CN113231975A

CN113231975A - Clamp, assembly tool and assembly method

Info

Publication number: CN113231975A
Application number: CN202110638389.2A
Authority: CN
Inventors: 高森; 刘浩; 吕瑞波; 杨军红; 王亚磊; 金卫刚; 代华斌; 吴杰彪; 祝桂鹏
Original assignee: Guangdong Guangdong Hong Kong Macao Dawan District Hard Science And Technology Innovation Research Institute
Current assignee: Guangdong Guangdong Hong Kong Macao Dawan District Hard Science And Technology Innovation Research Institute
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-08-10

Abstract

The invention is suitable for the field of film coating of semiconductor lasers, and discloses a clamp, an assembly tool and an assembly method, the assembly tool and the assembly method are used for assembling a laser bar on the clamp, the clamp comprises a fixed frame, clamping plates detachably connected with the fixed frame, and fasteners for connecting the fixed frame and the clamping plates, the middle of the fixed frame is hollowed, the clamps are fixed on the fixed frame by the fasteners, at least two clamping plates are arranged on the clamping plates, two adjacent clamping plates are used for clamping the laser bar, one side of each clamping plate, facing to the other clamping plate, is provided with a V-shaped clamping opening, and the laser bar is clamped in the V-shaped clamping openings of the two adjacent clamping plates, so that the contact between the clamp and the end surface of the laser bar is line contact, the laser bar can be subjected to film coating treatment in all directions, and the laser bar has uniform film coating thickness, and the thickness of the clamp is greater than that of the laser bar, so that the phenomenon of warping of the laser bar can be avoided.

Description

Clamp, assembly tool and assembly method

Technical Field

The invention relates to the technical field of semiconductor laser coating, in particular to a clamp, an assembly tool and an assembly method for clamping a laser bar.

Background

The semiconductor Laser (LD) has the advantages of small volume, light weight, high conversion efficiency, long service life and the like, is widely applied to the fields of solid laser pumping, industrial processing, laser medical treatment, military and the like, and has very wide application prospect and market value. In the process of semiconductor laser chip production, end face coating of a laser bar is one of very important process steps. The good coating effect can optimize the threshold current and the emitting efficiency of the laser, and finally the single-sided maximum laser power output is realized.

The existing end face coating clamp for the strip-shaped semiconductor laser is various in types, is applied to a coating process and mainly aims to clamp a certain number of chip bearing seats which are arranged in parallel. The existing clamp has many problems, which are as follows:

1. the fixture is unreasonable in structural design, and is easy to fall off wholly due to misoperation in the process of mounting the fixture on the support of the coating furnace, and meanwhile, the fixture can not effectively clamp the movable end of the fixture due to the clamping of the fixed end of the support of the coating furnace in the coating process, so that workpieces fall off.

2. When the product is loaded into the clamp, the assembly is difficult, the movable end of the clamp needs to be manually pressed in the operation, and the requirement on the skill of personnel is higher, so that the working efficiency is lower, the strip loading success rate is not high, and the product loss is easily caused.

3. The width or the thickness of the product end clamped by the clamp is fixed, and the product with different widths or thicknesses can not be correspondingly adjusted. Especially for the thickness of the bar, if the width of the bar is smaller than the thickness of the clamping bar end, the thickness of a plated film is not uniform because a product is shielded by the clamping bar end in the film plating process; on the contrary, if the width of the bar is much thicker than the thickness of the clamping end, the product is easy to warp, the gap of the product is increased, and the coating film material is easy to permeate.

Disclosure of Invention

The first purpose of the invention is to provide a clamp, wherein the clamping opening of the clamping plate is a V-shaped clamping opening, the contact between the clamping plate and the end face of the laser bar is a line contact, the laser bar can be coated in all directions, and the clamp can be suitable for laser bars with different end face thicknesses.

