Fixing device for welding

Abstract

The utility model discloses a fixing device for welding, which belongs to the technical field of welding equipment and comprises a welding base, two groups of positioning seats are symmetrically arranged on two sides of the top of the welding base, and through holes for inserting steel pipes are formed in the surfaces of the positioning seats. A positioning assembly for fixing the steel pipe in the inner cavity of the through hole is mounted at the top of the positioning seat; through the arrangement of the positioning assembly, two sets of steel pipes needing to be welded can be fixed in the through holes of the two sets of positioning seats, the driving assembly drives the two sets of positioned steel pipes to move inwards so that one ends of the steel pipes can make contact for welding, and in the steel pipe moving process, the straightening wheels arranged in a staggered mode can straighten the steel pipes; compared with the prior art, the device has the advantages that the steel pipes can be conveniently and quickly positioned and straightened so as to improve the welding effect, and the problem that gaps exist at the welding positions after welding due to the fact that the steel pipes are not straight in the butt joint process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a fixing device for welding. Background Art

[0002] With the progress and development of mankind, welding technology has gradually been used in various production and processing activities. Welding, also known as fusion, is a manufacturing process that joins metals or other materials such as plastics by heating, high temperature or high pressure.

[0003] A Chinese patent with publication (announcement) number CN220073718U discloses a welding fixture, including a workbench, a fixed clamping plate is fixedly provided on the top of the workbench, a sliding groove is opened on the top of the workbench, a movable clamping plate is slidably connected to the inner wall of the sliding groove, a rotating groove is opened on the back of the fixed clamping plate, a small fixed wheel is fixedly provided on the front of the fixed clamping plate, a correction groove is opened on the right side of the movable clamping plate, and a fixed clamp is fixedly provided on the top of the workbench. The welding fixture is provided by opening a circular groove on the inner wall of the small fixed wheel and providing a circular protrusion on the correction rod. The staff puts the steel pipe into the correction groove, and when the turntable is rotated, the small fixed wheel fixes the position of the correction rod, and the thread in the rotating groove and the sliding groove will make the movable clamping plate move closer to the fixed clamping plate, and the steel pipe is corrected by the pressure of the movable clamping plate and the fixed clamping plate.

[0004] The welding fixture involved in the above patent still has some obvious shortcomings in actual use. In this device, the steel pipe is straightened by the pressure of the movable clamping plate and the fixed clamping plate, but when moving the movable clamping plate, multiple sets of turntables need to be rotated at the same time, which makes the operation difficult. Therefore, we need to propose a welding fixture. Utility Model Content

[0005] The purpose of the utility model is to provide a fixing device for welding, which has the advantage of being able to position and straighten steel pipes more conveniently and quickly to improve welding effect, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a welding fixing device, including a welding base, two groups of positioning seats are symmetrically arranged on both sides of the top of the welding base, the surface of the positioning seat is provided with a through hole for inserting the steel pipe, the top of the positioning seat is equipped with a positioning assembly for fixing the steel pipe in the inner cavity of the through hole, the bottom of the welding base is equipped with a driving assembly for driving the two groups of positioning seats to move, and two groups of straightening assemblies for straightening the steel pipe are arranged on the top of the welding base and on the inner sides of the two groups of positioning seats, and the two groups of straightening assemblies are arranged near the center of the top of the welding base.

[0007] Preferably, the straightening assembly includes a plurality of groups of straightening wheels arranged in an alternating manner, the surfaces of the straightening wheels are provided with straightening grooves, the inner walls of the straightening grooves are in contact with the surface of the steel pipe, a rotating assembly is provided between the straightening wheels and the welding base, and the straightening wheels are rotatably mounted on the top of the welding base via the rotating assembly.

[0008] Preferably, the rotating assembly includes a rotating rod fixedly mounted on the top of the straightening wheel, a rotating hole is opened at the top of the welding base and at a corresponding position of the rotating rod, and the bottom end of the rotating rod passes through the straightening wheel and extends to the bottom of the straightening wheel and is rotatably connected to the inner wall of the rotating hole.

[0009] Preferably, the driving assembly includes fixing plates fixedly mounted on both sides of the bottom of the welding base, wherein a driving motor is fixedly mounted on one side of one group of the fixing plates, the output shaft of the driving motor passes through the fixing plate and extends to the inner sides of the two groups of fixing plates where a driving screw is fixedly mounted, two groups of sliding seats are matchedly mounted on the surface of the driving screw, and connecting plates are fixedly mounted on the tops of the two groups of sliding seats, and the tops of the connecting plates pass through the welding base and extend to the top of the welding base and are fixedly connected to the bottom of the positioning seat.

[0010] Preferably, the surface of the driving screw rod is provided with two groups of external threads, and the two groups of external threads are arranged in opposite directions.

[0011] Preferably, one end of the driving screw rod away from the driving motor is connected to a rotating seat, and one end of the driving screw rod is rotatably connected to the surface of one group of the fixing plates through the rotating seat.

