A laser nozzle that is easy to replace
By quickly engaging and disengaging the locking pin and the locking cavity, combined with the vertical locking mechanism of the locking plate, the problem of cumbersome replacement process of traditional laser nozzles is solved, realizing the rapid and secure installation and disassembly of laser nozzles and improving operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU WANXING AUTO-EQUIP CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-31
AI Technical Summary
The traditional laser nozzle replacement process is cumbersome, which reduces production efficiency.
By employing a quick engagement and disengagement mechanism between the locking pin and the locking cavity, combined with the vertical locking mechanism of the locking plate, tool-free and rapid replacement of the laser nozzle can be achieved.
It enables rapid and secure installation and removal of laser nozzles, improving operational efficiency.
Smart Images

Figure CN224574878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser nozzle technology, and in particular to a laser nozzle that is easy to replace. Background Technology
[0002] Laser processing technology, due to its advantages such as high precision, high efficiency, and non-contact operation, has been widely used in industrial fields such as cutting, welding, and surface treatment of metal and non-metal materials. In actual industrial production, in order to adapt to different processing materials, thicknesses, and process requirements, it is necessary to frequently change nozzles with different orifice diameters, cone angles, and materials.
[0003] Traditional laser nozzles are typically screwed onto the laser head using a threaded connection or secured with a clamping ring and lock nut. Replacement requires operators to carefully loosen the locking mechanism using specialized tools. This cumbersome process reduces overall production efficiency. Therefore, there is an urgent need for a laser nozzle that is easy to replace. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a laser nozzle that is easy to replace.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A replaceable laser nozzle includes a laser head. A detachable laser nozzle is mounted on the bottom of the laser head via a mounting base. The bottom of the mounting base has a mounting cavity, and the top of the laser nozzle is fitted with mounting components corresponding to the mounting cavity. The mounting cavity has movably arranged locking pins on both sides for fixing the laser nozzle, and the outer side of the mounting base has vertically movably arranged locking plates for locking the locking pins.
[0006] Furthermore, in a preferred configuration, side fixing blocks are fixedly provided on both sides of the mounting component, and side cavities are adapted to be opened on the corresponding side fixing blocks within the mounting cavity.
[0007] Furthermore, in a preferred configuration, the mounting base has outwardly communicating adjustment cavities on both sides of the mounting cavity, the locking pins are adapted to move within the adjustment cavities, and the side fixing blocks have corresponding locking cavities.
[0008] Furthermore, in a preferred configuration, the ends of the locking pins all extend out of the adjustment cavity, and each of the extended ends of the locking pins is provided with a downward-facing pull post.
[0009] In addition, a preferred structure is that guide members are provided on both sides of the locking post, and guide grooves are adapted to the guide members in the adjustment cavity.
[0010] In addition, a preferred structure is that the outer side of the mounting base has a vertical cavity communicating with the adjustment cavity, and a locking plate is vertically guided in each vertical cavity, and a silicone pad is provided on each locking plate.
[0011] The beneficial effects of this utility model are as follows: by quickly engaging and disengaging the locking post and the locking cavity, combined with the vertical locking mechanism of the locking plate, tool-free quick replacement of the laser nozzle can be achieved. This installation method is not only more secure, but also more convenient to disassemble and assemble, thus improving operating efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a replaceable laser nozzle proposed in this utility model; Figure 2 This is a schematic diagram of the mounting base and laser nozzle proposed in this utility model; Figure 3 for Figure 2 A schematic diagram of the internal structure of the mounting base; Figure 4 for Figure 3 A schematic diagram of the structure when the locking pin moves outward; Figure 5 for Figure 3 A schematic diagram of the exploded structure; Figure 6 for Figure 3 A schematic diagram of the structure after the locking pin, locking plate, and laser nozzle are concealed. Figure 7 This is a bottom view of the mounting base proposed in this utility model; Figure 8 This is a schematic diagram of the structure of the card post proposed in this utility model; Figure 9 This is a schematic diagram of the locking plate proposed in this utility model.
[0013] In the diagram: 1 Laser head, 2 Mounting base, 21 Mounting cavity, 211 Side cavity, 22 Adjustment cavity, 221 Guide groove, 23 Vertical cavity, 3 Locking post, 31 Pulling post, 32 Guide component, 4 Locking plate, 41 Silicone pad, 5 Laser nozzle, 51 Mounting component, 52 Side fixing block, 53 Locking cavity. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0015] Reference Figure 1-9A replaceable laser nozzle includes a laser head 1. A detachable laser nozzle 5 is mounted on the bottom of the laser head 1 via a mounting base 2. The bottom of the mounting base 2 has a mounting cavity 21, and mounting parts 51 are fitted to the top of the laser nozzle 5 corresponding to the mounting cavity 21. Locking posts 3 for fixing the laser nozzle 5 are movably arranged on both sides of the mounting cavity 21, and locking plates 4 for locking the locking posts 3 are vertically movably arranged on the outer side of the mounting base 2.
[0016] The mounting component 51 has side fixing blocks 52 fixedly installed on both sides, and the mounting cavity 21 has a corresponding side cavity 211 adapted to each side fixing block 52. The adapted arrangement between the side fixing blocks 52 and the side cavities 211 allows for guidance during the assembly of the mounting component 51.
