An integrated inner and outer diameter welding machine for metal pipe processing

Abstract

The present invention discloses an integrated inner and outer diameter welding machine for metal pipe processing, which belongs to the field of metal pipe processing. The integrated inner and outer diameter welding machine for metal pipe processing comprises a processing table and two sets of welding heads, wherein one side of the processing table is connected to two sets of clamping assemblies, and the side of the processing table away from the clamping assembly is provided with a support plate, the top of the support plate is fixedly connected to a fixing frame, and a first slider and a second slider are provided inside the fixing frame, and the first slider and the second slider are both slidably connected to slide rods, and the two sets of welding heads are respectively arranged on the two sets of slide rods, and the welding heads are driven by the two sets of slide rods to move to the welding positions on the two sets of metal pipes on the inner and outer sides respectively. The two sets of welding heads weld the inner and outer side connections of the two sets of metal pipes respectively, and then the driving motor drives the metal pipe to rotate through the driving wheel to perform circumferential welding at the connection of the inner and outer walls, thereby improving the quality of welding and reducing the gap at the connection of the inner wall.

Description

Technical Field

[0001] The present invention relates to the technical field of metal pipe processing, and in particular to an integrated inner and outer diameter welding machine for metal pipe processing. Background Art

[0002] Metal pipes are frequently used building materials. When using metal pipes, different shapes of metal pipes are required according to different usage situations, so welding devices are required.

[0003] Existing metal pipe processing welding devices generally connect two metal pipe clamps by sliding on a slideway, fix the pipes to be welded on the two metal pipe clamps respectively, and then control the metal pipe clamps to move closer to each other to align the pipes.

[0004] Publication number CN113441859A discloses an automatic welding device for steel pipe processing, comprising a base box, a welding gun provided on the outside of the base box, a support cylinder rotatably penetrated on the upper side wall of the base box, a driving mechanism for driving the support cylinder to rotate provided inside the base box, a placement plate fixedly connected to the inner side wall of the support cylinder, a ring box fixedly sleeved on the outer side wall of the support cylinder, a plurality of threaded rods rotatably connected to the inner side wall of the ring box, a threaded sleeve sleeved on the threaded rod, the end of the threaded sleeve away from the ring box slides through the side wall of the base box and is fixedly connected to a clamping block, and an adjustment mechanism for adjusting the position of the clamping block is provided inside the ring box. By providing a clamping block, the present invention can stably clamp workpieces of various specifications, greatly improving the adaptability of the device; by providing a support cylinder, the welding effect can be made more uniform and the welding efficiency can be higher; by providing a rotating rod, the safety and protection of the device can be improved.

[0005] However, in the above patent, only the outside of the metal pipe is welded, resulting in residual interface gaps at the internal connection of the metal pipe, which reduces the effect of the metal pipe welding. Summary of the Invention

[0006] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide an integrated inner and outer diameter welding machine for metal pipe processing, which drives the pressure plate to move downward through the clamping cylinder to clamp the metal pipe on the lower support, and then drives the displacement screw to rotate through the displacement motor. The displacement screw drives two sets of slide rods to move through the movable plate, and the two sets of slide rods drive the welding heads to move to the welding points on the two groups of metal pipes on the inside and outside of the metal pipe respectively. The two sets of welding heads weld the inner and outer connections of the two groups of metal pipes respectively, and then the driving motor drives the metal pipe to rotate through the driving wheel to perform circumferential welding at the connection of the inner and outer walls, thereby improving the welding effect and welding quality and reducing the gap at the inner wall connection.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] The cam is secured to the upper and lower ends of the support frame, and the cam is secured to the lower ends of the support frame by a spring, and the cam is secured to the lower ends of the support frame by a spring.

[0009] As a further solution of the present invention: the clamping assembly includes a support frame, the inner wall of the support frame is fixedly connected to a base, the top of the base is fixedly connected to a lower support, the top outer wall of the support frame is fixedly connected to a clamping cylinder, and the output end of the clamping cylinder passes through the support frame and is fixedly connected to a pressure plate.