In order to achieve the purpose, the invention provides the following scheme:

a clamp for clamping a laser bar, the clamp comprising a fixed frame, a clamping plate detachably connected with the fixed frame, and a fastener for connecting the fixed frame and the clamping plate, the middle of the fixed frame is hollowed, the fixed frame comprises a first fixed edge and a second fixed edge, the first fixing edge and the second fixing edge are both provided with sliding grooves, one end of the clamping plate is arranged on the first fixing edge, the other end of the clamping plate is arranged on the second fixing edge, the fastening piece penetrates through the sliding grooves to be connected with the clamping plate, the fastener can slide along the sliding groove, at least two clamping plates are arranged, every two adjacent clamping plates are used for clamping the laser bar, and one side of each clamping plate facing to the other clamping plate is provided with a V-shaped clamping opening, and the laser bars are clamped in the V-shaped clamping openings of the two adjacent clamping plates.

Preferably, characterized in that, the both ends of splint all are provided with the screw hole, the fastener is the screw, the screw with the screw hole adaptation.

Preferably, the clamping plate is characterized in that step positions are concavely arranged at two ends of the clamping plate, the threaded holes are formed in the step positions, and the fixing frame is assembled on the step positions.

Preferably, the clamping plate is provided with a positioning hole.

Preferably, the fixed frame is provided with a connecting hole, and the connecting hole is used for being connected with a film coating machine.

A second object of the present invention is to provide an assembly fixture, the assembly fixture is used for assembling a laser bar onto the fixture, the clamping plate is provided with a positioning hole, the assembly fixture includes a loading table, a first push rod, a second push rod and a positioning pin adapted to the positioning hole of the clamping plate, a gas channel is arranged inside the loading table, a gas inlet communicated with the gas channel is arranged on a side surface of the loading table, the gas inlet is used for accessing a negative pressure system, a groove and a boss are arranged on a top of the loading table, a gas outlet communicated with the gas channel is arranged in the boss in a penetrating manner, the two grooves are respectively arranged on two sides of the boss, the first push rod is slidably connected with one of the grooves, the second push rod is slidably connected with the other groove, a first mounting groove adapted to an end of the clamping plate and two ends of the first push rod are respectively arranged on two ends of the first push rod The first mounting hole of mounting groove intercommunication, first mounting hole with the locating pin adaptation, second push rod both ends all be provided with the second mounting groove of splint tip adaptation and with the second mounting hole of second mounting groove intercommunication, the second mounting hole with the locating pin adaptation.

Preferably, the bottom of the first push rod and the bottom of the second push rod are both provided with a sliding block, and the sliding blocks are connected in the grooves in a sliding mode.

Preferably, the assembly fixture further comprises a bread board, wherein standard threaded holes are uniformly formed in the bread board, through holes are formed in four corners of the loading table, and the loading table is fixedly connected to the bread board through screws.

A third object of the present invention is to provide an assembling method for assembling a laser bar to a jig as described above, the assembling method including the steps of:

step S10, providing the assembly tool, placing a group of laser device bars on the boss, connecting a negative pressure system to the air inlet, and adsorbing the laser device bars on the boss through the negative pressure system to complete the positioning of the laser device bars;

step S20, after the first mounting hole and the second mounting hole are respectively provided with the positioning pins, the clamping plates are respectively installed in the first mounting groove and the second mounting groove, and the positioning holes of the clamping plates are inserted into the positioning pins, so as to complete the positioning of the clamping plates;

step S30, respectively assembling the first push rod and the second push rod on the loading platform to complete the positioning of the first push rod and the second push rod;

step S40, sliding the first push rod and the second push rod to enable the end faces of the two sides of the laser bar to be clamped in the V-shaped clamping ports of the two clamping plates, and completing the assembly of a group of laser bars;

step S50, connecting the fixed frame and the clamping plate through a fastener to complete the assembly of the clamping plate and the fixed frame;

step S60, the fixed frame is taken down, the positions of the first push rod and the second push rod are adjusted, a clamping plate close to the inside of the fixed frame is installed on the first push rod, a new clamping plate is placed on the second push rod, and the positioning of the clamping plate is completed;

step S70, a new group of laser bars are placed on the boss, and the laser bars are adsorbed on the boss under the action of the negative pressure system to complete the positioning of the laser bars;

step S80, sliding the first push rod and the second push rod to enable the end faces of the two sides of the laser bar to be clamped in the V-shaped clamping ports of the two clamping plates, and completing the assembly of the laser bar;

step S90, connecting the fixed frame and the clamping plate on the second push rod through a fastener to complete the assembly of the clamping plate and the fixed frame;

and S100, repeating the steps S60-S90 for a plurality of times until the assembly of the plurality of groups of laser bars is completed.

