Laser welding machine for upper joint and lower joint of pipe fitting
By designing a multi-directional clamping and positioning structure, the welding quality and efficiency issues of laser welding machines for upper and lower pipe joints when positioning is insufficient are solved, achieving efficient and stable welding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-03
AI Technical Summary
The lack of effective positioning in existing laser welding machines for pipe fittings leads to a decline in welding quality and affects production efficiency.
The multi-directional clamping and positioning structure consists of an electric push rod, a short connecting rod, a central chuck, a telescopic sleeve, a collar, a limiting arc plate, a long connecting rod, a telescopic slide rod, a pressure block, and a pressure roller. Through the cooperation of the electric push rod and the roller, the pipe fitting is stably fixed and its position is prevented from shifting.
It improves welding quality and production efficiency, ensures stable connection of pipe fittings during welding, and enhances equipment adaptability.
Smart Images
Figure CN223960705U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe welding processing technology, specifically a laser welding machine for upper and lower joints of pipe fittings. Background Technology
[0002] When welding pipe fittings, compared with traditional laser welding equipment, the upper and lower joint laser welding machine for pipe fittings refers to a laser device specifically designed for welding pipe fitting joints. It supports welding two joints of the pipe fitting simultaneously during operation, making the entire laser welding operation more efficient.
[0003] In the existing technology, when using a laser welding machine for upper and lower pipe joints to carry out welding work, it mainly relies on two laser welding heads to simultaneously weld the upper and lower joints. However, considering that it is necessary to ensure that the pipe and the other two pipes are kept in close contact during the welding process, if there is a lack of effective positioning, the position of the pipe and the other pipes is very easy to shift, which leads to a decrease in welding quality and a relative impact on production efficiency. Therefore, a laser welding machine for upper and lower pipe joints is proposed to address the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a laser welding machine for upper and lower pipe joints, so as to solve the problem mentioned in the background art that when using a laser welding machine for upper and lower pipe joints to carry out welding work, the welding quality will be reduced due to the lack of effective positioning.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A laser welding machine for pipe fitting joints includes an operating support. Movable turntables are fixedly connected to the left and right sides of the top of the operating support. An operating panel is rotatably connected between the two turntables. An electric push rod is fixedly installed at the upper center of the operating panel. A central chuck is fixedly connected to the movable end of the electric push rod. A short connecting rod is fixedly connected to the bottom end of the central chuck. A telescopic sleeve is fixedly connected to the center of the central chuck. A collar is fitted around the outside of the telescopic sleeve. Limiting arc plates are fixedly connected to both the upper and lower ends of the collar. A long connecting rod is fixedly connected to the side of the limiting arc plate away from the collar. A telescopic sliding rod is fixedly connected to the convex ball end of the long connecting rod and slidably connected to the telescopic sleeve. Pressure blocks are fixedly connected to the bottom ends of both the long and short connecting rods. Pressure rollers are rotatably connected to both sides of the pressure blocks.
[0007] Preferably, the operating support has a U-shaped structure, and the operating panel is located directly above the operating support.
[0008] Preferably, a second groove is provided below the front end face of the operation panel. A transmission slider is slidably connected to both sides of the interior of the second groove. A trapezoidal lead screw with positive and negative threads is threaded to the middle of the transmission slider. The trapezoidal lead screw with positive and negative threads is disposed inside the second groove and rotatably connected to the operation panel. A laser welding device is fixedly installed on the front end face of the transmission slider. The laser welding head of the laser welding device is tilted upward.
[0009] Preferably, the front end face of the operation panel is provided with first grooves on the left and right sides respectively. The upper and lower ends of the first grooves are rotatably connected to rollers. There are two sets of rollers, each set consisting of two rollers. The two sets of rollers are arranged in an inclined state. Each set of two rollers is connected by a toothed belt, which is located inside the first groove.
[0010] Preferably, the pressure rollers are arranged in groups of two, for a total of three groups. The length of the long connecting rod is greater than the length of the short connecting rod. The two long connecting rods are symmetrically arranged along the vertical central axis of the short connecting rod. The long connecting rods and the short connecting rods are respectively located in front of the operation panel. The inner surface of the limiting arc plate and the outer surface of the telescopic sleeve are fitted together. The telescopic sleeve and the collar are detachably connected by bolts.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] In this invention, the electric push rod, short connecting rod, central chuck, telescopic sleeve, collar, limiting arc plate, long connecting rod, telescopic slide rod, pressure block, and pressure roller are designed to facilitate the efficient welding of the upper and lower joints of the pipe fittings by the laser welding machine before the two laser welding devices perform welding operations. With the connection of the control panel and the auxiliary support of two sets of rollers, the multi-directional clamping and positioning structure, composed of the electric push rod, short connecting rod, central chuck, telescopic sleeve, collar, limiting arc plate, long connecting rod, telescopic slide rod, pressure block, and pressure roller, simultaneously fixes the left and right pipe fittings and the middle pipe fitting, preventing positional displacement between the pipe fittings and other pipe fittings. This effective positioning improves the welding quality and production efficiency of the equipment. Furthermore, the positioning structure supports adjustable telescopic settings, enhancing the adaptability of the equipment in actual use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram showing the overall and partial enlarged structure of this utility model;
[0015] Figure 3 This utility model Figure 1 A schematic diagram of the structure at point A;
[0016] Figure 4 This is a schematic diagram of the roller mounting structure of this utility model.