[0010] As a further solution of the present invention: the clamping assembly also includes a through slot opened in the middle of the base and passing through the lower support, a rotating shaft is rotatably connected inside the through slot, a driving wheel is fixedly connected to the rotating shaft, a driving motor is fixedly connected to the bottom of the base, and the output end of the driving motor is connected to the rotating shaft through a transmission belt.

[0011] As a further solution of the present invention: the driving wheel is a rubber wheel, and the height of the driving wheel is 8 mm higher than the bottom wall of the lower support.

[0012] As a further solution of the present invention: the lower support and the pressure plate are both arc-shaped, and the inner walls of the lower support and the pressure plate are provided with arc-shaped grooves, and multiple groups of balls roll inside the arc-shaped grooves.

[0013] As a further solution of the present invention: a slide groove is provided on one side of the processing table, a fixed block is fixedly connected to the bottom of one side of the slide groove, an adjusting motor is fixedly connected to one side of the fixed block, the output end of the adjusting motor passes through the fixed block and is fixedly connected to a bidirectional screw rod, two groups of thread grooves with opposite rotation directions are provided on the bidirectional screw rod, two groups of moving blocks are threadedly connected to the bidirectional screw rod, the upper ends of the two groups of moving blocks pass through the slide groove and are respectively connected to the two groups of support frames.

[0014] As a further solution of the present invention: the first slider is fixedly connected to the middle inner wall of the fixed frame, the outer wall of one side of the fixed frame is fixedly connected to the pitch-adjusting motor, the output end of the pitch-adjusting motor passes through the fixed frame and is fixedly connected to the pitch-adjusting screw, the second slider is threadedly connected to the pitch-adjusting screw, and the top of the second slider is in contact with the top inner wall of the fixed frame.

[0015] As a further solution of the present invention: C-shaped frames are fixedly connected to one ends of the two groups of slide bars. A welding motor is fixedly connected to an outer wall of one side of the C-shaped frame. An output end of the welding motor penetrates through the C-shaped frame and is fixedly connected to a welding screw rod. An adjusting block is threadedly connected to an outer wall of the welding screw rod. One side of the adjusting block is in contact with an inner wall of the C-shaped frame. A connecting plate is fixedly connected to a side of the adjusting block away from the C-shaped frame. The welding head is fixedly connected to one side of the connecting plate.

[0016] As a further solution of the present invention: An adjusting cylinder is fixedly connected to an inner wall of the top of the processing table. An output end of the adjusting cylinder penetrates through the processing table and is connected to a bottom of the support plate. Two limiting rods are fixedly connected to the bottom of the support plate. The two limiting rods are located on both sides of the adjusting cylinder and slide on the processing table.

[0017] As a further solution of the present invention: A baffle is fixedly connected to a side of the support plate away from the fixed frame. One end of the displacement screw rod away from the displacement motor is rotatably connected to the baffle. A limiting groove is formed in the moving plate. One ends of the two groups of slide bars away from the welding head slide in the limiting groove.

[0018] Advantages of the present invention:

[0019] 1. In the present invention, the clamping cylinder is used to drive the pressing plate to move downward to clamp the metal pipe on the lower support. Then, the displacement motor is used to drive the displacement screw rod to rotate. The displacement screw rod drives the two groups of slide bars through the moving plate. The two groups of slide bars drive the welding heads to move to the welding positions on the two metal pipes respectively on the inner and outer sides of the metal pipe. The two welding heads respectively weld the joints on the inner and outer sides of the two metal pipes. Then, the driving motor drives the metal pipe to rotate through the driving wheel to perform circumferential welding on the joints of the inner and outer walls, improving the welding effect and quality and reducing the gap at the inner wall joint.

[0020] 2. In the present invention, the adjusting cylinder is used to drive the welding head to move up and down to make the welding head on the first slider concentric with the center of the metal pipe. The distance adjustment motor is used to drive the welding head on one group of slide bars to move horizontally to adjust the distance between the two welding heads, facilitating the welding of joints of metal pipes with different diameters.

