Automatic high-precision slow axis collimation device and use method

Abstract

The invention relates to an automatic high-precision slow axis collimation device and a use method, and belongs to the technical field of optical fiber coupling packaging. The device comprises a supporting table, a dispensing mechanism, an electrifying mechanism, a lens positioning mechanism, a product positioning disc, a working platform and a six-axis mechanical arm, the working platform is arranged on the supporting table, a support is arranged on one side of the working platform, and the dispensing mechanism and the electrifying mechanism are arranged on the support through an X-axis linear guide rail; a lens positioning mechanism and a product positioning disc are arranged on the supporting table on one side of the support, a light spot receiving CCD and a six-axis mechanical arm are arranged on the opposite side of the working platform, and the six-axis mechanical arm is provided with a lens carrying assembly and a shell carrying assembly through a mounting table. According to the invention, the position of the slow-axis collimating lens can be determined more accurately, and the problem that the module coupling efficiency is reduced due to backflow, adjustment precision errors and the like of the position of a module chip is avoided.

Description

Technical Field

[0001] The invention relates to an automated high-precision slow-axis alignment device and a use method thereof, and belongs to the technical field of optical fiber coupling packaging. Background Art

[0002] The fast and slow axis alignment of the fiber coupling module is an important part of laser applications, and its main purpose is to optimize the quality of the laser beam and the processing effect. The fast and slow axis alignment mainly focuses on the distribution and pointing accuracy of the laser beam in the fast and slow axis directions.

[0003] In a fiber-coupled module, the propagation speeds of the fast axis and the slow axis are different, which affects the quality and performance of the laser beam. The beam divergence angle in the fast axis direction is large, while the beam divergence angle in the slow axis direction is small. Therefore, when performing fast and slow axis collimation, different treatments are required for these two directions.

[0004] The purpose of collimation is to keep the laser beam parallel and stable during propagation. For the slow axis direction, more attention is paid to the pointing accuracy and stability of the beam to ensure the precise focusing of the laser beam at the target position. If there is an error in the slow axis collimation, it will directly affect the coupling efficiency and module NA of the fiber coupling module, and even cause the problem of end face burning at the fiber input end.

[0005] Chinese patent document CN215732672U discloses a SAC coupling positioning fixture, and Chinese patent document CN118249191A discloses a slow axis collimating lens packaging fixture and its working method. The above documents do not consider the influence of chip welding tolerance, different incoming batches, etc. on the adjustment accuracy, and need to design a new fixture according to slow axis collimating lenses of different sizes, which is a cumbersome process. Therefore, the present invention is proposed. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an automated high-precision slow-axis collimation device, which can more accurately determine the position of the slow-axis collimation lens and avoid the problem of reduced module coupling efficiency due to module chip position backflow and adjustment accuracy errors.

[0007] The present invention also provides a method for using the above-mentioned automated high-precision slow-axis alignment device.

[0008] The technical solution of the present invention is as follows:

[0009] An automated high-precision slow-axis alignment device comprises a support table, a dispensing mechanism, a power-on mechanism, a lens positioning mechanism, a product positioning plate, a working platform and a six-axis robotic arm, wherein:

[0010] A working platform is arranged on the support table, a bracket is arranged on one side of the working platform, a gluing mechanism and a power-on mechanism are arranged on the bracket through an X-axis linear guide, a lens positioning mechanism and a product positioning plate are arranged on the support table on one side of the bracket, a light spot receiving CCD and a six-axis robotic arm are arranged on the opposite side of the working platform, and the six-axis robotic arm is provided with a lens transport assembly and a shell transport assembly through a mounting table.

[0011] Preferably, according to the present invention, the bottom of the product positioning plate is fixed to the support table by positioning pins, and a plurality of placement slots are provided on the product positioning plate. The placement slots are used to place the shell, and a photoelectric sensor is provided at the bottom of the placement slot to detect the presence of the product. An anti-static ion wind rod is provided on one side of the product positioning plate.

