Metal pipe welding device capable of adjusting clamping

Abstract

The invention discloses a clamping-adjustable metal pipe welding device, which belongs to the technical field of pipe welding, and comprises a main body mechanism for butting and welding metal pipes, and two adjusting mechanisms for adjusting the welding direction of the metal pipes are arranged on the main body mechanism; and a clamping mechanism for clamping the metal pipe is arranged on the adjusting mechanism. The arranged main body mechanism can automatically weld four butt joint faces of two metal pipes, meanwhile, the metal pipes with different splicing angles can be welded, the automation degree is high, and continuity is good; the adjusting mechanism can adjust the butt joint angle of the metal pipes, so that the device can weld the metal pipes with different postures and connection angles, and the application range is wide; the clamping mechanism can adjust the clamping position, so that the device can clamp metal pipes of different lengths, meanwhile, square pipes or round pipes of different sizes can be clamped, and use is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of pipe welding, and in particular to a metal pipe welding device with adjustable clamping. Background Art

[0002] Metal pipes refer to tubular products made of metal materials, which are widely used in various industries, construction, transportation, chemical industry, machinery, electronics and other fields. Metal pipes can be divided into many types according to the metal material, manufacturing process and purpose. Metal pipe welding devices are equipment used for connecting metal pipes, mainly used to connect the two ends of metal pipes or pipes of different shapes through welding processes. Welding devices usually vary according to the welding method, the technology used and the specific application field; the metal pipe welding devices in the prior art usually cannot adjust the clamping position and docking angle of the pipe, and have a limited scope of use. Summary of the invention

[0003] In response to the above technical problems, the technical solution adopted by the present invention is: a metal pipe welding device with adjustable clamping, including a main body mechanism for butting and welding metal pipes, the main body mechanism includes a box plate, a center column is fixedly installed on the center column, the main body mechanism is provided with two adjustment mechanisms for adjusting the welding direction of the metal pipe, the adjustment mechanism includes a rotating frame, the rotating frame is rotatably installed on the center column, an internal threaded slide is slidably installed on the rotating frame, the adjustment mechanism is provided with a clamping mechanism for clamping the metal pipe, the clamping mechanism includes a clamping frame, and the clamping frame is fixedly installed on the internal threaded slide.

[0004] Furthermore, the main mechanism includes a box body fixedly installed under the box plate, a fixed block is fixedly installed on the box plate, an inner sliding rod is slidably installed in the fixed block, a lifting plate is fixedly installed under the inner sliding rod, an inner screw rack is fixedly installed in the box body, a lifting motor is fixedly installed on the inner screw rack, a screw shaft is rotatably installed on the inner screw rack, two sections of threads in opposite directions are provided on the screw shaft, the screw shaft and the motor shaft of the lifting motor are fixedly installed, two internal threaded sliders are slidably installed on the internal screw rack, the internal threaded sliders and the threads on the screw shaft form a threaded transmission, a lifting rotating rod is rotatably installed on the internal threaded slider, and the lifting rotating rod is rotatably installed with the lifting plate.

[0005] Furthermore, a rotating motor is fixedly installed on the inner sliding rod, a motor gear is fixedly installed on the motor shaft of the rotating motor, a rotating block is rotatably installed on the inner sliding rod, a rotating gear is fixedly installed on the rotating block, the rotating gear is meshed with the motor gear, a fixed sleeve is fixedly installed on the rotating block, an inner sliding column is slidably installed in the fixed sleeve, a sliding motor is fixedly installed on the fixed sleeve, a motor wheel is fixedly installed on the motor shaft of the sliding motor, a sliding screw is rotatably installed in the fixed sleeve, a screw wheel is fixedly installed on the sliding screw, an output transmission belt is wound around the screw wheel and the motor wheel, an internal thread is provided in the inner sliding column, and a threaded transmission is formed between the inner sliding column and the sliding screw.

[0006] Furthermore, a rotating seat is rotatably mounted on the inner sliding column, a welding gun is fixedly mounted on the rotating seat, an electric cylinder is fixedly mounted on the inner sliding column, a telescopic frame is fixedly mounted on the output end of the electric cylinder, guide columns are fixedly mounted on both sides of the inner sliding column, a groove is provided on the telescopic frame, the guide column slides in the groove of the telescopic frame, a telescopic rack is fixedly mounted on the telescopic frame, a side gear is fixedly mounted on the rotating seat, and the side gear is meshed with the telescopic rack.

