CN103551728B - Accurately can control the welder of agitating friction welding circumferential weld quality - Google Patents

Abstract

A welding device capable of precisely controlling the quality of friction stir welding circumferential welds is characterized in that it is mainly composed of a welding device and a correction device, and the welding device includes a base (1), a column (2), a beam (3), Spindle box (4), cylindrical workbench (5), manipulator (6), motor (7) and stirring head (8), each side of the base (1) is provided with a column (2), and the beam ( The two ends of 3) are respectively installed on two columns (2) and can be installed along the columns (2); the headstock (4) is installed on the beam (3), the output of the mixing head (8) and the headstock (4) The shafts are connected, and the welding preheating nozzle connected to the liquefied gas workstation (13) is installed on the headstock (4), and the two workpieces to be welded are respectively clamped by the corresponding manipulators (6); the correction device is mainly composed of a correction Main shaft box (19), correction tup (20), correction cylinder table (21) and correction motor (22) form. The invention can realize the coaxiality of the circumferential weld seam, ensure the welding quality of the weld seam, and improve the welding efficiency of the circumferential weld seam.

Description

Welding device capable of precisely controlling the quality of friction stir welding circumferential welds

technical field

The invention relates to a welding device, especially a friction welding for welding circumferential welds with different diameters, which can realize the coaxiality of the circumferential welds, ensure the welding quality of the welds, and improve the welding efficiency of the circumferential welds The utility model relates to a welding device, specifically a welding device capable of precisely controlling the quality of friction stir welding circumferential welds.

Background technique

The traditional welding method is more convenient to weld the cylindrical structure, but the welding quality cannot be guaranteed. At present, there are many welded parts for cylinders in the machinery market, such as boiler bodies, rocket launchers, missile tubes and other workpieces. In order to obtain high-quality cylindrical welded parts, advanced welding methods must be used, that is, the currently recognized friction stir Welding method, but friction stir welding currently has less equipment for cylindrical welding. Although there are one or two friction stir welding equipment for welding cylinders in the market, the welding equipment is heavy, the welding diameter is limited, and the circumferential weld seam is coaxial Poor, often need follow-up manual correction to ensure the circularity of the cylinder. Based on the above reasons, a precise friction stir welding circular welding seam that can be quickly welded, and the diameter of the circumferential weld seam can be changed, and can realize rapid correction of the circumference of the weld seam, and can realize efficient welding and efficient correction is designed. Welding installations for weld seams are a priority.

Contents of the invention

The purpose of the present invention is to aim at the problems of low quality and low efficiency of the existing circumferential welding, and to design a kind of friction stir welding circumferential weld which can not only ensure the efficiency of circumferential weld welding but also improve the welding quality of circumferential weld. Quality welding setup.

Technical scheme of the present invention is:

A welding device capable of precisely controlling the quality of friction stir welding circumferential welds is characterized in that it is mainly composed of a welding device and a correction device, and the welding device includes a base 1, a column 2, a beam 3, a headstock 4, and a cylinder Workbench 5, manipulator 6, motor 7 and stirring head 8, a column 2 is respectively arranged on both sides of the base 1, and the two ends of the beam 3 are respectively installed on the two columns 2 and can go up and down along the guide rails on the column 2 Movement; the spindle box 4 is installed on the beam 3 and can move horizontally along the guide rail on the beam 3, the stirring head 8 is connected with the output shaft of the spindle box 4 and friction welding is carried out under the drive of the output shaft, the spindle box 4 is installed with The welding preheating nozzle is used to preheat the front end of the welding workpiece by igniting it during welding so as to improve the quality of the weld seam. The nozzle is connected to the liquefied gas workstation 13 through a hose 14; Be installed on the corresponding column 2 and be driven by motor 7; Described straightening device mainly is made up of straightening main shaft box 19, straightening tup 20, straightening cylinder table 21 and straightening motor 22, and the cylinder workpiece after welding is installed on The straightening cylinder table 21 is driven by the straightening motor 22. The straightening spindle box 19 is installed on the upper part of the straightening cylindrical worktable 21. The straightening hammerhead 20 is driven by the straightening spindle box 19 to perform hammering correction on the welded part. Correction gas nozzles are installed at the position matched with the correction hammer head 20 on 19 so that the gas in the correction gas nozzles is ignited to heat the weld seam during the working process of the correction hammer head to improve the plasticity and ensure the hammering quality. The nozzle is connected with the liquefied gas workstation 13 through the air pipe 15 .

The base 1 and the column 2 are integral structural parts.

The position of the beam 3 on the column 2 is detected and fed back to the controller 9 through the sensor 12 , and the controller controls the position of the beam 3 on the column 2 .

