Precise pipe welding device and process
The precision pipe welding device addresses manual labor inefficiencies and diameter limitations by automating pipe rotation and alignment, enhancing welding precision and efficiency for both large and small-diameter pipes.
Patent Information
- Application Number
- CN202411385289.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2024-12-31
AI Technical Summary
Construction workers experience hand fatigue and low work efficiency during manual pipeline welding, and existing welding devices are limited in their ability to clamp pipes of varying diameters, preventing full-position welding of large and small-diameter pipes.
A precision pipe welding device with a base, brackets, synchronous wheels and belts, and a motor-driven system that allows for automatic rotation and alignment of pipes, enabling efficient and precise welding of pipes of different specifications.
The device improves welding efficiency by reducing manual labor and ensures precise alignment of pipe joints, allowing for seamless welding of pipes of varying diameters without worker fatigue.
Smart Images
Figure CN119216977A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pipe welding, and in particular to a precision pipe welding device and a process thereof. Background Art
[0002] Plasma welding is a welding process that uses a plasma arc as a heat source and melts the joints of two metals as filler material. Compared with other welding methods, plasma welding has the advantages of concentrated heat, small heat-affected zone, and small deformation of the workpiece. In addition, within a certain thickness range, the workpiece can be welded without beveling.
[0003] When using current pipelines, workers are often required to connect sections of pipelines into long-distance pipelines. During the connection process, some are fixed by welding, and some are connected by flanges. For welding fixation, the construction workers hold the welding handle and weld slowly. The pipeline needs to be welded in a circle. The workers weld manually, which can easily lead to hand fatigue and low work efficiency. When welding the bottom of the pipeline, the workers bend over and curl up their bodies. Sparks splashed during bottom welding can easily fall on the construction workers. There are certain shortcomings in the construction, which need to be improved. In addition, the pipe diameter clamped by the welding device is limited, which cannot meet the universal clamping requirements for large-diameter and small-diameter pipes, resulting in the inability to perform full-position welding of large-diameter and small-diameter pipes. For this reason, we propose a precision pipe welding device and a process thereof to solve the above problems. Summary of the invention
[0004] The purpose of the present invention is to provide a precision pipe welding device and process thereof, so as to solve the problem raised in the above background technology that construction workers hold the welding handle and weld slowly, the pipeline needs to be welded in a circle, and the workers weld manually, which easily leads to hand fatigue and low work efficiency.
[0005] To achieve the above object, the present invention provides the following technical solution: a precision pipe welding device, comprising a base,
[0006] A first bracket is fixedly installed on the upper side of the base, a fixing plate is fixedly installed on the left side of the first bracket, an electric telescopic rod is installed on the lower side of the fixing plate, a welding gun is fixedly installed on the telescopic end of the electric telescopic rod, and second brackets are fixedly installed on the upper sides of the left and right ends of the base, the first bracket is between the two groups of second brackets, and first synchronous wheels are rotatably installed in the left and right ends of the base, and second synchronous wheels are rotatably installed in the upper ends of the two groups of second brackets, and two groups of first synchronous belts are sleeved on the two groups of the first synchronous wheels and the two groups of second synchronous wheels. A rotating shaft is rotatably installed in the base, and the two groups of rotating shafts are fixedly connected to the two groups of first synchronous wheels. A motor is fixedly installed on the right side of the base, and the motor output shaft is fixedly connected to the rotating shaft. Locking components are arranged on the upper ends of the two groups of the second brackets and the two groups of second synchronous wheels, a lifting component is arranged in the first bracket, and a limiting component is arranged on the left end of the first bracket, and the limiting component is connected to the lifting component.
