Pipe automatic welding machine

Abstract

The utility model discloses a kind of pipe fittings automatic welding machine, it is related to pipe fittings manufacturing field.The pipe fittings automatic welding machine includes rack, the top of the rack is oppositely installed with first welding unit and second welding unit, the bottom of the second welding unit is provided with the clamping unit that drives it to move horizontally, and the clamping unit is slidably arranged on the top of the rack, the first welding unit and the second welding unit are all included base, positioning rotating component, vertical moving component, welding machine and fine adjustment component.The pipe fittings automatic welding machine, positioning rotating component drives pipe fittings uniform rotation, ensure the uniformity of ring seam welding, vertical moving component cooperates fine adjustment component can drive welding machine to carry out multidimensional position adjustment, and fine adjustment component realizes welding machine accurate position adjustment, accurately aligns weld center, reduces wrong side, bites edge defect.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting manufacturing technology, specifically to an automatic pipe fitting welding machine. Background Technology

[0002] In the field of pipe fitting manufacturing and connection, circumferential welding is a common processing procedure, widely used in industries such as petroleum, chemical, water conservancy, and construction. Traditional circumferential welding of pipe fittings often employs manual or semi-automatic welding methods, which presents the following problems:

[0003] Low welding precision: Manual welding relies on the operator's skill level and is prone to uneven welds and misalignment defects due to pipe positioning deviations, unstable rotation, or welding machine position shifts.

[0004] Inefficient: Manually adjusting the position of pipe fittings and the angle of the welding machine is time-consuming, and the welding cycle for a single weld is fixed, making it difficult to meet the needs of mass production;

[0005] Poor adaptability: Pipe fittings of different lengths and diameters require the replacement of special tooling, the adjustment process is cumbersome, and the equipment has low versatility;

[0006] High labor intensity: Operators need to be in close contact with welding arc light and high temperature for a long time. The working environment is harsh and fatigue can easily affect the welding quality. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides an automatic pipe welding machine that solves the problems of pipe positioning and rotation stability as well as the multi-dimensional precise adjustment of the welding machine.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic pipe welding machine, comprising a frame, with a first welding unit and a second welding unit mounted opposite each other on the upper part of the frame. The bottom of the second welding unit is provided with a clamping unit that drives it to move laterally, and the clamping unit is slidably positioned above the frame. Both the first and second welding units include a base, a positioning and rotating assembly, a vertical moving assembly, a welding machine, and a fine-tuning assembly. The positioning and rotating assembly and the vertical moving assembly are both mounted on the base. The positioning and rotating assembly fixes the end of the pipe fitting and drives the pipe fitting to rotate. The vertical moving assembly is connected to the welding machine and the fine-tuning assembly, and the vertical moving assembly, in conjunction with the fine-tuning assembly, drives the welding machine to perform multi-dimensional position adjustments.

[0009] Preferably, a slide rail is fixedly installed on the top of the frame.

[0010] Preferably, the positioning and rotating assembly includes a rotating frame, a servo motor, a rotating disk, and a positioning rod. The rotating frame is fixedly installed above the base, the servo motor is fixedly installed on the outside of the rotating frame, the output shaft of the servo motor passes through the rotating frame and is fixedly connected to the rotating disk, one end of the positioning rod is fixedly connected to the geometric center of the rotating disk, and the other end of the positioning rod is inserted into the inside of the end of the pipe.

[0011] Preferably, the vertical moving assembly includes a housing, a vertical cylinder, a movable seat, and a fixed plate. The housing is fixedly installed above the base. The vertical cylinder is embedded between the bottom of the base and the housing. The movable seat is slidably disposed on the inner wall of the housing. The top end of the output shaft of the vertical cylinder is fixedly connected to the movable seat, and the end of the movable seat extends outward through the housing and is fixedly connected to the fixed plate. A protective plate is provided above the fixed plate, and the fixed plate and the protective plate are slidably disposed on the outer side of the housing.

