CN111404022B - Multi-path power supply and clamping positioning coupling device for miniature BOX type laser - Google Patents
Multi-path power supply and clamping positioning coupling device for miniature BOX type laser Download PDFInfo
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- CN111404022B CN111404022B CN202010332788.1A CN202010332788A CN111404022B CN 111404022 B CN111404022 B CN 111404022B CN 202010332788 A CN202010332788 A CN 202010332788A CN 111404022 B CN111404022 B CN 111404022B
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- 238000009499 grossing Methods 0.000 claims abstract description 48
- 238000006073 displacement reaction Methods 0.000 claims description 3
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0235—Method for mounting laser chips
- H01S5/02355—Fixing laser chips on mounts
- H01S5/02365—Fixing laser chips on mounts by clamping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/023—Mount members, e.g. sub-mount members
- H01S5/0231—Stems
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- Condensed Matter Physics & Semiconductors (AREA)
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- Plasma & Fusion (AREA)
- Casings For Electric Apparatus (AREA)
- Lasers (AREA)
Abstract
The invention belongs to the technical field of production processes of miniature BOX type lasers in the optical communication industry, and relates to a multipath power supply and clamping positioning coupling device for the miniature BOX type lasers. One side of the device main body is provided with a vertical through groove, and one side of the upper part of the through groove is provided with two mutually vertical positioning steps; the other side of the device main body is provided with 3 positioning grooves for installing two smoothing components; the jacking screw is arranged on the side surface of the device main body and used for fixing the part to be coupled; the upper parts of the two straightening parts are respectively provided with a tooth-shaped concave-convex comb structure and are used for straightening the energizing tube legs of the parts to be coupled so as to be in one-to-one corresponding contact with the vertical wire lines on the two energizing plates. The invention can effectively realize the multipath reliable power supply and high-consistency accurate clamping of the parts to be coupled in the production process of the miniature BOX laser, effectively improve the production efficiency, reduce the waste of raw materials and reduce the production cost.
Description
Technical Field
The invention belongs to the technical field of production processes of miniature BOX type lasers in the optical communication industry, and relates to a multipath power supply and clamping positioning coupling device for the miniature BOX type lasers.
Background
When the BOX type laser is used for carrying out the process of coupling the pin adapter, the power is required to be supplied to the to-be-coupled component, the to-be-coupled component is clamped in a fixed mode to accurately align with the pin adapter, some products with high requirements also need to be started to be coupled under the condition that the constant temperature of a laser chip is ensured by an electric refrigerator packaged in the laser, and the requirements on multipath power supply and accurate clamping of the to-be-coupled component are provided. However, the size requirements of the laser are continuously increasing, the BOX type laser is continuously moving towards miniaturization, the size is smaller and smaller, but the number of the power-on tube legs is larger and larger, for example, the number of the power-on tube legs on the tube shell of a common 10G EML TOSA with refrigeration for the BOX package of an SFP+ type module is 9, and the diameters of the tube legs are smaller, and the spacing between the tube legs is smaller.
The current method adopted in the industry is to cut off the overlong part of the pipe leg on the product, weld the flexible circuit board on the product, and then power the product by powering up the other end of the flexible circuit board. This is a waste in raw materials, and other defects occurring in the subsequent process can only be discarded together with the whole soft board, and in actual production, the production rhythm is also affected, and the production efficiency is reduced.
Because the tube legs on the parts to be coupled are inevitably subjected to external force in the technical process and the transferring process in the actual production process, the tube legs on the two sides can deform, so that the tube legs become disordered, and the direct power-on of the parts to be coupled is difficult, and at present, a method and equipment for directly powering up and coupling the micro BOX type laser do not exist.
Disclosure of Invention
In order to solve the problems, the invention provides a method and a device for realizing multi-channel power supply and accurate clamping of a miniature BOX type laser, which effectively realize multi-channel reliable power supply and high-consistency clamping of a part to be coupled in the production process of the miniature BOX type laser and improve the production efficiency.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a multipath power supply and clamping positioning coupling device for a miniature BOX laser comprises a device main body 1, a tightening screw 3, a first smoothing component 4, a second smoothing component 5, a first power-up plate 6 and a second power-up plate 7.
