Intelligent laser cutting and welding system for pressure vessel manufacturing

Abstract

The invention discloses an intelligent laser cutting and welding system for manufacturing a pressure vessel, which belongs to the technical field of laser cutting and comprises a main body mechanism for laser welding and laser cutting of a cylindrical iron plate. The main body mechanism is provided with a curling mechanism used for curling an iron plate into a barrel shape and a tensioning mechanism used for tensioning the iron plate formed into the barrel. The curling mechanism can bend an iron plate or a steel plate into a cylindrical shape to serve as the side wall of the pressure container, and the distance between the curling roller and the auxiliary roller can be adjusted to meet different machining requirements; the main body mechanism is matched with the curling mechanism, so that an iron plate or a steel plate curled into a barrel shape can be subjected to laser welding, the side wall of the barrel-shaped pressure container is formed, and the machining effect is good; the main body mechanism is matched with the tensioning mechanism to perform laser cutting on the top and the bottom of the cylindrical iron plate, so that smooth surfaces of the top and the bottom of the cylindrical iron plate are guaranteed, and subsequent welding of the bottom and the top of a container is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting technology, and in particular to a laser intelligent cutting and welding system for pressure vessel manufacturing. Background Art

[0002] A pressure vessel is a sealed device capable of withstanding internal or external pressure. It is widely used in the petroleum, chemical, energy, pharmaceutical, and food industries for the storage or transportation of gases, liquids, and liquefied gases. Due to their potential high risk, the design, manufacture, inspection, and use of pressure vessels are subject to strict national and international standards and specifications. Pressure vessels, such as cylindrical containers, can be made by bending iron or steel plates into a cylindrical shape, welding the joints, and then welding the bottom and top to the cylinder bottom and top. However, existing laser cutting and welding devices for pressure vessels are generally unable to automatically form iron plates, nor can they cut the top and bottom of the formed cylindrical container flat, which is not conducive to subsequent processing. Summary of the Invention

[0003] In response to the above technical problems, the present invention adopts the following technical solution: a laser intelligent cutting and welding system for pressure vessel manufacturing, comprising a main mechanism for laser welding and laser cutting of a tube-formed iron plate, the main mechanism comprising a frame, the main mechanism being provided with a curling mechanism for curling the iron plate into a tube shape and a tensioning mechanism for tensioning the tube-formed iron plate; The curling mechanism comprises a bottom rail frame fixedly mounted on the frame, a motor frame fixedly mounted on the bottom rail frame, a bottom motor fixedly mounted on the motor frame, and two reel modules are arranged on the bottom rail frame.

[0004] Furthermore, the main mechanism includes a top slide rail fixedly installed on the top of the frame, a top screw is rotatably installed on the frame, a top motor is fixedly installed on the frame, the motor shaft of the top motor is fixedly installed on the top screw, a laser frame is slidably installed on the top slide rail, and the laser frame and the top screw form a threaded transmission.

[0005] Furthermore, a lifting motor is fixedly installed on the laser frame, a lifting gear is fixedly installed on the motor shaft of the lifting motor, a lifting frame is slidably installed on the laser frame, a lifting rack is fixedly installed on the lifting frame, the lifting rack is engaged with the lifting gear, and a laser welding head and a laser cutting head are fixedly installed on the lifting frame.

[0006] The top motor drives the top screw to rotate, driving the laser frame to slide along the top slide rail. The lifting motor drives the lifting gear to rotate, and drives the lifting frame to rise and fall relative to the laser frame through the lifting rack, thereby driving the laser welding head and laser cutting head to rise and fall, and then adjusting the height of the laser welding head and laser cutting head.

[0007] Furthermore, the reel module includes a sliding frame slidably mounted on the bottom rail frame, a bottom screw is rotatably mounted on the bottom rail frame, a bottom motor drives the bottom screw to rotate through gear transmission, the sliding frame and the bottom screw form a threaded transmission, two auxiliary rollers are rotatably mounted on the sliding frame, a column is fixedly mounted on the sliding frame, a lifting block is slidably mounted on the column, a winding motor is fixedly mounted on the lifting block, a winding roller is rotatably mounted on the lifting block, and the winding roller is fixedly mounted on the motor shaft of the winding motor.

