connected to the outer wall of the rotating shaft. The top of the fixed shell A worm is rotatably connected to the inner surface of the bottom. The top of the outer wall of the worm is fixedly connected to a first gear. The inner surface of the bottom of the fixed shell is fixedly connected to a first machine base. The top of the first machine base is fixedly connected. There is a first servo motor, a second gear is fixedly connected to the top end of the output shaft of the first servo motor, and a guide tube is fixedly connected to the top end of the fixed shell.

Through the above technical solution, when the bottom end of the elastic steel belt is inserted into the fixed shell through the guide tube, the rack on the elastic steel belt is in contact with the worm gear. At this time, the first servo motor is started, and the first servo motor passes through the output shaft. The rotation drives the second gear to rotate, causing the rotation of the second gear to drive the first gear to rotate, causing the rotation of the first gear to drive the worm to rotate, causing the rotation of the worm to drive the worm gear to rotate, causing the rotation of the worm gear to drive the meshed rack downwards move, thereby driving the elastic steel belt to tighten downwards, thereby realizing the clamping process of the elastic steel belt, preventing the welding mechanism from loosening when welding the two elbow main bodies, and greatly improving the fixation of the two elbow main bodies. sex.

Further, the bottom end of the elastic steel strip penetrates the guide tube and the bottom of the fixed shell, the worm gear meshes with the rack, the worm gear meshes with the worm gear, and the second gear meshes with the first gear.

Through the above technical solution, the worm and the worm gear are meshed to achieve a reverse self-locking effect to prevent the elastic steel belt from loosening when clamped.

Further, the angle fine-tuning mechanism includes a first ring gear fixedly connected to the outer wall of the rotating base. The top of the processing table is located on one side of the rotating base and is fixedly connected to a mounting bracket. The inner surface of the top of the mounting bracket is fixedly connected to A second machine base, a second servo motor is fixedly connected to the bottom of the second machine base, a third gear is fixedly connected to the outer wall of the output shaft of the second servo motor, and the third gear meshes with the first ring gear.

Through the above technical solution, when the fitting surface of the two elbow bodies is an inclined plane, the welding mechanism needs to be fine-tuned through the angle fine-tuning mechanism. At this time, the second servo motor is started, so that the second servo motor rotates through the output shaft The third gear is driven to rotate, so that the rotation of the third gear drives the first ring gear to rotate, and then drives the rotating base connected to it to rotate. The specified angle can be adjusted by setting the second servo motor, thereby realizing the rotation of the annular turntable. Designate the position, and then realize the welding process of the two bent pipe bodies on the oblique fitting surface, without the need for manual welding by the later staff. It is not only highly functional, but also greatly reduces the work intensity of the staff.

Further, the welding mechanism includes a swivel that is rotatably connected to the inner wall of the support frame, an annular turntable is fixedly connected to the other side of the swivel, and a mounting seat is fixedly connected to the side of the annular turntable away from the swivel. A second chute is provided in the mounting base. A second movable base is slidably connected in the second chute. A welding gun is fixedly connected to the other side of the second movable base. The top of the welding gun is fixedly connected to The connecting pipe, the other side of the top front end of the processing table is fixedly connected to a welding box, the other side of the annular turntable is fixedly connected to a second ring gear, and the top center of the rotating base is fixedly connected to a third machine base , a third servo motor is fixedly connected to the top of the third machine base, and a fourth gear is fixedly connected to the outer wall of the output shaft of the third servo motor.

Through the above technical solution, when welding two elbow main bodies, the welding box is controlled so that the welding gun welds the fitting surface of the two elbow main bodies. At this time, the third servo motor is started to allow the third servo motor to pass The rotation of the output shaft drives the fourth gear to rotate, so that the rotation of the fourth gear drives the second ring gear to rotate. The rotation of the second ring gear drives the annular turntable to rotate. The rotation of the annular turntable drives the welding gun to rotate, causing the welding gun to revolve around the two bends. The fitting surface of the pipe body is welded around. This welding method not only has higher welding efficiency, but also makes the welding more complete.