[0007] When the two metal pipes to be welded are clamped by the clamping mechanism, the angle between the two metal pipes is adjusted by the adjusting mechanism, and then the lifting motor rotates to drive the screw shaft to rotate, thereby driving the internal threaded slider to slide along the internal screw rack, thereby driving the lifting rotating rod to rotate, thereby driving the lifting plate and the inner sliding rod to lift and lower along the fixed block, thereby driving the welding gun to lift and lower, and the sliding motor drives the motor wheel to rotate, and drives the screw wheel and the sliding screw to rotate through the output transmission belt, and drives the inner sliding column to slide along the fixed sleeve, thereby realizing the extension and retraction of the welding gun, and the extension and retraction of the electric cylinder drives the telescopic rack to move, thereby driving the side gear, the rotating seat and the welding gun to rotate through the telescopic rack, thereby realizing the rotation of the welding gun, and the rotating electric cylinder drives the telescopic rack to move. The machine drives the motor gear to rotate, which can drive the rotating gear, rotating block and fixed sleeve to rotate, thereby driving the welding gun to flip. First, the welding gun rises to achieve the welding of the vertical welds of the two metal pipes away from the fixed block side. Then the welding gun rotates ninety degrees, and the inner sliding column moves outward relative to the fixed sleeve to achieve the welding of the horizontal welds on the top of the two metal pipes. Then the welding gun continues to rotate ninety degrees, and the inner sliding rod descends relative to the fixed block, driving the welding gun to descend, to achieve the welding of the vertical welds of the two metal pipes on the fixed block side. Then the rotating block flips 180 degrees with the fixed sleeve and the inner sliding column, and the inner sliding column expands and contracts relative to the fixed sleeve to achieve the welding of the bottom welds of the two metal pipes.

[0008] Furthermore, the adjusting mechanism includes an adjusting motor fixedly mounted on a rotating frame, an output wheel fixedly mounted on a motor shaft of the adjusting motor, an inner screw rod rotatably mounted in the rotating frame, an inner fixed plate and an outer fixed plate fixedly mounted on the rotating frame, inner and outer slide rails fixedly mounted on the outer fixed plate and the inner fixed plate, the inner threaded slide and the inner screw rod form a threaded transmission, the inner threaded slide and the inner and outer slide rails are slidably mounted, an adjusting wheel fixedly mounted on the inner screw rod, and an outer transmission belt is wrapped around the adjusting wheel and the output wheel.

[0009] Furthermore, a flexible protective cover is provided between the inner fixing plate and the inner threaded slide, and a flexible protective cover is provided between the outer fixing plate and the inner threaded slide.

[0010] Furthermore, a bottom motor is fixedly installed on the lower surface of the box plate, a bottom gear is fixedly installed on the motor shaft of the bottom motor, a bottom screw is rotatably installed on the lower surface of the box plate, a screw gear is fixedly installed on the bottom screw, the screw gear is meshed with the bottom gear, a bottom guide column is fixedly installed on the lower surface of the box plate, a bottom sliding block is slidably installed on the bottom guide column, a sliding groove is provided on the bottom sliding block, a bottom boss is fixedly installed on the bottom of the rotating frame, the bottom boss slides in the sliding groove of the bottom sliding block, two arc grooves are provided on the box plate, and the bottom boss slides in the arc grooves.

[0011] The adjusting motor drives the output wheel to rotate, and drives the adjusting wheel and the inner screw to rotate through the outer transmission belt, thereby driving the inner threaded slide to slide along the rotating frame, so as to adjust the position of the clamping mechanism, which is convenient for clamping metal pipes of different lengths. The flexible protective cover is used to prevent welding slag generated during welding from falling into the box body. The bottom motor drives the bottom gear to rotate, thereby driving the screw gear and the bottom screw to rotate, thereby driving the bottom sliding block to slide along the bottom guide column, and driving the bottom boss and the rotating frame to move through the slide groove of the bottom sliding block, thereby driving the rotating frame to rotate around the center column, so as to adjust the welding angle of the two metal pipes.