[0012] Preferably, a movable groove adapted to the connecting plate is provided on the surface of the welding base, and the surface of the connecting plate is slidably connected to the inner wall of the movable groove.

[0013] Preferably, the positioning assembly includes a positioning tube fixedly mounted on the top of the positioning seat, the top of the positioning tube is threadedly connected with a positioning rod, and the bottom end of the positioning rod sequentially passes through the positioning tube and the positioning seat and extends to the inner cavity of the through hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can fix two groups of steel pipes to be welded in the through holes of the two groups of positioning seats through the setting of the positioning components, and drive the two groups of positioned steel pipes to move inwards through the driving components to make one ends of them contact in preparation for welding. In the process of moving the steel pipes, the staggered straightening wheels can straighten the steel pipes to prevent gaps in the welds after welding due to the uneven steel pipes during the docking process. Compared with the prior art, the setting of the device has the advantage of being able to position and straighten the steel pipes more conveniently and quickly to improve the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model rotating hole;

[0018] Figure 3 It is a structural schematic diagram of the drive assembly of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the positioning component of the utility model.

[0020] In the figure: 1. welding base; 2. positioning seat; 3. through hole; 4. straightening wheel; 5. straightening groove; 6. rotating rod; 7. rotating hole; 8. fixing plate; 9. driving motor; 10. driving screw rod; 11. sliding seat; 12. connecting plate; 13. external thread; 14. rotating seat; 15. moving groove; 16. positioning tube; 17. positioning rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 The utility model provides a fixing device for welding, including a welding base 1, two groups of positioning seats 2 are symmetrically arranged on both sides of the top of the welding base 1, the surface of the positioning seat 2 is provided with a through hole 3 for inserting a steel pipe, and a positioning component for fixing the steel pipe in the inner cavity of the through hole 3 is installed on the top of the positioning seat 2. The positioning component includes a positioning tube 16 fixedly installed on the top of the positioning seat 2, and the top of the positioning tube 16 is threadedly connected with a positioning rod 17, and the bottom end of the positioning rod 17 passes through the positioning tube 16 and the positioning seat 2 in sequence and extends to the inner cavity of the through hole 3.

[0023] By setting the positioning assembly, when it is necessary to weld two groups of steel pipes, the user can insert the two groups of steel pipes into the two groups of through holes 3 respectively, and then the user can tighten the positioning rod 17. The rotation of the positioning rod 17 will cause its bottom end to pass through the positioning tube 16 and the positioning seat 2 in turn and extend to the inner cavity of the through hole 3 and fit with the surface of the steel pipe, thereby fixing the steel pipe in the through hole 3 on the surface of the positioning seat 2.

[0024] Preferably, a driving assembly for driving the two groups of positioning seats 2 to move is installed at the bottom of the welding base 1, and the driving assembly includes fixed plates 8 fixedly installed on both sides of the bottom of the welding base 1, and a driving motor 9 is fixedly installed on one side of one group of fixed plates 8. The output shaft of the driving motor 9 passes through the fixed plate 8 and extends to the inner side of the two groups of fixed plates 8 where a driving screw 10 is fixedly installed. Two groups of slides 11 are installed on the surface of the driving screw 10. The tops of the two groups of slides 11 are fixedly installed with connecting plates 12. The top of the connecting plate 12 passes through the welding base 1 and extends to the top of the welding base 1 and is fixedly connected to the bottom of the positioning seat 2.

[0025] Through the setting of the drive component, after the two groups of steel pipes are positioned, the user can turn on the drive motor 9 through the external controller. The output shaft of the drive motor 9 will drive the drive screw 10 to rotate, and then drive the two groups of slides 11 to move. The movement of the slide 11 will drive the two groups of steel pipes to move through the connecting plate 12 and the positioning seat 2, so that one end of the two groups of steel pipes are butt-jointed.

[0026] Among them, two groups of external threads 13 are opened on the surface of the driving screw rod 10, and the two groups of external threads 13 are arranged in opposite directions. The end of the driving screw rod 10 away from the driving motor 9 is connected to a rotating seat 14. One end of the driving screw rod 10 is rotatably connected to the surface of one group of fixed plates 8 through the rotating seat 14. The surface of the welding base 1 is opened with a movable groove 15 adapted to the connecting plate 12, and the surface of the connecting plate 12 is slidably connected to the inner wall of the movable groove 15.

[0027] In this embodiment, two groups of external threads 13 in opposite directions are provided on the surface of the driving screw 10, which can drive the two groups of slide seats 11 to move in opposite directions. By setting the rotating seat 14, the rotation stability of the driving screw 10 can be improved, so that one end of the driving screw 10 can be rotatably installed on the surface of one group of fixed plates 8 through the rotating seat 14. The setting of the movable groove 15 can provide a moving space for the connecting plate 12, and the surface of the connecting plate 12 will slide on the inner wall of the movable groove 15 when moving.