Further, the other end of the connecting pipe is fixedly connected to the welding box, the fourth gear meshes with the second ring gear, and the inner ends of the two elbow bodies are close to the center of the annular turntable.

Through the above technical solution, when the two elbow main bodies are clamped, the fitting surface of the two elbow main bodies and the nozzle of the welding gun are located in a straight line, which effectively improves the welding accuracy of the welding gun.

Further, the gun body adjustment mechanism includes two second fixed seats. The two second fixed seats are respectively fixedly connected to the top and bottom ends of one side of the mounting base. There is a rotating connection between the two mounting seats. The second threaded rod is threadedly connected to the second movable base, and the top end of the second threaded rod is fixedly connected with the second operating panel.

Through the above technical solution, when two elbow bodies of different thicknesses need to be welded, the second operating disk needs to be rotated so that the second operating disk rotates to drive the second threaded rod to rotate, so that the second threaded rod rotates to drive the second movement. The base moves, thereby driving the welding gun connected to it to move. According to the bending body of different thicknesses, the different positions of the welding gun can be adjusted. It is highly functional and does not need to replace different fixtures and welding devices, which greatly improves the bending efficiency. Pipe body welding efficiency.

The beneficial effects of the present invention are as follows: (1) By designing the support mechanism, clamping mechanism and limiting mechanism, the present invention can not only clamp elbows with different shapes, but also clamp elbows placed in different positions. , has strong functionality, which greatly improves the welding efficiency of the automatic welding machine, and can be self-locked through the worm and worm gear in the limit mechanism to prevent the elastic steel belt in the clamping mechanism from loosening during clamping, thus The fixability of the bent pipe is greatly improved; (2) The present invention is designed with a welding mechanism and an angle fine-tuning mechanism. When it is necessary to weld the oblique fitting surfaces of two bent pipes, the angle of the welding gun can be adjusted through the angle fine-tuning mechanism. The fine-tuning process, and then the welding process directly after adjustment, eliminates the need for manual welding of the bent pipe in the later stage, which not only improves the welding efficiency, but also reduces the work fatigue intensity of the staff; (3) The present invention is designed with a gun body adjustment mechanism, which requires When welding elbows of different thicknesses, the position of the welding gun can be adjusted through the gun body adjustment mechanism to achieve welding of two elbows. It has a strong function and does not need to replace different fixtures and welding devices, thereby greatly improving the efficiency of welding. Improve the welding efficiency of the elbow body.

Description of the drawings

Figure 1 is a first perspective view of the appearance of the present invention;

Figure 2 is a second perspective view of the appearance of the present invention;

Figure 3 is a front view of the present invention;

Figure 4 is a cross-sectional view of the present invention;

Figure 5 is a schematic structural diagram of the clamping mechanism of the present invention;

Figure 6 is a schematic diagram of the internal structure of the limiting mechanism of the present invention;

Figure 7 is a schematic structural diagram of the angle fine-tuning mechanism of the present invention;

Figure 8 is a schematic structural diagram of the gun body adjustment mechanism of the present invention;

Figure 9 is a partial enlarged view of position A in Figure 4.

Reference signs: 1. Support mechanism; 101. Processing table; 102. Welding seat; 103. Rubber plate; 104. Through hole; 2. Clamping mechanism; 201. Movable seat; 202. Magnetic block; 203. Elastic steel belt ; 204. Rubber belt; 205. Rack; 206. First chute; 207. First fixed seat; 208. First threaded rod; 209. First operating panel; 210. First movable seat; 3. Limit Mechanism; 301, fixed shell; 302, rotating shaft; 303, worm gear; 304, worm; 305, first gear; 306, first machine base; 307, first servo motor; 308, second gear; 309, guide tube; 4. Rotating base; 5. Angle fine-tuning mechanism; 501. First ring gear; 502. Mounting frame; 503. Second machine base; 504. Second servo motor; 505. Third gear; 6. Support frame; 7. Welding mechanism; 701, swivel; 702, annular turntable; 703, mounting base; 704, second chute; 705, second moving base; 706, welding gun; 707, connecting pipe; 708, welding box; 709. The second ring gear; 710, the third machine base; 711, the third servo motor; 712, the fourth gear; 8, the gun body adjustment mechanism; 801, the second fixed seat; 802, the second threaded rod; 803, the second Operation panel; 9. Bend pipe main body.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