[0008] Furthermore, a vertical screw is fixedly installed under the lifting block, a worm wheel is rotatably installed on the sliding frame, an internal thread is provided in the worm wheel, and the worm wheel and the vertical screw rod form a threaded transmission, an adjusting motor is fixedly installed on the sliding frame, a worm is fixedly installed on the motor shaft of the adjusting motor, and the worm is engaged with the worm wheel.

[0009] Furthermore, the winding rollers of the two reel modules are butted against each other, and the auxiliary rollers are butted against each other.

[0010] Adjusting the rotation of the motor can drive the worm to rotate, thereby driving the worm wheel to rotate, thereby driving the vertical screw and the lifting block to rise and fall along the column, realizing the adjustment of the height of the lifting block and the curling roller, thereby adjusting the diameter of the iron plate to be curled into a cylinder. When in use, the iron plate is placed between the curling roller and the two auxiliary rollers, and the curling motor drives the curling roller to rotate, thereby bending the iron plate through the curling roller, and finally bending the iron plate into a cylinder to be used as the side of the pressure vessel. The rotation of the curling roller can make the weld of the cylindrical iron plate reach directly above, and then cooperate with the sliding of the laser frame along the top slide rail to weld the weld of the cylindrical iron plate through the laser welding head to emit laser.

[0011] When the welding of the cylindrical iron plate is completed, the inner wall of the iron plate is tensioned by the tensioning mechanism, and then the motor is adjusted to rotate so that the lifting block rises a small distance, so that the winding roller and the auxiliary roller no longer clamp the iron plate. Then the bottom motor rotates and drives the two bottom screws to rotate through the gear transmission, thereby driving the two sliding frames to move outward at the same time, so that the auxiliary rollers and winding rollers of the two reel modules are separated from each other, and finally the winding rollers and auxiliary rollers leave the iron plate.

[0012] Furthermore, the tensioning mechanism includes a rotating column rotatably mounted on a frame, a rotating motor fixedly mounted on the frame, the rotating motor drives the rotating column to rotate through a belt transmission, a supporting motor fixedly mounted on the rotating column, a supporting screw fixedly mounted on the motor shaft of the supporting motor, and the supporting screw rotatably mounted with the rotating column.

[0013] Furthermore, an outer fixing ring and an inner fixing ring are fixedly installed on the rotating column, three outer rotating rods are rotatably installed on the outer fixing ring, a support arm is rotatably installed on the outer rotating rod, three inner rotating rods are rotatably installed on the inner fixing ring, an inner thread block is rotatably installed on the support screw rod through a thread, three short rods are rotatably installed on the inner thread block, the short rods are rotatably installed with the outer rotating rods, and the inner rotating rods are rotatably installed with the support arms.

[0014] When the welding of the cylindrical iron plate is completed, the support motor rotates to drive the support screw to rotate, thereby driving the internal threaded block to move toward the outer fixed ring, thereby driving the outer rotating rod to rotate through the short rod, and the outer rotating rod drives the support arm to rotate, and the support arm drives the inner rotating rod to rotate around the inner fixed ring. The outer rotating rod and the inner rotating rod remain parallel, and the support arm and the rotating column remain parallel. The inner wall of the iron plate is tensioned through the support arm, and then the rotating motor drives the rotating column to rotate through the belt drive, and drives the iron plate to rotate together through the support arm, and cooperates with the laser cutting head to emit laser to cut and polish the two ends of the cylindrical iron plate, so as to facilitate the subsequent welding of the bottom and top of the cylindrical iron plate.