[0017] In the diagram: 1. Operating support; 2. Movable turntable; 3. Operating panel; 4. Electric push rod; 5. Short connecting rod; 6. Center chuck; 7. Telescopic sleeve; 8. Collar; 9. Limiting arc plate; 10. Long connecting rod; 11. Telescopic slide rod; 12. Pressure block; 13. Pressure roller; 14. First groove; 15. Idler roller; 16. Toothed belt; 17. Second groove; 18. Transmission slider; 19. Positive and negative toothed trapezoidal lead screw; 20. Laser welding device. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0019] Please see Figure 1-4 This utility model provides a technical solution:
[0020] A laser welding machine for upper and lower joints of pipe fittings includes an operating support 1. Movable turntables 2 are fixedly connected to the top left and right sides of the operating support 1. An operating panel 3 is rotatably connected between the two turntables 2. An electric push rod 4 is fixedly installed at the upper center of the operating panel 3. A central chuck 6 is fixedly connected to the movable end of the electric push rod 4. A short connecting rod 5 is fixedly connected to the bottom end of the central chuck 6. A telescopic sleeve 7 is fixedly connected to the middle of the central chuck 6. A collar 8 is fitted around the outside of the telescopic sleeve 7. Limiting arc plates 9 are fixedly connected to both the upper and lower ends of the collar 8. A long connecting rod 10 is fixedly connected to the side of the limiting arc plate 9 away from the collar 8. A telescopic sliding rod 11, which is slidably connected to the convex ball end of the long connecting rod 10, is fixedly connected to the telescopic sleeve 7. Pressure blocks 12 are fixedly connected to the bottom ends of both the long connecting rod 10 and the short connecting rod 5. Pressure rollers 13 are rotatably connected to both sides of the pressure blocks 12.
[0021] like Figure 1 and Figure 4As shown, the operating support 1 has a U-shaped structure. The operating panel 3 is located directly above the operating support 1. When the equipment performs welding operations via the laser welding components on the operating panel 3, the operating support 1 mainly serves to support the placement of the equipment. A second groove 17 is provided below the front end of the operating panel 3. A transmission slider 18 is slidably connected to both sides of the interior of the second groove 17. A positive and negative threaded trapezoidal lead screw 19 is threadedly connected to the center of the transmission slider 18. The positive and negative threaded trapezoidal lead screw 19 is located inside the second groove 17 and rotatably connected to the operating panel 3. A laser welding device 20 is fixedly installed on the front end of the transmission slider 18. The laser welding head is tilted upwards. With the rotational cooperation of the transmission slider 18 and the positive and negative toothed trapezoidal lead screw 19, the entire equipment can conveniently adjust the distance between the left and right laser welding devices 20. The front side of the operation panel 3 is provided with first grooves 14 on the left and right sides respectively. The upper and lower ends of the first grooves 14 are rotatably connected to rollers 15. There are two sets of rollers 15, with each set consisting of two rollers. The two sets of rollers 15 are set in an inclined state. Each pair of rollers 15 is connected by a toothed belt 16, which is located inside the first groove 14. When the equipment is working, the two sets of rollers 15 are set in an inclined state, which is conducive to the stable placement of pipes.
[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, there are three sets of pressure rollers 13, with each set consisting of two rollers. The length of the long connecting rod 10 is greater than the length of the short connecting rod 5. The two long connecting rods 10 are symmetrically arranged along the vertical central axis of the short connecting rod 5. The long connecting rods 10 and the short connecting rod 5 are respectively located in front of the operating panel 3. The inner surface of the limiting arc plate 9 and the outer surface of the telescopic sleeve 7 are fitted together. The telescopic sleeve 7 and the collar 8 are detachably connected by bolts. When the telescopic slide rod 11 is pulled out, the upper and lower limiting arc plates 9 can play a guiding and limiting role.
