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CN-121989056-A - Production line for manufacturing titanium alloy continuous pipe

CN121989056ACN 121989056 ACN121989056 ACN 121989056ACN-121989056-A

Abstract

The invention belongs to the technical field of pipeline welding production lines, and particularly relates to a production line for a titanium alloy continuous pipe, which comprises a connection welding station and a pipe seam welding station which are sequentially arranged, wherein a punching mechanism and a connection welding mechanism which are arranged at the connection welding station can alternately move to a titanium alloy belt, the end part of the titanium alloy belt is firstly cut off and then welded, in the process, the movement of the titanium alloy belt is reduced, and the alignment of the connection position is ensured, so that the connection effect and the connection welding quality are improved. The welding power supply suitable for continuous uninterrupted welding of the ultra-long welding line is provided for the TIG welding gun and the deep-melting welding gun at the pipe seam welding station, so that when continuous uninterrupted welding of the ultra-long welding line with the distance of more than 1000-12000 m and the ultra-long time of 48-500 hours is carried out, accidental triggering of arc stopping events is reduced, secondary arc starting is required, accidental arc stopping accidents caused by external nonresistant factor interference such as accidental power failure are reduced, and welding yield is ensured.

Inventors

  • YE XIONGYUE
  • ZHONG SHAOTAO
  • LIU ZHIZHONG
  • LUO XUNQI
  • LIANG CHUNLI
  • XIE TINGJIN

Assignees

  • 广东福维德焊接股份有限公司

Dates

Publication Date
20260508
Application Date
20240123

Claims (10)

