High-precision double-gun girth welding equipment

Abstract

The utility model discloses high-precision double-gun girth welding equipment, and belongs to the technical field of girth welding. The utility model discloses high-precision double-gun girth welding equipment. A tracking recognition unit comprises a laser tracker, a mounting arm and a connecting piece; the mounting arm is fixedly connected with the side, close to the conveying unit, of the welding unit. One end, far away from the welding unit, of the mounting arm is in bolted connection with the connector; the lower end of the connecting piece is in bolted connection with the upper end of the laser tracker; the connecting piece is an aluminum alloy connecting piece of which the two ends form an angle of 90 degrees; and by arranging the laser tracker, the welding process is tracked and recorded, the two sections of steel pipes are continuously welded, and the welding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of girth welding, and more specifically relates to high-precision double-gun girth welding equipment. Background Art

[0002] A seam refers to a ring-shaped weld. Usually, ring seam welding is used in the end face welding of shaft parts or pipe parts. In the prior art, ring seam welding is usually performed manually. Since the weld surrounds the part, the worker needs to rotate the workpiece while holding the welding gun at the weld, which is difficult to operate and has low welding quality.

[0003] For example, a double-gun circumferential seam welding device with patent application number CN202122286675.5 clamps two pipe parts on the active chuck and the driven chuck respectively, the first cylinder drives the first slider to slide along the slide, adjusts the distance between the active chuck and the driven chuck, and makes the end faces of the two pipe parts abut against each other, the third cylinder drives the third slider to move horizontally, and the second cylinder drives the second slider to move downward until the welding head of the welding gun contacts the weld, and the rotating motor drives the active chuck to rotate. During the rotation of the active chuck, the welding gun continues to weld the weld. After the active chuck rotates one circle, the circumferential welding process is completed, the rotating motor stops working, the second cylinder and the third cylinder reverse drive to reset the welding gun, release the active chuck and the driven chuck, remove the parts from the active chuck and the driven chuck, and the first cylinder reverse drives to reset the driven chuck. The two sets of welding guns can simultaneously weld two different axial positions of the parts, thereby improving the welding efficiency. Compared with manual welding in the prior art, the welding efficiency is high, the problem of difficult circumferential welding is solved, and the welding quality is improved.

[0004] Although the above-mentioned double-gun circumferential seam welding equipment can improve the welding quality, the welding results cannot be effectively tracked and the operator needs to spend energy to observe, which reduces the welding efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a high-precision double-gun circumferential seam welding device, which improves the welding efficiency.

[0006] The utility model discloses a high-precision double-gun circumferential seam welding equipment, comprising a welding unit; a conveying unit is arranged at the lower end of one side of the welding unit; the welding unit is detachably connected to a tracking and identification unit at the position corresponding to the conveying unit; the tracking and identification unit comprises a laser tracker, a mounting arm, and a connecting piece; the mounting arm is fixedly connected to a side of the welding unit close to the conveying unit; the mounting arm is bolted to the connecting piece at one end away from the welding unit; the lower end of the connecting piece is bolted to the upper end of the laser tracker; the connecting piece is an aluminum alloy connecting piece with both ends forming a ninety-degree angle.

[0007] Preferably: the welding unit at least comprises a bracket; the lower end of the bracket is slidably connected to the base; the bracket is provided with four fixing holes at equal intervals along the vertical direction; one of the fixing holes is bolted to a crossbeam fixing frame; the crossbeam fixing frame is slidably connected to the crossbeam, and two pairs of clamping pulleys are fixedly arranged at the corresponding position of the crossbeam fixing frame corresponding to the bracket; the clamping pulley abuts against the upper and lower end surfaces of the crossbeam; the rear end surface of the crossbeam is fixed to the front end of the crossbeam fixing frame by bolts; the side of the crossbeam away from the bracket is fixedly connected to the welding gun machine; the welding gun machine is rotatably connected to the welding gun head away from the bracket; a wire feeder is fixedly arranged on one side of the base.

[0008] Preferably: the conveying unit at least includes a slide groove 1; a screw is rotatably connected to the inner side of the slide groove 1; the screw is threadedly connected to a pair of sliders; one end of the screw passes through the slide groove 1 and is fixedly connected to an adjusting knob; the outer side of the slide groove 1 is fixedly connected to two pairs of electric pulleys; each pulley of the electric pulley is rotatably connected to robot track 1; the upper end of each slider is fixedly connected to a bearing seat; each bearing seat is fixedly connected to a motor and an adjusting box; the output end of each motor is connected to the input end of the adjusting box; the output end of each adjusting box is fixedly connected to a rotating wheel; a robot track 2 is fixedly arranged at the linear position where the center of the slide groove is located, and a lower end of the slide groove is slidably connected to the robot track 2.

