Laser welding workpiece butt joint fixing device

By designing an adaptive adjustment mechanism for the rotary robotic arm and extension rod, the problem of needing to replace existing fixtures was solved, enabling efficient fixing and docking of workpieces of different sizes.

CN224143735UActive Publication Date: 2026-04-21KUNSHAN HUIJIA LASER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN HUIJIA LASER TECH CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing fixtures need to be replaced when laser welding controlled workpieces of different sizes, which makes operation inconvenient.

Method used

A fixing device including a rotary robotic arm, a laser welding head, and a docking mechanism was designed. It achieves adaptive adjustment by using a rod extension mechanism and a locking unit. Through the telescopic cooperation between the inner rod and the main rod and bolt fixing, it can adapt to the docking of workpieces of different sizes.

Benefits of technology

It enables adaptive docking and fixing of workpieces of different sizes, improving operational efficiency and applicability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a laser welding workpiece butt joint fixing device, and belongs to the technical field of laser welding workpiece butt joint. The laser welding device mainly comprises a bottom table, a rotating mechanical arm is arranged on the side portion of the bottom table, a laser welding head and a butt joint mechanism are installed at the end of the rotating mechanical arm, the butt joint mechanism is installed on the bottom table and comprises two sets of vertical frames and a plate frame, the two sets of vertical frames are installed on the two sides of the bottom table, and the plate frame is installed on the two sets of vertical frames through bearings. And the rod extending mechanism is installed on the plate frame, the rod extending mechanism is provided with a main rod installed on the plate frame, inner rods are installed at the two ends of the main rod in a telescopic mode, holding rings are installed at the ends of the inner rods in a hinged mode, and the inner rods are suitable for extending out of or contracting into the main rod so as to adjust the butt joint distance. According to the butt joint fixing device for the laser welding workpieces, the butt joint fixing effect on the workpieces of different sizes is achieved.
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Description

Technical Field

[0001] This application relates to the field of laser welding workpiece docking technology, specifically to a laser welding workpiece docking and fixing device. Background Technology

[0002] Laser welding workpiece docking and fixing device is a special equipment used to precisely fix, align and clamp the workpieces to be welded during laser welding. Its main purpose is to ensure the stability and positional accuracy of the workpiece joint.

[0003] In the existing laser welding process of controlled workpieces, clamps are usually used to dock the controlled workpieces together to ensure the alignment of the joints. However, in order to adapt the controlled workpieces to different applications, the controlled workpieces have different sizes. When docking and fixing controlled workpieces of different sizes, since the existing clamps are all fixed, it is necessary to replace them with clamps that correspond to the size of the controlled workpieces for docking and clamping. However, this docking method is inconvenient. Therefore, it is necessary to provide a laser welding workpiece docking and fixing device to solve the above problems.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0005] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a laser welding workpiece docking and fixing device to achieve the effect of docking and fixing workpieces of different sizes.

[0006] To achieve the above objectives, this application provides the following technical solution: a laser welding workpiece docking and fixing device, comprising a base platform, a rotating robotic arm disposed on the side of the base platform, a laser welding head mounted at the end of the rotating robotic arm, a docking mechanism mounted on the base platform, the docking mechanism comprising two sets of uprights mounted on both sides of the base platform, a plate frame with bearings mounted on the two sets of uprights, at least two sets of slots provided on both sides of the uprights, and a telescopic rod mechanism mounted on the plate frame, the telescopic rod mechanism having a main rod mounted on the plate frame, inner rods telescopically mounted at both ends of the main rod, a retaining ring hinged at the end of the inner rod, the inner rod being adapted to extend or retract within the main rod to adjust the docking distance.

[0007] Preferably, the inner rod has an adjustment groove, and the main rod is fitted with a bolt that matches the adjustment groove, with a nut threaded onto the bolt.

[0008] Preferably, the end of the retaining ring is hinged with a locking rod, and the end of the inner rod is provided with a buckle groove that matches the locking rod.

[0009] Preferably, a spring is fitted onto the locking rod.

[0010] Preferably, the upright frame is provided with at least two sets of limiting holes, and the plate frame is provided with fixing holes that are adapted to the limiting holes.

[0011] The beneficial effects of this application are as follows: The laser welding workpiece docking and fixing device provided by this application controls the size of the docking workpiece through the telescopic cooperation between the inner rod and the main rod, and fixes the inner rod and the main rod through the cooperation of the bolt and the inner rod, and adjusts the distance of the outer workpiece, so as to achieve the purpose of adaptive adjustment and cooperation with workpieces of different sizes, and achieves the effect of docking and fixing workpieces of different sizes.

[0012] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is an overall schematic diagram of a laser welding workpiece docking and fixing device according to this application;

[0015] Figure 2 for Figure 1 A schematic diagram of the alignment mechanism;

[0016] The following are the labeling elements in the figure:

[0017] 1. Rotary robotic arm; 11. Laser welding head; 2. Base platform; 3. Docking mechanism; 31. Stand; 32. Plate frame; 321. Slot; 4. Extension rod mechanism; 41. Main rod; 42. Inner rod; 421. Adjustment groove; 43. Bolt; 44. Locking unit; 441. Buckle groove; 442. Clamping ring; 443. Locking rod. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] like Figures 1-2 As shown, this application provides a laser welding workpiece docking and fixing device, including a base 2 and a docking mechanism 3 installed on the base 2. The docking mechanism 3 is used to dock and clamp the workpiece. A rotating mechanical arm 1 is provided on the side of the base 2. A laser welding head 11 is installed at the end of the rotating mechanical arm 1. Under the drive of the rotating mechanical arm 1, the laser welding head 11 is suitable for performing welding operations on the workpiece on the docking mechanism 3.