[0007] Preferably, the locking assembly comprises two groups of bidirectional screws, the two groups of bidirectional screws are rotatably mounted on the upper ends of the two groups of second brackets and the two groups of second synchronous wheels, the left and right opposite ends of the two groups of bidirectional screws are respectively connected with two groups of screw sleeves through threaded sleeves, four groups of first support rods are rotatably mounted on the four groups of screw sleeves, eight groups of clamping plates are hingedly mounted on the four groups of first support rods on the four groups of screw sleeves, the eight groups of clamping plates are divided into groups of four by four, the left and right opposite sides of the two groups of second synchronous wheels are respectively connected with nuts through threaded sleeves, the two groups of nuts are threadedly connected to the two groups of bidirectional screws, the left and right opposite sides of the eight groups of clamping plates are fixedly mounted with sliders, the left and right opposite sides of the upper ends of the two groups of second brackets are respectively provided with four groups of sliding grooves, and the eight groups of sliding grooves are slidably mounted in the eight groups of sliding grooves.
[0008] Preferably, the eight groups of sliders and the eight groups of slide grooves are all arranged in a T-shape, the eight groups of sliders are adapted to the inner walls of the eight groups of slide grooves, and the eight groups of slide grooves are arranged in a cross-shaped array.
[0009] Preferably, the lifting assembly includes two groups of movable grooves, which are opened in the left and right ends of the first bracket, a first screw is rotatably installed in the movable groove at the right end of the first bracket, a first connecting plate is slidably installed in the movable groove at the right end of the first bracket, the upper end of the first screw is inserted in the first connecting plate through a thread, and the front and rear ends of the first connecting plate are hingedly installed with second support rods, two groups of support plates are rotatably installed on the upper side of the right end of the first bracket, and the two groups of support plates are hinged to the lower sides of the two groups of second support rods.
[0010] Preferably, the limiting assembly includes a second screw, the second screw is rotatably installed in a movable groove at the left end of the first bracket, the lower end of the first screw is fixedly installed with a third synchronous wheel, the left end of the first bracket is rotatably installed with a fourth synchronous wheel, the third synchronous wheel and the fourth synchronous wheel are rotatably installed with a second synchronous belt, the upper side of the fourth synchronous wheel is fixedly installed with a first gear, the lower end of the second screw is fixedly installed with a second gear, the first gear is meshed with the second gear, a second connecting plate is slidably installed in the movable groove at the left end of the first bracket, and the third support rods are rotatably installed at the front and rear ends of the second connecting plate, and two groups of connecting rods are rotatably installed on the left end of the first bracket, the upper ends of the two groups of the third support rods are rotatably connected with the two groups of connecting rods, and the upper ends of the two groups of the connecting rods are fixedly installed with limiting plates, and the two groups of the connecting rods and the two groups of limiting plates are symmetrically arranged front and back.
[0011] Preferably, two groups of guide rods are fixedly installed in the two groups of movable grooves, and the four groups of guide rods are movably inserted in the front and rear ends of the first connecting plate and the second connecting plate.
[0012] Preferably, rollers are rotatably mounted on the inner walls of the front and rear opposite ends of the two groups of support plates and the front and rear symmetrical sides of the two groups of limit plates, and the surfaces of the multiple groups of rollers are provided with anti-slip grooves made of rubber material.
[0013] Preferably, the upper end openings of the two groups of support plates are smaller than the upper end openings of the two groups of connecting rods, and the two groups of support plates and the two groups of connecting rods are both arranged in an arc shape.
[0014] Preferably, a precision pipe welding process comprises the following steps:
[0015] S1. First, sleeve two groups of pipes on the eight groups of clamping plates at the upper ends of the two groups of second brackets, and then rotate the two groups of bidirectional screws to drive the four groups of screw sleeves and the sixteen groups of first support rods to expand and open the eight groups of clamping plates, and the eight groups of clamping plates are in contact with the inner wall of the pipe when expanded and opened, so as to fix the pipe, and then twist the two groups of nuts to fix the two groups of second synchronous wheels and the two groups of bidirectional screws, and butt the welding ends of the two groups of pipes;
[0016] S2, rotating the first screw to drive the third synchronous wheel, the fourth synchronous wheel, the second synchronous belt, the first gear, the second gear and the second screw to rotate, and when the first screw and the second screw rotate, the first connecting plate is driven to move up and the second connecting plate is driven to move down, and the first connecting plate and the second connecting plate slide through the two sets of second support rods and the two sets of third support rods respectively to expand or shrink the two sets of support plates and the two sets of connecting rods, so that while the two sets of support plates are supported by the pipes, the two sets of connecting rods and the two sets of limiting plates are fitted and limited to the welding ends of the two sets of pipes, so that the welding ends of the two sets of pipes are closely aligned;
[0017] S3. Start the welding gun. The output shaft of the welding gun drives the electric telescopic rod, two sets of first synchronous wheels, two sets of second synchronous wheels and two sets of first synchronous belts to rotate. The rotation of the two sets of second synchronous wheels drives the two sets of bidirectional screws, four sets of screw sleeves, eight sets of clamping plates and two sets of pipes to rotate, thereby completing the rotation of the pipes, making it easier for the welding gun on the first bracket to weld the pipes.