[0017] The mounting base 2 has an adjustment cavity 22 that is open outward on both sides of the mounting cavity 21. The locking pins 3 are adapted to move within the adjustment cavity 22, and the side fixing block 52 has a locking cavity 53 corresponding to the locking pins 3.
[0018] The ends of the locking pins 3 all extend out of the adjustment cavity 22, and each of the extended ends of the locking pins 3 is provided with a pull post 31 pointing downwards. The pull post 31 makes it easy for the user to pull the locking pins 3 outwards.
[0019] The locking post 3 has guide members 32 on both sides, and a guide groove 221 is provided in the adjustment cavity 22 to fit the guide members 32. The fit between the guide members 32 and the guide groove 221 can improve the stability of the locking post 3 during movement and prevent the locking post 3 from falling out of the adjustment cavity 22.
[0020] The mounting base 2 has a vertical cavity 23 on its outer side that communicates with the adjustment cavity 22. Each vertical cavity 23 has a locking plate 4 vertically guided and a silicone pad 41 on each locking plate 4. The silicone pad 41 allows the user to easily adjust the position of the locking plate 4.
[0021] In this embodiment, the laser head 1 uses a series of precision lenses to conduct and focus the laser beam generated by the laser, ultimately forming a high-energy-density focal point. The laser nozzle 5 is installed at the end of the laser head 1. Its core function is to cooperate with the laser head to form an annular gas flow channel, coaxially, rapidly, and precisely spraying auxiliary gas onto the laser-affected area of the workpiece surface. This is used to blow away molten material, protect the optical lens from contamination, and optimize processing quality by controlling chemical reactions. It is worth noting that the specific working structure and operation mode of the laser head 1 and laser nozzle 5 are existing technologies and are not related to the ease of installation technical issues addressed in this application; therefore, they will not be elaborated upon further in this application.
[0022] Furthermore, when installing the laser nozzle 5, simply insert the mounting piece 51 at the top of the laser nozzle 5 into the mounting cavity 21, ensuring that the side fixing blocks 52 are all properly inserted into the side cavities 211. At this time, the locking cavities 53 on the side fixing blocks 52 are all properly aligned with the locking posts 3 in the adjustment cavity 22.
[0023] Next, simply push the two locking posts 3 inward to achieve a proper fit between the locking posts 3 and the locking cavity 53. Finally, simply press the locking plate 4 downward to lock the locking posts 3 in place, preventing them from moving and thus improving installation stability. This completes the installation of the laser nozzle 5.
[0024] It is worth noting that anti-slip pads are provided on the contact surfaces between the vertical cavity 23 and the locking plate 4 to prevent the locking plate 4 from moving on its own within the vertical cavity 23. Furthermore, due to the relatively high height of the vertical cavity 23, most of the area of the locking plate 4 is locked to the outside of the locking post 3. This further improves the locking effect of the locking plate 4 on the locking post 3, ensuring sufficient locking performance even under extreme vibration conditions.
[0025] Furthermore, when the user needs to disassemble the laser nozzle 5, simply lift the locking plates 4 on both sides upwards, and then pull the locking pin 3 outwards using the pull post 31. This releases the mutual locking between the locking pin 3 and the locking cavity 53, thereby enabling the disassembly of the laser nozzle 5.
[0026] In this invention, the quick engagement and disengagement of the locking post 3 and the locking cavity 53, combined with the vertical locking mechanism of the locking plate 4, enables tool-free quick replacement of the laser nozzle 5. This installation method is not only more secure, but also more convenient to install and disassemble, thus improving operational efficiency.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A replaceable laser nozzle, comprising a laser head (1), wherein a detachable laser nozzle (5) is mounted on the bottom of the laser head (1) via a mounting base (2), characterized in that, The bottom of the mounting base (2) is provided with a mounting cavity (21), and the top of the laser nozzle (5) is provided with mounting parts (51) corresponding to the mounting cavity (21). Both sides of the mounting cavity (21) are movably provided with locking pins (3) for fixing the laser nozzle (5), and both sides of the mounting base (2) are vertically movably provided with locking plates (4) for locking the locking pins (3).
2. The easily replaceable laser nozzle according to claim 1, characterized in that, Both sides of the mounting component (51) are fixedly provided with side fixing blocks (52), and the mounting cavity (211) is adapted to open side cavities (211) corresponding to the side fixing blocks (52).
3. The easily replaceable laser nozzle according to claim 1, characterized in that, The mounting base (2) has an adjustment cavity (22) that is connected to the outside on both sides of the mounting cavity (21). The locking pins (3) are adapted to move in the adjustment cavity (22), and the side fixing block (52) is adapted to have a locking cavity (53) corresponding to the locking pins (3).
4. The easily replaceable laser nozzle according to claim 3, characterized in that, The ends of the locking pins (3) all extend out of the adjustment cavity (22), and the ends of the locking pins (3) that extend out are all provided with pull pins (31) facing downward.
5. The easily replaceable laser nozzle according to claim 3, characterized in that, Guide members (32) are provided on both sides of the locking post (3), and guide grooves (221) are adapted to be opened in the adjustment cavity (22) corresponding to the guide members (32).
6. A replaceable laser nozzle according to claim 3, characterized in that, The mounting base (2) has a vertical cavity (23) on its outer side that communicates with the adjustment cavity (22). Each vertical cavity (23) is provided with a locking plate (4) in a vertical direction, and each locking plate (4) is provided with a silicone pad (41).