[0009] Preferably: the conveying unit comprises at least one slide groove; a pair of partitions are fixedly arranged on the inner side of the slide groove; a screw is rotatably arranged between each of the partitions and the inner end face of the slide groove on the same side; each of the screws is threadedly connected to a slider; each of the screws passes through the end face of one side of the slide groove on the corresponding side and is fixedly connected to an adjusting knob; the upper end of each slider is fixedly connected to a bearing seat; each of the bearing seats is fixedly connected to a motor and an adjusting box; the output end of each motor is connected to the input end of the adjusting box; the output end of each adjusting box is fixedly connected to a rotating wheel; a robot track 2 is arranged at the linear position where the center of the slide groove is located; and a lower end of the slide groove is slidably connected to the robot track 2.

[0010] Preferably, the rotating wheel is a high-elastic rubber wheel.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] (1) By setting up a laser tracker, the welding process is tracked and recorded, and two sections of steel pipes are welded continuously, which improves the welding efficiency;

[0013] (2) By setting robot track 1 and robot track 2, and cooperating with an electric pulley, a servo motor is set in the electric pulley. The servo motor is suitable for high-precision movement, has more accurate positioning, can respond quickly, and has the advantages of strong stability. In addition, the welding length can be set, which can realize automatic straight seam welding process and improve welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the conveying unit of the utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure of the regulating box of the utility model;

[0017] Figure 4 It is a schematic diagram of a conveying unit of a two-stage screw of the utility model.

[0018] Explanation of the numbers in the figure: 10, welding unit; 101, welding gun head; 102, welding gun machine; 103, beam; 104, fixing hole; 105, wire feeder; 106, beam fixing bracket; 107, bracket; 108, base; 109, clamping pulley; 20, tracking and identification unit; 201, laser tracker; 202, mounting arm; 203, connecting piece; 30, conveying unit; 301, adjusting knob; 302, motor; 303, rotating wheel; 304, adjusting box; 305, slide 1; 306, robot track 1; 307, robot track 2; 308, screw; 309, bearing seat; 310, slider; 311, electric pulley; 312, partition. DETAILED DESCRIPTION Specific embodiments

[0019] See also Figure 1 A high-precision double-gun circumferential seam welding equipment, comprising a welding unit 10; a conveying unit 30 is arranged at the lower end of one side of the welding unit 10; the welding unit 10 is detachably connected to a tracking and identification unit 20 corresponding to the conveying unit 30; the tracking and identification unit 20 comprises a laser tracker 201, a mounting arm 202, and a connecting piece 203; the mounting arm 202 is fixedly connected to the side of the welding unit 10 close to the conveying unit 30; the mounting arm 202 is bolted to the connecting piece 203 at one end away from the welding unit 10; the lower end of the connecting piece 203 is bolted to the upper end of the laser tracker 201; the connecting piece 203 is an aluminum alloy connecting piece with both ends forming an angle of ninety degrees; by setting the laser tracker 201, the welding process is tracked and recorded, and two sections of steel pipes are continuously welded, thereby improving the welding efficiency.

[0020] See also Figure 1The welding unit 10 at least includes a bracket 107; the lower end of the bracket 107 is slidably connected to the base 108; the bracket 107 is provided with four fixing holes 104 at equal intervals along the vertical direction; one of the fixing holes 104 is bolted to the beam fixing frame 106; the beam fixing frame 106 is slidably connected to the beam 103, and two pairs of clamping pulleys 109 are fixedly arranged on the beam fixing frame 106 corresponding to the bracket 107; the clamping pulleys 109 abut against the upper and lower end surfaces of the beam 103; the rear end surface of the beam 103 and the front end of the beam fixing frame 106 are fixed by setting bolts; the side of the beam 103 away from the bracket 107 is fixedly connected to the welding gun machine 102; the side of the welding gun machine 102 away from the bracket 107 is rotatably connected to the welding gun head 101; a wire feeder 105 is fixedly arranged on one side of the base 108.

[0021] See also Figure 1-3 The conveying unit 30 at least includes a slide groove 305; the inner side of the slide groove 305 is rotatably connected with a screw rod 308; the screw rod 308 is threadedly connected with a pair of sliders 310; one end of the screw rod 308 passes through the slide groove 305 and is fixedly connected to the adjusting knob 301; the outer side of the slide groove 305 is fixedly connected with two pairs of electric pulleys 311; each pulley of the electric pulley 311 is rotatably connected to the robot track 306; the upper end of each slider 310 is fixedly connected with a bearing seat 309; each bearing seat 309 is fixedly connected with a motor 302 and an adjusting box 304; the output end of each motor 302 is connected with the input end of the adjusting box 304; each adjusting box 304 The output end is fixedly connected to the rotating wheel 303; the robot track 2 307 is fixedly arranged at the linear position where the center of the slide groove 1 305 is located, and the lower end of the slide groove 1 305 is slidably connected to the robot track 2 307; a servo motor is arranged in the electric pulley 311, and the screw 308 is a bidirectional screw to control the synchronous clamping and loosening of the slider 310; by setting the robot track 1 306 and the robot track 2 307, in conjunction with the electric pulley 311, the electric pulley 311 is provided with a servo motor, the servo motor is suitable for high-precision movement, has the advantages of more accurate positioning, rapid response, and strong stability, in addition to which the welding length can be set, so as to realize the automatic straight seam welding process and improve the welding quality.