[0012] Preferably, according to the present invention, the lens positioning mechanism includes a lens electric cylinder, a lens placing plate and a positioning CCD. A positioning CCD is arranged on one side of the bracket, and a lens placing plate is arranged below the positioning CCD. The lens placing plate is installed at the output end of the lens electric cylinder. The lens electric cylinder is used to drive the lens placing plate to move, so that the lens on the lens placing plate is located directly below the positioning CCD, and the plane position of the lens is recorded.

[0013] Preferably according to the present invention, the lens transport assembly includes a periscope, a support plate, a suction nozzle and a rotating motor. A support plate is provided on the lower side of the mounting platform, the periscope is provided on the support plate, a rotating motor is provided on the lower side of the support plate through a motor bracket, a suction nozzle is provided on the output shaft of the rotating motor, and the suction nozzle is externally connected to a negative pressure fan.

[0014] Preferably, according to the present invention, the shell handling assembly is a clamping cylinder, which is installed on one side of the mounting platform, and is used to clamp the shell on the product positioning plate.

[0015] Preferably, according to the present invention, the dispensing mechanism includes a dispensing cylinder, a dispensing gun and a UV lamp, the upper end of the dispensing cylinder is connected to an X-axis linear guide, and the lower output end of the dispensing cylinder is provided with a dispensing gun and a UV lamp.

[0016] Preferably according to the present invention, the energizing mechanism comprises an energizing cylinder and a PIN needle, the upper end of the energizing cylinder is connected to an X-axis linear guide rail, the lower output end of the energizing cylinder is provided with a PIN needle, and the PIN needle is externally connected to a power source.

[0017] Preferably, according to the present invention, a two-dimensional motion platform is arranged on the working platform, a vacuum adsorption platform is arranged on the upper side of the two-dimensional motion platform, the vacuum adsorption platform is an existing structure, a through hole is built in, a vacuum pump is externally connected to the through hole, and the shell is fixed by negative pressure vacuum.

[0018] The method for using the above-mentioned automated high-precision slow-axis alignment device is as follows:

[0019] (1) The six-axis robot moves to the product positioning plate and uses the gripper cylinder to clamp the shell. The heat sink, COS and other components have been assembled in the shell. The six-axis robot moves the shell to the vacuum adsorption platform;

[0020] (2) The X-axis linear guide moves the glue dispensing mechanism to the top of the housing, the glue dispensing cylinder extends, and the glue dispensing gun dispenses glue at the preset position of the lens in the housing. After the glue dispensing is completed, the glue dispensing mechanism is reset;

[0021] (3) The lens electric cylinder drives the lens placement plate to move so that the slow axis collimating lens on the lens placement plate is located directly below the positioning CCD, and the plane position of the slow axis collimating lens is recorded. Then, the six-axis robot moves to the position of the slow axis collimating lens, and uses a suction nozzle to suck the slow axis collimating lens. Then, the six-axis robot moves the slow axis collimating lens to the dispensing position of step (2);

[0022] (4) The X-axis linear guide moves, the power-on mechanism is moved to the top of the shell, the power-on cylinder is extended, the COS is energized, and the light beam enters the light spot receiving CCD along the slow axis collimating lens and periscope. The position of the slow axis collimating lens is fine-tuned using the six-axis robot and the rotary motor. After the light spot is adjusted to the optimal state, the power-on mechanism is reset, the dispensing mechanism moves to the top of the shell, and the UV lamp is started for curing;

[0023] (5) After the slow-axis collimating lens is fixed, the negative pressure of the nozzle is cancelled, and the six-axis robot arm moves out to complete the collimation installation of the slow-axis collimating lens.

[0024] The beneficial effects of the present invention are:

[0025] 1. The present invention provides an automated high-precision slow-axis collimation device, which can more accurately determine the position of the slow-axis collimation lens, thereby avoiding the problem of reduced module coupling efficiency due to module chip position backflow and adjustment accuracy errors.

