A welding fixture suitable for pipes with different diameters

Abstract

The invention discloses a welding fixture suitable for pipe fittings of different diameters, comprising a driving adjustment structure, an adjusting clamping structure fixedly installed on the driving adjustment structure, and a driving welding structure is provided on one side of the driving adjustment structure, the driving adjustment structure comprises a base platform with a bearing block fixed on one side of the upper side, and a worm for rotation adjustment is provided between the bearing blocks, and the worms are installed and connected by a coupling, one end of the worm is fixed with a driving motor, and the driving motor is fixed to one side of the base platform, a bearing connecting plate is fixed on the base platform, and a first sector gear with a connecting shaft is provided between the bearing connecting plates, and a second sector gear is fixedly installed at one end of the connecting shaft, the second sector gear is meshed with the worm, and the first sector gear is fixedly installed with a first double-hole connecting plate via the connecting shaft. The welding fixture suitable for pipe fittings of different diameters can achieve rotation adjustment through the provided worm.

Description

Technical Field

[0001] The invention relates to the technical field of welding fixtures, in particular to a welding fixture suitable for pipes with different diameters. Background Art

[0002] In the butt welding of pipelines, the interfaces of the two pipelines need to be aligned, and then the welder uses a welding gun to weld the two pipelines. Before welding, the two pipelines need to be clamped and fixed with a clamp, and then welding is performed. During welding, the pipeline is difficult to fix due to the smoothness of its outer wall. The fixing of the pipeline shell by the mounting fixture is not stable, so the pipeline shell is easy to shake during welding, resulting in poor welding quality and often failing to achieve the expected welding effect. In addition, the existing pipeline welding clamps are difficult to adjust and cannot adapt to pipelines of different calibers. Summary of the invention

[0003] The purpose of the present invention is to provide a welding fixture suitable for pipes of different diameters in view of the deficiencies in the prior art, so as to solve the problem in the above background technology that the pipe passing through is difficult to fix due to the smoothness of its outer wall during welding, and the fixing of the pipe shell by the mounting tool is unstable, so that the pipe shell is easy to shake during welding, resulting in poor welding quality and often failing to achieve the expected welding effect. In addition, the existing pipe welding fixture is difficult to adjust and cannot adapt to pipes of different calibers.

[0004] To achieve the above object, the present invention provides the following technical solution: a welding fixture suitable for pipes of different diameters, comprising a driving adjustment structure, an adjusting clamping structure fixedly mounted on the driving adjustment structure, and a driving welding structure provided on one side of the driving adjustment structure;

[0005] The driving adjustment structure includes a base with a bearing block fixed on one side of the top, and a worm for rotation adjustment is provided between the bearing blocks, and the worms are connected by a coupling.

[0006] A driving motor is fixed to one end of the worm, and the driving motor is fixed to one side of the base platform.

[0007] By adopting the above technical solution, the worm is provided to achieve rotation adjustment.

[0008] Preferably, a bearing connecting plate is fixed on the base platform, and a first sector gear with a connecting shaft is provided between the bearing connecting plates, and a second sector gear is fixed through one end of the connecting shaft, and the second sector gear is meshingly connected to the worm.

[0009] By adopting the above technical solution, the bearing connecting plate is provided to achieve fixing and penetrating matching connection.

[0010] Preferably, the first sector gear is fixedly mounted with a first double-hole connecting plate via a connecting shaft, and the first double-hole connecting plate is rotatably connected to the second double-hole connecting plate via a connecting pin, while the second double-hole connecting plate is also rotatably connected to the through-hole groove plate via a connecting pin, and an adjustment plate fixedly connected to the adjustment clamping structure component is fixed on one side of the through-hole groove plate.

[0011] By adopting the above technical solution, relative meshing adjustment is achieved through the provision of the first sector gear.

[0012] Preferably, a guide slot is provided on one side of the base platform, and a sliding block is provided inside the guide slot for conveniently driving the welding structure parts to be installed and fixed.