[0018] The beneficial effects of the present invention are:
[0019] (1) The present invention sleeves two groups of pipes on two groups of bidirectional screws respectively, and rotates the two groups of bidirectional screws to drive four groups of screw sleeves and sixteen groups of first support rods to expand and open eight groups of clamps, so that the eight groups of clamps are closely fitted with the inner walls of the two groups of pipes, and the pipes are docked and fixed. Pipes of different specifications and calibers can be fixed. The motor output shaft drives the rotating shaft, two groups of first synchronous wheels, two groups of second synchronous wheels and two groups of first synchronous belts to rotate, which can drive the pipes fixed on the two groups of bidirectional screws to rotate, thereby improving the welding efficiency of the two groups of pipes and avoiding workers squatting or lying down to check the welding on the lower side of the pipe welding place;
[0020] (2) The present invention drives the third synchronous wheel, the fourth synchronous wheel, the second synchronous belt, the first gear, the second gear, and the second screw to rotate by rotating the first screw, and the first screw and the second screw rotate to slide the first connecting plate and the second connecting plate through two groups of second support rods and two groups of third support rods to expand or shrink the two groups of support plates or two groups of connecting rods, so as to facilitate the lifting and alignment of the joints of pipes of different specifications, avoid the misalignment of the joints of the pipes during welding when the motor drives the pipes to rotate, and improve the precision and stability of the pipe welding points. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 It is a schematic front view of the structure of the present invention;
[0023] Figure 2 It is a schematic cross-sectional view of the structure of the present invention;
[0024] Figure 3 It is a schematic diagram of the front view and disassembly of the structure of the locking component in the present invention;
[0025] Figure 4 It is a schematic cross-sectional view of the structure of the first bracket in the present invention from the right side;
[0026] Figure 5 It is a schematic diagram of a left-side cross-section of the structure of the first bracket in the present invention;
[0027] Figure 6 It is a schematic front view of the structure of the lifting assembly and the limiting assembly in the present invention;
[0028] Figure 7 For the present invention Figure 2 A is a partial enlarged schematic diagram of the middle part.
[0029] In the figure: 1, base; 2, first bracket; 3, fixing plate; 4, electric telescopic rod; 5, welding gun; 6, second bracket; 7, first synchronous wheel; 8, second synchronous wheel; 9, first synchronous belt; 10, bidirectional screw; 11, screw sleeve; 12, first support rod; 13, clamping plate; 14, nut; 15, movable groove; 16, guide rod; 17, first screw; 18, second screw; 19, third synchronous wheel; 20, fourth synchronous wheel; 21, second synchronous belt; 22, first gear; 23, second gear; 24, rotating shaft; 25, first connecting plate; 26, second support rod; 27, supporting plate; 28, second connecting plate; 29, third support rod; 30, connecting rod; 31, limit plate; 32, roller; 33, slider; 34, slide groove; 35, motor. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.