[0026] 2. The present invention is provided with a lens positioning mechanism, which uses a positioning CCD to record the position of the slow-axis collimating lens before installation, and compares it with the position of the slow-axis collimating lens after final installation, so as to determine the relative position deviation of the slow-axis collimating lens before installation and after fixation. When performing subsequent large-scale installation, the position of the slow-axis collimating lens can be adjusted in advance after determining the relative position deviation, and then the slow-axis collimating lens can be directly translated to the installation position for curing, thereby reducing subsequent adjustment steps and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the partial structure of the six-axis robot arm of the present invention;

[0029] Figure 3It is a schematic diagram of the structure of the lens handling assembly of the present invention;

[0030] Figure 4 It is a schematic diagram of the product positioning plate structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the installation structure of the X-axis linear guide rail of the present invention;

[0032] Figure 6 It is a schematic diagram of the working platform structure of the present invention;

[0033] The symbols in the above drawings represent:

[0034] 1. Glue dispensing mechanism; 2. Power-on mechanism; 3. Positioning CCD; 4. Lens positioning mechanism; 5. Product positioning plate; 6. Working platform; 7. Light spot receiving CCD; 8. Six-axis robot; 9. Lens transport assembly; 10. Shell transport assembly; 11. Gripper cylinder; 12. Periscope optical path; 13. Periscope; 14. Mounting table; 15. Slow axis collimating lens; 16. Suction nozzle; 17. Rotating motor; 18. Motor bracket; 19. Anti-static ion wind rod; 20. Photoelectric sensor; 21. Positioning pin; 22. Power-on cylinder; 23. Glue dispensing cylinder; 24. Glue dispensing gun; 25. UV lamp; 26. PIN needle; 27. X-axis linear guide; 28. Two-dimensional motion platform; 29. ​​Support table; 30. Vacuum adsorption platform; 31. Bracket. DETAILED DESCRIPTION

[0035] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings, but is not limited thereto.

[0036] Embodiment 1:

[0037] like Figure 1-6 As shown, this embodiment provides an automated high-precision slow-axis alignment device, including a support table 29, a dispensing mechanism 1, a power-on mechanism 2, a lens positioning mechanism 4, a product positioning plate 5, a working platform 6 and a six-axis robotic arm 8, wherein:

[0038] A working platform 6 is arranged on the support table 29, a bracket is arranged on one side of the working platform 6, a glue dispensing mechanism 1 and a power-on mechanism 2 are arranged on the bracket 31 through the X-axis linear guide 27, a lens positioning mechanism 4 and a product positioning plate 5 are arranged on the support table on one side of the bracket, a light spot receiving CCD 7 and a six-axis robot 8 are arranged on the support table on the opposite side of the working platform 6, and the six-axis robot 8 is provided with a lens transport assembly 9 and a shell transport assembly 10 through the mounting table 14.

[0039] The bottom of the product positioning plate 5 is fixed to the support platform 29 by a positioning pin 21. A plurality of placement grooves are arranged on the product positioning plate 5. The placement grooves are used to place the shell. A photoelectric sensor 20 is arranged at the bottom of the placement groove. The presence or absence of the product is detected by the photoelectric sensor 20. A static electricity removal ion wind rod 19 is arranged on one side of the product positioning plate 5.

[0040] The lens positioning mechanism 4 includes a lens electric cylinder, a lens placement plate and a positioning CCD3. A positioning CCD is arranged on one side of the bracket 31, and a lens placement plate is arranged below the positioning CCD3. The lens placement plate is installed at the output end of the lens electric cylinder. The lens electric cylinder is used to drive the lens placement plate to move, so that the lens on the lens placement plate is located directly below the positioning CCD to record the plane position of the lens.

