Aligning and positioning device for metal welding

By designing an alignment positioning device for metal welding, the cylinder, clamp and pneumatic motor are used to achieve accurate alignment of metal pipes, and through a synchronous rotating mounting frame and transmission wheel system, all-round uniform welding is achieved, which solves the problems of weld distortion and low working efficiency during welding.

CN222680064UActive Publication Date: 2025-03-28XINJIANG TIANHONG HUAXIN MECHANICAL EQUIP MFG CO LTD
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Patent Information

Application Number
CN202420730095.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-10
Publication Date
2025-03-28
Estimated Expiration
2034-04-10

AI Technical Summary

Technical Problem

In the existing metal welding technology, weld distortion is prone to occur during the welding process, and all-round welding cannot be achieved, and the work efficiency is low.

Method used

An alignment positioning device is designed, including a base, mounting frame, fixing rod, telescopic rod, clamp and cylinder. The cylinder drives the telescopic rod to slide, and the clamp moves inwardly to the fixed metal pipe, and the pneumatic motor drives the threaded rod to rotate, pushing the fixed rod and telescopic rod to slide inwardly to achieve accurate alignment of the metal pipe. At the same time, the two sets of mounting frames are rotated simultaneously by mounting rods, belts and transmission wheels, driving the metal pipes and welds to rotate simultaneously, achieving all-round welding.

Benefits of technology

Accurate alignment of metal pipes is achieved, welding errors are reduced, welds are avoided, and welding work efficiency is improved, achieving all-round uniform welding.

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Abstract

The utility model discloses an aligning and positioning device for metal welding, which comprises a base, two groups of mounting racks are arranged above the base, the two groups of mounting racks are symmetrically distributed, a fixing rod is arranged on the mounting racks, a telescopic rod is arranged in the fixing rod, two sides of the telescopic rod are provided with limiting blocks, and the limiting blocks are arranged on two sides of the telescopic rod. The telescopic rod is slidably connected with the fixing rod through the limiting block, an air cylinder is arranged in the fixing rod, the telescopic rod is connected with the output end of a piston rod of the air cylinder, four sets of symmetrically-distributed clamping plates are arranged on the telescopic rod, and a first connecting rod and a second connecting rod are arranged between the clamping plates and the telescopic rod. By arranging the fixing rod, the telescopic rod and the four sets of clamping plates, the metal pipes are fixed to the positions with the axis of the fixing rod as the center, so that accurate butt joint of the two sets of metal pipes is guaranteed, errors of the butt joint position of the two sets of metal pipes are reduced, and welding seam distortion in the welding process is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of metal welding, in particular to an alignment and positioning device for metal welding. Background Art

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that combines metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. There are many sources of energy for modern welding, including gas flame, arc, laser, electron beam, friction and ultrasonic waves. Metal pipe welding is more common in the metal pipe processing process. Usually, two sections of metal pipes need to be connected together by welding after processing or installation.

[0003] In the prior art, when welding two sets of metal pipes, workers are required to manually align the welding points. This method has certain errors and can easily cause the weld to be distorted during the welding process, thereby affecting the metal welding effect. In addition, the prior art cannot perform all-round welding on the butted metal pipes at one time, and the metal pipes need to be rotated multiple times, resulting in low welding efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide an alignment and positioning device for metal welding to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an alignment and positioning device for metal welding, comprising a base, a mounting frame is provided above the base, the mounting frame is provided with two groups of mounting frames, the two groups of mounting frames are symmetrically distributed, a fixed rod is provided on the mounting frame, a telescopic rod is provided in the fixed rod, limit blocks are provided on both sides of the telescopic rod, the telescopic rod is slidably connected to the fixed rod through the limit blocks, a cylinder is provided in the fixed rod, the telescopic rod is connected to the output end of the cylinder piston rod, four groups of symmetrically distributed clamps are provided on the telescopic rod, and a first connecting rod and a second connecting rod are provided between the clamps and the telescopic rod.

[0006] As a further preferred embodiment of the present technical solution, the left end of the first connecting rod is slidably connected to the clamping plate, the right end of the first connecting rod is rotationally connected to the fixed rod, and the two ends of the second connecting rod are rotationally connected to the clamping plate and the telescopic rod respectively.