[0015] Compared with the prior art, the present invention has the following advantages: (1) the curling mechanism provided in the present invention can bend the iron plate or steel plate into a cylindrical shape to serve as the side wall of the pressure vessel, and the distance between the curling roller and the auxiliary roller can be adjusted to meet different processing requirements; (2) the main mechanism provided in the present invention cooperates with the curling mechanism to perform laser welding on the iron plate or steel plate curled into a cylindrical shape to form the side wall of the cylindrical pressure vessel, and the processing effect is good; (3) the main mechanism provided in the present invention cooperates with the tensioning mechanism to perform laser cutting on the top and bottom of the cylindrical iron plate to ensure that the top and bottom surfaces of the cylindrical iron plate are smooth, which is convenient for subsequent welding of the bottom and top of the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of the present invention (curled state); Figure 2 Schematic diagram of the overall structure of the present invention (cutting state); Figure 3 The main structure of the present invention is shown in FIG. Figure 1 ; Figure 4 The main structure of the present invention is shown in FIG. Figure 2 ; Figure 5 Schematic diagram of the curling mechanism structure of the present invention; Figure 6 Schematic diagram of the tensioning mechanism structure of the present invention Figure 1 ; Figure 7 Schematic diagram of the tensioning mechanism structure of the present invention Figure 2 ; Figure 8 Schematic diagram of the tensioning mechanism structure of the present invention Figure 3 .

[0017] Figure numbers: 101-frame; 102-top slide rail; 103-top motor; 104-top screw; 105-laser frame; 106-lifting frame; 107-laser welding head; 108-laser cutting head; 109-lifting motor; 110-lifting gear; 111-lifting rack; 201-bottom rail frame; 202-motor frame; 203-bottom motor; 204-bottom screw; 205-sliding frame; 206-auxiliary roller; 207- Adjusting motor; 208-worm; 209-worm wheel; 210-winding motor; 211-vertical screw; 212-lifting block; 213-vertical column; 214-winding roller; 301-rotating column; 302-rotating motor; 303-support motor; 304-outer fixing ring; 305-outer rotating rod; 306-support arm; 307-inner fixing ring; 308-inner thread block; 309-support screw; 310-short rod; 311-inner rotating rod; 4-iron plate. DETAILED DESCRIPTION

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0019] Example: Reference Figures 1-8 A laser intelligent cutting and welding system for pressure vessel manufacturing includes a main body mechanism for laser welding and laser cutting a tube-shaped iron plate 4. The main body mechanism includes a frame 101. The main body mechanism is provided with a curling mechanism for curling the iron plate 4 into a tube shape and a tensioning mechanism for tensioning the tube-shaped iron plate 4. The curling mechanism includes a bottom rail 201 fixedly mounted on the frame 101 , a motor frame 202 fixedly mounted on the bottom rail 201 , a bottom motor 203 fixedly mounted on the motor frame 202 , and two reel modules are provided on the bottom rail 201 .

[0020] like Figure 3 、 Figure 4 As shown, the main mechanism includes a top slide rail 102 fixedly mounted on the top of the frame 101, a top screw rod 104 is rotatably mounted on the frame 101, a top motor 103 is fixedly mounted on the frame 101, the motor shaft of the top motor 103 is fixedly mounted on the top screw rod 104, a laser frame 105 is slidably mounted on the top slide rail 102, and the laser frame 105 and the top screw rod 104 form a threaded transmission.

[0021] like Figure 3 、 Figure 4As shown, a lifting motor 109 is fixedly installed on the laser frame 105, a lifting gear 110 is fixedly installed on the motor shaft of the lifting motor 109, a lifting frame 106 is slidably installed on the laser frame 105, a lifting rack 111 is fixedly installed on the lifting frame 106, the lifting rack 111 is engaged with the lifting gear 110, and a laser welding head 107 and a laser cutting head 108 are fixedly installed on the lifting frame 106.

[0022] The top motor 103 drives the top screw 104 to rotate, driving the laser frame 105 to slide along the top slide rail 102. The lifting motor 109 rotates to drive the lifting gear 110 to rotate, and drives the lifting frame 106 to rise and fall relative to the laser frame 105 through the lifting rack 111, thereby driving the laser welding head 107 and the laser cutting head 108 to rise and fall, and then adjusting the height of the laser welding head 107 and the laser cutting head 108.