[0012] Preferably, a vertical slide bar is fixedly connected to the inner wall of the housing, and the movable seat is slidably disposed on the outside of the vertical slide bar.

[0013] Preferably, the fine-tuning assembly includes a horizontal adjustment seat, a horizontal lead screw, a vertical adjustment seat, and a vertical lead screw. The horizontal adjustment seat is slidably disposed on the outside of the fixed plate. The horizontal lead screw is rotatably disposed between the horizontal adjustment seat and the fixed plate. Rotating the horizontal lead screw can drive the horizontal adjustment seat to move horizontally. The vertical adjustment seat is slidably disposed on the outside of the horizontal adjustment seat. The vertical lead screw is rotatably disposed between the vertical adjustment seat and the horizontal adjustment seat. Rotating the vertical lead screw can drive the vertical adjustment seat to move vertically. The welding machine is mounted on the outside of the vertical adjustment seat.

[0014] Preferably, the clamping unit includes a clamping seat, a slider, a clamping cylinder, a clamping slide bar, and a moving block. The slider is fixedly connected to the bottom of the clamping seat, and the clamping seat is slidably disposed above the slide rail via the slider. The clamping cylinder and the clamping slide bar are both fixedly installed above the clamping seat. The moving block is fixedly installed at the bottom of the second welding unit, and the second welding unit is slidably disposed above the clamping slide bar via the moving block. The end of the output shaft of the clamping cylinder is fixedly connected to the second welding unit.

[0015] Preferably, the clamping seat can be fixed relative to the slide rail by bolts.

[0016] Preferably, a support block is fixedly connected above the clamping seat, a movable bar is installed on the top of the support block, and two support wheels are rotatably arranged on the top of the movable bar, which can support the end of the pipe fitting.

[0017] Preferably, the side of the movable bar is provided with an adjustment groove, and a bolt is connected between the adjustment groove and the support block. The movable bar can adjust its relative position with the support block by means of the adjustment groove and the bolt.

[0018] Its beneficial effects are as follows:

[0019] This automatic pipe welding machine uses a positioning and rotating component to drive the pipe to rotate at a uniform speed, ensuring the uniformity of the circumferential weld. The vertical moving component, together with the fine-tuning component, can drive the welding machine to perform multi-dimensional position adjustments. The fine-tuning component enables precise position adjustment of the welding machine, accurately aligning it with the center of the weld and reducing defects such as misalignment and undercut. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the second welding unit and the clamping unit of this utility model;

[0023] Figure 3 This is a schematic diagram of the clamping unit of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the second welding unit of this utility model.

[0025] In the diagram: 1. Frame; 11. Slide rail; 2. First welding unit; 3. Second welding unit; 31. Base; 32. Positioning rotation assembly; 321. Rotating frame; 322. Servo motor; 323. Rotating disk; 324. Positioning rod; 33. Vertical movement assembly; 331. Housing; 332. Vertical cylinder; 333. Vertical slide bar; 334. Movable seat; 335. Fixed plate; 34. Welding machine; 35. Fine-tuning assembly; 351. Horizontal adjustment seat; 352. Horizontal lead screw; 353. Vertical adjustment seat; 354. Vertical lead screw; 4. Clamping unit; 41. Clamping seat; 42. Slider; 43. Clamping cylinder; 44. Clamping slide bar; 45. Moving block; 46. Support block; 47. Moving bar. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] This utility model discloses an automatic pipe welding machine, according to the attached... Figure 1 and attached Figure 4 As shown, the system includes a frame 1, with a first welding unit 2 and a second welding unit 3 mounted opposite each other on the top of the frame 1. The bottom of the second welding unit 3 is provided with a clamping unit 4 that drives it to move laterally, and the clamping unit 4 is slidably disposed above the frame 1. Both the first welding unit 2 and the second welding unit 3 include a base 31, a positioning and rotating assembly 32, a vertical moving assembly 33, a welding machine 34, and a fine-tuning assembly 35. The positioning and rotating assembly 32 and the vertical moving assembly 33 are both mounted on the base 31. The positioning and rotating assembly 32 fixes the end of the pipe and can drive the pipe to rotate. The vertical moving assembly 33 is connected to the welding machine 34 and the fine-tuning assembly 35. The vertical moving assembly 33, in conjunction with the fine-tuning assembly 35, can drive the welding machine 34 to perform multi-dimensional position adjustments.