As shown in Figure 1-9, an automatic bending pipe welding machine in this embodiment includes a support mechanism 1. The support mechanism 1 includes a processing table 101. Two welding seats 102 are fixedly connected to the top of the processing table 101. The tops of the seats 102 are fixedly connected with rubber plates 103. The tops of the two rubber plates 103 are each provided with a plurality of through holes 104, and the plurality of through holes 104 respectively penetrate the corresponding welding seats 102. The two rubber plates 103 have The tops are respectively fitted with the bottom ends of the outer walls of the corresponding elbow bodies 9. When the two elbow bodies 9 need to be welded, the two elbow bodies 9 are usually placed on the corresponding welding seats 102, and the two elbow bodies 9 are connected through the two welding seats. The rubber plate 103 on the 102 provides a certain anti-slip effect, thereby improving the stability when clamping the two elbow bodies 9. At the same time, the multiple through holes 104 facilitate the penetration of multiple elastic steel strips 203, thereby It is possible to place and fix bent pipe bodies 9 with different shapes.

As shown in Figures 5, 6 and 9, two sets of clamping mechanisms 2 are symmetrically arranged on the top of the support mechanism 1. The clamping mechanism 2 includes a movable seat 201. A magnet block 202 is installed in the center of the top of the movable seat 201. The movable seat An elastic steel band 203 is fixedly connected to the top of 201, a rubber band 204 is fixedly connected to the center of the inner wall of the elastic steel band 203, a rack 205 is fixedly connected to the bottom of the inner wall of the elastic steel band 203, and a first slide is provided at the bottom of the movable seat 201. Slot 206, the bottom of the movable seat 201 is located at both ends of the first chute 206, and a first fixed seat 207 is fixedly connected to it. A first threaded rod 208 is rotatably connected between the two first fixed seats 207. The first threaded rod 208 A first operating panel 209 is fixedly connected to the outer end of the first chute 206, and a first moving seat 210 is slidably connected in the first chute 206. When clamping the two elbow main bodies 9, the two elbow main bodies 9 are respectively moved to the corresponding positions. Place it on the welding base 102, and magnetically attract the movable base 201 connected to the bottom of the two welding bases 102 through two magnet blocks 202. Pass the elastic steel belt 203 on the movable base 201 through the welding base. Tighten one end of the elastic steel band 203 through the through hole 104 on the 102. After the rubber band 204 is tightly fitted to the outer wall of the elbow body 9, insert one end of the elastic steel band 203 into the fixed shell 301 through the guide tube 309. It is limited and clamped by the limiting mechanism 3, and a plurality of elastic steel bands 203 clamp and fix the two elbow bodies 9 respectively. It not only has strong fixation, but also can clamp the elbow bodies 9 of different shapes. The two elbow main bodies 9 can be placed in different positions on the welding base 102 respectively. The clamping mechanism 2 also clamps them, which is highly functional and facilitates the welding mechanism 7 to weld them. The movable base 201 passes through the magnetic The block 202 is magnetically attracted to the bottom of the welding base 102. The elastic steel band 203 penetrates two of the through holes 104 on the welding base 102. The inner wall of the rubber band 204 is closely attached to the outer wall of the elbow body 9. The first moving base 210 and The first threaded rod 208 is threaded, and the magnet block 202 can provide a certain auxiliary effect to facilitate the staff to position the movable seat 201 at the bottom of the welding seat 102, thereby facilitating the elastic steel belt 203 to clamp the elbow body 9, and When the elbow bodies 9 of different thicknesses are clamped, the limiting mechanism 3 needs to be adjusted. At this time, the first operating plate 209 is rotated, so that the first operating plate 209 rotates and drives the first threaded rod 208 to rotate. The first threaded rod 208 The rotation drives the first movable base 210 to move, and the movement of the first movable base 210 drives the limiting mechanism 3 to move, thereby achieving fine adjustment of the distance of the limiting mechanism 3 and thereby improving the fixation of the clamping mechanism 2 .