[0013] By adopting the above technical solution, the sliding block is provided to achieve guided sliding adjustment.

[0014] Preferably, the adjusting clamping structure includes a bearing seat fixed to one side of the adjusting plate, and a connecting tube is matched with one side of the bearing seat, and an adjusting cylinder is fixed inside the connecting tube, a through hole recess block is welded and fixed on the surface of the connecting tube, and the through hole recess block is rotatably connected to one end of the third double-hole connecting plate through a connecting pin, and the other end of the third double-hole connecting plate is rotatably connected to the bottom of the adjusting clamping plate through a connecting pin and another through hole recess block.

[0015] By adopting the above technical solution, the bearing seat is arranged to achieve force rotation adjustment.

[0016] Preferably, a connecting ring is fixed to the output end of the regulating cylinder, and another through-hole recessed block is welded and fixed to the surface of the connecting ring, and the other through-hole recessed block is rotatably connected to another third double-hole connecting plate through a connecting pin.

[0017] By adopting the above technical solution, the inner and outer rings are welded and fixed by the provided connecting ring.

[0018] Preferably, the driving welding structure includes a connecting frame with a hollow structure inside, and a handwheel ball screw is rotatably installed inside the connecting frame, and a ball nut for driving adjustment is installed on the surface of the handwheel ball screw, a connecting plate with a groove is fixed on one side of the ball nut, and a control cylinder is fixed on one side of the connecting plate, and another through-hole recessed block is fixed to the output end of the control cylinder.

[0019] By adopting the above technical solution, control and regulation are achieved through the provided control cylinder.

[0020] Preferably, the other through-hole recessed block is mounted with a through-hole connecting plate by adjusting a connecting nut and a rotating connecting screw, and a laser welding gun, a rotating motor and a driving wheel are conveniently mounted on one side of the through-hole connecting plate.

[0021] By adopting the above technical solution, the contact-driven adjustment is achieved through the arranged driving wheel.

[0022] Preferably, two groups of the first double-hole connecting plates are provided, and a single group of the first double-hole connecting plates are staggered.

[0023] By adopting the above technical solution, the first double-hole connecting plate is provided to drive the rotation adjustment.

[0024] Compared with the prior art, the invention has the following beneficial effects: the welding fixture suitable for pipes with different diameters is

[0025] (1) This case sets up an adjustable clamping structure to solve the problem that the pipe is difficult to fix due to the smoothness of its outer wall during welding, and the fixing of the pipe shell by the mounting fixture is unstable, so the pipe shell is easy to shake during welding, resulting in poor welding quality and often failing to achieve the expected welding effect. In addition, the existing pipe welding clamp is difficult to adjust and cannot adapt to pipes of different calibers. When pipes of different diameters need to be clamped and welded, the operator controls the adjusting cylinder to drive the connecting ring to move. During the force movement of the connecting ring, the through-hole concave block and the third double-hole connecting plate drive the adjusting clamping plate to move. During the force movement of the adjusting clamping plate, the lifting interval distance of the adjusting clamping plate is changed, so that the adjusting clamping plate can be extended to different pipe inner walls to contact and clamp the pipe inner wall;

[0026] (2) By setting: a drive adjustment structure, the problem is solved that the existing welding fixture cannot adjust the driving of the welding fixture according to the length of the pipeline, which causes the welding fixture to be unable to clamp and weld pipelines of different lengths. When pipelines of different lengths need to be butt-welded, the operator controls the drive motor to drive the worm to work. When the worm is rotated under force, it drives the second sector gear to rotate under force. When the second sector gear is rotated under force, it drives the first sector gear and the first double-hole connecting plate to rotate under force through the connecting shaft. When the first double-hole connecting plate is rotated under force, the second double-hole connecting plate drives the adjustment plate to drive relative adjustment. When the adjustment plate is relatively driven under force, the relative driving distance of the adjustment clamping structure is changed, so that pipelines of different lengths can be clamped and welded;