[0021] The docking mechanism 3 includes uprights 31 installed on both sides of the base platform 2, and a plate frame 32 with bearings installed between the two sets of uprights 31. At least two sets of limiting holes (not shown in the figure) are provided at the top of the uprights 31. Fixing holes adapted to the limiting holes are provided on the side of the plate frame 32. The fixing holes are adapted to align with the limiting holes, fix the plate frame 32, and control the tilt angle of the plate frame 32.

[0022] At least two sets of slots 321 are provided on both sides of the plate frame 32. The slots 321 are used to clamp the workpiece. An extension rod mechanism 4 is installed on the plate frame 32. The extension rod mechanism 4 includes a main rod 41 set on the plate frame 32 and inner rods 42 telescopically installed on both sides of the main rod 41. The inner rods 42 are provided with adjustment slots 421, and bolts 43 are installed through the main rod 41. The bolts 43 extend out of the adjustment slots 421, and nuts (not shown in the figure) are threaded on the bolts 43. The two sets of inner rods 42 are adapted to extend or retract along the inside of the main rod 41 and are fixed in position with the cooperation of the nuts and bolts 43, so as to adaptively adjust to fit workpieces of different sizes.

[0023] Meanwhile, a locking unit 44 is installed at the ends of the two sets of inner rods 42. The locking unit 44 includes a retaining ring 442 with a bearing installed at the end of the inner rod 42, and a locking rod 443 hinged to the end of the retaining ring 442. A spring is sleeved on the locking rod 443, and a buckle groove 441 adapted to the locking rod 443 is opened on the upper side of the end of the inner rod 42, so that the workpieces on both sides are clamped and positioned under the action of the retaining ring 442.

[0024] When it is necessary to fix the workpiece, first adjust the extension length of the inner rod 42 so that the size of the extension rod mechanism 4 matches the size of the workpiece, and fix the inner rod 42 and the main rod 41 with the cooperation of the bolt 43 and the nut. At the same time, the workpiece is inserted into the slot 321.

[0025] Then place the outer workpiece at the end of the inner rod 42 and rotate the retaining ring 442 so that the retaining ring 442 holds the workpiece at the end of the inner rod 42. At the same time, rotate the locking rod 443 to engage with the buckle groove 441. Through the action of the spring, the outer workpiece is fixedly clamped and the workpiece in the slot 321 is connected and fixed with the outer workpiece.

[0026] In summary, the telescopic cooperation between the inner rod 42 and the main rod 41 controls the size of the workpieces to be connected. With the cooperation of the bolt 43 and the inner rod 42, the inner rod 42 and the main rod 41 are fixed together, and the spacing of the outer workpieces is adjusted. This achieves the purpose of adaptive adjustment and cooperation with workpieces of different sizes, thus achieving the effect of fixing workpieces of different sizes together.

[0027] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations are possible for those skilled in the art. Any improvements and modifications made within the spirit and principles of this application, without departing from its underlying principles, should also be considered within the scope of protection of this application.

Claims

1. A laser welding workpiece docking and fixing device, comprising: A base platform (2) is provided on the side of which a rotating robotic arm (1) is provided, and a laser welding head (11) is installed at the end of the rotating robotic arm (1); A docking mechanism (3), which is mounted on the base (2), is characterized in that: the docking mechanism (3) comprises: Two sets of uprights (31) are installed on both sides of the base (2); A plate frame (32) is mounted on two sets of uprights (31) with bearings. At least two sets of slots (321) are provided on both sides of the uprights (31). Extension rod mechanism (4), which is mounted on the plate frame (32), the extension rod mechanism (4) has a main rod (41) mounted on the plate frame (32), and inner rods (42) are telescopically mounted at both ends of the main rod (41), and a retaining ring (442) is hinged at the end of the inner rod (42); Wherein: the inner rod (42) is adapted to extend or retract within the main rod (41) to adjust the docking distance.

2. The laser welding butt joint fixture of claim 1, wherein: An adjustment groove (421) is provided on the inner rod (42), and a bolt (43) adapted to the adjustment groove (421) is passed through the main rod (41), and a nut is threaded onto the bolt (43).

3. The laser welding butt joint fixture of claim 2, wherein: The end of the retaining ring (442) is hinged to a locking rod (443), and the end of the inner rod (42) is provided with a buckle groove (441) that is adapted to the locking rod (443).

4. The laser welding butt joint fixture of claim 3, wherein: A spring is fitted onto the locking rod (443).

5. The laser welding butt joint fixture of claim 4, wherein: The upright frame (31) is provided with at least two sets of limiting holes, and the plate frame (32) is provided with fixing holes that are adapted to the limiting holes.