[0022] See also Figure 1-3 , an encoder is arranged inside the regulating box 304; the above-mentioned decoder is connected to the output end of the regulating box 304; the rotating wheel 303 is a high-elastic rubber wheel; by arranging an encoder inside the regulating box 304, the number of revolutions and angles of the workpiece can be recorded and feedback can be given at any time, thereby realizing automatic girth welding and improving welding efficiency; by arranging an encoder inside the regulating box 304, the number of revolutions and angles of the workpiece can be recorded and feedback can be given at any time, thereby realizing automatic girth welding and improving welding efficiency.

[0023] During operation, two sections of steel pipe are placed on the slide 305, and the adjusting knob 301 is turned to make the rotating wheel 303 clamp the two sections of steel pipe; the laser tracker 201 is adjusted to align with the welding position, and then the welding gun head 101 is adjusted to the welding position, and then the wire feeder 105 is started, and then the motor 302 is started, and the output end of the motor 302 rotates, and the rotation direction and rotation speed are adjusted by the adjusting box 304 and then output to the rotating wheel 303, which is recorded by the encoder, and the rotating wheel 303 is driven by the adjusting box 304 to start rotating, and the rotating wheel 303 rotates the two sections of steel pipe, and the weld between the two sections of steel pipe is continuously welded; welding During the welding process, the laser tracker 201 tracks the weld position. According to the data recorded by the encoder and the result of tracking the weld position, since the input and output speeds of the adjustment box 304 are constant, the output rotation speed of the motor 302 is adjusted, and the rotation speed of the rotating wheel 303 is adjusted, so that the two sections of steel pipes are automatically welded. When longitudinal welding is required, the connecting piece 203 is removed, and the laser tracker 201 is reinstalled with the connecting piece 203 facing upwards, and the welding gun head 101 is rotated ninety degrees counterclockwise, and the laser tracker 201 identifies the weld position, and the welding gun head 101 uses the welding wire delivered by the wire feeder 105 for welding. Specific embodiments

[0024] See also Figure 4 The conveying unit 30 at least includes a slide groove 305; a pair of partitions 312 are fixedly arranged on the inner side of the slide groove 305; a screw 308 is rotatably arranged between each of the partitions 312 and the inner end face of the slide groove 305 on the same side; each of the screws 308 is threadedly connected to a slider 310; each of the screws 308 passes through the side end face of the slide groove 305 on the corresponding side and is fixedly connected to the adjusting knob 301; the upper end of each slider 310 is fixedly connected to a bearing seat 309; each of the bearing seats 309 is fixedly connected to a motor 302 and an adjusting box 304; the output end of each motor 302 is connected to the input end of the adjusting box 304; the output end of each adjusting box 304 is fixedly connected to a rotating wheel 303; a robot track 2 307 is arranged at the linear position where the center of the slide groove 305 is located; the lower end of the slide groove 305 is slidably connected to the robot track 2 307.

[0025] See also Figure 3 , an encoder is arranged inside the regulating box 304 ; the decoder is connected to the output end of the regulating box 304 ; the rotating wheel 303 is a highly elastic rubber wheel; a servo motor is arranged inside the electric pulley 311 .

[0026] The difference from the first embodiment lies in that a screw 308 is rotatably arranged between each partition 312 and the inner end face of the slide groove 305 on the same side; each screw 308 is threadedly connected to the slider 310; each screw 308 is fixedly connected to the adjusting knob 301 after passing through the side end face of the slide groove 305 on the corresponding side; the screw 308 is a short one-way screw, replacing the two-way screw, which can adjust the welding center, better adapt to welding workpieces of different sizes, and cope with more complex welding situations.