[0012] Furthermore, the clamping mechanism includes four clamping blocks slidably mounted on the clamping frame, two clamping rollers rotatably mounted on the clamping blocks, a clamping back plate fixedly mounted on the clamping frame, a clamping rack fixedly mounted on the clamping blocks, four clamping gears rotatably mounted on the clamping frame, an action gear fixedly mounted on the clamping gears, and the clamping gears mesh with the clamping racks.

[0013] Furthermore, two clamping motors are fixedly installed on the clamping back plate, and a driving gear is fixedly installed on the motor shaft of the clamping motor. Two partial gear rings are rotatably installed on the clamping frame, and the inner partial gear rings are meshed with the action gears on the left and right sides of the clamping frame, and the outer partial gear rings are meshed with the action gears on the upper and lower sides of the clamping frame. The driving gears on the two clamping motors are respectively meshed with the action gear on the left and the action gear on the lower side.

[0014] The two metal pipes to be welded are placed between the clamping rollers respectively, and the two clamping motors rotate respectively, thereby driving the driving gear to rotate, thereby driving the action gear to rotate, thereby driving part of the gear ring to rotate, thereby driving the action gear and the clamping gear to rotate, thereby driving the clamping rack and the clamping block to slide, thereby driving the clamping block and the clamping roller to move inward, and the metal pipe is clamped by the clamping roller.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The main mechanism provided in the present invention can automatically weld the four butt joint surfaces of two metal pipes, and can also weld metal pipes with different splicing angles, with a high degree of automation and good continuity; (2) The adjustment mechanism provided in the present invention can adjust the butt joint angle of the metal pipe, so that the device can weld metal pipes with different postures and connection angles, and has a wide range of applications; (3) The clamping mechanism provided in the present invention can adjust the clamping position, so that the device can clamp metal pipes of different lengths, and can also clamp square pipes or round pipes of different sizes, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 The main structure of the present invention is shown in FIG. Figure 1 .

[0018] Figure 3 The main structure of the present invention is shown in FIG. Figure 2 .

[0019] Figure 4 The main structure of the present invention is shown in FIG. Figure 3 .

[0020] Figure 5 for Figure 4 A local enlarged schematic diagram of point A in the middle.

[0021] Figure 6 The main structure of the present invention is shown in FIG. Figure 4 .

[0022] Figure 7 Schematic diagram of the adjustment mechanism structure of the present invention Figure 1 .

[0023] Figure 8 Schematic diagram of the adjustment mechanism structure of the present invention Figure 2 .

[0024] Fig. 9 Schematic diagram of the adjustment mechanism structure of the present invention Figure 3 .

[0025] Fig.10The clamping mechanism structure of the present invention is schematically shown in FIG. Figure 1 .

[0026] Fig.11 The clamping mechanism structure of the present invention is schematically shown in FIG. Figure 2 .

[0027] Fig.12 The clamping mechanism structure of the present invention is schematically shown in FIG. Figure 3 .

[0028] Fig.13 The clamping mechanism structure of the present invention is schematically shown in FIG. Figure 4 .