[0029] The positioning and rotating component 32 drives the pipe to rotate at a uniform speed to ensure the uniformity of the circumferential weld. The vertical moving component 33, together with the fine-tuning component 35, can drive the welding machine 34 to perform multi-dimensional position adjustments. The fine-tuning component 35 enables the welding machine 34 to be precisely positioned and accurately aligned with the weld center, reducing defects such as misalignment and undercut.

[0030] According to the appendix Figure 1 As shown, a slide rail 11 is further fixedly installed on the top of the frame 1.

[0031] According to the appendix Figure 4 As shown, the positioning and rotating assembly 32 further includes a rotating frame 321, a servo motor 322, a rotating disk 323, and a positioning rod 324. The rotating frame 321 is fixedly installed above the base 31. The servo motor 322 is fixedly installed on the outside of the rotating frame 321. The output shaft of the servo motor 322 passes through the rotating frame 321 and is fixedly connected to the rotating disk 323. One end of the positioning rod 324 is fixedly connected to the geometric center of the rotating disk 323, and the other end of the positioning rod 324 is inserted into the inside of the end of the pipe.

[0032] According to the appendix Figure 4As shown, the vertical moving assembly 33 further includes a housing 331, a vertical cylinder 332, a movable seat 334, and a fixed plate 335. The housing 331 is fixedly installed above the base 31. The vertical cylinder 332 is embedded between the base 31 and the bottom of the housing 331. The movable seat 334 is slidably disposed on the inner wall of the housing 331. The top end of the output shaft of the vertical cylinder 332 is fixedly connected to the movable seat 334, and the end of the movable seat 334 extends outward through the housing 331 and is fixedly connected to the fixed plate 335. A protective plate is provided above the fixed plate 335, and the fixed plate 335 and the protective plate are slidably disposed on the outside of the housing 331.

[0033] According to the appendix Figure 4 As shown, a vertical slide bar 333 is fixedly connected to the inner wall of the housing 331, and the movable seat 334 is slidably disposed on the outside of the vertical slide bar 333.

[0034] According to the appendix Figure 4 As shown, the fine-tuning component 35 further includes a horizontal adjustment seat 351, a horizontal lead screw 352, a vertical adjustment seat 353, and a vertical lead screw 354. The horizontal adjustment seat 351 is horizontally slidably disposed on the outside of the fixed plate 335. The horizontal lead screw 352 is rotatably disposed between the horizontal adjustment seat 351 and the fixed plate 335. Rotating the horizontal lead screw 352 can drive the horizontal adjustment seat 351 to move horizontally. The vertical adjustment seat 353 is vertically slidably disposed on the outside of the horizontal adjustment seat 351. The vertical lead screw 354 is rotatably disposed between the vertical adjustment seat 353 and the horizontal adjustment seat 351. Rotating the vertical lead screw 354 can drive the vertical adjustment seat 353 to move vertically. The welding machine 34 is installed on the outside of the vertical adjustment seat 353.

[0035] According to the appendix Figure 2-3 As shown, the clamping unit 4 further includes a clamping seat 41, a slider 42, a clamping cylinder 43, a clamping slide bar 44, and a moving block 45. The slider 42 is fixedly connected to the bottom of the clamping seat 41, and the clamping seat 41 is slidably disposed above the slide rail 11 via the slider 42. The clamping cylinder 43 and the clamping slide bar 44 are both fixedly installed above the clamping seat 41. The moving block 45 is fixedly installed at the bottom of the second welding unit 3, and the second welding unit 3 is slidably disposed above the clamping slide bar 44 via the moving block 45. The end of the output shaft of the clamping cylinder 43 is fixedly connected to the second welding unit 3.