[0027] (3) By setting: a driving welding structure, the problem that the clamp only has a clamping function and cannot drive the pipe fittings for rotational welding after clamping is solved, thereby improving the welding effect. After the pipe is clamped, the operator rotates the handwheel ball screw to drive the connecting plate to move under force. When the connecting plate moves under force, the driving wheel and the laser welding gun are driven to move synchronously under force. At this time, the operator drives the driving wheel to rotate under force by driving the driving cylinder to conduct the outer wall of the pipe through the rotating motor. When the rotating wheel rotates under force, it drives the pipe to rotate synchronously under force, thereby facilitating the rotational welding of the pipe. By changing the rotation inclination angle of the laser welding gun when rotating the connecting screw, it is convenient for the laser welding gun to weld the outer walls of pipes with different diameters.

[0028] (4) The guide groove and slider are provided in the dynamic adjustment structure to solve the problem that the driving welding structure cannot be adjusted left and right. When the pipeline welding position needs to be adjusted, the operator pushes the connection frame to drive the slider to move under force, thereby changing the left and right sliding interval distance of the connection frame, thereby changing the welding position of the laser welding gun on the outer wall of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the base, bearing block, worm, drive motor, bearing connecting plate, second sector gear, first double-hole connecting plate, second double-hole connecting plate, through-hole groove plate, adjustment plate, guide slide groove and slider of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the connecting shaft, the first sector gear and the first double-hole connecting plate of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the bearing seat, the connecting cylinder, the through-hole recessed block, the third double-hole connecting plate and the adjusting clamping plate of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the regulating cylinder, through-hole recessed block and connecting ring of the present invention;

[0034] Figure 6 This is a schematic diagram of the driving welding structure of the present invention.

[0035] In the figure: 1. driving adjustment structure; 101. base; 102. bearing block; 103. worm; 104. driving motor; 105. bearing connecting plate; 106. connecting shaft; 107. first sector gear; 108. second sector gear; 109. first double-hole connecting plate; 1010. second double-hole connecting plate; 1011. through-hole groove plate; 1012. adjusting plate; 1013. guide slide groove; 1014. slider; 2. adjusting clamping structure ; 201, bearing seat; 202, connecting tube; 203, adjusting cylinder; 204, through-hole recessed block; 205, third double-hole connecting plate; 206, adjusting clamping plate; 207, connecting ring; 3, driving welding structure; 301, connecting frame; 302, handwheel ball screw; 303, ball nut; 304, connecting plate; 305, control cylinder; 306, through-hole connecting plate; 307, laser welding gun; 308, rotating motor; 309, driving wheel. DETAILED DESCRIPTION

[0036] 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.

[0037] See also Figure 1-6 The present invention provides a technical solution: a welding fixture suitable for pipes with different diameters, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a driving adjustment structure 1, which includes a base 101 with a bearing block 102 fixed on one side of the top, and a worm 103 for rotation adjustment is passed through the bearing blocks 102, and the worms 103 are installed and connected by a coupling.

[0038] Furthermore, in the above scheme, a driving motor 104 is fixed at one end of the worm 103, and the driving motor 104 is fixed to one side of the base 101, wherein the above components constitute a driving rotating structure, and the driving rotating structure constituted by the above components can effectively drive the worm 103 to rotate synchronously.

[0039] The above scheme further comprises a bearing connecting plate 105 fixed on the base platform 101, and a first sector gear 107 with a connecting shaft 106 is provided between the bearing connecting plates 105, and a second sector gear 108 is fixed through one end of the connecting shaft 106, and the second sector gear 108 is meshingly connected to the worm 103, wherein two groups of first sector gears 107 are provided, and a single group of first sector gears 107 is relatively meshingly arranged, and the relative meshing installation arrangement of the diameter of the first sector gear 107 is utilized to effectively facilitate the first sector gear 107 to drive the first double-hole connecting plate 109 to rotate and drive and adjust.

