A processing device for laser tail fiber packaging laser welding
By designing a processing device for laser pigtail packaging, the problem of adhesive bonding in the packaging of butterfly laser pigtails was solved, achieving stable clamping and safe welding, improving the reliability and consistency of butterfly lasers, and making it suitable for high reliability and long lifespan scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN SHIJIA PHOTONS TECH
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-02
AI Technical Summary
In the existing technology, the fiber optic packaging of butterfly lasers has problems such as poor resistance to high and low temperature shocks, insufficient mechanical vibration reliability, insufficient airtightness, and poor product consistency, which limits its application in high reliability and long lifespan scenarios.
A processing device for laser pigtail packaging was designed, including a tooling body, a clamping block assembly and a threaded knob. Through the design of the mounting groove and the connecting seat clearance groove, the butterfly laser can be stably clamped. The clamping block assembly can clamp the laser body after it enters the mounting groove, ensuring the stability and safety of the welding.
This method achieves stable clamping of the butterfly laser, improves the reliability and consistency of welding, avoids shell deformation, ensures the safety of the laser, and facilitates subsequent fiber optic welding operations.
Smart Images

Figure CN224309857U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optoelectronic device technology, and in particular to a processing device for laser welding of laser pigtail packaging. Background Technology
[0002] Currently, adhesive bonding is commonly used for fiber optic pigtail packaging of butterfly lasers. However, this process has significant drawbacks: adhesive bonding has poor resistance to high and low temperature shocks, making it prone to cracking and failure under drastic temperature changes; it lacks mechanical vibration reliability, easily leading to loosening or even breakage of connections during transportation or use; it has insufficient airtightness, allowing moisture or impurities to easily penetrate and affect the performance of internal optical components; and the packaging process is greatly affected by the curing characteristics of the adhesive, the amount applied, and the operator's experience, resulting in poor product consistency. These problems severely restrict the application of butterfly lasers in communication equipment, industrial processing, and other applications requiring high reliability and long lifespan.
[0003] To overcome the inherent defects of adhesive bonding, laser welding technology has been introduced for the fiber optic packaging of butterfly lasers. Laser welding offers advantages such as high connection strength, small heat-affected zone, good sealing, and good consistency. During laser welding, welding fixtures are required to ensure the stability of the butterfly laser during welding. For example, Chinese Patent Publication No. CN210818037U discloses a butterfly laser welding fixture, including a fixed base, PIN connector I, PIN connector II, a device stop, and a push block assembly. The fixed base is provided with groove I, groove II, and push block groove, with groove I and groove II correspondingly arranged on both sides of the push block groove. A device stop is provided in front of the push block groove and is detachably connected to the fixed base. A butterfly optoelectronic device is provided between the push block groove and the device stop. The two PINs of the butterfly optoelectronic device are detachably connected to PIN connector I fixed in groove I and PIN connector II fixed in groove II, respectively. PIN connector I and PIN connector II are symmetrically arranged. The push block assembly is movably arranged in the push block groove, and the rear part of the device stop and the front part of the push block assembly are matched with the front and rear parts of the butterfly optoelectronic device base, respectively.
[0004] Although the above-mentioned welding fixture can clamp the butterfly laser, facilitating the laser welding of the butterfly laser, its operation is complicated, and it can only perform coupling welding on the butterfly laser, not on the welding of the laser pigtail. In addition, the above-mentioned fixture can only clamp and fix the connecting seat of the butterfly laser, with few clamping parts, which makes it easy for the clamping to be insecure, affecting the clamping stability. Utility Model Content
[0005] This invention proposes a processing device for laser welding of laser pigtail packaging, which solves the problems in the prior art where tooling fixtures are not suitable for welding butterfly laser pigtails and the clamping is not firm.
[0006] The technical solution of this utility model is implemented as follows:
[0007] A processing apparatus for laser welding of laser pigtail packaging includes a fixture body with a mounting groove on its upper surface and a connector clearance groove on its front surface. The connector clearance groove communicates with the mounting groove. Pin clearance grooves are provided on the left and right side walls of the mounting groove. A clamping block assembly is arranged inside the mounting groove, opposite to the connector clearance groove. When the processing apparatus clamps a butterfly laser, the connector of the butterfly laser enters the connector clearance groove, simultaneously allowing the pins on the butterfly laser to enter the pin clearance groove, enabling the body of the butterfly laser to enter the mounting groove. Then, the clamping block assembly clamps the laser body, ensuring the stability of the clamping of the laser by the processing apparatus.