The position of the headstock 4 on the beam 3 is detected and fed back to the controller 9 through the sensor 11 , and the controller controls the position of the beam 3 on the beam 3 .

The sensor 23 for detecting and controlling the striking frequency of the correcting hammer head 20 is installed on the correcting headstock 19 .

The front end mechanical claw of the manipulator 6 is mainly composed of the manipulator long pin 6-1, the manipulator short pin 6-2 and the stopper 6-3; the cylinder workbench 5 is mainly composed of the cylinder workbench side plate 5- 1. The small hole 5-2 is composed of the cylinder body 5-3. The number of the small hole 5-2 is the same as the number of the front-end mechanical claws of the manipulator 6, and is related to the diameter of the welding cylinder. When the diameter is large, the small hole If there are more mechanical claws, the diameter is smaller, and vice versa. When the cylindrical workbench 5 is put in place, the long pin 6-1 of the manipulator is inserted into the small hole 5-2, and then the manipulator is stretched out through the hydraulic system workstation 16 and the oil pipe 17. Make the short pin 6-2 perpendicular to the mechanical short pin 6-2 by rotating the stopper 6-3, and finally shrink the short pin 6-2 of the manipulator to the long pin 6-1 of the manipulator, and the stopper 6-3 will be firmly pasted The side plate 5-1 of the tight cylinder workbench plays the role of fixing the cylinder workbench 5; the rotation speed of the cylinder workbench 5 can be realized by controlling the rotation speed of the motor 7 during welding, and the welding workpiece suit is positioned on the cylinder workbench 5 and synchronized Rotate to achieve circumferential welding.

The correction cylindrical workbench 21 is mainly composed of a cylinder body 21-1, a mandrel 21-2, a shaft coupling 21-3, and a hydraulic column 21-4 (the number of which is related to the length of the welding cylinder). When the workpiece is installed on the straightening cylinder workbench 21, one end of the mandrel 21-2 is connected with the hydraulic system workstation 16 through the oil pipe 18 and hydraulic oil is added to each hydraulic column 21-4 to ensure that each hydraulic column 21 -4 The height of the rise is consistent, which can ensure the circularity of the welding cylinder; in addition, one end of the mandrel 21-2 is connected with the coupling 21-3, and one end of the coupling 21-3 is connected with the straightening motor 22, and the straightening motor is controlled 22 rotating speeds can control the rotating speed of correcting cylinder workbench 21.

Beneficial effects of the present invention:

The invention can realize high-efficiency welding and high-efficiency correction of precise friction stir welding circumferential weld seam welding. The invention is mainly aimed at the welding of circumferential cylinders, and is a welding equipment with strong applicability. Therefore, this equipment has a wide range of applications.

Description of drawings

Fig. 1 is a schematic diagram of the composition and structure of the welding device system of the present invention.

Fig. 2 is a schematic structural view of the cylindrical workbench of the present invention.

Fig. 3 is a structural schematic diagram of the manipulator of the present invention.

Fig. 4 is a schematic structural view of the correcting cylindrical workbench of the present invention.

In the figure: 1 is the base, 2 is the column, 3 is the beam, 4 is the spindle box, 5 is the cylindrical workbench, 6 is the manipulator, 7 is the motor, 8 is the mixing head, 9 is the controller, 10 is the computer, 11 12 is the sensor, 13 is the liquefied gas workstation, 14 is the hose, 15 is the air pipe, 16 is the hydraulic system workstation, 17 is the oil pipe, 18 is the oil pipe, 19 is the correction headstock, 20 is the correction hammer, 21 is Correction cylinder workbench, 22 are correction motors, and 23 are sensors.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1-4.

A welding device capable of precisely controlling the quality of friction stir welding circumferential welds, which includes a welding device and a straightening device, the left side of Figure 1 is the welding device, and the right side is the straightening device. The welding device comprises a base 1, a column 2, a beam 3, a headstock 4, a cylindrical workbench 5, a manipulator 6, a motor 7 and a stirring head 8, and a column 2 and a beam are respectively arranged on both sides of the base 1. The two ends of 3 are respectively installed on two columns 2 and can move up and down along the guide rails on the column 2; The output shaft is connected and friction welding is carried out under the drive of the output shaft. The headstock 4 is equipped with a welding preheating nozzle which is ignited during welding to preheat the front end of the welding workpiece so as to improve the quality of the weld. The nozzle passes through the hose 14 and the liquefied gas The workstations 13 are connected; the two workpieces to be welded are clamped by the corresponding manipulator 6 respectively, and the manipulator 6 is installed on the corresponding column 2 and driven by the motor 7; , correcting cylindrical worktable 21 and correcting motor 22, the welded cylindrical workpiece is installed on the correcting cylindrical workbench 21 and driven by the correcting motor 22, the correcting spindle box 19 is installed on the upper part of the correcting cylindrical workbench 21, and the correcting The hammerhead 20 is driven by the correcting headstock 19 to correct the welded part by hammering. A correcting gas nozzle is installed on the correcting headstock 19 at a position matched with the correcting hammerhead 20 so as to ignite and correct the gas nozzle during the correcting hammerhead working process. The gas in the gas heats the weld seam to improve the plasticity and ensure the hammering quality. The correcting gas nozzle is connected to the liquefied gas workstation 13 through the gas pipe 15 . As shown in Figure 1.

