Fiber laser

Abstract

The utility model provides an optical fiber laser, which comprises an optical fiber head, an optical fiber joint and a laser head, the optical fiber head is connected with the laser head through the optical fiber joint, one end of the optical fiber head is provided with a butt joint boss, one end of the butt joint boss is provided with an insertion hole close to the edge, two sides in the insertion hole are provided with guide channels, and the guide channels are communicated with the butt joint boss. A taper pin is elastically and slidably connected in the guide channel, one end of the optical fiber connector is fixedly provided with a butt joint sleeve, the outer circumferential wall of the butt joint sleeve is fixedly connected with an insertion rod matched with the insertion hole in an inserted mode, and taper holes which are close to the free end and matched with the taper pin in an inserted mode are formed in the two sides of the insertion rod. According to the utility model, through the arrangement of the guide channel, the taper pin, the insertion rod, the clamping groove and the magnetic attraction piece, the insertion connection of the optical fiber head and the optical fiber connector is more reliable and firmer, the problem of looseness is avoided, and compared with the prior art, the optical fiber head and the optical fiber connector are simpler in structure and more convenient to use by adopting a magnetic attraction locking connection structure. And the butt joint is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber lasers, in particular to an optical fiber laser. Background Art

[0002] Fiber laser cutting technology has the advantages of high cutting precision, smooth cutting surface, high cutting efficiency and low production cost. Therefore, fiber laser cutting technology has been widely used. There are generally three types of optical fiber head light output ends of high-power fiber lasers above 6KW, namely QBH, QD and Q+. In fiber laser applications, the laser head of the fiber laser and the optical fiber head need to be connected through a fiber optic connector.

[0003] Patent publication number CN110989100B discloses a fiber laser comprising a fiber head, a laser head, and a fiber connector connecting the two. The fiber connector comprises a fixed base, a dust cover, a water-cooling ring, a connecting plate, a locking sleeve, a spring, and a guide pin. The light-emitting end of the fiber head is embedded in one end of the fixed base, and a guide pin is provided at the other end of the fixed base. The guide pin is mounted on a spring. The locking sleeve is mounted on one end of the fixed base and the spring is embedded in the locking sleeve. A positioning steel ball is provided within the outer wall of the fixed base, and the positioning steel ball contacts the tapered surface of the locking sleeve and the inclined surface of the fiber head, thereby securing the fiber head and the fixed base. A water-cooling ring is provided at the other end of the fixed base, and the water-cooling ring has a water tank. The ends of the dust cover are respectively tightly fitted around the outer walls of the fiber head and the water-cooling ring. The connecting plate connects the water-cooling ring to the laser head. The present invention achieves the following beneficial effects: the fiber head and the fiber connector are securely connected, reducing fiber loss; the fiber connector has excellent heat dissipation and cooling effects; pollution sources can be isolated from entering the laser head; and cutting efficiency is high.

[0004] However, the above-mentioned existing technology still has the following shortcomings when used: 1. The clamping structure of the optical fiber connector and the optical fiber head is relatively complicated. The complicated structure will take up a lot of space, thereby affecting the area of ​​the cooling structure, and the clamping operation is inconvenient; 2. When the optical fiber connector and the optical fiber head are disassembled, the guide pin needs to be screwed, and it is difficult to judge whether the positioning steel column is off the inclined surface during screwing, which has the defect of inconvenient disassembly operation and is inconvenient to replace the optical fiber connector.

[0005] To this end, the utility model provides a fiber laser. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a fiber laser to solve the problems raised in the above background technology. The assembly structure of the fiber optic connector and the fiber optic head of the present invention has the advantages of simple structure and small space occupation, and has the advantage of more convenient assembly and disassembly operations.

[0007] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a fiber laser, comprising an optical fiber head, an optical fiber connector and a laser head, the optical fiber head is connected to the laser head through the optical fiber connector, a docking boss is provided at one end of the optical fiber head, a socket close to the edge is provided at one end of the docking boss, guide channels are provided on both sides of the socket, a tapered pin is elastically slidably connected in the guide channel, a docking sleeve is fixedly provided at one end of the optical fiber connector, an outer peripheral wall of the docking sleeve is fixedly connected to a plug rod that is plugged into the socket, tapered holes close to the free end and plugged into the tapered pin are provided on both sides of the plug rod, a magnetic attraction part is provided in the plug rod that is close to the tapered hole and magnetically matched with the tapered pin.

[0008] Furthermore, the number of the jacks is at least three and they are evenly distributed around the docking boss. One end of the guide channel is connected to the outside of the docking boss, and a plug is screwed onto the mouth of the guide channel.

[0009] Furthermore, one end of the sealing head is fixedly connected to one end of a cone pin through a tension spring, and the magnetic attraction member is a magnet.