[0029] Figure numbers: 101-box plate; 102-box body; 103-center column; 104-fixed block; 105-inner slide rod; 106-rotating block; 107-rotating gear; 108-fixed sleeve; 109-inner slide column; 110-inner screw rack; 111-lifting motor; 112-screw shaft; 113-internal thread slider; 114-lifting rotating rod; 115-lifting plate; 116-sliding motor; 117-motor wheel; 118-sliding screw rod; 119-screw wheel; 120-output transmission belt; 121-welding gun; 122-electric cylinder; 123-telescopic frame; 124-guide column; 125-rotating seat; 126-telescopic rack; 127-side gear; 128-rotating motor; 129-motor gear; 201-rotating frame; 2 02-adjusting motor; 203-output wheel; 204-outer transmission belt; 205-adjusting wheel; 206-inner screw rod; 207-inner threaded slide; 208-flexible protective cover; 209-outer fixed plate; 210-inner fixed plate; 211-bottom motor; 212-bottom gear; 213-bottom screw rod; 214-screw rod gear; 215-bottom sliding block; 216-bottom guide column; 217-bottom boss; 218-arc groove; 219-inner and outer slide rails; 301-clamping frame; 302-clamping block; 303-clamping roller; 304-clamping back plate; 305-clamping motor; 306-driving gear; 307-action gear; 308-partial gear ring; 309-clamping gear; 310-clamping rack; 4-metal pipe. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0031] Example: Reference Figure 1-Figure 13A metal pipe welding device with adjustable clamping includes a main body mechanism for butting and welding a metal pipe 4, the main body mechanism includes a box plate 101, a center column 103 is fixedly installed on the center column 103, the main body mechanism is provided with two adjustment mechanisms for adjusting the welding direction of the metal pipe 4, the adjustment mechanism includes a rotating frame 201, the rotating frame 201 is rotatably installed on the center column 103, an internal thread slide 207 is slidably installed on the rotating frame 201, and a clamping mechanism for clamping the metal pipe 4 is provided on the adjustment mechanism, the clamping mechanism includes a clamping frame 301, and the clamping frame 301 is fixedly installed on the internal thread slide 207.

[0032] like Figure 2-Figure 6 As shown, the main mechanism includes a box body 102 fixedly installed below the box plate 101, a fixed block 104 is fixedly installed on the box plate 101, an inner slide rod 105 is slidably installed in the fixed block 104, a lifting plate 115 is fixedly installed below the inner slide rod 105, an inner screw rod frame 110 is fixedly installed in the box body 102, a lifting motor 111 is fixedly installed on the inner screw rod frame 110, a screw shaft 112 is rotatably installed on the inner screw rod frame 110, two sections of threads in opposite directions are provided on the screw shaft 112, the screw shaft 112 is fixedly installed with the motor shaft of the lifting motor 111, two internal threaded sliders 113 are slidably installed on the inner screw rod frame 110, the internal threaded sliders 113 and the threads on the screw shaft 112 form a threaded transmission, a lifting rotating rod 114 is rotatably installed on the internal threaded slider 113, and the lifting rotating rod 114 is rotatably installed with the lifting plate 115.

[0033] like Figure 2-Figure 6 As shown, a rotating motor 128 is fixedly mounted on the inner slide rod 105, a motor gear 129 is fixedly mounted on the motor shaft of the rotating motor 128, a rotating block 106 is rotatably mounted on the inner slide rod 105, a rotating gear 107 is fixedly mounted on the rotating block 106, the rotating gear 107 is meshed with the motor gear 129, a fixed sleeve 108 is fixedly mounted on the rotating block 106, an inner slide column 109 is slidably mounted in the fixed sleeve 108, a sliding motor 116 is fixedly mounted on the fixed sleeve 108, a motor wheel 117 is fixedly mounted on the motor shaft of the sliding motor 116, a sliding screw rod 118 is rotatably mounted in the fixed sleeve 108, a screw wheel 119 is fixedly mounted on the sliding screw rod 118, an output transmission belt 120 is wound around the screw wheel 119 and the motor wheel 117, an internal thread is provided in the inner slide column 109, and a threaded transmission is formed between the inner slide column 109 and the sliding screw rod 118.

[0034] like Figure 2-Figure 6As shown, a rotating seat 125 is rotatably mounted on the inner sliding column 109, a welding gun 121 is fixedly mounted on the rotating seat 125, an electric cylinder 122 is fixedly mounted on the inner sliding column 109, a telescopic frame 123 is fixedly mounted on the output end of the electric cylinder 122, guide columns 124 are fixedly mounted on both sides of the inner sliding column 109, a groove is provided on the telescopic frame 123, the guide columns 124 slide in the groove of the telescopic frame 123, a telescopic rack 126 is fixedly mounted on the telescopic frame 123, and a side gear 127 is fixedly mounted on the rotating seat 125, and the side gear 127 is meshed with the telescopic rack 126.