[0031] See also Figure 1-7 The present invention provides an embodiment: a precision pipe welding device, comprising a base 1,
[0032] A first bracket 2 is fixedly installed on the upper side of the base 1, a fixed plate 3 is fixedly installed on the left side of the first bracket 2, an electric telescopic rod 4 is installed on the lower side of the fixed plate 3, a welding gun 5 is fixedly installed on the telescopic end of the electric telescopic rod 4, and a second bracket 6 is fixedly installed on the upper sides of the left and right ends of the base 1. The first bracket 2 is between the two groups of second brackets 6. First synchronous wheels 7 are rotatably installed in the left and right ends of the base 1, and second synchronous wheels 8 are rotatably installed in the upper ends of the two groups of second brackets 6. Two groups of first synchronous belts 9 are sleeved on the two groups of first synchronous wheels 7 and the two groups of second synchronous wheels 8. A rotating shaft 24 is rotatably installed in the base 1, and the two groups of rotating shafts 24 are fixedly connected to the two groups of first synchronous wheels 7. A motor 35 is fixedly installed on the right side of the base 1, and the output shaft of the motor 35 is fixed to the rotating shaft 24. The two ends of the pipes are aligned by the lifting assembly and the limiting assembly on the first bracket 2 to avoid misalignment during welding. Then, the motor 35 drives the rotating shaft 24, the two sets of first synchronous wheels 7, the two sets of second synchronous wheels 8, the two sets of first synchronous belts 9 and the locking assembly to rotate, so that the pipe fixed on the locking assembly can be rotated, so that the welding gun 5 on the left side of the first bracket 2 can weld the two sets of pipes together.
[0033] Further, the locking assembly includes two sets of bidirectional screws 10, which are rotatably mounted on the upper ends of the two sets of second brackets 6 and the two sets of second synchronous wheels 8. The left and right opposite ends of the two sets of bidirectional screws 10 are both connected with two sets of screw sleeves 11 through threaded sleeves, and four sets of first support rods 12 are rotatably mounted on the four sets of screw sleeves 11. Eight sets of splints 13 are hingedly mounted on the four sets of first support rods 12 on the four sets of screw sleeves 11. The eight sets of splints 13 are divided into groups of four and four. The left and right opposite sides of the two sets of second synchronous wheels 8 are both connected with nuts 14 through threaded sleeves. The two sets of nuts 14 are threadedly connected to the two sets of bidirectional screws 10, and the left and right opposite sides of the eight sets of splints 13 are fixedly installed with sliding Block 33, four groups of slide grooves 34 are opened on the left and right opposite sides of the upper ends of the two groups of second brackets 6, and eight groups of sliders 33 are slidably installed in the eight groups of slide grooves 34. This structure sleeves the two groups of pipes on the two groups of bidirectional screws 10, and then rotate the two groups of bidirectional screws 10 with four groups of screw sleeves 11 and sixteen groups of first support rods 12 to expand and open the eight groups of clamps 13, and the eight groups of clamps 13 fit with the inner wall of the pipe to complete the fixed docking of the pipe, and then rotate the two groups of nuts 14 to fix the two groups of bidirectional screws 10 with the two groups of second screws 18, so that the rotating shaft 24 drives the two groups of first synchronous wheels 7, the two groups of second synchronous wheels 8, the two groups of first synchronous belts 9 and the two groups of bidirectional screws 10 to rotate.
[0034] Furthermore, the eight groups of sliders 33 and the eight groups of slide grooves 34 are all T-shaped, the eight groups of sliders 33 are adapted to the inner walls of the eight groups of slide grooves 34, and the eight groups of slide grooves 34 are arranged in a cross-shaped array. This structure is based on the size and setting position of the inner walls of the eight groups of sliders 33 and the eight groups of slide grooves 34, so that when the eight groups of splints 13 are expanded and opened, the eight groups of sliders 33 are guided to slide in the eight groups of slide grooves 34, and the eight groups of sliders 33 are prevented from detaching from the eight groups of slide grooves 34 during sliding.
[0035] Furthermore, the lifting assembly includes two groups of movable grooves 15, which are opened in the left and right ends of the first bracket 2. A first screw 17 is rotatably installed in the movable groove 15 at the right end of the first bracket 2, and a first connecting plate 25 is slidably installed in the movable groove 15 at the right end of the first bracket 2. The upper end of the first screw 17 is inserted in the first connecting plate 25 through a thread, and the front and rear ends of the first connecting plate 25 are hingedly installed with second support rods 26. Two groups of support plates 27 are rotatably installed on the upper side of the right end of the first bracket 2, and the two groups of support plates 27 are hinged to the lower sides of the two groups of second support rods 26. This structure drives the first connecting plate 25 and the two groups of second support rods 26 to slide downward by rotating the first screw 17, and the two groups of second support rods 26 drive the two groups of support plates 27 to expand and open, so that the two groups of support plates 27 fit and lift the lower side of the pipe, which is convenient for lifting pipes of different specifications.