[0021] 3. In the present invention, the welding motor is used to drive the welding head to move to adjust the distance between the welding head and the inner and outer walls of the metal pipe, facilitating welding at different distances. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following further describes the present invention with reference to the drawings.

[0023] Figure 1 is a schematic cross-sectional front view structure diagram of the present invention;

[0024] Figure 2It is a schematic diagram of the top structure of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the clamping assembly of the present invention;

[0026] Figure 4 This invention Figure 3 A schematic diagram of the enlarged structure of part A;

[0027] Figure 5 This is a schematic diagram of a partial cross-sectional structure of the lower support of the present invention;

[0028] Figure 6 It is a schematic diagram of the internal structure of the fixing frame of the present invention;

[0029] Figure 7 It is a schematic diagram of the internal structure of the mold frame of the present invention.

[0030] Figure: 1, processing table; 101, slide; 102, baffle; 103, fixing block; 2, clamping assembly; 201, support frame; 202, base; 2021, through groove; 2022, rotating shaft; 203, lower support; 2031, arc groove; 2032, ball bearing; 204, clamping cylinder; 205, pressure plate; 206, driving wheel; 207, driving motor; 208, transmission belt; 209, adjusting motor; 2091, bidirectional screw; 2092 , moving block; 3, support plate; 301, fixed frame; 302, first slider; 303, second slider; 3031, pitch-adjusting motor; 3032, pitch-adjusting screw; 4, slide rod; 5, displacement motor; 501, displacement screw; 502, moving plate; 5021, limiting groove; 6, welding head; 601, molding frame; 602, welding motor; 603, welding screw; 604, adjusting block; 605, connecting plate; 7, adjusting cylinder; 701, limiting rod. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] like Figure 1-Figure 7As shown, a metal pipe processing inner and outer diameter welding integrated machine includes a processing table 1 and two groups of welding heads 6. Two groups of clamping assemblies 2 are movably connected to one side of the processing table 1. The two groups of metal pipes to be welded are respectively placed on the two groups of clamping assemblies 2 for clamping and fixing. A support plate 3 is provided on the side of the processing table 1 away from the clamping assembly 2. The top of the support plate 3 close to the clamping assembly 2 is fixedly connected to a fixed frame 301. A first slider 302 and a second slider 303 are provided inside the fixed frame 301. The first slider 302 and the second slider 303 are both slidably connected to a slide rod 4. The two groups of welding heads 6 are respectively arranged on one end of the two groups of slide rods 4, and the two groups of welding heads 6 are arranged opposite to each other. A displacement motor 5 is fixedly connected to the top of the fixed frame 301. A displacement screw rod 501 is fixedly connected to the output end of the displacement motor 5. A movable plate 502 is threadedly connected to the displacement screw rod 501. The bottom of the movable plate 502 is in contact with the top of the support plate 3, and one end of the two groups of slide rods 4 away from the welding head 6 is against the movable plate 502.

[0033] like Figure 1 、 Figure 2 and Figure 3 As shown, the clamping assembly 2 includes a support frame 201, the inner wall of the support frame 201 is fixedly connected to a base 202, the top of the base 202 is fixedly connected to a lower support 203, the lower support 203 is used to place the metal pipe, the top outer wall of the support frame 201 is fixedly connected to a clamping cylinder 204, the output end of the clamping cylinder 204 passes through the support frame 201 and is fixedly connected to a pressure plate 205, the clamping cylinder 204 drives the pressure plate 205 to press and fix the metal pipe, and the lower support 203 and the pressure plate 205 are both arc-shaped plates.