  1. 1. The production line for the titanium alloy continuous pipe is characterized by comprising a feeding station, a non-feeding detection station, a lubrication station, a connection welding station, a chamfering station, a deburring station, a forming station, a pipe seam welding station, a defect detection station, a polishing station, an annealing station, an air cooling station, a water cooling station, a sizing correction station, a cutting station, a flaw detection station, a drift diameter station, a marking station and a pipe collecting station which are sequentially arranged along the machining direction; The coiled titanium alloy strip (10) is placed at the feeding station and is used for feeding out the titanium alloy strip (10); the device comprises a blanking detection station, a tube seam welding station, a laser cutting gun, a heating coil and a temperature sensor, wherein the blanking detection station is used for detecting the existence of a titanium alloy belt (10) at the current position, the lubrication station is used for filling lubricating liquid on the titanium alloy belt (10), the connection welding station is used for welding the tail end of the titanium alloy belt (10) with the head end of another titanium alloy belt (10), the chamfering station is provided with the laser cutting gun for cutting the edge of the titanium alloy belt (10) in the width direction to form a welding groove, the deburring station is provided with a plurality of scrapers for scraping burrs on the edge of the titanium alloy belt (10), the forming station is provided with a plurality of groove wheel sets for bending the titanium alloy belt (10) into a titanium alloy tube, the tube seam welding station is provided with a TIG welding gun and a deep-melting welding gun in sequence, the tube seam welding joint of the titanium alloy tube is connected by using two welding guns, the defect detection station is provided with the laser instrument for defect detection, the grinding station is provided with a grinding wheel for grinding the welded seam of the tube by the grinding wheel, the annealing station is provided with the heating coil and the temperature sensor for forming the welding groove, the titanium alloy tube is cut by the cooling roller and the cooling roller is provided with the cooling roller for cooling roller and the cooling roller for cooling the cooling roller by using the cooling roller, the titanium alloy pipe is cut according to the length of a disc of titanium alloy pipe, the flaw detection station is provided with a conveying roller and a laser flaw detector so as to detect flaws by the laser flaw detector in the conveying process of the titanium alloy pipe section, the marking station is provided with a printing laser head so as to carry out laser etching on the outer surface of the titanium alloy pipe section, and the pipe receiving station is used for collecting the titanium alloy pipe section.
  2. 2. The production line for the titanium alloy continuous pipe production according to claim 1, wherein a connection welding mechanism (7) is arranged at the connection welding station, the connection welding mechanism (7) comprises a vertical telescopic module (71), a horizontal telescopic module (72), a welding gun seat (73), a welding gun head (74) and a welding table (75), the vertical telescopic module (71) is vertically arranged and can control the horizontal telescopic module (72) to move up and down, the horizontal telescopic module (72) is vertically arranged along the titanium alloy strip (10) and can control the welding gun head (74) to move horizontally along the width direction of the titanium alloy strip (10), the welding gun head (74) is installed on a front-back translation module (76) through the welding gun seat (73), and the front-back translation module (76) is vertically installed on the horizontal telescopic module (72).
  3. 3. The production line for the continuous titanium alloy pipe production according to claim 2, wherein a punching mechanism (4) is further arranged at the connection welding station, the punching mechanism (4) is used for cutting the tail end of the current titanium alloy belt (10) and the head end of the other roll of titanium alloy belt (10) so as to facilitate connection welding of the two, and the punching mechanism (4) and the connection welding mechanism (7) are respectively arranged on a movable rail car body (2) and can alternately move to the titanium alloy belt (10).
  4. 4. A production line for a titanium alloy continuous pipe according to claim 3 is characterized in that a punching lifting table (5) is arranged above a corresponding rail car body (2) of a punching mechanism (4), a lifting control screw (51) is arranged between the punching lifting table (5) and the corresponding rail car body (2), lifting of the punching lifting table (5) is controlled by the lifting control screw (51), two L-shaped swinging seats (3) are rotatably connected to a vertical plate of the punching lifting table (5), the swinging seats (3) are respectively provided with the punching mechanism (4), and the punching mechanism (4) can deflect along with rotation of the swinging seats (3) so as to form multi-angle slope surfaces which are convenient to weld at the end parts of a titanium alloy belt (10).
  5. 5. The production line for the continuous tube of the titanium alloy according to claim 4, wherein the punching mechanism (4) comprises a punching hydraulic cylinder, a cutter holder (41) and a blade (42), the blade (42) is arranged on a piston rod of the punching hydraulic cylinder through the cutter holder (41), a punching cutter holder (6) is arranged below the punching mechanism (4), the punching cutter holder (6) is arranged on the swinging seat (3) and rotates along with the swinging seat, and the punching cutter holder (6) is used for forming shearing force by matching with the blade (42).
  6. 6. The production line for producing a continuous tube of titanium alloy according to claim 5, wherein the punching tool holder (6) comprises a rotating rail (61), a spring (62), a sliding bar (63) and a U-shaped seat (64), wherein the sliding bar (63) is slidably arranged on the inner side of the U-shaped seat (64), the rotating rail (61) is rotatably connected to two ends of the sliding bar (63), when the sliding bar (63) descends, the opening of the U-shaped seat (64) pushes the rotating rail (61) to enable the rotating rail (61) to rotate to the vertical direction and be abutted against the inner wall of the U-shaped seat (64), rail grooves are formed on the opposite inner sides of the two rotating rails (61), and in the process of upward rotation of the rotating rail (61), the rail grooves can be meshed with the left side edge or the right side edge of a blade (42) and guide punching actions of the blade (42), and the spring (62) is arranged between the bottom of the sliding bar (63) and the inner side of the U-shaped seat (64).
  7. 7. The production line for producing a titanium alloy continuous tube according to claim 4, wherein two L-shaped swing seats (3) are arranged in parallel, swing control gears with the same size are respectively connected to the lower ends of the two swing seats (3), the two swing control gears are meshed with each other, a swing angle control motor (31) is arranged on the back side of the swing seat (3), and gears connected to a rotating shaft of the swing angle control motor (31) are meshed with the swing control gears.