[0023] like Figure 5 As shown, the reel module includes a sliding frame 205 slidably mounted on the bottom rail 201, a bottom screw rod 204 is rotatably mounted on the bottom rail 201, a bottom motor 203 drives the bottom screw rod 204 to rotate through gear transmission, the sliding frame 205 and the bottom screw rod 204 form a threaded transmission, two auxiliary rollers 206 are rotatably mounted on the sliding frame 205, a column 213 is fixedly mounted on the sliding frame 205, a lifting block 212 is slidably mounted on the column 213, a winding motor 210 is fixedly mounted on the lifting block 212, a winding roller 214 is rotatably mounted on the lifting block 212, and the winding roller 214 is fixedly mounted on the motor shaft of the winding motor 210.

[0024] like Figure 5 As shown, a vertical screw rod 211 is fixedly installed below the lifting block 212, a worm gear 209 is rotatably installed on the sliding frame 205, an internal thread is provided in the worm gear 209, and the worm gear 209 and the vertical screw rod 211 form a threaded transmission, an adjusting motor 207 is fixedly installed on the sliding frame 205, and a worm 208 is fixedly installed on the motor shaft of the adjusting motor 207, and the worm 208 is engaged with the worm gear 209.

[0025] like Figure 5 As shown, the winding rollers 214 of the two reel modules are in abutment with each other, and the auxiliary rollers 206 are in abutment with each other.

[0026] The rotation of the regulating motor 207 can drive the worm 208 to rotate, thereby driving the worm wheel 209 to rotate, thereby driving the vertical screw rod 211 and the lifting block 212 to rise and fall along the column 213, thereby adjusting the height of the lifting block 212 and the curling roller 214, thereby adjusting the diameter of the iron plate 4 that needs to be curled into a cylinder. When in use, the iron plate 4 is placed between the curling roller 214 and the two auxiliary rollers 206, and the curling motor 210 drives the curling roller 214 to rotate, thereby bending the iron plate 4 through the curling roller 214, and finally bending the iron plate 4 into a cylinder to be used as the side of the pressure vessel, and the rotation of the curling roller 214 can make the weld of the cylindrical iron plate 4 reach just above, and then cooperate with the sliding of the laser frame 105 along the top slide rail 102, and the laser welding head 107 emits laser to weld the weld of the cylindrical iron plate 4.

[0027] When the welding of the cylindrical iron plate 4 is completed, the inner wall of the iron plate 4 is tensioned by the tensioning mechanism, and then the motor 207 is adjusted to rotate, so that the lifting block 212 rises a small distance, so that the winding roller 214 and the auxiliary roller 206 no longer clamp the iron plate 4, and then the bottom motor 203 rotates, and drives the two bottom screw rods 204 to rotate through the gear transmission, thereby driving the two sliding frames 205 to move outward at the same time, so that the auxiliary rollers 206 and the winding rollers 214 of the two reel modules are separated from each other, and finally the winding rollers 214 and the auxiliary rollers 206 leave the iron plate 4.

[0028] like Figure 6-Figure 8 As shown, the tensioning mechanism includes a rotating column 301 rotatably mounted on the frame 101, a rotating motor 302 is fixedly mounted on the frame 101, the rotating motor 302 drives the rotating column 301 to rotate through a belt drive, a supporting motor 303 is fixedly mounted on the rotating column 301, a supporting screw 309 is fixedly mounted on the motor shaft of the supporting motor 303, and the supporting screw 309 is rotatably mounted with the rotating column 301.

[0029] like Figure 6-Figure 8 As shown, an outer fixing ring 304 and an inner fixing ring 307 are fixedly installed on the rotating column 301, three outer rotating rods 305 are rotatably installed on the outer rotating rod 305, a support arm 306 is rotatably installed on the outer rotating rod 305, three inner rotating rods 311 are rotatably installed on the inner fixing ring 307, an inner thread block 308 is rotatably installed on the support screw rod 309 through a thread, three short rods 310 are rotatably installed on the inner thread block 308, the short rods 310 are rotatably installed with the outer rotating rod 305, and the inner rotating rod 311 is rotatably installed with the support arm 306.