[0041] The lens transport assembly 9 includes a periscope 13, a support plate, a suction nozzle 16 and a rotating motor 17. A support plate is provided on the lower side of the mounting platform 14, and the periscope 13 is provided on the support plate. A rotating motor 17 is provided on the lower side of the support plate through a motor bracket 18. A suction nozzle 16 is provided on the output shaft of the rotating motor 17, and the suction nozzle is externally connected to a negative pressure fan.

[0042] The shell handling component 10 is a clamping claw cylinder 11, which is installed on one side of the mounting platform 14, and is used to clamp the shell on the product positioning plate.

[0043] The glue dispensing mechanism 1 includes a glue dispensing cylinder 23 , a glue dispensing gun 24 and a UV lamp 25 . The upper end of the glue dispensing cylinder 23 is connected to an X-axis linear guide 27 , and the lower output end of the glue dispensing cylinder 23 is provided with a glue dispensing gun 24 and a UV lamp 25 .

[0044] The energizing mechanism 2 comprises an energizing cylinder 22 and a PIN needle 26. The upper end of the energizing cylinder 22 is connected to an X-axis linear guide rail 27. The lower output end of the energizing cylinder is provided with a PIN needle 26, which is externally connected to a power source.

[0045] A two-dimensional motion platform 28 is arranged on the working platform 6, and a vacuum adsorption platform 30 is arranged on the upper side of the two-dimensional motion platform 28. The vacuum adsorption platform is an existing structure with a through hole built in. The through hole is externally connected to a vacuum pump, and the shell is fixed by negative pressure vacuum.

[0046] The method for using the above-mentioned automated high-precision slow-axis alignment device is as follows:

[0047] (1) The six-axis robot moves to the product positioning plate and uses the gripper cylinder to clamp the shell. The heat sink, COS and other components have been assembled in the shell. The six-axis robot moves the shell to the vacuum adsorption platform;

[0048] (2) The X-axis linear guide moves the glue dispensing mechanism to the top of the housing, the glue dispensing cylinder extends, and the glue dispensing gun dispenses glue at the preset position of the lens in the housing. After the glue dispensing is completed, the glue dispensing mechanism is reset;

[0049] (3) The lens electric cylinder drives the lens placement plate to move so that the slow axis collimating lens on the lens placement plate is located directly below the positioning CCD, and the plane position of the slow axis collimating lens is recorded. Then, the six-axis robot moves to the position of the slow axis collimating lens, and uses a suction nozzle to suck the slow axis collimating lens. Then, the six-axis robot moves the slow axis collimating lens 15 to the dispensing position of step (2);

[0050] (4) The X-axis linear guide moves, the power-on mechanism is moved to the top of the shell, the power-on cylinder is extended, the COS is energized, and the light beam enters the light spot receiving CCD along the slow axis collimating lens and periscope. The position of the slow axis collimating lens is fine-tuned using the six-axis robot and the rotary motor. After the light spot is adjusted to the optimal state, the power-on mechanism is reset, the dispensing mechanism moves to the top of the shell, and the UV lamp is started for curing;

[0051] (5) After the slow-axis collimating lens is fixed, the negative pressure of the nozzle is cancelled, and the six-axis robot arm moves out to complete the collimation installation of the slow-axis collimating lens.

[0052] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An automated high-precision slow-axis alignment device, characterized in that: It includes a support table, a dispensing mechanism, a power-on mechanism, a lens positioning mechanism, a product positioning plate, a working platform and a six-axis robotic arm, among which: A working platform is arranged on the support table, a bracket is arranged on one side of the working platform, a gluing mechanism and a power-on mechanism are arranged on the bracket through an X-axis linear guide, a lens positioning mechanism and a product positioning plate are arranged on the support table on one side of the bracket, a light spot receiving CCD and a six-axis robotic arm are arranged on the opposite side of the working platform, and the six-axis robotic arm is provided with a lens transport assembly and a shell transport assembly through a mounting table.