[0027] During operation, two sections of steel pipes are placed on the slide 305, and the two knobs 301 are rotated to adjust so that the rotating wheel 303 clamps the two sections of steel pipes; the laser tracker 201 is adjusted to align with the welding position, and then the welding gun head 101 is adjusted to the welding position, and then the wire feeder 105 is started, and then the motor 302 is started, and the output end of the motor 302 rotates, and the rotation direction and rotation speed are adjusted by the adjustment box 304 and then output to the rotating wheel 303, which is recorded by the encoder, and the rotating wheel 303 is driven by the adjustment box 304 to start rotating, and the rotating wheel 303 rotates the two sections of steel pipes to continuously weld the weld between the two sections of steel pipes; During the welding process, the laser tracker 201 tracks the weld position. According to the data recorded by the encoder and the result of tracking the weld position, since the input and output speeds of the adjustment box 304 are constant, the output rotation speed of the motor 302 is adjusted, and the rotation speed of the rotating wheel 303 is adjusted, so that the two sections of steel pipes are automatically welded. When longitudinal welding is required, the connecting piece 203 is removed, and the laser tracker 201 is reinstalled with the connecting piece 203 facing upwards, and the welding gun head 101 is rotated ninety degrees counterclockwise, and the laser tracker 201 identifies the weld position, and the welding gun head 101 uses the welding wire delivered by the wire feeder 105 for welding.

[0028] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0029] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the product or system including the elements.

[0030] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A high-precision double-gun circumferential seam welding device, comprising a welding unit (10); a conveying unit (30) is provided at a lower end of one side of the welding unit (10); a tracking and identification unit (20) is detachably connected to the welding unit (10) at a position corresponding to the conveying unit (30); characterized in that: The tracking and identification unit (20) comprises a laser tracker (201), a mounting arm (202), and a connecting piece (203); the mounting arm (202) is fixedly connected to the side of the welding unit (10) close to the conveying unit (30); the end of the mounting arm (202) away from the welding unit (10) is bolted to the connecting piece (203); the lower end of the connecting piece (203) is bolted to the upper end of the laser tracker (201); the connecting piece (203) is an aluminum alloy connecting piece with both ends forming a ninety-degree angle.

2. A high-precision double-gun circumferential seam welding equipment according to claim 1, characterized in that: The welding unit (10) comprises at least a bracket (107); the lower end of the bracket (107) is slidably connected to a base (108); the bracket (107) is provided with four fixing holes (104) at equal intervals in a vertical direction; one of the fixing holes (104) is bolted to a beam fixing frame (106); the beam fixing frame (106) is slidably connected to a beam (103); two pairs of clamping pulleys (109) are fixedly arranged at positions of the beam fixing frame (106) corresponding to the bracket (107); the clamping pulleys (109) abut against upper and lower end surfaces of the beam (103); the rear end surface of the beam (103) and the front end of the beam fixing frame (106) are fixed by bolts; the side of the beam (103) away from the bracket (107) is fixedly connected to a welding gun machine (102); the side of the welding gun machine (102) away from the bracket (107) is rotatably connected to a welding gun head (101); a wire feeder (105) is fixedly arranged on one side of the base (108).

3. A high-precision double-gun circumferential seam welding equipment according to claim 2, characterized in that: The conveying unit (30) at least comprises a slide groove (305); the inner side of the slide groove (305) is rotatably connected to a screw rod (308); the screw rod (308) is threadedly connected to a pair of sliders (310); one end of the screw rod (308) passes through the slide groove (305) and is fixedly connected to the adjustment knob (301); the outer side of the slide groove (305) is fixedly connected to two pairs of electric pulleys (311); each pulley of the electric pulley (311) is rotatably connected to the robot track (306); each slider (31 0) The upper end is fixedly connected to the bearing seat (309); each of the bearing seats (309) is fixedly connected to the motor (302) and the adjustment box (304); the output end of each of the motors (302) is connected to the input end of the adjustment box (304); the output end of each of the adjustment boxes (304) is fixedly connected to the rotating wheel (303); the robot track 2 (307) is fixedly arranged at the linear position where the center of the slide groove 1 (305) is located, and the lower end of the slide groove 1 (305) is slidably connected to the robot track 2 (307).

4. A high-precision double-gun circumferential seam welding equipment according to claim 2, characterized in that: The conveying unit (30) at least comprises a slide groove (305); a pair of partitions (312) are fixedly arranged inside the slide groove (305); a screw rod (308) is rotatably arranged between each of the partitions (312) and the inner end surface of the slide groove (305) on the same side; each of the screw rods (308) is threadedly connected to the slider (310); each of the screw rods (308) passes through the side end surface of the slide groove (305) on the corresponding side and is fixedly connected to the adjusting knob (301); the upper end of each of the sliders (310) The bearing seat (309) is fixedly connected; each of the bearing seats (309) is fixedly connected to the motor (302) and the regulating box (304); the output end of each of the motors (302) is connected to the input end of the regulating box (304); the output end of each of the regulating boxes (304) is fixedly connected to the rotating wheel (303); a robot track (307) is arranged at the linear position where the center of the slide groove (305) is located; and the lower end of the slide groove (305) is slidably connected to the robot track (307).

5. A high-precision double-gun circumferential seam welding equipment according to claim 3 or 4, characterized in that: The rotating wheel (303) is a highly elastic rubber wheel.

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