[0034] like Figure 3 、 Figure 4 and Figure 5 As shown, the clamping assembly 2 also includes a through slot 2021 opened in the middle of the base 202 and passing through the lower support 203. The through slot 2021 is rotatably connected to a rotating shaft 2022. The rotating shaft 2022 is fixedly connected to a driving wheel 206. The bottom of the base 202 is fixedly connected to a driving motor 207. The output end of the driving motor 207 is connected to the rotating shaft 2022 through a transmission belt 208. The driving wheel 206 is a rubber wheel, and the height of the driving wheel 206 is higher than the lower support 20 3 The bottom wall is 8mm. When the metal tube is placed on the lower support 203, the metal tube presses down the driving wheel 206, and the driving wheel 206 is deformed by the pressure, thereby increasing the friction between the metal tube and the driving wheel 206, making it easier for the driving wheel 206 to drive the metal tube to rotate. The inner walls of the lower support 203 and the pressure plate 205 are both provided with arc grooves 2031. Multiple groups of balls 2032 roll inside the arc grooves 2031. The metal tube is in contact with the multiple groups of balls 2032, thereby improving the smoothness of the metal tube's rotation.

[0035] like Figure 1 and Figure 2As shown, a slide groove 101 is provided on one side of the processing table 1, and a fixed block 103 is fixedly connected to the bottom of one side of the slide groove 101. An adjusting motor 209 is fixedly connected to one side of the fixed block 103. The output end of the adjusting motor 209 passes through the fixed block 103 and is fixedly connected to a bidirectional screw rod 2091. Two groups of thread grooves with opposite rotation directions are provided on the bidirectional screw rod 2091. Two groups of moving blocks 2092 are threadedly connected to the bidirectional screw rod 2091. The upper ends of the two groups of moving blocks 2092 pass through the slide groove 101 and are respectively connected to the two groups of support frames 201.

[0036] like Figure 1 and Figure 6 As shown, the first slider 302 is fixedly connected to the middle inner wall of the fixed frame 301, and the outer wall of one side of the fixed frame 301 is fixedly connected to the pitch-adjusting motor 3031. The output end of the pitch-adjusting motor 3031 passes through the fixed frame 301 and is fixedly connected to the pitch-adjusting screw rod 3032. The second slider 303 is threadedly connected to the pitch-adjusting screw rod 3032, and the top of the second slider 303 is in contact with the inner wall of the top of the fixed frame 301. The pitch-adjusting motor 3031 drives the pitch-adjusting screw rod 3032 to rotate, and the pitch-adjusting screw rod 3032 drives the second slider 303 to move. The second slider 303 drives one of the two groups of slide rods 4 to move, thereby adjusting the distance between the two groups of slide rods 4, which is convenient for welding metal pipes of different diameters.

[0037] like Figure 1 and Figure 7 As shown, one end of the two groups of sliding rods 4 are fixedly connected to a profile frame 601, and the outer wall of one side of the profile frame 601 is fixedly connected to a welding motor 602. The output end of the welding motor 602 passes through the profile frame 601 and is fixedly connected to a welding screw 603. The outer wall of the welding screw 603 is threadedly connected to an adjusting block 604. One side of the adjusting block 604 is attached to the inner wall of the profile frame 601, and the side of the adjusting block 604 away from the profile frame 601 is fixedly connected to a connecting plate 605. The welding head 6 is fixedly connected to one side of the connecting plate 605. By starting the welding motor 602, the welding motor 602 drives the welding screw 603 to rotate, and the welding screw 603 drives the adjusting block 604 to move. The adjusting block 604 drives the welding head 6 to move through the connecting plate 605, so as to adjust the distance between the welding head 6 and the inner and outer walls of the metal pipe, thereby improving the convenience of welding.

[0038] like Figure 1 As shown, an adjusting cylinder 7 is fixedly connected to the inner wall of the top of the processing table 1. The output end of the adjusting cylinder 7 passes through the processing table 1 and is connected to the bottom of the support plate 3, and is used to adjust the height of the two groups of slide bars 4 on the support plate 3 so that the slide bar 4 on the first slider 302 is concentric with the metal tube. Two groups of limit rods 701 are fixedly connected to the bottom of the support plate 3. The two groups of limit rods 701 are located on both sides of the adjusting cylinder 7 and slide on the processing table 1 to improve the stability of the lifting and lowering of the support plate 3.

[0039] like Figure 1 As shown, the support plate 3 is fixedly connected to a baffle 102 on one side away from the fixed frame 301, and the end of the displacement screw 501 away from the displacement motor 5 is rotatably connected to the baffle 102 to improve the rotation stability of the displacement screw 501. A limiting groove 5021 is provided on the movable plate 502, and the ends of the two groups of slide rods 4 away from the welding head 6 slide in the limiting groove 5021 to avoid shaking when the slide rod 4 moves.