[0010] Furthermore, a hole is formed at one end of the insertion rod, an insertion shaft is inserted into the hole, and a magnetic attraction part is embedded in the insertion shaft.

[0011] Furthermore, one end of the insertion shaft is fixedly connected to a connector, and the mouth of the channel is provided with a slot for damping insertion with the connector.

[0012] Furthermore, an annular groove is provided on the front end surface of the docking boss, and an insert ring adapted to the annular groove is fixedly connected to one end of the docking sleeve.

[0013] Furthermore, a sealing rubber ring is provided in the annular groove.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides a guide channel, a cone pin, a plug rod, a slot and a magnetic part, so that the insertion of the optical fiber head and the optical fiber connector is more reliable and fastened without loosening. In addition, the magnetic locking connection structure makes the structure of the optical fiber head and the optical fiber connector simpler and more convenient to connect than the existing technology.

[0016] 2. The utility model provides an insertion shaft that is detachably connected to the insertion rod and a tension spring connected to one end of the tapered pin. When the optical fiber connector needs to be disassembled and replaced, the insertion rod and the tapered pin can be unlocked by pulling out the insertion shaft, so that the optical fiber connector can be quickly separated from the optical fiber head, which has the advantage of more convenient disassembly of the optical fiber head and the optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the structure of a fiber laser of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the explosion after it unfolds;

[0019] Figure 3 This is a schematic diagram of the cooperation between the plug shaft and the magnetic attraction component of a fiber laser according to the present invention;

[0020] In the figure: 1. Fiber optic head; 11. Docking boss; 111. Socket; 1111. Guide channel; 112. Annular groove; 2. Fiber optic connector; 21. Docking sleeve; 211. Insert ring; 3. Laser head; 4. Taper pin; 5. Insert rod; 51. Channel; 511. Slot; 52. Taper hole; 6. Insert shaft; 61. Connector; 7. Magnetic part; 8. Sealing head; 9. Tension spring; 101. Sealing rubber ring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 3 The present invention provides a technical solution: a fiber laser, comprising a fiber head 1, a fiber connector 2, and a laser head 3, wherein the fiber head 1 is connected to the laser head 3 via the fiber connector 2, wherein the connection method of the fiber connector 2 and the laser head 3 adopts the structure in the patent document mentioned in the background technology. In the prior art, the fiber head 1 and the fiber connector 2 adopt a plug-in structure. However, this structure has the disadvantage of poor convenience in plug-in and detachment operations, and also has the problem of occupying a large space, resulting in a small water cooling structure area in the fiber connector 2. In response to this defect, the present application improves the plug-in structure in the prior art.

[0023] Specifically, a docking boss 11 is provided at one end of the optical fiber head 1, and a socket 111 close to the edge is provided at one end of the docking boss 11, and guide channels 1111 are provided on both sides of the socket 111, and a tapered pin 4 is elastically and slidably connected in the guide channel 1111. One guide channel 1111 corresponds to two tapered pins 4, and the small ends of the two tapered pins 4 are opposite to each other. A docking sleeve 21 is fixedly provided at one end of the optical fiber connector 2, and an insertion rod 5 that is plugged into the socket 111 is fixedly connected to the outer peripheral wall of the docking sleeve 21. Tapered holes 52 close to the free end and plugged into the tapered pin 4 are provided on both sides of the insertion rod 5. When the docking sleeve 21 is connected to the docking boss 11 through the plug-in fit of the insertion rod 5 and the socket 111, the tapered hole 52 and the tapered pin 4 are opposite to each other. When the control tapered pin 4 is inserted into the tapered hole 52, the insertion rod 5 and the socket 111 are in a fastened and reliably connected state.

[0024] Among them, a magnetic attraction component 7 is provided in the insertion rod 5, which is close to the tapered hole 52 and magnetically cooperates with the tapered pin 4. The function of the magnetic attraction component 7 is to control the tapered pin 4 to be inserted into the tapered hole 52.

[0025] Furthermore, the number of the sockets 111 is at least three and they are evenly distributed circumferentially relative to the docking boss 11. One end of the guide channel 1111 is connected to the outside of the docking boss 11. The mouth of the guide channel 1111 is screwed with a plugging head 8. After the plugging head 8 is removed, the cone pin 4 can be easily removed.

[0026] Among them, one end of the sealing head 8 is fixedly connected through a tension spring 9 and one end of the cone pin 4, that is, the two ends of the tension spring 9 are fixedly connected to the opposite ends of the sealing head 8 and the cone pin 4 respectively. The magnetic attraction part 7 is a magnet. The two cone pins 4 will move in opposite directions after being magnetically attracted by the magnet, and then be inserted into the corresponding cone hole 52, so as to realize the limit locking of the cone pin 4 on the insertion rod 5.