[0036] The clamping seat 41 can be fixed relative to the slide rail 11 by bolts.

[0037] A support block 46 is fixedly connected above the clamping seat 41. A movable bar 47 is installed on the top of the support block 46. Two support wheels are rotatably arranged on the top of the movable bar 47, which can support the end of the pipe fitting.

[0038] The side of the movable bar 47 is provided with an adjustment groove, and the adjustment groove is connected to the support block 46 by a bolt. The movable bar 47 can adjust its relative position to the support block 46 by means of the adjustment groove and the bolt.

[0039] According to the length of the pipe to be welded, loosen the fixing bolts of the clamping seat 41, adjust the position of the second welding unit 3 by sliding the slider 42 along the slide rail 11, and lock the bolts again after it is in place.

[0040] The pipe fitting is placed at the positioning and rotating assembly 32 of the first welding unit 2 and the second welding unit 3. The clamping cylinder 43 is used to push the second welding unit 3 to move laterally along the clamping slide bar 44, so that the positioning rod 324 is inserted into the inner hole of the end of the pipe fitting, and the initial fixation is achieved by the rotating disk 323.

[0041] Adjust the height of the movable strip 47 on the support block 46 so that the support wheel fits against the outer wall of the pipe fitting, providing auxiliary support to prevent sagging;

[0042] Start the vertical cylinder 332 of the vertical moving component 33 to drive the movable seat 334 to rise and fall along the vertical slide bar 333, thereby moving the welding machine 34 to approximately the height of the circumferential seam;

[0043] Rotate the horizontal lead screw 352 and the vertical lead screw 354 of the fine adjustment component 35 to adjust the positions of the horizontal adjustment seat 351 and the vertical adjustment seat 353 respectively, so that the nozzle of the welding machine 34 is precisely aligned with the center of the circumferential seam.

[0044] The servo motors 322 of the first welding unit 2 and the second welding unit 3 are started simultaneously, driving the rotating disk 323 to rotate the pipe fittings;

[0045] The welding machine 34 generates an electric arc when powered on, and continuously welds the rotating circumferential seam until a full rotation is completed. The rotation angle is controlled by the encoder of the servo motor 322 to ensure the weld seam is closed.

[0046] After welding is completed, the welding machine 34 is powered off, the servo motor 322 stops rotating, the vertical cylinder 332 drives the welding machine 34 to rise and detach from the pipe fitting, the clamping cylinder 43 drives the second welding unit 3 to reset, and the welded pipe fitting is removed.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic pipe welding machine, comprising a frame (1), characterized in that, The first welding unit (2) and the second welding unit (3) are installed opposite each other on the top of the frame (1). The bottom of the second welding unit (3) is provided with a clamping unit (4) that drives it to move laterally. The clamping unit (4) is slidably arranged above the frame (1). The first welding unit (2) and the second welding unit (3) each include a base (31), a positioning and rotating component (32), a vertical moving component (33), a welding machine (34), and a fine-tuning component (35). The positioning and rotating component (32) and the vertical moving component (33) are both installed on the base (31). The positioning and rotating component (32) fixes the end of the pipe and can drive the pipe to rotate. The vertical moving component (33) is connected to the welding machine (34) and the fine-tuning component (35). The vertical moving component (33) cooperates with the fine-tuning component (35) to drive the welding machine (34) to perform multi-dimensional position adjustment.

2. The automatic pipe welding machine according to claim 1, characterized in that, A slide rail (11) is fixedly installed on the top of the frame (1).