[0023] Workflow: The welding machine in this invention requires external power for startup and operation. The drive source for the two sets of rollers 15 is primarily a drive motor installed deep within the first groove 14. When using this laser welding machine to weld the upper and lower joints of pipe fittings, firstly... Figure 1As shown, place the intermediate pipe on the two sets of rollers 15, and then align it with the welding edge of the intermediate pipe. Place the left and right pipes on either the left or right set of rollers 15. Next, adjust the limiting device according to the actual welding position. Specifically, to ensure the welding point position of the left and right pipes and the intermediate pipe, under the connection and limitation of the collar 8 and the limiting arc plate 9, firmly grasp the long connecting rod 10 and pull the telescopic slide rod 11 out from inside the telescopic sleeve 7. Once stretched to the desired position, align the long connecting rod 10 with the welding point position, and tighten the bolt to limit the collar 8, preventing the long connecting rod 10 from sliding or shifting. At this point, the stretching adjustment of the long connecting rod 10 is complete. Then, activate the electric push rod 4 to extend and retract backward. The central chuck 6 will move through the short connecting rod 5, the telescopic sleeve 7, the telescopic slide rod 11, and the long connecting rod 10, carrying the pressure block... 12 and pressure roller 13 move backward, so that the three sets of pressure rollers 13 can simultaneously press the left and right pipes and the middle pipe, ensuring that the three maintain stable connection during the efficient laser welding process. Then, under the connection limitation of the second groove 17, the positive and negative tooth trapezoidal screw 19 is rotated and adjusted by the anti-slip rotating cylinder provided in the center. The two left and right transmission sliders 18 will carry the laser welding device 20 to achieve reverse or forward stretching. After stretching to the right position, the drive motor installed deep inside the first groove 14 is started. Under the limitation of inclined support, the two sets of rollers 15 will carry the middle pipe and the left and right pipes to rotate at low speed, so that the middle pipe and the left and right pipes can achieve low speed rotation, thereby facilitating the simultaneous welding of the upper and lower joints of the pipes by the two laser welding devices 20 on the left and right sides.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A laser welding machine for upper and lower joints of pipe fittings, comprising an operating support (1), characterized in that: The top left and right sides of the operating support (1) are fixedly connected to movable turntables (2), and an operating panel (3) is rotatably connected between the two movable turntables (2). An electric push rod (4) is fixedly installed at the upper middle position of the operating panel (3). A central chuck (6) is fixedly connected to the movable end of the electric push rod (4). A short connecting rod (5) is fixedly connected to the bottom end of the central chuck (6). A telescopic sleeve (7) is fixedly connected to the middle of the central chuck (6). The outer part is fitted with a collar (8), and the upper and lower ends of the collar (8) are fixedly connected to a limiting arc plate (9). The side of the limiting arc plate (9) away from the collar (8) is fixedly connected to a long connecting rod (10). The convex ball end of the long connecting rod (10) is fixedly connected to a telescopic slide rod (11) that is slidably connected to the telescopic sleeve (7). The bottom ends of the long connecting rod (10) and the short connecting rod (5) are fixedly connected to a pressure block (12). The two sides of the pressure block (12) are rotatably connected to pressure rollers (13).
2. The laser welding machine for upper and lower joints of pipe fittings according to claim 1, characterized in that: The operating support (1) has a "U" shaped structure, and the operating panel (3) is located directly above the operating support (1).
3. The laser welding machine for upper and lower joints of pipe fittings according to claim 1, characterized in that: A second groove (17) is provided below the front end face of the operation panel (3). A transmission slider (18) is slidably connected to both sides of the interior of the second groove (17). A positive and negative tooth trapezoidal screw (19) is threadedly connected to the middle of the transmission slider (18). The positive and negative tooth trapezoidal screw (19) is set inside the second groove (17) and rotatably connected to the operation panel (3). A laser welding device (20) is fixedly installed on the front end face of the transmission slider (18). The laser welding head of the laser welding device (20) is tilted upward.
4. The laser welding machine for upper and lower joints of pipe fittings according to claim 1, characterized in that: The front end face of the operation panel (3) is provided with first grooves (14) on the left and right sides respectively. The upper and lower ends of the first grooves (14) are rotatably connected to rollers (15). There are two sets of rollers (15) in pairs. The two sets of rollers (15) are set in an inclined state. Each pair of rollers (15) are connected by a toothed belt (16). The toothed belt (16) is set inside the first groove (14).
5. A laser welding machine for upper and lower joints of pipe fittings according to claim 1, characterized in that: The pressure rollers (13) are arranged in groups of two, with a total of three groups. The length of the long connecting rod (10) is greater than the length of the short connecting rod (5). The two long connecting rods (10) are symmetrically arranged along the vertical central axis of the short connecting rod (5). The long connecting rods (10) and the short connecting rods (5) are respectively located in front of the operating panel (3). The inner surface of the limiting arc plate (9) and the outer surface of the telescopic sleeve (7) are fitted together. The telescopic sleeve (7) and the collar (8) are detachably connected by bolts.