[0035] After the two metal pipes 4 to be welded are clamped by the clamping mechanism, the angle between the two metal pipes 4 is adjusted by the adjusting mechanism, and then the lifting motor 111 rotates to drive the screw shaft 112 to rotate, thereby driving the internal threaded slider 113 to slide along the internal screw frame 110, thereby driving the lifting rotating rod 114 to rotate, thereby driving the lifting plate 115 and the inner sliding rod 105 to lift and lower along the fixed block 104, thereby driving the welding gun 121 to lift and lower, and the sliding motor 116 drives the motor wheel 117 to rotate, and drives the screw wheel 119 and the sliding screw 118 to rotate through the output transmission belt 120, driving the inner sliding column 109 to slide along the fixed sleeve 108, thereby realizing the extension and retraction of the welding gun 121, and the extension and retraction of the electric cylinder 122 drives the telescopic frame 123 to move, thereby driving the side gear 127, the rotating seat 125 and the welding gun 121 to rotate through the telescopic rack 126, thereby realizing the rotation of the welding gun 121, The rotating motor 128 drives the motor gear 129 to rotate, which can drive the rotating gear 107, the rotating block 106 and the fixed sleeve 108 to rotate, thereby driving the welding gun 121 to flip. First, the welding gun 121 rises to achieve the welding of the vertical welds of the two metal pipes 4 away from the side of the fixed block 104, then the welding gun 121 rotates ninety degrees, and the inner sliding column 109 moves outward relative to the fixed sleeve 108 to achieve the welding of the horizontal welds on the tops of the two metal pipes 4, then the welding gun 121 continues to rotate ninety degrees, and the inner sliding bar 105 descends relative to the fixed block 104, driving the welding gun 121 to descend, to achieve the welding of the vertical welds of the two metal pipes 4 located on the side of the fixed block 104, then the rotating block 106 turns one hundred and eighty degrees with the fixed sleeve 108 and the inner sliding column 109, and the inner sliding column 109 expands and contracts relative to the fixed sleeve 108 to achieve the welding of the bottom welds of the two metal pipes 4.

[0036] like Figure 7-Figure 9As shown, the adjustment mechanism includes an adjustment motor 202 fixedly mounted on a rotating frame 201, an output wheel 203 is fixedly mounted on the motor shaft of the adjustment motor 202, an inner screw rod 206 is rotatably mounted inside the rotating frame 201, an inner fixed plate 210 and an outer fixed plate 209 are fixedly mounted on the rotating frame 201, inner and outer slide rails 219 are fixedly mounted on the outer fixed plate 209 and the inner fixed plate 210, an inner threaded slide 207 forms a threaded transmission with the inner screw rod 206, the inner threaded slide 207 is slidably mounted with the inner and outer slide rails 219, an adjustment wheel 205 is fixedly mounted on the inner screw rod 206, and an outer transmission belt 204 is wound around the adjustment wheel 205 and the output wheel 203.

[0037] like Figure 7-Figure 9 As shown, a flexible protective cover 208 is provided between the inner fixing plate 210 and the inner threaded slide 207 , and a flexible protective cover 208 is provided between the outer fixing plate 209 and the inner threaded slide 207 .

[0038] like Figure 7-Figure 9 As shown, a bottom motor 211 is fixedly mounted on the lower surface of the box plate 101, a bottom gear 212 is fixedly mounted on the motor shaft of the bottom motor 211, a bottom screw rod 213 is rotatably mounted on the lower surface of the box plate 101, a screw gear 214 is fixedly mounted on the bottom screw rod 213, the screw gear 214 is meshed with the bottom gear 212, a bottom guide column 216 is fixedly mounted on the lower surface of the box plate 101, a bottom sliding block 215 is slidably mounted on the bottom guide column 216, a sliding groove is arranged on the bottom sliding block 215, a bottom boss 217 is fixedly mounted on the bottom of the rotating frame 201, the bottom boss 217 slides in the sliding groove of the bottom sliding block 215, two arc grooves 218 are arranged on the box plate 101, and the bottom boss 217 slides in the arc groove 218.

[0039] The adjusting motor 202 drives the output wheel 203 to rotate, and drives the adjusting wheel 205 and the inner screw 206 to rotate through the outer transmission belt 204, thereby driving the inner thread slide 207 to slide along the rotating frame 201, thereby adjusting the position of the clamping mechanism to facilitate clamping of metal pipes 4 of different lengths. The flexible protective cover 208 is used to prevent welding slag generated during welding from falling into the box body 102. The bottom motor 211 drives the bottom gear 212 to rotate, thereby driving the screw gear 214 and the bottom screw 213 to rotate, thereby driving the bottom sliding block 215 to slide along the bottom guide column 216, and driving the bottom boss 217 and the rotating frame 201 to move through the slide groove of the bottom sliding block 215, thereby driving the rotating frame 201 to rotate around the center column 103, thereby adjusting the welding angle of the two metal pipes 4.