3. The automatic pipe welding machine according to claim 1, characterized in that, The positioning and rotating assembly (32) includes a rotating frame (321), a servo motor (322), a rotating disk (323), and a positioning rod (324). The rotating frame (321) is fixedly installed above the base (31). The servo motor (322) is fixedly installed on the outside of the rotating frame (321). The output shaft of the servo motor (322) passes through the rotating frame (321) and is fixedly connected to the rotating disk (323). One end of the positioning rod (324) is fixedly connected to the geometric center of the rotating disk (323), and the other end of the positioning rod (324) is inserted into the inside of the end of the pipe.

4. The automatic pipe welding machine according to claim 1, characterized in that, The vertical moving assembly (33) includes a housing (331), a vertical cylinder (332), a movable seat (334), and a fixed plate (335). The housing (331) is fixedly installed above the base (31). The vertical cylinder (332) is embedded between the base (31) and the bottom of the housing (331). The movable seat (334) is slidably disposed on the inner wall of the housing (331). The top end of the output shaft of the vertical cylinder (332) is fixedly connected to the movable seat (334), and the end of the movable seat (334) extends outward through the housing (331) and is fixedly connected to the fixed plate (335). A protective plate is provided above the fixed plate (335), and the fixed plate (335) and the protective plate are slidably disposed on the outside of the housing (331).

5. An automatic pipe welding machine according to claim 4, characterized in that, A vertical slide bar (333) is fixedly connected to the inner wall of the housing (331), and the movable seat (334) is slidably disposed on the outside of the vertical slide bar (333).

6. An automatic pipe welding machine according to claim 4, characterized in that, The fine-tuning component (35) includes a horizontal adjustment seat (351), a horizontal lead screw (352), a vertical adjustment seat (353), and a vertical lead screw (354). The horizontal adjustment seat (351) is horizontally slidably disposed on the outside of the fixed plate (335). The horizontal lead screw (352) is rotatably disposed between the horizontal adjustment seat (351) and the fixed plate (335). Rotating the horizontal lead screw (352) can drive the horizontal adjustment seat (351) to move horizontally. The vertical adjustment seat (353) is vertically slidably disposed on the outside of the horizontal adjustment seat (351). The vertical lead screw (354) is rotatably disposed between the vertical adjustment seat (353) and the horizontal adjustment seat (351). Rotating the vertical lead screw (354) can drive the vertical adjustment seat (353) to move vertically. The welding machine (34) is installed on the outside of the vertical adjustment seat (353).

7. An automatic pipe welding machine according to claim 2, characterized in that, The clamping unit (4) includes a clamping seat (41), a slider (42), a clamping cylinder (43), a clamping slide bar (44), and a moving block (45). The slider (42) is fixedly connected to the bottom of the clamping seat (41). The clamping seat (41) is slidably disposed above the slide rail (11) via the slider (42). The clamping cylinder (43) and the clamping slide bar (44) are both fixedly installed above the clamping seat (41). The moving block (45) is fixedly installed at the bottom of the second welding unit (3). The second welding unit (3) is slidably disposed above the clamping slide bar (44) via the moving block (45). The end of the output shaft of the clamping cylinder (43) is fixedly connected to the second welding unit (3).

8. An automatic pipe welding machine according to claim 7, characterized in that, The clamping seat (41) can be fixed relative to the slide rail (11) by bolts.

9. An automatic pipe welding machine according to claim 7, characterized in that, A support block (46) is fixedly connected above the clamping seat (41). A movable strip (47) is installed on the top of the support block (46). Two support wheels are arranged on the top of the movable strip (47) to rotate relative to each other. The two support wheels can support the end of the pipe fitting.

10. An automatic pipe welding machine according to claim 9, characterized in that, The side of the movable bar (47) is provided with an adjustment groove, and a bolt is connected between the adjustment groove and the support block (46). The movable bar (47) can adjust its relative position with the support block (46) by means of the adjustment groove and the bolt.

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