[0027] In this embodiment, a channel 51 is opened at one end of the insertion rod 5, and an insertion shaft 6 is inserted into the channel 51. A magnetic attraction part 7 is embedded in the insertion shaft 6. When the insertion shaft 6 is pulled out, the magnetic attraction part 7 moves away from the cone pin 4. At this time, under the action of the tension spring 9, the two cone pins 4 will move in the opposite direction and leave the cone hole 52, thereby releasing the lock on the insertion rod 5, thereby facilitating the separation of the insertion rod 5 and the insertion hole 111.

[0028] Furthermore, one end of the plug shaft 6 is fixedly connected to a connector 61, and the mouth of the channel 51 is provided with a slot 511 that is damped and plugged into the connector 61. The damping here refers to a rubber ring that is sleeved on the outside of the connector 61, and the rubber ring can increase the connection resistance between the connector 61 and the slot 511.

[0029] In this embodiment, an annular groove 112 is provided on the front end surface of the docking boss 11, and one end of the docking sleeve 21 is fixedly connected to an insert ring 211 that is adapted to the annular groove 112. The arrangement of the docking boss 11 and the docking sleeve 21 enables the optical fiber head 1 and the optical fiber connector 2 to be aligned and positioned.

[0030] Furthermore, a sealing rubber ring 101 is provided in the annular groove 112 . The function of the sealing rubber ring 101 is to seal the joint between the optical fiber head 1 and the optical fiber connector 2 to prevent dust from entering the interior of the optical fiber head 1 and the optical fiber connector 2 .

[0031] Working principle: When assembling this laser, insert the insertion shaft 6 into the channel 51 on the insertion rod 5, and then insert the insertion rod 5 into the socket 111. When the tapered hole 52 is close to the guide channel 1111 and aligned, the magnetic element 7 generates a magnetic attraction on the two opposite tapered pins 4. The two tapered pins 4 will move toward each other and insert into their respective opposite tapered holes 52. The tension spring 9 will be stretched, and the insertion rod 5 will be locked in the socket 111, completing the fastening and reliable connection between the optical fiber head 1 and the optical fiber connector 2. When it is necessary to separate the optical fiber head 1 and the optical fiber connector 2, manually pull out the connector 61. The magnetic element 7 will move away from the tapered pin 4 and the magnetic attraction between the two will disappear. The tension spring 9 will contract and drive the tapered pin 4 to leave the tapered hole 52, so that the insertion rod 5 can be easily pulled out of the socket 111.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fiber laser, comprising a fiber head (1), a fiber connector (2) and a laser head (3), wherein the fiber head (1) is connected to the laser head (3) via the fiber connector (2), and is characterized in that: One end of the optical fiber head (1) is provided with a docking boss (11), one end of the docking boss (11) is provided with a socket (111) close to the edge, both sides of the socket (111) are provided with guide channels (1111), and a cone pin (4) is elastically slidably connected in the guide channel (1111). One end of the optical fiber connector (2) is fixedly provided with a docking sleeve (21), and the outer peripheral wall of the docking sleeve (21) is fixedly connected with an insertion rod (5) that is plugged into and matched with the socket (111). Both sides of the insertion rod (5) are provided with cone holes (52) close to the free end and plugged into and matched with the cone pin (4), and a magnetic attraction part (7) is provided in the insertion rod (5) that is close to the cone hole (52) and magnetically matched with the cone pin (4).

2. The fiber laser according to claim 1, characterized in that: The number of the jacks (111) is at least three and is evenly distributed circumferentially relative to the docking boss (11); one end of the guide channel (1111) is connected to the outside of the docking boss (11); and a sealing head (8) is screwed onto the mouth of the guide channel (1111).

3. The fiber laser according to claim 2, characterized in that: One end of the sealing head (8) is fixedly connected to one end of the cone pin (4) via a tension spring (9), and the magnetic attraction member (7) is a magnet.

4. The fiber laser according to claim 3, characterized in that: A hole (51) is provided at one end of the insertion rod (5), an insertion shaft (6) is inserted into the hole (51), and a magnetic attraction component (7) is embedded in the insertion shaft (6).

5. The fiber laser according to claim 4, characterized in that: One end of the insertion shaft (6) is fixedly connected to a connector (61), and the mouth of the channel (51) is provided with a slot (511) for damping insertion with the connector (61).

6. The fiber laser according to claim 1, characterized in that: An annular groove (112) is provided on the front end surface of the docking boss (11), and an inserting ring (211) adapted to the annular groove (112) is fixedly connected to one end of the docking sleeve (21).

7. The fiber laser according to claim 6, characterized in that: A sealing rubber ring (101) is provided in the annular groove (112).

Images