2. The automated high-precision slow-axis alignment device according to claim 1, characterized in that: The bottom of the product positioning plate is fixed to the support platform by positioning pins. A plurality of placement slots are arranged on the product positioning plate. The placement slots are used to place the shell. A photoelectric sensor is arranged at the bottom of the placement slot. An anti-static ion wind rod is arranged on one side of the product positioning plate.

3. The automated high-precision slow-axis alignment device according to claim 2, characterized in that: The lens positioning mechanism includes a lens electric cylinder, a lens placement plate and a positioning CCD. A positioning CCD is arranged on one side of the bracket, a lens placement plate is arranged below the positioning CCD, and the lens placement plate is installed at the output end of the lens electric cylinder.

4. The automated high-precision slow-axis alignment device according to claim 3, characterized in that: The lens transport assembly includes a periscope, a support plate, a suction nozzle and a rotating motor. A support plate is arranged at the lower side of the mounting platform, and a periscope is arranged on the support plate. A rotating motor is arranged at the lower side of the support plate through a motor bracket. A suction nozzle is arranged on the output shaft of the rotating motor, and a negative pressure fan is externally connected to the suction nozzle.

5. The automated high-precision slow-axis alignment device according to claim 4, characterized in that: The shell handling component is a clamping claw cylinder, and the clamping claw cylinder is installed on one side of the mounting platform.

6. The automated high-precision slow-axis alignment device according to claim 5, characterized in that: The dispensing mechanism includes a dispensing cylinder, a dispensing gun and a UV lamp. The upper end of the dispensing cylinder is connected to an X-axis linear guide rail, and the output end of the lower side of the dispensing cylinder is provided with a dispensing gun and a UV lamp.

7. The automated high-precision slow-axis alignment device according to claim 6, characterized in that: The power-on mechanism includes a power-on cylinder and a PIN needle. The upper end of the power-on cylinder is connected to an X-axis linear guide rail, and the lower output end of the power-on cylinder is provided with a PIN needle, which is externally connected to a power source.

8. The automated high-precision slow-axis alignment device according to claim 7, characterized in that: A two-dimensional motion platform is arranged on the working platform, and a vacuum adsorption platform is arranged on the upper side of the two-dimensional motion platform.

9. The method for using the automated high-precision slow-axis alignment device according to claim 8, characterized in that: Here are the steps: (1) The six-axis robot moves to the product positioning plate and uses the gripper cylinder to clamp the shell. The heat sink and COS are assembled in the shell. The six-axis robot moves the shell to the vacuum adsorption platform; (2) The X-axis linear guide moves the glue dispensing mechanism to the top of the housing, the glue dispensing cylinder extends, and the glue dispensing gun dispenses glue at the preset position of the lens in the housing. After the glue dispensing is completed, the glue dispensing mechanism is reset; (3) The lens electric cylinder drives the lens placement plate to move so that the slow axis collimating lens on the lens placement plate is located directly below the positioning CCD, and the plane position of the slow axis collimating lens is recorded. Then, the six-axis robot moves to the position of the slow axis collimating lens, and uses a suction nozzle to suck the slow axis collimating lens. Then, the six-axis robot moves the slow axis collimating lens to the dispensing position of step (2); (4) The X-axis linear guide moves, the power-on mechanism is moved to the top of the shell, the power-on cylinder is extended, the COS is energized, and the light beam enters the light spot receiving CCD along the slow axis collimating lens and periscope. The position of the slow axis collimating lens is fine-tuned using the six-axis robot and the rotary motor. After the light spot is adjusted to the optimal state, the power-on mechanism is reset, the dispensing mechanism moves to the top of the shell, and the UV lamp is started for curing; (5) After the slow-axis collimating lens is fixed, the negative pressure of the nozzle is cancelled, and the six-axis robot arm moves out to complete the collimation installation of the slow-axis collimating lens.

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