[0030] When the cylindrical iron plate 4 is welded, the support motor 303 rotates to drive the support screw 309 to rotate, thereby driving the internal thread block 308 to move toward the outer fixed ring 304, thereby driving the outer rotating rod 305 to rotate through the short rod 310, and the outer rotating rod 305 drives the support arm 306 to rotate, and the support arm 306 drives the inner rotating rod 311 to rotate around the inner fixed ring 307, and the outer rotating rod 305 and the inner rotating rod 311 remain parallel, and the support arm 306 and the rotating column 301 remain parallel, and the inner wall of the iron plate 4 is tensioned by the support arm 306, and then the rotating motor 302 drives the rotating column 301 to rotate through the belt drive, and drives the iron plate 4 to rotate together through the support arm 306, and cooperates with the laser cutting head 108 to emit laser to cut and polish the two ends of the cylindrical iron plate 4, so as to facilitate the subsequent welding of the bottom and top of the cylindrical iron plate 4.

[0031] The working principle of a laser intelligent cutting and welding system for pressure vessel manufacturing disclosed in the present invention is as follows: the rotation of the regulating motor 207 can drive the worm 208 to rotate, thereby driving the worm wheel 209 to rotate, thereby driving the vertical screw rod 211 and the lifting block 212 to rise and fall along the column 213, thereby adjusting the height of the lifting block 212 and the curling roller 214, thereby adjusting the diameter of the iron plate 4 required to be curled into a cylinder. When in use, the iron plate 4 is placed between the curling roller 214 and the two auxiliary rollers 206, and the curling motor 210 drives the curling roller 214 to rotate, thereby bending the iron plate 4 through the curling roller 214, and finally bending the iron plate 4 into a cylinder to be used as the side of the pressure vessel, and the rotation of the curling roller 214 can make the weld of the cylindrical iron plate 4 reach just above, and then cooperate with the sliding of the laser frame 105 along the top slide rail 102, and the laser welding head 107 emits laser to weld the weld of the cylindrical iron plate 4. When the cylindrical iron plate 4 is welded, the support motor 303 rotates to drive the support screw 309 to rotate, thereby driving the internal thread block 308 to move toward the outer fixed ring 304, thereby driving the outer rotating rod 305 to rotate through the short rod 310, and the outer rotating rod 305 drives the support arm 306 to rotate, and the support arm 306 drives the inner rotating rod 311 to rotate around the inner fixed ring 307, and the outer rotating rod 305 and the inner rotating rod 311 remain parallel, and the support arm 306 and the rotating column 301 remain parallel, and the inner wall of the iron plate 4 is tensioned by the support arm 306, and then the rotating motor 302 drives the rotating column 301 to rotate through the belt drive, and drives the iron plate 4 to rotate together through the support arm 306, and cooperates with the laser cutting head 108 to emit laser to cut and polish the two ends of the cylindrical iron plate 4, so as to facilitate the subsequent welding of the bottom and top of the cylindrical iron plate 4. Then the motor 207 is adjusted to rotate, causing the lifting block 212 to rise a short distance, so that the curling roller 214 and the auxiliary roller 206 no longer clamp the iron plate 4, and then the bottom motor 203 rotates, driving the two bottom screw rods 204 to rotate through gear transmission, thereby driving the two sliding frames 205 to move outward at the same time, so that the auxiliary rollers 206 and curling rollers 214 of the two reel modules are separated from each other, and finally the curling rollers 214 and the auxiliary rollers 206 leave the iron plate 4.

[0032] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A laser intelligent cutting and welding system for pressure vessel manufacturing, comprising a main body mechanism for laser welding and laser cutting of a tubed iron plate (4), characterized in that: The main body mechanism comprises a frame (101), and the main body mechanism is provided with a curling mechanism for curling the iron plate (4) into a cylindrical shape and a tensioning mechanism for tensioning the cylindrical iron plate (4); The curling mechanism comprises a bottom rail (201) fixedly mounted on the frame (101), a motor frame (202) fixedly mounted on the bottom rail (201), a bottom motor (203) fixedly mounted on the motor frame (202), and two reel modules provided on the bottom rail (201).