As shown in Figures 5, 6 and 9, the limiting mechanisms 3 are installed at the bottoms of both sets of clamping mechanisms 2. The limiting mechanisms 3 include a fixed shell 301 fixedly connected to the bottom of the first movable base 210. The fixed shell 301 A rotating shaft 302 is rotatably connected between the inner walls, a worm gear 303 is fixedly connected to the outer wall of the rotating shaft 302, a worm 304 is rotatably connected between the top and bottom inner surfaces of the fixed shell 301, and a first gear 305 is fixedly connected to the top of the outer wall of the worm 304. The first machine base 306 is fixedly connected to the bottom inner surface of the shell 301, the first servo motor 307 is fixedly connected to the top of the first machine base 306, the second gear 308 is fixedly connected to the top of the output shaft of the first servo motor 307, and the fixed shell The top end of 301 is fixedly connected with a guide tube 309. When the bottom end of the elastic steel band 203 is inserted into the fixed shell 301 through the guide tube 309, the rack 205 on the elastic steel band 203 is in contact with the worm gear 303. At this time, the first A servo motor 307. The first servo motor 307 drives the second gear 308 to rotate through the rotation of the output shaft, so that the second gear 308 rotates to drive the first gear 305 to rotate, so that the first gear 305 rotates to drive the worm 304 to rotate, so that the worm The rotation of 304 drives the worm gear 303 to rotate, so that the rotation of the worm gear 303 drives the gear rack 205 meshed with it to move downward, thereby driving the elastic steel belt 203 to tighten downward, thereby realizing the clamping process of the elastic steel belt 203 to prevent welding. The mechanism 7 loosens when welding the two elbow main bodies 9, which greatly improves the fixation of the two elbow main bodies 9. The bottom end of the elastic steel band 203 penetrates the guide tube 309 and penetrates out of the bottom of the fixed shell 301. The worm gear 303 meshes with the rack 205, the worm 304 meshes with the worm gear 303, the second gear 308 meshes with the first gear 305, and the worm 304 meshes with the worm gear 303, which has a reverse self-locking effect and prevents the elastic steel belt 203 from being clamped. loosening occurs.

As shown in Figure 7, a rotating base 4 is fixedly connected to the top center of the support mechanism 1. An angle fine-tuning mechanism 5 is installed on the top of the supporting mechanism 1 close to the side of the rotating base 4. The angle fine-tuning mechanism 5 includes a structure fixedly connected to the outer wall of the rotating base 4. The first ring gear 501, the top of the processing table 101 is located on one side of the rotating base 4, and a mounting bracket 502 is fixedly connected to it. The top inner surface of the mounting bracket 502 is fixedly connected to a second machine base 503, and the bottom of the second machine base 503 is fixed. A second servo motor 504 is connected, and a third gear 505 is fixedly connected to the outer wall of the output shaft of the second servo motor 504. The third gear 505 meshes with the first ring gear 501. When the fitting surface of the two elbow bodies 9 is a slope, At this time, it is necessary to fine-tune the welding mechanism 7 through the angle fine-tuning mechanism 5. At this time, the second servo motor 504 is started, so that the second servo motor 504 drives the third gear 505 to rotate through the rotation of the output shaft, so that the third gear 505 The rotation drives the first ring gear 501 to rotate, and then drives the rotating base 4 connected thereto to rotate. The specified angle can be adjusted by setting the second servo motor 504 to rotate the annular turntable 702 to a specified position, thereby achieving tilting. The two bent pipe bodies 9 on the fitting surface are welded, eliminating the need for manual welding by workers in the later stage. It is not only highly functional, but also greatly reduces the work intensity of workers.