[0040] The above scheme further comprises that the first sector gear 107 is fixedly mounted with a first double-hole connecting plate 109 via a connecting shaft 106, and the first double-hole connecting plate 109 is rotatably connected to the second double-hole connecting plate 1010 via a connecting pin, two groups of first double-hole connecting plates 109 are provided, and a single group of first double-hole connecting plates 109 is staggered, and the number of the above-mentioned components are installed and arranged in the same number as the number of the first sector gear 107, and when the above-mentioned components are installed and arranged in the same number, the second double-hole connecting plate 1010 is effectively driven to move synchronously under force, and when a single group of first double-hole connecting plates 109 is staggered, this not only reflects the practicality of the above-mentioned component installation arrangement, but also reflects the synchronous force rotation adjustability of the above-mentioned component installation arrangement, and at the same time, the second double-hole connecting plate 1010 is also rotatably connected to the through-hole groove plate 1011 via a connecting pin, and an adjustment plate 1012 fixedly connected to the adjustment clamping structure 2 components is fixed on one side of the through-hole groove plate 1011.

[0041] Furthermore, in the above scheme, a guide slot 1013 is provided on one side of the base platform 101, and a sliding block 1014 is provided inside the guide slot 1013 for conveniently driving and fixing the components of the welding structure 3.

[0042] like Figure 4 and Figure 5 As shown, an adjusting clamping structure 2 is fixedly installed on the driving adjusting structure 1, and the adjusting clamping structure 2 includes a bearing seat 201 fixed to one side of the adjusting plate 1012, and a connecting tube 202 is matched with one side of the bearing seat 201, and an adjusting cylinder 203 is fixed inside the connecting tube 202, and a through hole recess 204 is welded and fixed on the surface of the connecting tube 202, and the through hole recess 204 is rotatably connected to one end of the third double-hole connecting plate 205 through a connecting pin, and the other end of the third double-hole connecting plate 205 is rotatably connected to the bottom of the adjusting clamping plate 206 through a connecting pin and another through hole recess 204, wherein a single connecting tube 202 is provided with two groups of through hole recesses 204, and a single group of through hole recesses 204 is provided with two, and the six through hole recesses 204 are effectively used to adjust the relative lifting and rotation of the adjusting clamping plate 206 under force.

[0043] The above scheme further has a connecting ring 207 fixed on the output end of the adjusting cylinder 203, and another through-hole recess block 204 is welded and fixed on the surface of the connecting ring 207, and the other through-hole recess block 204 is rotatably connected to another third double-hole connecting plate 205 via a connecting pin, wherein the above-mentioned components constitute an adjusting structure, and when the adjusting structure constituted by the above-mentioned components is utilized, the horizontal telescopic interval distance of the connecting ring 207 is effectively changed, and the lifting interval distance of the adjusting clamping plate 206 is effectively changed synchronously.

[0044] like Figure 6 As shown, a driving welding structure 3 is provided on one side of the driving adjustment structure 1, and the driving welding structure 3 includes a connecting frame 301 with an internal hollow structure, and a handwheel ball screw 302 is rotatably installed inside the connecting frame 301, and a driving and adjusting ball nut 303 is installed on the surface of the handwheel ball screw 302, a connecting plate 304 with a groove is fixed on one side of the ball nut 303, and a control cylinder 305 is fixed on one side of the connecting plate 304, and another through-hole recessed block 204 is fixed on the output end of the control cylinder 305, wherein the above-mentioned components constitute a rotating lifting structure, and the rotating lifting structure constituted by the above-mentioned components is effectively used to change the lifting adjustment interval distance of the connecting plate 304.

[0045] Furthermore, in the above scheme, another through-hole recessed block 204 is installed with a through-hole connecting plate 306 by adjusting the connecting nut and the rotating connecting screw, and a laser welding gun 307, a rotating motor 308 and a driving wheel 309 are conveniently installed on one side of the through-hole connecting plate 306, wherein the pipeline drive clamping and pipeline drive welding steps and operation steps in this scheme are carefully stated in the beneficial effects of the case of this application, and thus will not be repeated too much in this specification.