The device main body 1 comprises a bottom plate and a mounting seat, and is of an integrated structure and is in a convex shape; the bottom plate is provided with a through hole for fixing the device on a horizontal displacement table on the coupler; one side of the mounting seat is provided with an open vertical through groove, the mounting seat penetrates through the whole device main body 1, the upper part of the mounting seat is also provided with a transverse groove, the transverse groove is positioned on one side of the vertical through groove and is communicated with the vertical through groove, and the position of the part to be coupled 2 is conveniently adjusted by the transverse groove; the side surface of the mounting seat is provided with a through screw hole which is positioned above the transverse slot and is used for mounting the jacking screw 3;
a first power-on plate 6 and a second power-on plate 7 are respectively arranged on two opposite side walls in the vertical through groove and are positioned below the transverse grooves; the first power-on plate 6 and the second power-on plate 7 are printed circuit boards with wire circuits thereon, and the wire circuits correspond to the power-on tube legs 11 of the component 2 to be coupled; a positioning step a16 and a positioning step b18 are arranged on one side wall in the vertical through groove, the positioning step a16 and the positioning step b18 are vertically arranged and correspond to the appearance of a pipe shell of the part 2 to be coupled, and are positioned on one side opposite to the jacking screw 3, the pipe shell of the part 2 to be coupled is clamped on the positioning step a16 and the positioning step b18 to realize positioning, and the tightening is realized through the jacking screw 3;
A first positioning groove 8, a second positioning groove 9 and a third positioning groove 10 are arranged on the other side of the mounting seat, and the three positioning grooves penetrate through the wall body of the mounting seat and are communicated with the vertical through grooves; the three positioning grooves are parallel to each other, wherein the second positioning groove 9 and the third positioning groove 10 are positioned at the same height, and the first positioning groove 8 is positioned above the middle position of the second positioning groove 9 and the third positioning groove 10; the inner sides of the top ends of the second positioning groove 9 and the third positioning groove 10 are provided with clamping grooves for clamping the third shaft 14 and the second shaft 13;
The first smoothing part 4 and the second smoothing part 5 are similar in structure and are formed by butt-joint and assembly of two L-shaped rods, after assembly, the top and the bottom of the first smoothing part are horizontal rods, the two horizontal rods are arranged at 90 degrees, the top horizontal rod is provided with a toothed concave-convex comb structure, and the size of the top horizontal rod corresponds to that of the energizing tube leg 11; the first smoothing part 4 is provided with a shaft III 14 on a horizontal rod at the bottom and a through hole in the middle; the second straightening part 5 is provided with a second shaft 13 on a horizontal rod at the bottom, the middle part of the second shaft is provided with a first shaft 12, the first shaft 12 penetrates through a through hole in the middle part of the first straightening part 4, the first straightening part 4 and the second straightening part 5 are assembled into a whole, and comb structures at the tops of the first straightening part 4 and the second straightening part 5 are both positioned at the outer side; the first shaft 12, the third shaft 14 and the second shaft 13 pass through the vertical through grooves and are respectively arranged in the first positioning groove 8, the second positioning groove 9 and the third positioning groove 10, the distance between the first power-on component 4 and the second power-on component 5 is adjusted by adjusting the distance between the shafts of the third shaft 14 and the second shaft 13, and the first power-on component 4 and the second power-on component 5 are in a closed state when the shafts of the third shaft 14 and the second shaft 13 are clamped in the clamping grooves at the tops of the second positioning groove 9 and the third positioning groove 10, the other positions are in an open state, the power-on tube legs 11 are unfolded and smoothed by the comb-shaped structure, and in the open state, the two rows of power-on tube legs 11 on the component 2 to be coupled are in contact with corresponding wire circuits on the first power-on board 6 and the second power-on board 7, so that multiple circuits of the component 2 to be coupled are realized by supplying power to the power-on board.