[0036] Further, the limiting assembly includes a second screw 18, which is rotatably mounted in the movable groove 15 at the left end of the first bracket 2, a third synchronous wheel 19 is fixedly mounted on the lower end of the first screw 17, a fourth synchronous wheel 20 is rotatably mounted in the left end of the first bracket 2, a second synchronous belt 21 is sleeved on the third synchronous wheel 19 and the fourth synchronous wheel 20, a first gear 22 is fixedly mounted on the upper side of the fourth synchronous wheel 20, a second gear 23 is fixedly mounted on the lower end of the second screw 18, the first gear 22 is meshed with the second gear 23, a second connecting plate 28 is slidably mounted in the movable groove 15 at the left end of the first bracket 2, and a third support rod 29 is rotatably mounted on the front and rear ends of the second connecting plate 28, and the first bracket 2 The left end of the second screw 17 is rotatably installed with two groups of connecting rods 30, and the upper ends of the two groups of third support rods 29 are rotatably connected to the two groups of connecting rods 30. The upper ends of the two groups of connecting rods 30 are fixedly installed with limit plates 31. The two groups of connecting rods 30 and the two groups of limit plates 31 are symmetrically arranged front to back. When the structure rotates the first screw 17, the first screw 17 drives the second screw 18 to rotate through the third synchronous wheel 19, the fourth synchronous wheel 20, the second synchronous belt 21, the first gear 22 and the second gear 23. The second screw 18 drives the second connecting plate 28 and the two groups of third support rods 29 to slide upward to slide the two groups of connecting rods 30 and the two groups of limit plates 31 closer together, so that the butt-jointed pipe mouths can be tightly fitted to avoid misalignment during welding.
[0037] Furthermore, two groups of guide rods 16 are fixedly installed in the two groups of movable grooves 15, and four groups of guide rods 16 are movably inserted in the front and rear ends of the first connecting plate 25 and the second connecting plate 28. This structure is based on the two groups of guide rods 16 of the two groups of movable grooves 15, which facilitates the front and rear ends of the first connecting plate 25 and the second connecting plate 28 to slide up and down parallel in the two groups of movable grooves 15.
[0038] Furthermore, rollers 32 are rotatably installed on the inner walls of the front and rear opposite ends of the two groups of support plates 27 and the front and rear symmetrical sides of the two groups of limiting plates 31. The surfaces of the multiple groups of rollers 32 are provided with anti-slip grooves made of rubber. This structure is based on the two groups of support plates 27 and the two groups of limiting plates 31. The rollers 32 are provided on the two groups of support plates 27 and the two groups of limiting plates 31, so that when the two groups of support plates 27 and the two groups of limiting plates 31 are fitted with the pipes, the pipes can rotate inside the two groups of support plates 27 and the two groups of limiting plates 31.
[0039] Furthermore, the upper end openings of the two groups of support plates 27 are smaller than the upper end openings of the two groups of connecting rods 30. The two groups of support plates 27 and the two groups of connecting rods 30 are both arranged in an arc shape. This structure is based on the opening sizes of the two groups of support plates 27 and the two groups of rollers 32. When the openings of the two groups of rollers 32 are reduced, the two groups of support plates 27 are expanded, which is convenient for the two groups of support plates 27 and the two groups of rollers 32 to lift the pipes and avoid misalignment.