[0028] It is worth mentioning that two groups of straightening components for straightening steel pipes are arranged at the top of the welding base 1 and on the inner sides of the two groups of positioning seats 2. The two groups of straightening components are arranged near the center of the top of the welding base 1. The straightening components include several groups of straightening wheels 4 arranged in an alternating manner. The surface of the straightening wheel 4 is provided with a straightening groove 5. The inner wall of the straightening groove 5 fits with the surface of the steel pipe. A rotating component is arranged between the straightening wheel 4 and the welding base 1. The straightening wheel 4 is rotatably installed on the top of the welding base 1 through the rotating component. The rotating component includes a rotating rod 6 fixedly installed on the top of the straightening wheel 4. A rotating hole 7 is provided at the top of the welding base 1 and at the corresponding position of the rotating rod 6. The bottom end of the rotating rod 6 passes through the straightening wheel 4 and extends to the bottom of the straightening wheel 4 and is rotatably connected to the inner wall of the rotating hole 7.

[0029] Through the setting of the straightening component, when the steel pipe moves, its surface will move in the inner cavity of the straightening groove 5, so that the straightening wheel 4 can rotate on the surface of the steel pipe. The pressure exerted by the straightening wheel 4 on the steel pipe enables the steel pipe to be straightened by the straightening wheel 4. Through the setting of the rotating component, the straightening wheel 4 can be rotatably installed on the top of the welding base 1. When the straightening wheel 4 rotates, it will drive the bottom end of the rotating rod 6 to rotate in the inner cavity of the rotating hole 7.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding fixture, comprising a welding base (1), characterized in that: Two groups of positioning seats (2) are symmetrically arranged on both sides of the top of the welding base (1); a through hole (3) for inserting a steel pipe is opened on the surface of the positioning seat (2); a positioning assembly for fixing the steel pipe in the inner cavity of the through hole (3) is installed on the top of the positioning seat (2); a driving assembly for driving the two groups of positioning seats (2) to move is installed on the bottom of the welding base (1); two groups of straightening assemblies for straightening the steel pipe are arranged on the top of the welding base (1) and on the inner sides of the two groups of positioning seats (2); the two groups of straightening assemblies are arranged near the center of the top of the welding base (1).

2. A welding fixture according to claim 1, characterized in that: The straightening assembly comprises a plurality of groups of straightening wheels (4) arranged in a staggered manner, the surfaces of the straightening wheels (4) being provided with straightening grooves (5), the inner walls of the straightening grooves (5) being in contact with the surface of the steel pipe, a rotating assembly being arranged between the straightening wheels (4) and the welding base (1), and the straightening wheels (4) being rotatably mounted on the top of the welding base (1) via the rotating assembly.

3. A welding fixture according to claim 2, characterized in that: The rotating assembly comprises a rotating rod (6) fixedly mounted on the top of the straightening wheel (4); a rotating hole (7) is provided at the top of the welding base (1) and at a position corresponding to the rotating rod (6); the bottom end of the rotating rod (6) passes through the straightening wheel (4) and extends to the bottom of the straightening wheel (4) to be rotatably connected to the inner wall of the rotating hole (7).

4. A welding fixture according to claim 1, characterized in that: The driving assembly comprises fixing plates (8) fixedly mounted on both sides of the bottom of the welding base (1), wherein a driving motor (9) is fixedly mounted on one side of one group of the fixing plates (8), an output shaft of the driving motor (9) passes through the fixing plate (8) and extends to the inner sides of the two groups of fixing plates (8) where a driving screw (10) is fixedly mounted, two groups of slide seats (11) are matchedly mounted on the surface of the driving screw seat (10), and a connecting plate (12) is fixedly mounted on the top of the two groups of slide seats (11), and the top of the connecting plate (12) passes through the welding base (1) and extends to the top of the welding base (1) and is fixedly connected to the bottom of the positioning base (2).

5. A welding fixture according to claim 4, characterized in that: The surface of the driving screw rod (10) is provided with two groups of external threads (13), and the two groups of external threads (13) are arranged in opposite directions.

6. A welding fixture according to claim 4, characterized in that: One end of the driving screw rod (10) away from the driving motor (9) is connected to a rotating seat (14), and one end of the driving screw rod (10) is rotatably connected to the surface of one group of the fixing plates (8) via the rotating seat (14).

7. A welding fixture according to claim 4, characterized in that: A movable groove (15) adapted to the connecting plate (12) is provided on the surface of the welding base (1), and the surface of the connecting plate (12) is slidably connected to the inner wall of the movable groove (15).

8. A welding fixture according to claim 1, characterized in that: The positioning assembly comprises a positioning tube (16) fixedly mounted on the top of the positioning seat (2); the top of the positioning tube (16) is threadedly connected to a positioning rod (17); the bottom end of the positioning rod (17) passes through the positioning tube (16) and the positioning seat (2) in sequence and extends to the inner cavity of the through hole (3).

Images