[0046] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding fixture suitable for pipes of different diameters, characterized in that: It comprises a driving adjustment structure (1), an adjustment clamping structure (2) is fixedly mounted on the driving adjustment structure (1), and a driving welding structure (3) is provided on one side of the driving adjustment structure (1); The driving adjustment structure (1) comprises a base platform (101) with a bearing block (102) fixed on one side of the top, and a rotatably adjustable worm (103) is provided between the bearing blocks (102), and the worms (103) are connected by a coupling. A driving motor (104) is fixed to one end of the worm (103), and the driving motor (104) is fixed to one side of the base platform (101).

2. A welding fixture suitable for pipes of different diameters according to claim 1, characterized in that: A bearing connecting plate (105) is fixed on the base platform (101), and a first sector gear (107) with a connecting shaft (106) is provided between the bearing connecting plates (105), and a second sector gear (108) is fixed through one end of the connecting shaft (106), and the second sector gear (108) is meshedly connected with the worm (103).

3. A welding fixture suitable for pipes of different diameters according to claim 2, characterized in that: The first sector gear (107) is fixedly mounted with a first double-hole connecting plate (109) via a connecting shaft (106), and the first double-hole connecting plate (109) is rotationally connected to a second double-hole connecting plate (1010) via a connecting pin, while the second double-hole connecting plate (1010) is also rotationally connected to a through-hole groove plate (1011) via a connecting pin, and an adjustment plate (1012) fixedly connected to a component of the adjustment clamping structure (2) is fixed on one side of the through-hole groove plate (1011).

4. A welding fixture suitable for pipes of different diameters according to claim 1, characterized in that: A guide slot (1013) is provided on one side of the base platform (101), and a sliding block (1014) is provided inside the guide slot (1013) for conveniently driving and fixing the components of the welding structure (3).

5. The welding fixture suitable for pipes with different diameters according to claim 1, characterized in that: The adjusting clamping structure (2) comprises a bearing seat (201) fixed to one side of the adjusting plate (1012), and a connecting tube (202) is mounted on one side of the bearing seat (201), and an adjusting cylinder (203) is fixed inside the connecting tube (202), a through-hole recessed block (204) is welded and fixed on the surface of the connecting tube (202), and the through-hole recessed block (204) is rotatably connected to one end of a third double-hole connecting plate (205) via a connecting pin, and the other end of the third double-hole connecting plate (205) is rotatably connected to the bottom of the adjusting clamping plate (206) via a connecting pin and another through-hole recessed block (204).

6. A welding fixture suitable for pipes of different diameters according to claim 5, characterized in that: A connecting ring (207) is fixed to the output end of the regulating cylinder (203), and another through-hole recessed block (204) is welded and fixed to the surface of the connecting ring (207). Meanwhile, the other through-hole recessed block (204) is rotatably connected to another third double-hole connecting plate (205) via a connecting pin.

7. The welding fixture suitable for pipes with different diameters according to claim 1, characterized in that: The driving welding structure (3) comprises a connecting frame (301) with a hollow structure inside, and a hand wheel ball screw (302) is rotatably installed inside the connecting frame (301), and a driving and adjusting ball nut (303) is installed on the surface of the hand wheel ball screw (302), a connecting plate (304) with a groove is fixed on one side of the ball nut (303), and a control cylinder (305) is fixed on one side of the connecting plate (304), and another through hole concave block (204) is fixed on the output end of the control cylinder (305).

8. The welding fixture suitable for pipes with different diameters according to claim 7, characterized in that: The other through-hole recessed block (204) is mounted with a through-hole connecting plate (306) by means of a connecting nut and a rotating connecting screw, and a laser welding gun (307), a rotating motor (308) and a driving wheel (309) are conveniently mounted on one side of the through-hole connecting plate (306).

9. The welding fixture suitable for pipes with different diameters according to claim 3, characterized in that: Two groups of the first double-hole connecting plates (109) are provided, and a single group of the first double-hole connecting plates (109) is staggered.

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