[0040] Furthermore, a welding process for a precision pipe comprises the following steps:
[0041] S1. First, sleeve two groups of pipes on the eight groups of clamping plates 13 at the upper ends of the two groups of second brackets 6, and then rotate the two groups of bidirectional screws 10 to drive the four groups of screw sleeves 11 and the sixteen groups of first support rods 12 to expand and open the eight groups of clamping plates 13, and the eight groups of clamping plates 13 are in contact with the inner wall of the pipe when expanded and opened, so that the pipe can be fixed, and then twist the two groups of nuts 14 to fix the two groups of second synchronous wheels 8 and the two groups of bidirectional screws 10, and butt the welding ends of the two groups of pipes;
[0042] S2, rotating the first screw 17 drives the third synchronous wheel 19, the fourth synchronous wheel 20, the second synchronous belt 21, the first gear 22, the second gear 23 and the second screw 18 to rotate, and when the first screw 17 and the second screw 18 rotate, the first connecting plate 25 is driven to move up and the second connecting plate 28 is driven to move down, and the first connecting plate 25 and the second connecting plate 28 slide through the two sets of second support rods 26 and the two sets of third support rods 29 respectively to expand or shrink the two sets of support plates 27 and the two sets of connecting rods 30, so that when the two sets of support plates 27 and the pipes are supported, the two sets of connecting rods 30 and the two sets of limiting plates 31 fit and limit the welding ends of the two sets of pipes, so that the welding ends of the two sets of pipes are closely aligned;
[0043] S3, start the welding gun 5, the output shaft of the welding gun 5 drives the electric telescopic rod 4, two sets of first synchronous wheels 7, two sets of second synchronous wheels 8 and two sets of first synchronous belts 9 to rotate, and the rotation of the two sets of second synchronous wheels 8 drives the two sets of bidirectional screws 10, four sets of screw sleeves 11, eight sets of clamping plates 13 and two sets of pipes to rotate, so that the pipes can be rotated, which is convenient for the welding gun 5 on the first bracket 2 to weld the pipes.
[0044] Working principle: When welding pipes, Figure 2 , Figure 3 and Figure 7 As shown, firstly, two groups of pipes are sleeved on two groups of bidirectional screws 10, and the two groups of bidirectional screws 10 are rotated to drive the four groups of screw sleeves 11 to slide close, and the four groups of screw sleeves 11 slide close to drive the sixteen on the first support rod 12 to expand and open the eight groups of clamping plates 13, and when the eight groups of clamping plates 13 are opened, the eight groups of sliders 33 are driven to slide in the eight groups of slide grooves 34, and then the eight groups of clamping plates 13 are fitted with the inner walls of the two groups of pipes, so that the two groups of pipes can be fixed, and the two groups of nuts 14 are slidably sleeved on the two groups of bidirectional screws 10 and the two groups of second synchronous wheels 8, so that the two groups of second synchronous wheels 8 can be fixedly connected with the two groups of bidirectional screws 10, as shown in FIG. Figure 4 , Figure 5 and Figure 6 As shown, the pipe fixed on the second bracket 6 at the right end of the base 1 is placed on the two groups of support plates 27, and the first screw 17 is rotated. The first screw 17 drives the first connecting plate 25 to slide in the movable groove 15 at the right end of the first bracket 2. The first connecting plate 25 slides through the two groups of second support rods 26 to drive the two groups of support plates 27 to expand and open, so that the pipe fits tightly with the two groups of support plates 27. While the first screw 17 rotates, the third synchronous wheel 19, the fourth synchronous wheel 20, the second synchronous belt 21, the first gear 22 and the second gear 23 rotate. The rotation of the second gear 23 drives the second screw 18 to rotate. The rotation of the second screw 18 drives the second connecting plate 28 in the movable groove 1 at the left end of the first bracket 2 5, the second connecting plate 28 slides through the two sets of third support rods 29 to drive the two sets of connecting rods 30 to shrink, the two sets of connecting rods 30 drive the two sets of limit plates 31 to fit with the pipe joint, start the motor 35, the output shaft of the motor 35 drives the rotating shaft 24 to rotate, the rotation of the rotating shaft 24 drives the two sets of first synchronous wheels 7, the two sets of second synchronous wheels 8, the two sets of first synchronous belts 9 and the two sets of bidirectional screws 10 to rotate, the two sets of bidirectional screws 10 rotate and then drive the eight sets of clamping plates 13 to rotate, the pipe fixed on the eight sets of clamping plates 13 is rotated, the electric telescopic rod 4 drives the welding gun 5 to align with the pipe joint, and annular welding can be performed when the pipe rotates. The above is the entire working principle of the present invention.