  8. 8. The production line for producing a titanium alloy continuous pipe according to claim 4, wherein the die cutting mechanism (4) and the rail car body (2) of the connection welding mechanism (7) are arranged on the same rail seat (1), a horizontal rail (101) which is in sliding fit with the rail car body (2) is arranged on the rail seat (1), the horizontal rail (101) is perpendicular to the conveying direction of the titanium alloy belt (10), a rack is further arranged on the rail seat (1), a traveling motor is arranged inside the rail car body (2), and a traveling gear is connected to a rotating shaft of the traveling motor and meshed with the rack.
  9. 9. The production line for manufacturing a titanium alloy continuous tube according to one of claims 1 to 8, characterized in that a rear driving roller group (8), a front driving roller group (11) and a tension control mechanism (9) are arranged at the connection welding station, each of the rear driving roller group (8) and the front driving roller group (11) comprises two driving rollers, a titanium alloy strip (10) passes through the two driving rollers and is controlled by the driving rollers to convey the titanium alloy strip (10) forwards or backwards, the tension control mechanism (9) comprises a movable frame (91), a rotation control motor (92), a rotating rod (93) and end guide wheels (94), the rotating rods (93) are provided, the middle part of each rotating rod (93) is connected with the movable frame (91) in a rotating way and is controlled by the rotation control motor (92), end guide wheels (94) are arranged at two ends of the rotating rod (93), and the titanium alloy strip (10) passes through each end guide wheel (94) in an S shape to compensate the distance moved by the titanium alloy strip (10) of the opening groove station and the station behind the connection welding station.
  10. 10. The production line for manufacturing a titanium alloy continuous pipe according to any one of claims 1 to 8, wherein the TIG welding gun and the deep-melting welding gun are respectively provided with a welding power source, the welding power source comprises a welding power source control module, a control switch module, a high-frequency arcing module, a current balancing module, a first single-pole double-throw switch, a second single-pole double-throw switch, an on-use double-way driving module, a standby double-way driving module, an on-use double-way IGBT module, a standby double-way IGBT module, a power source output negative electrode, a power source output positive electrode and an operation state feedback module, wherein the power source output negative electrode is used for connecting a welding gun head (74), and the power source output positive electrode is used for connecting a workpiece to be welded; The first output end of the welding power supply control module is connected with the controlled end of the control switch module, the second output end of the welding power supply control module is connected with the first input end of the current balance module, the third output end of the welding power supply control module is respectively connected with the controlled ends of the first single-pole double-throw switch and the second single-pole double-throw switch, the control switch module is connected with the high-frequency arcing module, and the output end of the high-frequency arcing module is connected with the power supply output cathode; The first PWM pulse signal output end of the current balance module is connected with the common end of the first single-pole double-throw switch, the second PWM pulse signal output end of the current balance module is connected with the common end of the second single-pole double-throw switch, the normally closed end of the first single-pole double-throw switch is connected with the input end of the first path current driving unit in the using double-path driving module, the output end of the first path current driving unit in the using double-path driving module is connected with the input end of the first path IGBT unit in the using double-path IGBT module, the normally open end of the first single-pole double-throw switch is connected with the input end of the first path current driving unit in the standby double-path driving module, the output end of the first path current driving unit in the standby double-path driving module is connected with the input end of the first path IGBT unit in the standby double-path driving module, the output end of the second normally closed end of the second single-pole double-throw switch is connected with the input end of the first path IGBT unit in the standby double-path driving module, the normally open end of the second single-pole double-throw switch is connected with the input end of the first path IGBT unit in the standby double-path driving module, the output end of the second IGBT unit in the in-use double-path IGBT module and the output end of the second IGBT unit in the standby double-path IGBT module are respectively connected with the power supply output anode; the output end of the running state feedback module is connected with the input end of the welding power supply control module; The welding power supply control module is used for executing starting/stopping actions on the high-frequency arcing module through the control switch module according to welding control time sequence data, and outputting excitation control signals to the current balance module so as to enable the current balance module to output two paths of balanced PWM pulse signals through two paths of current constant-frequency PWM pulse generator circuits which are connected in a master-slave mode and run in parallel, and further enable the in-use double-path driving module and the in-use double-path IGBT module to output direct current and to be overlapped with high-frequency pulse high-voltage signals generated by the high-frequency arcing module to be input into a welding gun; And the welding power supply control module is also used for periodically extracting and processing the real-time operation state data from the operation state feedback module to obtain multi-dimensional operation state characteristics after successful arcing, then guiding the multi-dimensional operation state characteristics into an arc stopping event occurrence prediction model which is based on a machine learning algorithm and is trained in advance, outputting a probability value of the arc stopping event when the next period is finished, and finally controlling a public end corresponding to the conduction of the first single-pole double-throw switch and a normally open end and a public end corresponding to the cut-off of the first single-pole double-throw switch and a normally closed end when the probability value is judged to be more than or equal to a preset threshold value, and controlling a public end corresponding to the conduction of the second single-pole double-throw switch and the normally open end and the public end corresponding to the cut-off of the second single-pole double-throw switch so as to enable the standby double-way driving module and the standby double-way IGBT module to output the direct current.