2. The laser intelligent cutting and welding system for pressure vessel manufacturing according to claim 1, characterized in that: The main body mechanism comprises a top slide rail (102) fixedly mounted on the top of the frame (101); a top screw rod (104) rotatably mounted on the frame (101); a top motor (103) fixedly mounted on the frame (101); a motor shaft of the top motor (103) and the top screw rod (104) fixedly mounted; a laser frame (105) slidably mounted on the top slide rail (102); and a threaded transmission is formed between the laser frame (105) and the top screw rod (104).

3. The laser intelligent cutting and welding system for pressure vessel manufacturing according to claim 2, characterized in that: A lifting motor (109) is fixedly mounted on the laser frame (105), a lifting gear (110) is fixedly mounted on the motor shaft of the lifting motor (109), a lifting frame (106) is slidably mounted on the laser frame (105), a lifting rack (111) is fixedly mounted on the lifting frame (106), the lifting rack (111) is meshed with the lifting gear (110), and a laser welding head (107) and a laser cutting head (108) are fixedly mounted on the lifting frame (106).

4. The intelligent laser cutting and welding system for pressure vessel manufacturing according to claim 1, characterized in that: The reel module comprises a sliding frame (205) slidably mounted on a bottom rail frame (201); a bottom screw rod (204) is rotatably mounted on the bottom rail frame (201); a bottom motor (203) drives the bottom screw rod (204) to rotate via gear transmission; a threaded transmission is formed between the sliding frame (205) and the bottom screw rod (204); two auxiliary rollers (206) are rotatably mounted on the sliding frame (205); a column (213) is fixedly mounted on the sliding frame (205); a lifting block (212) is slidably mounted on the column (213); a winding motor (210) is fixedly mounted on the lifting block (212); a winding roller (214) is rotatably mounted on the lifting block (212); and the winding roller (214) is fixedly mounted on the motor shaft of the winding motor (210).

5. The laser intelligent cutting and welding system for pressure vessel manufacturing according to claim 4, characterized in that: A vertical screw rod (211) is fixedly installed below the lifting block (212), a worm wheel (209) is rotatably installed on the sliding frame (205), an internal thread is provided in the worm wheel (209), and the worm wheel (209) and the vertical screw rod (211) form a threaded transmission, an adjustment motor (207) is fixedly installed on the sliding frame (205), a worm (208) is fixedly installed on the motor shaft of the adjustment motor (207), and the worm (208) is meshed with the worm wheel (209).

6. The intelligent laser cutting and welding system for pressure vessel manufacturing according to claim 5, characterized in that: The winding rollers (214) of the two reel modules are butted against each other, and the auxiliary rollers (206) are butted against each other.

7. The intelligent laser cutting and welding system for pressure vessel manufacturing according to claim 1, characterized in that: The tensioning mechanism comprises a rotating column (301) rotatably mounted on a frame (101); a rotating motor (302) is fixedly mounted on the frame (101); the rotating motor (302) drives the rotating column (301) to rotate via a belt transmission; a supporting motor (303) is fixedly mounted on the rotating column (301); a supporting screw (309) is fixedly mounted on the motor shaft of the supporting motor (303); and the supporting screw (309) is rotatably mounted on the rotating column (301).

8. The laser intelligent cutting and welding system for pressure vessel manufacturing according to claim 7, characterized in that: An outer fixing ring (304) and an inner fixing ring (307) are fixedly mounted on the rotating column (301); three outer rotating rods (305) are rotatably mounted on the outer rotating rod (305); a support arm (306) is rotatably mounted on the outer rotating rod (305); three inner rotating rods (311) are rotatably mounted on the inner fixing ring (307); an inner thread block (308) is rotatably mounted on the support screw rod (309) through a thread; three short rods (310) are rotatably mounted on the inner thread block (308); the short rods (310) are rotatably mounted on the outer rotating rods (305); and the inner rotating rods (311) are rotatably mounted on the support arm (306).

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