[0045] In the description of the present application, it should be understood that the terms "front", "rear", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. A precision pipe welding device, comprising a base (1), characterized in that: A first bracket (2) is fixedly mounted on the upper side of the base (1), a fixed plate (3) is fixedly mounted on the left side of the first bracket (2), an electric telescopic rod (4) is mounted on the lower side of the fixed plate (3), a welding gun (5) is fixedly mounted on the telescopic end of the electric telescopic rod (4), second brackets (6) are fixedly mounted on the upper sides of both left and right ends of the base (1), the first bracket (2) is located between two groups of second brackets (6), first synchronous wheels (7) are rotatably mounted in the left and right ends of the base (1), second synchronous wheels (8) are rotatably mounted in the upper ends of both groups of second brackets (6), and the two groups of first synchronous wheels are rotatably mounted in the upper ends of both groups of second brackets (6). Two groups of first synchronous belts (9) are sleeved on the step wheel (7) and the two groups of second synchronous wheels (8); a rotating shaft (24) is rotatably installed in the base (1); the two groups of rotating shafts (24) are fixedly connected to the two groups of first synchronous wheels (7); a motor (35) is fixedly installed on the right side of the base (1); the output shaft of the motor (35) is fixedly connected to the rotating shaft (24); locking components are arranged at the upper ends of the two groups of the second brackets (6) and the two groups of the second synchronous wheels (8); a lifting component is arranged in the first bracket (2); a limiting component is arranged at the left end of the first bracket (2); and the limiting component is connected to the lifting component.
2. A precision pipe welding device according to claim 1, characterized in that: The locking assembly comprises two groups of bidirectional screws (10), the two groups of bidirectional screws (10) are rotatably mounted on the upper ends of the two groups of second brackets (6) and in the two groups of second synchronous wheels (8), the left and right opposite ends of the two groups of bidirectional screws (10) are respectively connected with two groups of screw sleeves (11) through thread sleeves, the four groups of screw sleeves (11) are rotatably mounted with four groups of first support rods (12), the four groups of first support rods (12) on the four groups of screw sleeves (11) are hingedly mounted with eight groups of clamping plates (13), and the eight clamping plates (13) are respectively connected with the four groups of first support rods (12) on the four groups of screw sleeves (11). The clamping plates (13) of the group are divided into groups of four and four, and the left and right opposite sides of the two groups of the second synchronous wheels (8) are connected with nuts (14) through threaded sleeves, and the two groups of nuts (14) are connected with the two groups of bidirectional screws (10) through threads. The left and right opposite sides of the eight groups of the clamping plates (13) are fixedly installed with sliders (33), and the left and right opposite sides of the upper ends of the two groups of the second brackets (6) are provided with four groups of sliding grooves (34), and the eight groups of the sliding grooves (33) are slidably installed in the eight groups of sliding grooves (34).
3. A precision pipe welding device according to claim 2, characterized in that: The eight groups of sliders (33) and the eight groups of slide grooves (34) are all arranged in a T shape. The eight groups of sliders (33) are matched with the inner walls of the eight groups of slide grooves (34). The eight groups of slide grooves (34) are arranged in a cross-shaped array.
4. The precision pipe welding device according to claim 1, characterized in that: The lifting assembly comprises two groups of movable grooves (15), the two groups of movable grooves (15) are arranged in the left and right ends of the first bracket (2), a first screw rod (17) is rotatably installed in the movable groove (15) at the right end of the first bracket (2), a first connecting plate (25) is slidably installed in the movable groove (15) at the right end of the first bracket (2), the upper end of the first screw rod (17) is inserted into the first connecting plate (25) through a thread, the front and rear ends of the first connecting plate (25) are hingedly installed with second support rods (26), two groups of support plates (27) are rotatably installed on the upper side of the right end of the first bracket (2), and the two groups of support plates (27) are hingedly connected to the lower sides of the two groups of second support rods (26).