The beneficial effects of the invention are as follows:
The invention can effectively realize the multipath reliable power supply and high-consistency accurate clamping of the parts to be coupled in the production process of the miniature BOX type laser, effectively improve the production efficiency, reduce the waste of raw materials in the working procedure and further reduce the production cost.
Drawings
FIG. 1 is a schematic diagram of a multi-channel power supply and clamping positioning coupling device for a BOX laser;
fig. 2 (a), 2 (b), 2 (c) and 2 (d) are schematic views of the main structure of the device, which are respectively a left view, a front view, a right view and three views;
FIG. 3 is a schematic view of the components to be coupled;
FIG. 4 is a schematic view of a second stroking member;
FIG. 5 is a schematic view of a stroking member;
FIG. 6 is an assembled schematic of a first and second stroking units;
FIGS. 7 (a), 7 (b) and 7 (c) are schematic views of the assembly of a first and second stroking members with a main body, left, three and right views, respectively;
FIG. 8 is a schematic diagram of a power-on board number one;
Fig. 9 (a) and 9 (b) are three views of two different angles, respectively, showing the installation positions of the first power-up plate and the second power-up plate with the main body;
FIGS. 10 (a) and 10 (b) are schematic illustrations of the clamping positions of the parts to be coupled and the main body;
Fig. 11 (a), 11 (b) and 11 (c) are schematic diagrams of positions of the first shaft, the second shaft and the third shaft in different states, namely a first position, a second position and a third position;
In the figure, a device main body 1, a part to be coupled 2, a tightening screw 3, a first smoothing part 4, a second smoothing part 5, a first power-on plate 6, a second power-on plate 7, a first positioning groove 8, a second positioning groove 9, a third positioning groove 10, a third power-on tube leg 11, a first 12 shaft, a second 13 shaft, a third 14 shaft, a lower edge of a part to be coupled 15, a 16 positioning step a, a right edge of a part to be coupled 17 and a 18 positioning step b.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and technical schemes.
As shown in fig. 1, the invention relates to a multipath power supply and clamping positioning coupling device for a miniature BOX laser, which comprises a device main body 1, a part to be coupled 2, a tightening screw 3, a first smoothing part 4, a second smoothing part 5, a first power-up plate 6 and a second power-up plate 7. The device main body 1 is of an integral structure, is processed by adopting a precise numerical control technology, and performs void avoidance treatment on a part which is possibly interfered so as to ensure that the actual size meets the design requirement; the whole device body 1 is in a convex shape, two sides of the bottom plate are respectively provided with a through hole, and the two through holes are connected with a horizontal displacement table on the coupling machine; one side of the mounting seat of the device main body 1 is provided with a vertical through groove, one side surface of the vertical through groove is provided with a transverse through groove, and the two through grooves are communicated; screw holes are formed above the transverse through grooves and used for installing tightening screws 3, and the tightening screws 3 are used for fixing the to-be-coupled components 2; a positioning step a16 and a setting step b18 are arranged up and down on one side of the vertical through groove far away from the jacking screw 3, correspond to the appearance of the pipe shell of the part to be coupled 2, and are used for positioning the part to be coupled 2, so that the clamping position consistency of the part to be coupled 2 is ensured; the device is characterized in that 3 vertical through grooves which are arranged in a triangular mode are formed in the other side of the device main body 1, the three through grooves are parallel to each other and are a first positioning groove 8, a second positioning groove 9 and a third positioning groove 10 respectively, and the second positioning groove 9 and the third positioning groove 10 are located on the same horizontal height.
As shown in fig. 5, the first smoothing component 4 is formed by assembling two L-shaped rods in a butt joint manner, after the assembly, the top and the bottom of the first smoothing component are horizontal rods, the two horizontal rods are arranged at 90 degrees, and the top horizontal rod is provided with a toothed concave-convex comb structure corresponding to the size and the position of the power-on tube leg 11; the horizontal rod at the bottom of the box body is provided with a shaft III 14, and the middle part of the horizontal rod is provided with a through hole.