[0007] As a further preferred embodiment of the present technical solution, the clamping plate is provided with two groups of symmetrically distributed first clamping blocks, and the two groups of the first clamping blocks are rotatably connected to the clamping plate through a rotating shaft, and the first clamping block is provided with two groups of symmetrically distributed second clamping blocks, and the two groups of the second clamping blocks are rotatably connected to the first clamping block through a rotating shaft.

[0008] As a further preferred embodiment of the present technical solution, the fixing rod is slidably connected to the mounting frame, a threaded rod is provided in the mounting frame, a motor is provided in the mounting frame, the threaded rod passes through the mounting frame and is rotatably connected to the mounting frame, the threaded rod is connected to the output end of the motor, and the threaded rod passes through the fixing rod and is threadedly connected to the fixing rod.

[0009] As a further preferred embodiment of the present technical solution, the two groups of mounting frames are rotatably connected to the base via bearings, the two groups of mounting frames are sleeved with a first transmission wheel, two groups of second transmission wheels are arranged above the base, the two groups of second transmission wheels are distributed corresponding to the first transmission wheels, two groups of symmetrically distributed belts are arranged on the base, the two groups of second transmission wheels are fixedly connected via a mounting rod, and a motor is arranged on the base.

[0010] As a further preferred embodiment of the present technical solution, the belt is respectively connected to the first transmission wheel and the second transmission wheel, the two ends of the mounting rod respectively pass through the base and are rotatably connected to the base, and the right end of the mounting rod is connected to the output end of the motor.

[0011] The utility model provides an alignment and positioning device for metal welding, which has the following beneficial effects:

[0012] (1) The utility model fixes the metal pipe at a position centered on the axis of the fixed rod by setting a fixed rod, a telescopic rod and four groups of clamps, thereby ensuring the accurate docking of the two groups of metal pipes, reducing the error at the docking point of the two groups of metal pipes, and avoiding distortion of the weld during welding; the telescopic rod is driven to slide by the cylinder, so that the first connecting rod and the second connecting rod respectively drive the four groups of clamps to move inward synchronously, and the metal pipe between the four groups of clamps is fixed at a position centered on the axis of the fixed rod, and then the pneumatic motor drives the threaded rod to rotate, pushing the fixed rod to drive the telescopic rod and the metal pipe to slide inward. Since the two groups of fixed rods and the mounting frame are at the same axial position, the welding ends of the two groups of metal pipes are accurately aligned, which is convenient for welding work, and the first clamp block and the second clamp block on the clamp plate can both rotate. When the clamp plate interacts with the metal pipe, the first clamp block and the second clamp block rotate under pressure and fit against the outer wall of the metal pipe, thereby ensuring that the clamp plate firmly fixes the metal pipe.

[0013] (2) The utility model enables the two groups of mounting frames to rotate synchronously by setting mounting rods, belts, a first transmission wheel and a second transmission wheel, thereby driving the two groups of fixing rods and the telescopic rods and metal pipes on the fixing rods to rotate synchronously respectively. When the two groups of metal pipes rotate synchronously, the welds rotate synchronously therewith, which makes it convenient for the workers to perform all-round and uniform welding on the two groups of metal pipes without moving the welding gun position, thereby improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the installation rod of the utility model;

[0016] Figure 3 It is a structural schematic diagram of a fixing rod of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the splint of the utility model;