5. A precision pipe welding device according to claim 4, characterized in that: The limiting assembly comprises a second screw rod (18), the second screw rod (18) is rotatably mounted in a movable groove (15) at the left end of the first bracket (2), a third synchronous wheel (19) is fixedly mounted at the lower end of the first screw rod (17), a fourth synchronous wheel (20) is rotatably mounted in the left end of the first bracket (2), a second synchronous belt (21) is sleeved on the third synchronous wheel (19) and the fourth synchronous wheel (20), a first gear (22) is fixedly mounted on the upper side of the fourth synchronous wheel (20), a second gear (23) is fixedly mounted on the lower end of the second screw rod (18), and the The first gear (22) is meshed with the second gear (23); a second connecting plate (28) is slidably installed in the movable groove (15) at the left end of the first bracket (2); third supporting rods (29) are rotatably installed at the front and rear ends of the second connecting plate (28); two groups of connecting rods (30) are rotatably installed at the left end of the first bracket (2); the upper ends of the two groups of third supporting rods (29) are rotatably connected to the two groups of connecting rods (30); the upper ends of the two groups of connecting rods (30) are fixedly installed with limiting plates (31); the two groups of connecting rods (30) and the two groups of limiting plates (31) are symmetrically arranged front to back.
6. A precision pipe welding device according to claim 4, characterized in that: Two groups of guide rods (16) are fixedly installed in the two groups of movable grooves (15), and four groups of guide rods (16) are movably inserted in the front and rear ends of the first connecting plate (25) and the second connecting plate (28).
7. A precision pipe welding device according to claim 4, characterized in that: Rollers (32) are rotatably mounted on the inner walls of the front and rear opposite ends of the two groups of support plates (27) and on the front and rear symmetrical sides of the two groups of limit plates (31), and the surfaces of the multiple groups of rollers (32) are provided with anti-skid patterns made of rubber material.
8. The precision pipe welding device according to claim 4, characterized in that: The upper end openings of the two groups of support plates (27) are smaller than the upper end openings of the two groups of connecting rods (30), and the two groups of support plates (27) and the two groups of connecting rods (30) are both arranged in an arc shape.
9. A precision pipe welding process, applicable to a precision pipe welding device as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1. First, two groups of pipes are sleeved on the eight groups of clamping plates (13) at the upper ends of the two groups of second brackets (6), and then the two groups of bidirectional screws (10) are rotated to drive the four groups of screw sleeves (11) and the sixteen groups of first support rods (12) to expand and open the eight groups of clamping plates (13), and the eight groups of clamping plates (13) are in contact with the inner wall of the pipe when expanded and opened, so that the pipe can be fixed, and then the two groups of nuts (14) are twisted to fix the two groups of second synchronous wheels (8) and the two groups of bidirectional screws (10), and the welding ends of the two groups of pipes are butt-jointed; S2, rotating the first screw rod (17) to drive the third synchronous wheel (19), the fourth synchronous wheel (20), the second synchronous belt (21), the first gear (22), the second gear (23) and the second screw rod (18) to rotate, and when the first screw rod (17) and the second screw rod (18) rotate, the first connecting plate (25) is driven to move upward and the second connecting plate (28) is driven to move downward, and the first connecting plate (25) and the second connecting plate (28) slide through the two groups of second support rods (26) and the two groups of third support rods (29) respectively to expand or shrink the two groups of support plates (27) and the two groups of connecting rods (30), so that when the two groups of support plates (27) and the pipes are supported, the two groups of connecting rods (30) and the two groups of limiting plates (31) are fitted and limited to the welding ends of the two groups of pipes, so that the welding ends of the two groups of pipes are closely aligned; S3, start the welding gun (5), the output shaft of the welding gun (5) drives the electric telescopic rod (4), two sets of first synchronous wheels (7), two sets of second synchronous wheels (8) and two sets of first synchronous belts (9) to rotate, and the two sets of second synchronous wheels (8) drive the two sets of bidirectional screws (10), four sets of screw sleeves (11), eight sets of clamping plates (13) and two sets of pipes to rotate, so that the pipes can be rotated, which is convenient for the welding gun (5) on the first bracket (2) to weld the pipes.