As shown in fig. 4, the second smoothing component 5 is formed by assembling two L-shaped rods in a butt joint manner, after the assembly, the top and the bottom of the second smoothing component are horizontal rods, the two horizontal rods are arranged at 90 degrees, and the top horizontal rod is provided with a toothed concave-convex comb structure, which corresponds to the size and the position of the power-on tube leg 11; the horizontal rod at the bottom of the device is provided with a second shaft 13, and the middle of the device is provided with a first shaft 12.
As shown in fig. 6, the first shaft 12 passes through a through hole in the middle of the first smoothing component 4, and the first smoothing component 4 and the second smoothing component 5 are assembled into a whole, and the comb structures at the tops of the first smoothing component 4 and the second smoothing component are both positioned at the outer side; in the process of clamping the to-be-coupled component 2, in order to avoid the phenomenon that the clamping is not performed due to too small distance between the staggered power-on tube legs on the to-be-coupled component 2, the part of the comb-shaped structure can be designed into a triangle.
After the first smoothing part 4 and the second smoothing part 5 are assembled together, the first smoothing part 4 and the second smoothing part 5 are installed in the device main body 1 in a manner shown in fig. 7 (a) to 7 (c), wherein a first shaft 12 on the second smoothing part 5 is inserted into a first positioning groove 8 on the device main body 1, a second shaft 13 on the second smoothing part 5 is inserted into a third positioning groove 10 on the device main body 1, and a third shaft 14 on the first smoothing part 4 is inserted into a second positioning groove 9 on the device main body 1; the inner sides of the top ends of the second positioning groove 9 and the third positioning groove 10 are provided with clamping grooves for clamping the third shaft 14 and the second shaft 13.
As shown in fig. 3, the tail of the component to be coupled 2 has two rows of power-up legs 11.
The first power-on plate 6 and the second power-on plate 7 are printed circuit boards with wire circuits on the upper surfaces and are symmetrically arranged below two sides in the vertical through groove of the device main body 1, as shown in fig. 9; taking the first power board 6 in fig. 8 as an example, the area filled with oblique lines in the drawing is a wire line, the wire line is L-shaped, the number of the wire lines is the same as that of the single-row power-on tube legs 11, the size of the wire line is calculated and designed to ensure that the power-on tube legs 11 of the component 2 to be coupled can be in one-to-one correspondence with the vertical parts of the wire line on the power board under a certain condition, the horizontal parts of the wire line are all positioned at the edge of the opening of the device main body 1, and the size of the wire line is increased, so that the wire line can be conveniently welded to be connected with external power supply equipment.
When the device main body 1 clamps the to-be-coupled component 2, as shown in fig. 10 (a) and 10 (b), the power-on tube leg 11 of the to-be-coupled component 2 is arranged below, the lower edge 15 of the to-be-coupled component is attached to the positioning step a16 on the device main body 1, then the to-be-coupled component moves in the direction indicated by the direction one, the right edge 17 of the to-be-coupled component is attached to the positioning step b18 on the main body, and then the positioning screw 3 is screwed, so that the to-be-coupled component 2 is tightly attached to the device main body 1 and is attached flatly, and the to-be-coupled component 2 is clamped.
The assembly mode of the invention is as follows:
(1) The first smoothing part 4 and the second smoothing part 5 are assembled through a first shaft 12 on the second smoothing part 5, and then the whole device is installed from a vertical slot of the device main body 1, so that the first shaft 12 on the second smoothing part 5 is inserted into a first positioning slot 8 on the device main body 1, a second shaft 13 on the second smoothing part 5 is inserted into a third positioning slot 10 on the device main body 1, and a third shaft 14 on the first smoothing part 4 is inserted into a second positioning slot 9 on the device main body 1.
(2) The first power-on plate 6 and the second power-on plate 7 are symmetrically fixed below two sides in the vertical through groove of the device main body 1.
(3) The jacking screw 3 is assembled and fixed with the device main body 1 through a screw hole on the device main body 1.