The details are as follows:

As shown in Figure 1, the base 1 and the column 2 are manufactured as an integral part; the beam 3 is placed on the column 2, and its position on the column 2 is controlled by a sensor 12; the lower end of the spindle box 4 is equipped with a stirring head 8 for its welding function, And the headstock 4 is installed on the beam 3, its position on the beam 3 is determined by the sensor 11, the headstock 4 is equipped with a hose 14, one end of the hose 14 is connected to the liquefied gas workstation 13, and the other end is ignited butt welded during welding The front end of the workpiece is preheated to improve the quality of the weld seam. Manipulator 6 is equipped with on both sides of column 2, as shown in Figure 3, and the rotation of manipulator 6 can be realized by motor 7, and the front end mechanical claw structure of manipulator 6 is mainly made of manipulator long pin 6-1, manipulator short pin 6-2 and stopper. Block 6-3; if the 5 groups of cylindrical worktables are composed of cylindrical worktable side plate 5-1 and small holes 5-2 (the number of small holes is consistent with the number of manipulators, which is related to the diameter of the welding cylinder, and the diameter is larger. There are more small holes, more mechanical claws, and vice versa if the diameter is smaller) The cylindrical worktable body 5-3 is composed, as shown in Fig. When the cylindrical workbench 5 is placed in a certain position, the long pin 6-1 of the manipulator is stretched out through the manipulator 6 on both sides to enter the small hole 5-2, and then the short pin 6-2 of the manipulator is stretched out through the action of the hydraulic system workstation 16 and the oil pipe 17. By rotating the stopper 6-3 perpendicular to the mechanical short pin 6-2, and finally shrinking the manipulator short pin 6-2 to the manipulator long pin 6-1, the stopper 6-3 is firmly attached to the side plate 5 of the cylindrical workbench -1 plays the role of fixing the cylindrical worktable 5; during welding, the rotational speed of the cylindrical worktable 5 can be realized by controlling the rotation speed of the motor 7, and the welding workpiece is installed on the cylindrical worktable 5 to realize circumferential welding.

When the welded workpiece is removed from the cylindrical workbench 5, it is loaded onto the straightening cylindrical workbench 21 by a manipulator or robot, as shown in Figure 4, the straightening cylindrical workbench 21 is mainly composed of straightening The cylindrical workbench is composed of cylinder body 21-1, mandrel 21-2, coupling 21-3, and hydraulic column 21-4 (the number of which is related to the length of the welding cylinder). When the welding workpiece is installed on the correction cylinder workbench 21, one end of the mandrel 21-2 is connected with the hydraulic system workstation 16 and the oil pipe 18, and hydraulic oil is added to each hydraulic column 21-4 to ensure that the rising height of each hydraulic column 21-4 is consistent, which can ensure The circumference of the welding cylinder; in addition, one end of the mandrel 21-2 is connected to the coupling 21-3, and one end of the coupling 21-3 is connected to the motor 22. By controlling the speed of the motor 22, the correcting cylinder workbench 21 can be controlled. Speed, while controlling the rotation of the straightening cylinder table 21, the straightening hammer head on the straightening headstock 19 controls the hammering frequency through the sensor 23 to hit the cylindrical weld seam, and at the same time, utilizes the hose 15 to pass through the welding seam. The liquefied gas is ignited and heated to ensure that the correcting hammer head 20 has good plasticity to ensure the quality of the weld. Motor 7 of the present invention, motor 22, hydraulic system workstation 16, liquefied gas workstation 13, sensor 11, sensor 12, manipulator 6, sensor 23 are controlled by controller 9, and display control process by computer 10. Just can realize to carry out circumferential seam welding to the cylinder of different welding diameters by changing cylinder workbench 5 or changing its diameter size.

The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art.