[0040] like Figure 10-13As shown, the clamping mechanism includes four clamping blocks 302 slidably mounted on the clamping frame 301, two clamping rollers 303 are rotatably mounted on the clamping blocks 302, a clamping back plate 304 is fixedly mounted on the clamping frame 301, a clamping rack 310 is fixedly mounted on the clamping blocks 302, four clamping gears 309 are rotatably mounted on the clamping frame 301, an action gear 307 is fixedly mounted on the clamping gear 309, and the clamping gear 309 is meshed with the clamping rack 310.

[0041] like Figure 10-13 As shown, two clamping motors 305 are fixedly installed on the clamping back plate 304, and a driving gear 306 is fixedly installed on the motor shaft of the clamping motor 305. Two partial gear rings 308 are rotatably installed on the clamping frame 301. The inner partial gear ring 308 is meshed with the action gears 307 on the left and right sides of the clamping frame 301, and the outer partial gear ring 308 is meshed with the action gears 307 on the upper and lower sides of the clamping frame 301. The driving gears 306 on the two clamping motors 305 are respectively meshed with the action gear 307 on the left and the action gear 307 on the lower side.

[0042] The two metal pipes 4 to be welded are placed between the clamping rollers 303 respectively, and the two clamping motors 305 rotate respectively, thereby driving the driving gear 306 to rotate, thereby driving the action gear 307 to rotate, thereby driving the partial gear ring 308 to rotate, thereby driving the action gear 307 and the clamping gear 309 to rotate, thereby driving the clamping rack 310 and the clamping block 302 to slide, thereby driving the clamping block 302 and the clamping roller 303 to move inward, and the metal pipe 4 is clamped by the clamping roller 303.