(4) When the device main body 1 clamps the component 2 to be coupled, the first shaft 12, the second shaft 13 and the third shaft 14 are inserted into the first positioning groove 8, the third positioning groove 10 and the second positioning groove 9 respectively according to the illustration in fig. 11 (a), and the second shaft 13 and the third shaft 14 move outwards respectively, so that the first smoothing component 4 and the second smoothing component 5 are in a tightening state and are in the first position at the moment, and the assembly of the component 2 to be coupled is not interfered.
(5) The power-on tube leg 11 of the part to be coupled 2 is arranged below, the lower edge 15 of the part to be coupled is attached to the positioning step 16 on the main body, then the part to be coupled moves in the direction shown as the direction I in fig. 10 (a), the right edge 17 of the part to be coupled is attached to the positioning step 18 on the main body, and then the positioning screw 3 is screwed, so that the part to be coupled 2 is tightly attached to and attached to the main body 1 of the device, and the part to be coupled 2 is clamped; at this time, the first smoothing-out part 4 and the second smoothing-out part 5 are positioned between two rows of energizing tube legs 11 on the part to be coupled 2.
(6) Then, according to the direction four shown in fig. 11 (b), the first shaft 12, the second shaft 13 and the third shaft 14 are moved downwards, so that the positions of the first shaft 12, the second shaft 14 and the third shaft 13 are at the position two shown in fig. 11 (b), at this time, the first smoothing part 4 and the second smoothing part 5 are in an open state, the comb structures on the first smoothing part 4 and the second smoothing part 5 are in one-to-one correspondence with the power-up tube legs 11 on the part to be coupled 2, and the power-up tube legs 11 on the part to be coupled 2 are respectively moved towards the directions of the first power-up plate 6 and the second power-up plate 7. In the process, due to the position limiting effect generated by the first smoothing component 4, the second smoothing component 5, the first power-on plate 6 and the second power-on plate 7, the power-on tube legs 11 of the component 2 to be coupled are combed and become straight, and when the first shaft 12, the second shaft 14 and the third shaft 13 are positioned at the middle lower part of the positioning groove, as in the third position in fig. 11 (c), the power-on tube legs 11 of the component 2 to be coupled are respectively correspondingly attached to the wire lines on the first power-on plate 6 and the second power-on plate 7, so that smooth power supply is ensured.
Claims (1)
1. The multipath power supply and clamping positioning coupling device for the miniature BOX type laser is characterized by comprising a device main body (1), a jacking screw (3), a first smoothing component (4), a second smoothing component (5), a first power-on plate (6) and a second power-on plate (7);
The device main body (1) comprises a bottom plate and a mounting seat, is of an integrated structure and is in a convex shape; the bottom plate is provided with a through hole for fixing the device on a horizontal displacement table on the coupler; one side of the mounting seat is provided with an open vertical through groove, the mounting seat penetrates through the whole device main body (1), the upper part of the mounting seat is also provided with a transverse groove, the transverse groove is positioned on one side of the vertical through groove and is communicated with the vertical through groove, and the position of a part (2) to be coupled can be conveniently adjusted through the transverse groove; the side surface of the mounting seat is provided with a through screw hole which is positioned above the transverse slotting and is used for mounting a jacking screw (3); the device main body (1) is of an integral structure, is processed by adopting a precise numerical control technology, and performs void avoidance treatment on a part which is possibly interfered;
A first power-on plate (6) and a second power-on plate (7) are respectively arranged on two opposite side walls in the vertical through groove and are both positioned below the transverse grooves; the first power-on plate (6) and the second power-on plate (7) are printed circuit boards with wire circuits thereon, and the wire circuits correspond to power-on tube legs (11) of the component (2) to be coupled; a positioning step a (16) and a positioning step b (18) are arranged on one side wall in the vertical through groove, the positioning step a (16) and the positioning step b (18) are vertically arranged and correspond to the shell shape of the part to be coupled (2), the part to be coupled is positioned on one side opposite to the jacking screw (3), the shell of the part to be coupled (2) is clamped on the positioning step a (16) and the positioning step b (18) to realize positioning, and the fastening is realized through the jacking screw (3);