[0008] The width of the mounting slot is equal to the width of the main body of the butterfly laser. The mounting slot positions the main body of the laser in the left and right directions, ensuring that the butterfly laser is accurately placed in the mounting slot.
[0009] The depth of the mounting groove is less than or equal to the length of the main body of the butterfly laser. This prevents the butterfly laser's pigtail from entering the mounting groove, facilitating subsequent welding of the butterfly laser's pigtail.
[0010] The connector clearance groove is located on the lower side of the mounting groove, and the distance between the bottom wall of the connector clearance groove and the front wall of the mounting groove is greater than or equal to the height of the connector. This allows the connector of the butterfly laser to enter the connector clearance groove.
[0011] The width of the connecting seat clearance groove is greater than the width of the mounting groove. This prevents interference between the connecting seat of the butterfly laser and the side wall of the connecting seat clearance groove.
[0012] The clamping block assembly includes a clamping block and a threaded knob. The clamping block is slidably disposed within a mounting groove, and the threaded knob is threadedly connected to the rear wall of the mounting groove, extending into the mounting groove and connecting to the rear of the clamping block. Rotating the threaded knob causes the clamping block to slide back and forth within the mounting groove, thereby clamping or releasing the butterfly laser.
[0013] The clamping block has vertically arranged clamping bars on its front, which correspond to the side wall of the laser body. The side wall of the butterfly laser has strong compressive strength. When the clamping block clamps the laser body, the clamping bars press against the side wall of the laser body, ensuring that the laser body is clamped while preventing the shell of the laser body from being deformed by pressure, thus ensuring the safety of the butterfly laser.
[0014] The clamping block has a vertically arranged sliding groove at its rear, and a slider is located at the head of the threaded knob, which slides in conjunction with the sliding groove. The slider has a frustum structure; the sliding groove is a T-slot. This facilitates the connection between the threaded knob and the clamping block, allowing the clamping block to move back and forth when the threaded knob is rotated, thereby clamping or releasing the butterfly laser.
[0015] The tooling body is equipped with a fixing plate, which engages with the top surface of the clamping block for limiting movement. The fixing plate limits the clamping block to prevent it from detaching from the mounting groove, thus ensuring the structural stability of the processing device.
[0016] The beneficial effects of this utility model are: 1. When the processing device clamps the butterfly laser, the laser body enters the mounting groove, and the clamping block assembly clamps the laser body, effectively ensuring the clamping stability of the butterfly laser.
[0017] 2. The butterfly laser's pigtail extends upwards into the mounting slot of the processing device, facilitating subsequent welding of the butterfly laser pigtail.
[0018] 3. The clamping blocks in the clamping block assembly are equipped with clamping strips, which correspond to the side wall of the laser body. The side wall of the butterfly laser has strong compressive strength. When the clamping blocks clamp the laser body, the clamping strips press against the side wall of the laser body, ensuring that the laser body is clamped while preventing the shell of the laser body from being deformed by pressure, thus ensuring the safety of the butterfly laser. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of a processing device for laser welding of laser pigtail packaging according to the present invention.
[0021] Figure 2 This is a schematic diagram of an explosion of the processing equipment;
[0022] Figure 3 This is a front view of the processing device;
[0023] Figure 4 This is a top view of the processing equipment;
[0024] Figure 5 This is a schematic diagram of a butterfly laser structure.
[0025] Figure 6 This is a schematic diagram of a butterfly laser installed on a processing device.
[0026] In the diagram: 1. Fixture body, 2. Threaded knob, 3. Clamping block, 4. Fixing plate, 5. Butterfly laser, 11. Locking threaded hole, 12. Connecting threaded hole, 13. Mounting groove, 14. Pin clearance groove, 15. Connecting seat clearance groove, 21. Slider, 22. Threaded part, 31. Slide, 51. Laser body, 52. Connecting seat, 53. Pin. Detailed Implementation
[0027] 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 protection scope of the present utility model.