[0043] The working principle of the adjustable clamping metal pipe welding device disclosed in the present invention is: two metal pipes 4 to be welded are placed between the clamping rollers 303 respectively, and the two clamping motors 305 are rotated respectively, thereby driving the driving gear 306 to rotate, thereby driving the action gear 307 to rotate, thereby driving the partial gear ring 308 to rotate, thereby driving the action gear 307 and the clamping gear 309 to rotate, thereby driving the clamping rack 310 and the clamping block 302 to slide, thereby driving the clamping block 302 and the clamping roller 303 to move inward, and the metal pipe 4 is clamped by the clamping roller 303. The adjusting motor 202 drives the output wheel 203 to rotate, and drives the adjusting wheel 205 and the inner screw 206 to rotate through the outer transmission belt 204, thereby driving the inner thread slide 207 to slide along the rotating frame 201, thereby adjusting the position of the clamping mechanism to facilitate clamping of metal pipes 4 of different lengths. The flexible protective cover 208 is used to prevent welding slag generated during welding from falling into the box body 102. The bottom motor 211 drives the bottom gear 212 to rotate, thereby driving the screw gear 214 and the bottom screw 213 to rotate, thereby driving the bottom sliding block 215 to slide along the bottom guide column 216, and driving the bottom boss 217 and the rotating frame 201 to move through the slide groove of the bottom sliding block 215, thereby driving the rotating frame 201 to rotate around the center column 103, thereby adjusting the welding angle of the two metal pipes 4.After the two metal pipes 4 to be welded are clamped by the clamping mechanism, the angle between the two metal pipes 4 is adjusted by the adjusting mechanism, and then the lifting motor 111 rotates to drive the screw shaft 112 to rotate, thereby driving the internal threaded slider 113 to slide along the internal screw frame 110, thereby driving the lifting rotating rod 114 to rotate, thereby driving the lifting plate 115 and the inner sliding rod 105 to lift and lower along the fixed block 104, thereby driving the welding gun 121 to lift and lower, and the sliding motor 116 drives the motor wheel 117 to rotate, and drives the screw wheel 119 and the sliding screw 118 to rotate through the output transmission belt 120, driving the inner sliding column 109 to slide along the fixed sleeve 108, thereby realizing the extension and retraction of the welding gun 121, and the extension and retraction of the electric cylinder 122 drives the telescopic frame 123 to move, thereby driving the side gear 127, the rotating seat 125 and the welding gun 121 to rotate through the telescopic rack 126, thereby realizing the rotation of the welding gun 121, The rotating motor 128 drives the motor gear 129 to rotate, which can drive the rotating gear 107, the rotating block 106 and the fixed sleeve 108 to rotate, thereby driving the welding gun 121 to flip. First, the welding gun 121 rises to achieve the welding of the vertical welds of the two metal pipes 4 away from the side of the fixed block 104, then the welding gun 121 rotates ninety degrees, and the inner sliding column 109 moves outward relative to the fixed sleeve 108 to achieve the welding of the horizontal welds on the tops of the two metal pipes 4, then the welding gun 121 continues to rotate ninety degrees, and the inner sliding bar 105 descends relative to the fixed block 104, driving the welding gun 121 to descend, to achieve the welding of the vertical welds of the two metal pipes 4 located on the side of the fixed block 104, then the rotating block 106 turns one hundred and eighty degrees with the fixed sleeve 108 and the inner sliding column 109, and the inner sliding column 109 expands and contracts relative to the fixed sleeve 108 to achieve the welding of the bottom welds of the two metal pipes 4.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal pipe welding device with adjustable clamping, comprising a main body mechanism for butting and welding a metal pipe (4), characterized in that: The main body mechanism comprises a box plate (101), a central column (103) is fixedly mounted on the central column (103), the main body mechanism is provided with two adjustment mechanisms for adjusting the welding direction of the metal pipe (4), the adjustment mechanism comprises a rotating frame (201), the rotating frame (201) is rotatably mounted on the central column (103), an internal thread slide (207) is slidably mounted on the rotating frame (201), and a clamping mechanism for clamping the metal pipe (4) is provided on the adjustment mechanism, the clamping mechanism comprises a clamping frame (301), and the clamping frame (301) is fixedly mounted on the internal thread slide (207).

2. The adjustable clamping metal pipe welding device according to claim 1, characterized in that: The main mechanism comprises a box body (102) fixedly mounted below a box plate (101); a fixed block (104) fixedly mounted on the box plate (101); an inner slide bar (105) slidably mounted in the fixed block (104); a lifting plate (115) fixedly mounted below the inner slide bar (105); an inner screw rod frame (110) fixedly mounted in the box body (102); a lifting motor (111) fixedly mounted on the inner screw rod frame (110); and a screw rod frame (110) rotatably mounted on the inner screw rod frame (110). A rod shaft (112) is provided with two sections of threads in opposite directions on the screw shaft (112), the screw shaft (112) is fixedly installed with the motor shaft of the lifting motor (111), two internal thread sliders (113) are slidably installed on the internal screw frame (110), the internal thread sliders (113) and the threads on the screw shaft (112) form a threaded transmission, a lifting rotating rod (114) is rotatably installed on the internal thread slider (113), and the lifting rotating rod (114) and the lifting plate (115) are rotatably installed.

3. The adjustable clamping metal pipe welding device according to claim 2, characterized in that: A rotating motor (128) is fixedly mounted on the inner slide bar (105), a motor gear (129) is fixedly mounted on the motor shaft of the rotating motor (128), a rotating block (106) is rotatably mounted on the inner slide bar (105), a rotating gear (107) is fixedly mounted on the rotating block (106), the rotating gear (107) is meshed with the motor gear (129), a fixed sleeve (108) is fixedly mounted on the rotating block (106), an inner slide column (109) is slidably mounted in the fixed sleeve (108), and the fixed sleeve (108) is fixedly mounted with the inner slide column (109). A sliding motor (116) is fixedly mounted on the fixed sleeve (108), a motor wheel (117) is fixedly mounted on the motor shaft of the sliding motor (116), a sliding screw (118) is rotatably mounted in the fixed sleeve (108), a screw wheel (119) is fixedly mounted on the sliding screw (118), an output transmission belt (120) is wound around the screw wheel (119) and the motor wheel (117), an internal thread is arranged in the inner sliding column (109), and the inner sliding column (109) and the sliding screw (118) form a threaded transmission.