A first positioning groove (8), a second positioning groove (9) and a third positioning groove (10) are formed in the other side of the mounting seat, and the three positioning grooves penetrate through the wall body of the mounting seat and are communicated with the vertical through grooves; the three positioning grooves are parallel to each other, wherein the second positioning groove (9) and the third positioning groove (10) are positioned at the same height, and the first positioning groove (8) is positioned above the middle position of the second positioning groove (9) and the third positioning groove (10); the inner sides of the top ends of the second positioning groove (9) and the third positioning groove (10) are provided with clamping grooves for clamping the third shaft (14) and the second shaft (13);
The first smoothing component (4) and the second smoothing component (5) are similar in structure and are formed by butt joint and assembly of two L-shaped rods, after assembly, the top and the bottom of the first smoothing component are horizontal rods, the two horizontal rods are arranged at 90 degrees, the top horizontal rod is provided with a toothed concave-convex comb structure, and the size of the top horizontal rod corresponds to that of the energizing tube leg (11); the first smoothing component (4) is provided with a shaft III (14) on a horizontal rod at the bottom, and a through hole is arranged at the middle part of the first smoothing component; the second straightening component (5) is provided with a second shaft (13) on a horizontal rod at the bottom, the middle part of the second shaft is provided with a first shaft (12), the first shaft (12) penetrates through a through hole in the middle part of the first straightening component (4), the first straightening component (4) and the second straightening component (5) are assembled into a whole, and comb structures at the tops of the first straightening component and the second straightening component are both positioned at the outer side; the first shaft (12), the third shaft (14) and the second shaft (13) pass through the vertical through grooves and are respectively arranged in the first positioning groove (8), the second positioning groove (9) and the third positioning groove (10), the distance between the third shaft (14) and the second shaft (13) is adjusted, so that the distance between the first and second power-on parts (4) and the horizontal rods with tooth-shaped concave-convex shapes at the tops of the second and fourth power-on parts (5) is adjusted, when the third shaft (14) and the second shaft (13) are clamped in the clamping grooves at the tops of the second positioning groove (9) and the third positioning groove (10), the first and second power-on parts (4) and the fourth power-on parts (5) are in a closed state, the rest positions are in an open state, the power-on parts are propped open and smooth through the comb-shaped structure, and when in the open state, the two rows of power-on parts (11) of the power-on parts to be coupled are outwards turned over, the power-on parts (2) and the power-on parts (11) and the corresponding wires of the first power-on plates (6) and the second power-on plates (7) are enabled to be in a power-on state, so that the power-on parts are in a multiple-on state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010332788.1A CN111404022B (en) | 2020-04-24 | 2020-04-24 | Multi-path power supply and clamping positioning coupling device for miniature BOX type laser |
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| CN202010332788.1A CN111404022B (en) | 2020-04-24 | 2020-04-24 | Multi-path power supply and clamping positioning coupling device for miniature BOX type laser |
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| CN111404022A CN111404022A (en) | 2020-07-10 |
| CN111404022B true CN111404022B (en) | 2024-05-03 |
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| CN109346916A (en) * | 2018-11-05 | 2019-02-15 | 中国科学院半导体研究所 | Fixture for semiconductor photoelectronic device test and Lens Coupling |
| CN109560454A (en) * | 2018-12-29 | 2019-04-02 | 中南大学 | Shell grip device for butterfly semiconductor laser automatic coupling package |
| CN209823103U (en) * | 2019-06-28 | 2019-12-20 | 大连优迅科技有限公司 | Butterfly laser instrument power supply tool |
| CN211579191U (en) * | 2020-04-24 | 2020-09-25 | 大连优迅科技有限公司 | Multi-path power supply and clamping positioning coupling device for miniature BOX type laser |
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| CN111404022A (en) | 2020-07-10 |
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