[0018] In the figure: 1. base; 2. mounting frame; 3. first transmission wheel; 4. second transmission wheel; 5. mounting rod; 6. motor; 7. belt; 8. fixing rod; 9. threaded rod; 10. motor; 11. telescopic rod; 12. limit block; 13. cylinder; 14. clamp; 15. first connecting rod; 16. second connecting rod; 17. first clamp block; 18. second clamp block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, an alignment and positioning device for metal welding includes a base 1, a mounting frame 2 is arranged above the base 1, the number of the mounting frames 2 is set in two groups, the two groups of mounting frames 2 are symmetrically distributed, a fixed rod 8 is arranged on the mounting frame 2, a telescopic rod 11 is arranged in the fixed rod 8, limit blocks 12 are arranged on both sides of the telescopic rod 11, the telescopic rod 11 is slidably connected to the fixed rod 8 through the limit blocks 12, a cylinder 13 is arranged in the fixed rod 8, the telescopic rod 11 is connected to the output end of the piston rod of the cylinder 13, four groups of symmetrically distributed clamping plates 14 are arranged on the telescopic rod 11, a first connecting rod 15 and a second connecting rod 16 are arranged between the clamping plate 14 and the telescopic rod 11, the left end of the first connecting rod 15 is slidably connected to the clamping plate 14, and the first The right end of the connecting rod 15 is rotatably connected to the fixed rod 8, and the two ends of the second connecting rod 16 are rotatably connected to the clamp plate 14 and the telescopic rod 11 respectively. The clamp plate 14 is provided with two groups of symmetrically distributed first clamps 17, and the two groups of first clamps 17 are rotatably connected to the clamp plate 14 through a rotating shaft. The first clamp block 17 is provided with two groups of symmetrically distributed second clamps 18, and the two groups of second clamps 18 are rotatably connected to the first clamp block 17 through a rotating shaft. The fixed rod 8 is slidably connected to the mounting frame 2, and a threaded rod 9 is provided in the mounting frame 2. A motor 10 is provided in the mounting frame 2, and the threaded rod 9 passes through the mounting frame 2 and is rotatably connected to the mounting frame 2. The threaded rod 9 is connected to the output end of the motor 10, and the threaded rod 9 passes through the fixed rod 8 and is threadedly connected to the fixed rod 8.

[0021] By setting the fixed rod 8, the telescopic rod 11 and the four groups of clamps 14, the metal pipe is fixed at a position centered on the axis of the fixed rod 8, thereby ensuring the accurate docking of the two groups of metal pipes, reducing the error at the docking point of the two groups of metal pipes, and avoiding the distortion of the weld during welding; the telescopic rod 11 is driven to slide by the cylinder 13, so that the first connecting rod 15 and the second connecting rod 16 respectively drive the four groups of clamps 14 to move inward synchronously, and the metal pipe between the four groups of clamps 14 is fixed at a position centered on the axis of the fixed rod 8, and then the pneumatic motor 10 drives the threaded rod 9 to rotate, and pushes the fixed rod 8 to drive the telescopic rod 11 and the metal pipe to slide inward. Since the two groups of fixed rods 8 and the mounting frame 2 are at the same axis position, the welding ends of the two groups of metal pipes are accurately aligned, which is convenient for welding work, and the first clamp block 17 and the second clamp block 18 on the clamp plate 14 can both rotate. When the clamp plate 14 interacts with the metal pipe, the first clamp block 17 and the second clamp block 18 rotate under pressure and fit the outer wall of the metal pipe, thereby ensuring that the clamp plate 14 firmly fixes the metal pipe.

[0022] like Figure 1 and Figure 2 As shown, the two groups of mounting frames 2 are rotatably connected to the base 1 through bearings, the two groups of mounting frames 2 are sleeved with a first transmission wheel 3, two groups of second transmission wheels 4 are arranged above the base 1, the two groups of second transmission wheels 4 are distributed corresponding to the first transmission wheel 3, two groups of symmetrically distributed belts 7 are arranged on the base 1, the two groups of second transmission wheels 4 are fixedly connected by a mounting rod 5, a motor 6 is arranged on the base 1, the belt 7 is transmission-connected to the first transmission wheel 3 and the second transmission wheel 4 respectively, both ends of the mounting rod 5 respectively pass through the base 1 and are rotationally connected to the base 1, and the right end of the mounting rod 5 is connected to the output end of the motor 6.

[0023] By arranging the mounting rod 5, the belt 7, the first transmission wheel 3 and the second transmission wheel 4, the two groups of mounting frames 2 are allowed to rotate synchronously, thereby respectively driving the two groups of fixing rods 8 and the telescopic rods 11 on the fixing rods 8 and the metal pipes to rotate synchronously. When the two groups of metal pipes rotate synchronously, the welds rotate synchronously therewith, which facilitates the staff to perform all-round and uniform welding on the two groups of metal pipes without moving the position of the welding gun, thereby speeding up the work efficiency.