4. The adjustable clamping metal pipe welding device according to claim 3, characterized in that: A rotating seat (125) is rotatably mounted on the inner sliding column (109), a welding gun (121) is fixedly mounted on the rotating seat (125), an electric cylinder (122) is fixedly mounted on the inner sliding column (109), a telescopic frame (123) is fixedly mounted on the output end of the electric cylinder (122), guide posts (124) are fixedly mounted on both sides of the inner sliding column (109), a groove is provided on the telescopic frame (123), the guide posts (124) slide in the groove of the telescopic frame (123), a telescopic rack (126) is fixedly mounted on the telescopic frame (123), and a side gear (127) is fixedly mounted on the rotating seat (125), the side gear (127) meshes with the telescopic rack (126).

5. The metal pipe welding device with adjustable clamping according to claim 1, characterized in that: The adjustment mechanism comprises an adjustment motor (202) fixedly mounted on a rotating frame (201); an output wheel (203) fixedly mounted on a motor shaft of the adjustment motor (202); an inner screw rod (206) rotatably mounted inside the rotating frame (201); an inner fixing plate (210) and an outer fixing plate (209) fixedly mounted on the rotating frame (201); inner and outer slide rails (219) fixedly mounted on the outer fixing plate (209) and the inner fixing plate (210); an inner threaded slide frame (207) and the inner screw rod (206) form a threaded transmission; the inner threaded slide frame (207) and the inner and outer slide rails (219) are slidably mounted; an adjustment wheel (205) is fixedly mounted on the inner screw rod (206); and an outer transmission belt (204) is wound around the adjustment wheel (205) and the output wheel (203).

6. The adjustable clamping metal pipe welding device according to claim 5, characterized in that: A flexible protective cover (208) is provided between the inner fixing plate (210) and the internally threaded slide (207), and a flexible protective cover (208) is provided between the outer fixing plate (209) and the internally threaded slide (207).

7. The metal pipe welding device with adjustable clamping according to claim 5, characterized in that: A bottom motor (211) is fixedly mounted on the lower surface of the box plate (101), a bottom gear (212) is fixedly mounted on the motor shaft of the bottom motor (211), a bottom screw rod (213) is rotatably mounted on the lower surface of the box plate (101), a screw rod gear (214) is fixedly mounted on the bottom screw rod (213), and the screw rod gear (214) meshes with the bottom gear (212), a bottom guide column (216) is fixedly mounted on the lower surface of the box plate (101), a bottom sliding block (215) is slidably mounted on the bottom guide column (216), a sliding groove is provided on the bottom sliding block (215), a bottom boss (217) is fixedly mounted on the bottom of the rotating frame (201), the bottom boss (217) slides in the sliding groove of the bottom sliding block (215), and two arc grooves (218) are provided on the box plate (101), and the bottom boss (217) slides in the arc grooves (218).

8. The adjustable clamping metal pipe welding device according to claim 1, characterized in that: The clamping mechanism comprises four clamping blocks (302) slidably mounted on a clamping frame (301), two clamping rollers (303) rotatably mounted on the clamping blocks (302), a clamping back plate (304) fixedly mounted on the clamping frame (301), a clamping rack (310) fixedly mounted on the clamping blocks (302), four clamping gears (309) rotatably mounted on the clamping frame (301), an action gear (307) fixedly mounted on the clamping gears (309), and the clamping gears (309) mesh with the clamping racks (310).

9. The adjustable clamping metal pipe welding device according to claim 8, characterized in that: Two clamping motors (305) are fixedly mounted on the clamping back plate (304), and a driving gear (306) is fixedly mounted on the motor shaft of the clamping motor (305). Two partial gear rings (308) are rotatably mounted on the clamping frame (301), the inner partial gear ring (308) meshes with the action gears (307) on the left and right sides of the clamping frame (301), and the outer partial gear ring (308) meshes with the action gears (307) on the upper and lower sides of the clamping frame (301), and the driving gears (306) on the two clamping motors (305) mesh with the action gear (307) on the left side and the action gear (307) on the lower side, respectively.

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