Claims (7)

1. one kind accurately can control the welder of agitating friction welding circumferential weld quality, it is characterized in that it is primarily of welder and apparatus for correcting composition, described welder comprises base (1), column (2), crossbeam (3), main spindle box (4), cylinder workbench (5), manipulator (6), motor (7) and stirring-head (8), the both sides of described base (1) are respectively provided with a column (2), and the two ends of crossbeam (3) are arranged on two root posts (2) respectively and above also can move up and down along the guide rail on column (2), main spindle box (4) is arranged on crossbeam (3) and above also can moves horizontally along the guide rail on crossbeam (3), stirring-head (8) is connected with the output shaft of main spindle box (4) and carries out friction welding (FW) under the drive of output shaft, butt welding of lighting a fire when main spindle box (4) being provided with welding connects workpiece front end and carries out preheating so that the pre-hot nozzle of welding improving weldquality, and nozzle is connected with liquefied gas work station (13) by flexible pipe (14), two pieces workpiece to be welded is clamped by the manipulator (6) of correspondence respectively, and manipulator (6) is arranged on corresponding column (2) and goes up and driven by motor (7), described apparatus for correcting is primarily of rectification main spindle box (19), correct tup (20), correct cylinder workbench (21) and correct motor (22) composition, cylindrical workpieces after welding is arranged on to be corrected on cylinder workbench (21) and is driven by rectification motor (22), correct main spindle box (19) and be arranged on rectification cylinder workbench (21) top, correct tup (20), by rectification main spindle box (19) driving, hammering rectification is carried out to welding position, correct main spindle box (19) upper with correct position that tup (20) matches and be provided with and correct gas nozzle to light the combustion gas butt welded seam corrected in gas nozzle and heat correcting in the tup course of work, improve plasticity, ensure hammering quality, described rectification gas nozzle is connected with liquefied gas work station (13) by tracheae (15).

2. the welder that accurately can control agitating friction welding circumferential weld quality according to claim 1, is characterized in that described base (1) and column (2) are integral structure component.

3. the welder that accurately can control agitating friction welding circumferential weld quality according to claim 1, it is characterized in that the position of described crossbeam (3) on column (2) is detected by sensor (12) feeds back in controller (9), and controller controls crossbeam (3) position on column (2).

4. the welder that accurately can control agitating friction welding circumferential weld quality according to claim 1, it is characterized in that the position of described main spindle box (4) on crossbeam (3) is detected by sensor (11) feeds back in controller (9), and controller controls main spindle box (4) position on crossbeam (3).

5. the welder that accurately can control agitating friction welding circumferential weld quality according to claim 1, is characterized in that described rectification main spindle box (19) being provided with the sensor (23) that detection control corrects tup (20) beating frequency.

6. the welder that accurately can control agitating friction welding circumferential weld quality according to claim 1, is characterized in that the front end robot pawl of described manipulator (6) is had strong market potential (6-1) primarily of manipulator, the short pin of manipulator (6-2) and block (6-3) forms, described cylinder workbench (5) is primarily of cylinder workbench side plate (5-1), aperture (5-2) and cylinder workbench cylindrical shell (5-3) composition, after cylinder workbench (5) is in place, manipulator is had strong market potential (6-1) inserts in aperture (5-2), then acted on by hydraulic work system station (16) and oil pipe (17) and stretch out the short pin of manipulator (6-2) and make the short pin of itself and machinery (6-2) vertical by rotary block (6-3), the short pin of last contract hand (6-2) to manipulator is had strong market potential in (6-1), block (6-3) is just firmly adjacent to cylinder workbench side plate (5-1) and plays stationary cylinder workbench (5), just can realize cylinder workbench (5) rotating speed by controlling motor (7) rotating speed during welding, welding work pieces suit is positioned at the upper also synchronous rotary of cylinder workbench (5) and then realizes circumference soldering.

7. the welder that accurately can control agitating friction welding circumferential weld quality according to claim 1, it is characterized in that described rectification cylinder workbench (21) is primarily of cylindrical shell (21-1), axle (21-2), shaft coupling (21-3), hydraulic vertical prop (21-4) forms, when welding work pieces is contained in rectification cylinder workbench (21), axle (21-2) one end to be connected with hydraulic work system station (16) by oil pipe (18) and to be joined by hydraulic oil on each hydraulic vertical prop (21-4), guarantee that the height that each hydraulic vertical prop (21-4) rises is consistent, welding drum can be guaranteed circumferentially like this, axle (21-2) one end is connected with shaft coupling (21-3) in addition, and shaft coupling (21-3) one end is connected with rectification motor (22), by controlling to correct the rotating speed that motor (22) rotating speed can control to correct cylinder workbench (21).