[0028] Example 1, such as Figures 1-6 As shown, a processing device for laser welding of laser pigtail packaging includes a tooling body 1, an mounting groove 13 on the top of the tooling body 1, a connecting seat clearance groove 15 on the front of the tooling body 1, the connecting seat clearance groove 15 communicating with the mounting groove 13, pin clearance grooves 14 on the left and right side walls of the mounting groove 13, and a clamping block assembly arranged opposite to the connecting seat clearance groove 15 in the mounting groove 13. Specifically, the lower part of the fixture body 1 is a connecting column, which is used to connect the processing device and the laser welding device. The upper part of the fixture body 1 is a cuboid structure, and the mounting groove 13 is set on the top surface of the cuboid structure. When the processing device clamps and fixes the butterfly laser, the pins 53 on the butterfly laser enter the pin clearance groove 14, so that the butterfly laser body 51 can enter the mounting groove 13. Then, the connecting seat 52 of the butterfly laser enters the connecting seat clearance groove 15, so that the end of the laser body 51 can contact the bottom surface of the mounting groove 13, ensuring that the butterfly laser is placed stably in the mounting groove 13. Finally, the clamping block assembly in the mounting groove 13 clamps the laser body 51, ensuring the stability of the processing device clamping the laser.
[0029] Furthermore, the width of the mounting groove 13 is equal to the width of the laser body 51 of the butterfly laser 5. The inner wall of the mounting groove 13 limits the laser body 51 in the left and right directions to ensure that the butterfly laser is accurately positioned within the mounting groove 13.
[0030] Furthermore, the depth of the mounting groove 13 is less than or equal to the length of the laser body 51 of the butterfly laser 5. In this embodiment, the depth of the mounting groove 13 is equal to half the length of the laser body 51. This ensures that the clamping block assembly can stably clamp the laser body 51 while preventing the butterfly laser's pigtail from entering the mounting groove 13, thus facilitating subsequent welding of the butterfly laser's pigtail.
[0031] Furthermore, the connecting seat clearance groove 15 is located below the mounting groove 13, and the distance between the bottom wall of the connecting seat clearance groove 15 and the front wall of the mounting groove 13 is greater than or equal to the height of the connecting seat 52. Specifically, as shown... Figure 4 As shown, the distance between the bottom wall of the connector clearance groove 15 and the front wall of the mounting groove 13 is A, so that the connector 52 of the butterfly laser can enter the connector clearance groove 15.
[0032] Furthermore, the width of the connector recess 15 is greater than the width of the mounting groove 13. This prevents interference between the connector 52 of the butterfly laser and the sidewall of the connector recess 15.
[0033] Example 2, based on Example 1, provides a processing device for laser welding of laser pigtail packaging. The clamping block assembly includes a clamping block 3 and a threaded knob 2. The clamping block 3 is slidably disposed within a mounting groove 13. The threaded knob 2 is threadedly connected to the rear wall of the mounting groove 13, extending into the mounting groove 13 and connecting to the rear of the clamping block 3. A locking threaded hole 11 is provided on the rear wall of the mounting groove 13. The threaded knob 2 is provided with a threaded portion 22, which is connected to the locking threaded hole 11. When the threaded knob 2 rotates, the engagement of the threaded portion 22 with the locking threaded hole 11 allows the threaded knob 2 to move back and forth relative to the rear wall of the mounting groove 13, thereby causing the clamping block 3 to slide back and forth within the mounting groove 13, thus achieving the clamping or loosening of the butterfly laser by the clamping block 3.
[0034] Furthermore, the clamping block 3 has vertically arranged clamping bars on its front, which correspond to the side wall of the laser body 51. Specifically, the side wall of the butterfly laser has strong compressive strength. When the clamping block 3 clamps the laser body 51, the clamping bars press against the side wall of the laser body 51, ensuring that the laser body 51 is clamped while preventing the shell of the laser body 51 from being deformed by pressure, thus ensuring the safety of the butterfly laser.