As shown in Figures 2, 7 and 8, a support frame 6 is fixedly connected to the top of the rotating base 4, and a welding mechanism 7 is installed on the support frame 6. The welding mechanism 7 includes a swivel 701 that is rotatably connected to the inner wall of the support frame 6. An annular turntable 702 is fixedly connected to the other side of the swivel 701, and a mounting base 703 is fixedly connected to the side of the annular turntable 702 away from the swivel 701. A second chute 704 is provided in the mounting base 703, and the second chute 704 slides inside. A second movable base 705 is connected, a welding gun 706 is fixedly connected to the other side of the second movable base 705, a connecting pipe 707 is fixedly connected to the top of the welding gun 706, and a welding box is fixedly connected to the other side of the top front end of the processing table 101 The body 708 has a second ring gear 709 fixedly connected to the other side of the annular turntable 702, a third machine base 710 fixedly connected to the top center of the rotating base 4, and a third servo motor 711 fixedly connected to the top of the third machine base 710. The fourth gear 712 is fixedly connected to the outer wall of the output shaft of the third servo motor 711. When welding the two elbow main bodies 9, the welding box 708 is controlled so that the welding gun 706 performs the welding on the fitting surface of the two elbow main bodies 9. Welding, start the third servo motor 711 at this time, so that the third servo motor 711 drives the fourth gear 712 to rotate through the rotation of the output shaft, so that the fourth gear 712 rotates to drive the second ring gear 709 to rotate, and the second ring gear 709 rotates The annular turntable 702 is driven to rotate, and the rotation of the annular turntable 702 drives the welding gun 706 to rotate, so that the welding gun 706 performs circumferential welding around the fitting surface of the two elbow bodies 9. This welding method not only has higher welding efficiency, but also has a relatively high welding efficiency. Fully, the other end of the connecting pipe 707 is fixedly connected to the welding box 708, the fourth gear 712 meshes with the second ring gear 709, the inner ends of the two elbow bodies 9 are close to the center of the annular turntable 702, and the two clamping When the two elbow bodies 9 are connected, the fitting surfaces of the two elbow bodies 9 and the nozzle of the welding gun 706 are located in a straight line, which effectively improves the welding accuracy of the welding gun 706.

As shown in Figure 8, a gun body adjustment mechanism 8 is installed on the welding mechanism 7. Two elbow bodies 9 are provided on the top of the support mechanism 1. The gun body adjustment mechanism 8 includes two second fixing seats 801, two second The fixed base 801 is fixedly connected to the top and bottom ends of one side of the mounting base 703. A second threaded rod 802 is rotatably connected between the two mounting bases 703. The second threaded rod 802 is threadedly connected to the second movable base 705. The top of the threaded rod 802 is fixedly connected with a second operating plate 803. When two elbow bodies 9 of different thicknesses need to be welded, the second operating plate 803 needs to be rotated so that the second operating plate 803 rotates to drive the second threaded rod 802. Rotate, causing the second threaded rod 802 to rotate and drive the second moving seat 705 to move, thereby driving the welding gun 706 connected thereto to move. According to the different thicknesses of the elbow body 9, the different positions and functions of the welding gun 706 can be adjusted. It has strong flexibility and does not need to replace different fixtures and welding devices, which greatly improves the welding efficiency of the bend pipe main body 9.

The working principle of this embodiment is as follows. The staff places the two elbow main bodies 9 on the corresponding welding seats 102, so that the fitting surfaces of the two elbow main bodies 9 are located below the muzzle of the welding gun 706. At the bottom of the two welding seats 102, two magnet blocks 202 are used to magnetically attract the movable seat 201 connected thereto. Pass the elastic steel belt 203 on the movable seat 201 through the through hole 104 on the welding seat 102 and pull it. After one end of the tight elastic steel band 203 is tightly fitted to the outer wall of the elbow body 9 through the rubber band 204, when it is necessary to adjust the position of the guide tube 309, the first operating panel 209 is rotated, so that the first operating panel 209 rotates and drives The first threaded rod 208 rotates, and the rotation of the first threaded rod 208 drives the first movable base 210 to move. The movement of the first movable base 210 drives the fixed shell 301 connected to it to move, thereby allowing the guide tube 309 on the fixed shell 301 to move. Adjust to the lower position of the elastic steel belt 203, and then insert one end of the elastic steel belt 203 into the fixed shell 301 through the guide tube 309, so that the rack 205 and the worm gear 303 are in contact and meshed. At this time, the first servo motor 307 is started, and the first servo motor 307 is started. The servo motor 307 drives the second gear 308 to rotate through the rotation of the output shaft, causing the rotation of the second gear 308 to drive the first gear 305 to rotate, causing the rotation of the first gear 305 to drive the worm 304 to rotate, causing the rotation of the worm 304 to drive the worm gear 303 to rotate. , causing the rotation of the worm gear 303 to drive the gear rack 205 meshed with it to move downward, thereby driving the elastic steel belt 203 to tighten downward, realizing the clamping process of the elastic steel belt 203, and at the same time, the placed elbow body 9 can be clamped Clamping processing;