Description

Production line for manufacturing titanium alloy continuous pipe Technical Field The invention belongs to the technical field of pipeline welding production lines, and particularly relates to a production line for a titanium alloy continuous pipe. Background Titanium alloy welding is a difficult point of traditional welding, and continuous and uninterrupted welding with the length of more than 1000-12000 meters is carried out, which means that the continuous and uninterrupted welding is carried out for 48-500 hours, and the titanium alloy welding of an ultra-long-time ultra-long welding seam is unprecedented in China. Firstly, the raw materials of the titanium alloy are often in a coiled belt structure with a specific length, and in order to realize ultra-long welding, welding connection of different titanium alloy belts is required to be ensured. In addition, external unavoidable factors such as unexpected power failure and the like can cause unexpected arc stopping accidents and influence welding yield. For this purpose, it is necessary to design a production line structure to solve one or both of the above-mentioned difficulties. Disclosure of Invention In order to solve the problem of welding connection of a titanium alloy belt in a titanium alloy continuous tube manufacturing tube in the prior art, the scheme provides a production line for manufacturing the titanium alloy continuous tube. The technical scheme adopted by the invention is as follows: The production line for the titanium alloy continuous pipe comprises a feeding station, a non-material detection station, a lubrication station, a connection welding station, a beveling station, a deburring station, a forming station, a pipe seam welding station, a defect detection station, a polishing station, an annealing station, an air cooling station, a water cooling station, a sizing correction station, a cutting station, a flaw detection station, a drift diameter station, a marking station and a pipe collecting station which are sequentially arranged along the machining direction; The method comprises the steps of placing a coiled titanium alloy strip at a feeding station and sending out the titanium alloy strip, detecting whether the titanium alloy strip is at the current position or not by the aid of a material-free detection station, filling lubricating liquid on the titanium alloy strip by the aid of a lubrication station, connecting the tail end of the titanium alloy strip with the head end of another coil of the titanium alloy strip by the aid of a connection welding station, arranging a laser cutting gun at a beveling station for cutting edges of the titanium alloy strip in the width direction of the titanium alloy strip to form a welding groove, arranging a plurality of scrapers at a deburring station for scraping burrs on the edges of the titanium alloy strip, arranging a plurality of groove wheel sets at a forming station for bending the titanium alloy strip into a titanium alloy tube, arranging a TIG welding gun and a deep-melting welding gun at a tube seam welding station in sequence, conducting defect detection by the aid of two welding guns, arranging a grinding wheel to polish the tube seam by the aid of a grinding wheel, arranging a heating coil and a temperature sensor at the annealing station for cutting the titanium alloy tube in a cooling roller, conducting defect detection by means of a cooling roller, arranging a cooling roller at a cooling roller, conducting defect detection station for the titanium alloy tube diameter detection by means of the aid of the cooling roller, and conducting defect detection by means of the aid of a cooling roller, arranging a cooling roller at the cooling roller station, and the pipe collecting station is used for collecting the titanium alloy pipe section. As an alternative or supplement to the production line, a connection welding mechanism is arranged at the connection welding station and comprises a vertical telescopic module, a horizontal telescopic module, a welding gun seat, a welding gun head and a welding table, wherein the vertical telescopic module is vertically arranged and can control the horizontal telescopic module to move up and down, the horizontal telescopic module is vertically arranged along the titanium alloy belt and can control the welding gun head to move horizontally along the width direction of the titanium alloy belt, the welding gun head is arranged on the front-back translation module through the welding gun seat, and the front-back translation module is vertically arranged on the horizontal telescopic module. As an alternative or supplement of the production line, a punching mechanism is further arranged at the connection welding station and used for cutting off the tail end of the current titanium alloy strip and the head end of the other roll of titanium alloy strip so as to facilitate connection welding of the two, and the punching mechanism and the connection welding