[0035] Furthermore, a vertically arranged sliding groove 31 is provided at the rear of the clamping block 3, and a slider 21 is provided at the head of the threaded knob 2. The slider 21 slides in conjunction with the sliding groove 31. The slider 21 has a frustum structure; the sliding groove 31 is a T-slot. To facilitate the installation of the clamping block 3 in the mounting slot 13 and the connection between the clamping block 3 and the threaded knob 2, the specific installation process of the clamping block 3 and the threaded knob 2 is as follows: First, connect the threaded part 22 of the threaded knob 2 to the locking threaded hole 11, so that the slider 21 of the head of the threaded knob 2 extends into the mounting slot 13. Then, the clamping block 3 is installed into the mounting slot 13 from above. During the installation of the clamping block 3, the slider 21 enters the T-slot, realizing the connection between the clamping block 3 and the threaded knob 2, which facilitates the threaded knob 2 to drive the clamping block 3 to move back and forth. In addition, the slider 21 is set as a frustum structure, so that when the slider 21 rotates with the threaded knob 2, there will be no interference between the slider 21 and the T-slot, which facilitates the rotation of the threaded knob 2. Finally, when the threaded knob 2 rotates, it can drive the clamping block to move back and forth, thereby realizing the clamping or releasing of the butterfly laser.
[0036] Furthermore, a fixing plate 4 is provided on the main body of the tooling 1, and the fixing plate 4 is matched with the top surface of the clamping block 3. In this embodiment, the top surface of the main body of the tooling 1 is provided with a connecting threaded hole 12, and the fixing plate 4 is provided with a fixing through hole. When the fixing plate 4 is installed, a bolt is used to pass through the fixing through hole and connect with the connecting threaded hole 12 to fix the fixing plate 4 on the main body of the tooling 1. After the fixing plate 4 is installed, the fixing plate 4 limits the clamping block 3 to prevent the clamping block 3 from falling off from the mounting groove 13, thus ensuring the structural stability of the processing device.
[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A processing apparatus for laser welding of laser pigtail packaging, comprising a tooling body (1), characterized in that, The tooling body (1) has an installation groove (13) on its upper part and a connecting seat clearance groove (15) on its front. The connecting seat clearance groove (15) is connected to the installation groove (13). The left and right side walls of the installation groove (13) have pin clearance grooves (14). The installation groove (13) has a clamping block assembly arranged opposite to the connecting seat clearance groove (15).
2. The processing apparatus for laser welding of laser pigtail packaging according to claim 1, characterized in that, The width of the mounting slot (13) is equal to the width of the laser body (51) of the butterfly laser (5).
3. The processing apparatus for laser welding of laser pigtail packaging according to claim 2, characterized in that, The depth of the mounting slot (13) is less than or equal to the length of the laser body (51) of the butterfly laser (5).
4. The processing apparatus for laser welding of laser pigtail packaging according to claim 3, characterized in that, The connecting seat clearance groove (15) is located on the lower side of the mounting groove (13), and the distance between the bottom wall of the connecting seat clearance groove (15) and the front wall of the mounting groove (13) is greater than or equal to the height of the connecting seat (52).
5. The processing apparatus for laser welding of laser pigtail packaging according to claim 4, characterized in that, The width of the connecting seat clearance groove (15) is greater than the width of the mounting groove (13).
6. The processing apparatus for laser welding of laser pigtail packaging according to any one of claims 1 to 5, characterized in that, The clamping block assembly includes a clamping block (3) and a threaded knob (2). The clamping block (3) is slidably disposed in the mounting groove (13). The threaded knob (2) is threadedly connected to the rear wall of the mounting groove (13). The threaded knob (2) extends into the mounting groove (13) and is connected to the rear of the clamping block (3).
7. The processing apparatus for laser welding of laser pigtail packaging according to claim 6, characterized in that, The clamping block (3) has vertically arranged clamping bars in front of it, and the clamping bars correspond to the side wall of the laser body (51).
8. The processing apparatus for laser welding of laser pigtail packaging according to claim 7, characterized in that, The back of the clamp (3) is provided with a vertically arranged slide groove (31), and the head of the threaded knob (2) is provided with a slider (21), which slides in conjunction with the slide groove (31).
9. The processing apparatus for laser welding of laser pigtail packaging according to claim 8, characterized in that, The slider (21) is a frustum structure; the groove (31) is a T-groove.
10. The processing apparatus for laser welding of laser pigtail packaging according to claim 9, characterized in that, The tooling body (1) is provided with a fixing plate (4), and the fixing plate (4) is matched with the top surface of the clamping block (3).