Start the second servo motor 504, so that the second servo motor 504 drives the third gear 505 to rotate through the rotation of the output shaft, so that the third gear 505 rotates to drive the first ring gear 501 to rotate, and the first ring gear 501 rotates to drive the connection with it. The rotating base 4 rotates, and the rotation of the rotating base 4 drives the annular turntable 702 to rotate, thereby achieving fine adjustment of the angle of the elbow main body 9 on the rotating base 4;

The welding box 708 is controlled so that the welding gun 706 welds the fitting surfaces of the two elbow bodies 9. At this time, the third servo motor 711 is started, so that the third servo motor 711 drives the fourth gear 712 to rotate through the rotation of the output shaft. , causing the rotation of the fourth gear 712 to drive the second ring gear 709 to rotate, the rotation of the second ring gear 709 to drive the annular turntable 702 to rotate, the rotation of the annular turntable 702 to drive the welding gun 706 to rotate, so that the welding gun 706 surrounds the two elbow bodies 9’s fitting surface is surrounded by welding;

When it is necessary to adjust the position of the welding gun 706, the second operating plate 803 is rotated, so that the second operating plate 803 rotates to drive the second threaded rod 802 to rotate, so that the second threaded rod 802 rotates to drive the second moving base 705 to move, thereby driving the second moving base 705 to move. The welding gun 706 connected thereto moves, thereby enabling welding of two elbow main bodies 9 of different thicknesses.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention.

Claims (10)

1. The utility model provides an automatic welding machine for bent pipes, includes supporting mechanism (1), its characterized in that: two groups of clamping mechanisms (2) are symmetrically arranged at the top of the supporting mechanism (1), and limiting mechanisms (3) are arranged at the bottoms of the two groups of clamping mechanisms (2);

the top center of the supporting mechanism (1) is fixedly connected with a rotating base (4), an angle fine adjustment mechanism (5) is arranged at one side, close to the rotating base (4), of the top of the supporting mechanism (1), and a supporting frame (6) is fixedly connected to the top of the rotating base (4);

the welding device is characterized in that a welding mechanism (7) is arranged on the supporting frame (6), a gun body adjusting mechanism (8) is arranged on the welding mechanism (7), and two bent pipe main bodies (9) are arranged at the top of the supporting mechanism (1).

2. The automatic pipe bending welding machine according to claim 1, wherein the supporting mechanism (1) comprises a processing table (101), two welding seats (102) are fixedly connected to the top of the processing table (101), rubber plates (103) are fixedly connected to the tops of the two welding seats (102), a plurality of through holes (104) are formed in the tops of the two rubber plates (103), the plurality of through holes (104) penetrate through the corresponding welding seats (102) respectively, and the tops of the two rubber plates (103) are attached to the bottom ends of the outer walls of the corresponding pipe bending main bodies (9) respectively.

3. The automatic pipe bending welding machine according to claim 2, wherein the clamping mechanism (2) comprises a movable seat (201), a magnetic block (202) is installed at the center of the top of the movable seat (201), an elastic steel belt (203) is fixedly connected to the top of the movable seat (201), a rubber belt (204) is fixedly connected to the center of the inner wall of the elastic steel belt (203), a rack (205) is fixedly connected to the bottom end of the inner wall of the elastic steel belt (203), a first sliding groove (206) is formed in the bottom of the movable seat (201), first fixing seats (207) are fixedly connected to the bottom of the movable seat (201) at two ends of the first sliding groove (206), a first threaded rod (208) is rotatably connected between the two first fixing seats (207), a first operating disc (209) is fixedly connected to the outer end of the first threaded rod (208), and a first moving seat (210) is slidably connected to the first sliding groove (206).