[0040] In the present invention, the welding head 6 is an electric welding device commonly used in the prior art.

[0041] The working principle of the present invention is as follows: when the user uses it, the two groups of metal pipes to be welded are placed on the lower supports 203 on the two groups of clamping assemblies 2 respectively, and then the clamping cylinder 204 drives the pressure plate 205 to move downward, and the pressure plate 205 is in contact with the upper surface of the metal pipe to clamp the metal pipe, and then the adjustment motor 209 is started, and the adjustment motor 209 drives the bidirectional screw rod 2091 to rotate, and the two groups of moving blocks 2092 on the bidirectional screw rod 2091 move inward synchronously, and the two groups of moving blocks 2092 drive the two groups of bases 202 to move, and the two groups of bases 202 drive the two groups of lower supports 20 3, the two sets of metal tubes on the support plate 3 are moved so that one end of the two sets of metal tubes are attached and concentric, and then the driving motor 207 is started to drive the support plate 3 to move upward, the support plate 3 drives the fixing frame 301 to move upward, the fixing frame 301 drives the two sets of slide bars 4 to move upward through the first slider 302 and the second slider 303, when the slide bar 4 on the first slider 302 is concentric with the metal tube, the driving motor 207 is stopped, and then the pitch-adjusting motor 3031 is started, the pitch-adjusting motor 3031 drives the pitch-adjusting screw rod 3032 to rotate, the pitch-adjusting screw rod 3032 drives the second slider 303 to move, and the second slider 3 03 drives the slide bar 4 on it to move to the parallel line outside the metal tube, and then starts the displacement motor 5. The displacement motor 5 drives the displacement screw rod 501 to rotate, and the movable plate 502 threadedly connected to the displacement screw rod 501 moves against the support plate 3. The movable plate 502 is pressed against one end of the two sets of slide bars 4, pushing the slide bars 4 to move toward the direction of the two sets of clamping components 2, so that the welding heads 6 on the two sets of slide bars 4 move from one end of one of the two sets of metal tubes to the welding place of the two sets of metal tubes. At this time, the two sets of welding heads 6 are respectively located at the inner and outer walls of the welding place of the two sets of metal tubes. At this time, through the two sets of welding The head 6 welds the welding points of the two groups of metal pipes, and then starts the driving motors 207 on the two groups of clamping assemblies 2. The two groups of driving motors 207 respectively drive the rotating shaft 2022 to rotate through the transmission belts 208 on the output ends, and the rotating shaft 2022 drives the driving wheel 206 to rotate. The friction between the two groups of driving wheels 206 and the metal pipes drives the two groups of metal pipes to rotate synchronously. The welding position of the welding head 6 is adjusted so that the welding head 6 performs circumferential welding on the connection points of the two groups of metal pipes, thereby improving the convenience of welding. At the same time, the two groups of metal pipes rotate synchronously to avoid welding deformation at the welding points.