[0024] The utility model provides an alignment and positioning device for metal welding, and the specific working principle is as follows: the telescopic rod 11 is driven to slide by the cylinder 13, so that the first connecting rod 15 and the second connecting rod 16 respectively drive the four groups of clamps 14 to move inward synchronously, and the metal pipes between the four groups of clamps 14 are fixed at a position with the axis of the fixed rod 8 as the center line, and then the pneumatic motor 10 drives the threaded rod 9 to rotate, and pushes the fixed rod 8 to drive the telescopic rod 11 and the metal pipe to slide inward. Since the two groups of fixed rods 8 and the mounting frame 2 are at the same axis position, the welding ends of the two groups of metal pipes are accurately aligned, which is convenient for welding work, and the first clamping block 17 on the clamping plate 14 is The first clamping block 17 and the second clamping block 18 can rotate. When the clamping plate 14 interacts with the metal tube, the first clamping block 17 and the second clamping block 18 rotate under pressure and fit with the outer wall of the metal tube, thereby ensuring that the clamping plate 14 firmly fixes the metal tube. By arranging the mounting rod 5, the belt 7, the first transmission wheel 3 and the second transmission wheel 4, the two groups of mounting frames 2 rotate synchronously, thereby driving the two groups of fixing rods 8 and the telescopic rod 11 on the fixing rod 8 and the metal tube to rotate synchronously respectively. When the two groups of metal tubes rotate synchronously, the welds rotate synchronously therewith, which is convenient for the staff to perform all-round and uniform welding on the two groups of metal tubes without moving the position of the welding gun, thereby speeding up the work efficiency.

[0025] 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. An alignment and positioning device for metal welding, comprising a base (1), characterized in that: A mounting frame (2) is provided above the base (1), and the mounting frame (2) is provided in two groups. The two groups of mounting frames (2) are symmetrically distributed. A fixing rod (8) is provided on the mounting frame (2), and a telescopic rod (11) is provided inside the fixing rod (8). Limit blocks (12) are provided on both sides of the telescopic rod (11). The telescopic rod (11) is slidably connected to the fixing rod (8) via the limit blocks (12). A cylinder (13) is provided inside the fixing rod (8), and the telescopic rod (11) is connected to the output end of the piston rod of the cylinder (13). Four groups of symmetrically distributed clamping plates (14) are provided on the telescopic rod (11), and a first connecting rod (15) and a second connecting rod (16) are provided between the clamping plates (14) and the telescopic rod (11).

2. The alignment and positioning device for metal welding according to claim 1, characterized in that: The left end of the first connecting rod (15) is slidably connected to the clamping plate (14), the right end of the first connecting rod (15) is rotationally connected to the fixed rod (8), and the two ends of the second connecting rod (16) are rotationally connected to the clamping plate (14) and the telescopic rod (11) respectively.

3. The alignment and positioning device for metal welding according to claim 1, characterized in that: The clamping plate (14) is provided with two groups of symmetrically distributed first clamping blocks (17), and the two groups of the first clamping blocks (17) are rotatably connected to the clamping plate (14) via a rotating shaft. The first clamping blocks (17) are provided with two groups of symmetrically distributed second clamping blocks (18), and the two groups of the second clamping blocks (18) are rotatably connected to the first clamping blocks (17) via a rotating shaft.

4. The alignment and positioning device for metal welding according to claim 1, characterized in that: The fixing rod (8) is slidably connected to the mounting frame (2), a threaded rod (9) is provided in the mounting frame (2), a motor (10) is provided in the mounting frame (2), the threaded rod (9) passes through the mounting frame (2) and is rotatably connected to the mounting frame (2), the threaded rod (9) is connected to the output end of the motor (10), and the threaded rod (9) passes through the fixing rod (8) and is threadedly connected to the fixing rod (8).

5. The alignment and positioning device for metal welding according to claim 1, characterized in that: The two groups of mounting frames (2) are rotatably connected to the base (1) via bearings; the two groups of mounting frames (2) are sleeved with a first transmission wheel (3); two groups of second transmission wheels (4) are arranged above the base (1); the two groups of second transmission wheels (4) are distributed correspondingly to the first transmission wheels (3); the base (1) is provided with two groups of symmetrically distributed belts (7); the two groups of second transmission wheels (4) are fixedly connected via a mounting rod (5); and the base (1) is provided with a motor (6).

6. The alignment and positioning device for metal welding according to claim 5, characterized in that: The belt (7) is respectively connected to the first transmission wheel (3) and the second transmission wheel (4) in transmission connection; the two ends of the mounting rod (5) respectively penetrate the base (1) and are rotationally connected to the base (1); the right end of the mounting rod (5) is connected to the output end of the motor (6).