4. An automatic pipe bending welding machine according to claim 3, wherein the movable seat (201) is magnetically attracted to the bottom of the welding seat (102) through the magnetic block (202), the elastic steel belt (203) penetrates through two through holes (104) on the welding seat (102), the inner wall of the rubber belt (204) is tightly attached to the outer wall of the pipe bending main body (9), and the first movable seat (210) is in threaded connection with the first threaded rod (208).

5. The automatic pipe bending welding machine according to claim 3, wherein the limiting mechanism (3) comprises a fixed shell (301) fixedly connected to the bottom of the first moving seat (210), a rotating shaft (302) is rotatably connected between the inner walls of the fixed shell (301), a worm wheel (303) is fixedly connected to the outer wall of the rotating shaft (302), a worm (304) is rotatably connected between the top and the bottom inner surface of the fixed shell (301), a first gear (305) is fixedly connected to the top end of the outer wall of the worm (304), a first base (306) is fixedly connected to the bottom inner surface of the fixed shell (301), a first servo motor (307) is fixedly connected to the top end of the output shaft of the first servo motor (307), a second gear (308) is fixedly connected to the top end of the fixed shell (301), and a guide pipe (309) is fixedly connected to the top end of the fixed shell (301).

6. The automatic welding machine for bent pipes according to claim 5, wherein the bottom end of said elastic steel band (203) penetrates through the guide tube (309) and penetrates through the bottom of the fixed housing (301), said worm wheel (303) is meshed with the rack (205), said worm (304) is meshed with the worm wheel (303), and said second gear (308) is meshed with the first gear (305).

7. The automatic pipe bending welding machine according to claim 2, wherein the angle fine adjustment mechanism (5) comprises a first gear ring (501) fixedly connected to the outer wall of the rotating base (4), a mounting frame (502) is fixedly connected to the top of the processing table (101) at one side of the rotating base (4), a second machine base (503) is fixedly connected to the inner surface of the top of the mounting frame (502), a second servo motor (504) is fixedly connected to the bottom of the second machine base (503), a third gear (505) is fixedly connected to the outer wall of the output shaft of the second servo motor (504), and the third gear (505) is meshed with the first gear ring (501).

8. The automatic pipe bending welding machine according to claim 2, wherein the welding mechanism (7) comprises a swivel (701) rotatably connected to the inner wall of the supporting frame (6), the other side of the swivel (701) is fixedly connected with an annular rotary table (702), one side of the annular rotary table (702) away from the swivel (701) is fixedly connected with a mounting seat (703), a second sliding groove (704) is formed in the mounting seat (703), a second moving seat (705) is slidably connected in the second sliding groove (704), the other side of the second moving seat (705) is fixedly connected with a welding gun (706), the top of the welding gun (706) is fixedly connected with a connecting pipe (707), the other side of the front end of the top of the processing table (101) is fixedly connected with a welding box (708), the other side of the annular rotary table (702) is fixedly connected with a second gear ring (709), the top center of the rotary base (4) is fixedly connected with a third base (710), the top of the third base (710) is fixedly connected with a third servo motor output shaft (711), and the top of the third base (710) is fixedly connected with a fourth servo motor output shaft (711).

9. The automatic pipe bending welding machine according to claim 8, wherein the other end of the connecting pipe (707) is fixedly connected to the welding box (708), the fourth gear (712) is meshed with the second gear ring (709), and the inner ends of the two pipe bending main bodies (9) are both close to the center of the annular turntable (702).

10. The automatic pipe bending welding machine according to claim 8, wherein the gun body adjusting mechanism (8) comprises two second fixing seats (801), the two second fixing seats (801) are respectively fixedly connected to the top end and the bottom end of one side of the mounting seat (703), a second threaded rod (802) is rotatably connected between the two mounting seats (703), the second threaded rod (802) is in threaded connection with the second movable seat (705), and the top end of the second threaded rod (802) is fixedly connected with a second operating panel (803).