[0042] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An integrated inner and outer diameter welding machine for metal pipe processing, comprising a processing table (1) and two sets of welding heads (6), characterized in that: One side of the processing table (1) is movably connected to two groups of clamping components (2), a support plate (3) is provided on the side of the processing table (1) away from the clamping components (2), a fixing frame (301) is fixedly connected to the top of the side of the support plate (3) close to the clamping components (2), a first slider (302) and a second slider (303) are provided inside the fixing frame (301), and a slide rod (4) is slidably connected to the first slider (302) and the second slider (303), and the two groups of welding heads ( 6) are respectively arranged on one end of the two groups of slide rods (4), and the two groups of welding heads (6) are arranged opposite to each other, the top of the fixing frame (301) is fixedly connected to the displacement motor (5), the output end of the displacement motor (5) is fixedly connected to the displacement screw (501), the displacement screw (501) is threadedly connected to the moving plate (502), the bottom of the moving plate (502) is in contact with the top of the support plate (3), and the ends of the two groups of slide rods (4) away from the welding heads (6) are against the moving plate (502); The clamping assembly (2) comprises a support frame (201), the inner wall of the support frame (201) is fixedly connected to a base (202), the top of the base (202) is fixedly connected to a lower support (203), the top outer wall of the support frame (201) is fixedly connected to a clamping cylinder (204), and the output end of the clamping cylinder (204) passes through the support frame (201) and is fixedly connected to a pressure plate (205); The clamping assembly (2) further comprises a through slot (2021) provided in the middle of the base (202) and penetrating the lower support (203); a rotating shaft (2022) is rotatably connected inside the through slot (2021); a driving wheel (206) is fixedly connected to the rotating shaft (2022); a driving motor (207) is fixedly connected to the bottom of the base (202); an output end of the driving motor (207) is transmission-connected to the rotating shaft (222) via a transmission belt (208); The lower support (203) and the pressure plate (205) are both arc-shaped, and the inner walls of the lower support (203) and the pressure plate (205) are provided with arc-shaped grooves (2031), and multiple groups of balls (2032) roll inside the arc-shaped grooves (2031); A slide groove (101) is provided on one side of the processing table (1), a fixed block (103) is fixedly connected to the bottom of one side of the slide groove (101), an adjustment motor (209) is fixedly connected to one side of the fixed block (103), an output end of the adjustment motor (209) passes through the fixed block (103) and is fixedly connected to a bidirectional screw rod (2091), two groups of thread grooves with opposite rotation directions are provided on the bidirectional screw rod (2091), two groups of moving blocks (2092) are threadedly connected on the bidirectional screw rod (2091), and the upper ends of the two groups of moving blocks (2092) pass through the slide groove (101) and are respectively connected to the two groups of support frames (201); The first slider (302) is fixedly connected to the middle inner wall of the fixing frame (301); a pitch-adjusting motor (3031) is fixedly connected to the outer wall of one side of the fixing frame (301); an output end of the pitch-adjusting motor (3031) passes through the fixing frame (301) and is fixedly connected to a pitch-adjusting screw rod (3032); the second slider (303) is threadedly connected to the pitch-adjusting screw rod (3032), and the top of the second slider (303) is in contact with the top inner wall of the fixing frame (301); One end of each of the two groups of sliding rods (4) is fixedly connected to a profile frame (601), an outer wall of one side of the profile frame (601) is fixedly connected to a welding motor (602), an output end of the welding motor (602) passes through the profile frame (601) and is fixedly connected to a welding screw rod (603), an outer wall of the welding screw rod (603) is threadedly connected to an adjusting block (604), one side of the adjusting block (604) is in contact with the inner wall of the profile frame (601), a side of the adjusting block (604) away from the profile frame (601) is fixedly connected to a connecting plate (605), and the welding head (6) is fixedly connected to one side of the connecting plate (605).

2. The inner and outer diameter welding integrated machine for metal pipe processing according to claim 1, characterized in that: The driving wheel (206) is a rubber wheel, and the height of the driving wheel (206) is 8 mm higher than the bottom wall of the lower support (203).

3. The inner and outer diameter welding integrated machine for metal pipe processing according to claim 1, characterized in that: An adjusting cylinder (7) is fixedly connected to the inner wall of the top of the processing table (1), and an output end of the adjusting cylinder (7) passes through the processing table (1) and is connected to the bottom of the support plate (3). Two sets of limiting rods (701) are fixedly connected to the bottom of the support plate (3), and the two sets of limiting rods (701) are located on both sides of the adjusting cylinder (7) and slide on the processing table (1).

4. The inner and outer diameter welding integrated machine for metal pipe processing according to claim 1, characterized in that: A baffle (102) is fixedly connected to one side of the support plate (3) away from the fixed frame (301); one end of the displacement screw rod (501) away from the displacement motor (5) is rotatably connected to the baffle (102); a limiting groove (5021) is provided on the movable plate (502); and one end of the two sets of slide rods (4) away from the welding head (6) slides in the limiting groove (5021).

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