The clamp provided by the invention has the following advantages:

first, the region of digging out in the middle of the fixed frame is used for placing the splint that press from both sides and be equipped with the laser instrument barre for the laser instrument barre is two-sided not to have shelters from, and consequently, this anchor clamps are suitable for the coating machine of any form, and the coating film of two sides just can be realized to the one-time dress strip moreover, thereby can reduce the secondary damage to the product.

Secondly, the clamping opening of the clamping plate is a V-shaped clamping opening, so that the clamp is in line contact with the end face of the laser bar, and the laser bar can be coated in all directions, so that the laser bar has uniform coating thickness.

Thirdly, the clamping opening of the clamping plate is a V-shaped clamping opening, so that the thickness of the clamping plate is larger than that of the laser bar, and the phenomenon of warping of the laser bar can be avoided.

Fourthly, the clamping opening of the clamping plate is a V-shaped clamping opening, so that the clamping plate can be suitable for laser bars with different end surface thicknesses.

The assembly tool provided by the invention is simple in structure, novel in design, strong in practicability and convenient to assemble. The assembly tool provided by the invention has the advantages that the negative pressure system is connected to the loading platform to ensure that the laser bar can not move randomly, the positions of the clamping plates are adjusted through the positions of the first push rod and the second push rod, the clamping plates do not need to be manually pressed by operators, the operation of the operators is simplified, and the assembly success rate and the assembly efficiency are improved.

According to the assembling method provided by the invention, the laser bar is assembled on the assembling tool, the negative pressure system is connected to the loading platform during assembling to ensure that the laser bar does not move randomly, the position of the clamping plate is adjusted by adjusting the positions of the first push rod and the second push rod, the clamping plate does not need to be manually pressed by an operator, the operation of the operator is simplified, and the success rate of assembling and adjusting and the assembling efficiency are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a clamp according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of a clip provided by an embodiment of the present invention;

FIG. 3 is a schematic view of an assembly fixture and a fixture according to an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of an assembly fixture and fixture provided in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of a combination of a loading platform, a first push rod, a second push rod and a clamp provided by an embodiment of the invention;

FIG. 6 is a schematic structural diagram of a loading platform provided in an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an assembly method of a laser bar according to an embodiment of the present invention.

The reference numbers illustrate:

10. a fixed frame; 11. a first fixed edge; 12. a second fixed edge; 121. a chute;

20. a splint; 21. a V-shaped clamping opening; 22. a threaded hole; 23. a step position; 24. positioning holes;

30. a fastener;

100. a loading table; 101. a gas channel; 102. an air inlet; 103. a groove; 104. a boss; 105. an air outlet;

200. a first push rod; 201. a first mounting groove; 202. a first mounting hole;

300. a second push rod; 301. a second mounting groove; 302. a second mounting hole;

400. positioning pins;

500. a bread board;

3. laser bars.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 5, which are a fixture for holding a laser bar 3 according to an embodiment of the present invention, the laser bar 3 is small, and generally has a length of 5 to 10.8mm, a width of 1 to 3mm, and a thickness of 0.25 to 1 mm. The clamping opening of the clamp is a V-shaped clamping opening 21, so that the clamp is in line contact with the end face of the laser bar 3, the laser bar 3 can be comprehensively subjected to film coating treatment, the laser bar 3 has uniform film coating thickness, and the thickness of the clamp is greater than that of the laser bar 3, so that the phenomenon that the laser bar 3 is warped can be avoided.

Referring to fig. 1 to 5, a clamp according to an embodiment of the present invention includes a fixing frame 10, a clamping plate 20 detachably connected to the fixing frame 10, and a fastening member 30 for connecting the fixing frame 10 and the clamping plate 20, the fixing frame 10 is hollowed out, the fixing frame 10 includes a first fixing edge 11 and a second fixing edge 12, the first fixing edge 11 and the second fixing edge 12 are both provided with a sliding slot 121, one end of the clamping plate 20 is mounted on the first fixing edge 11, the other end of the clamping plate 20 is mounted on the second fixing edge 12, the fastening member 30 passes through the sliding slot 121 to be connected to the clamping plate 20, and the fastening member 30 can slide along the sliding slot 121, so that the clamping plates 20 can be fixed at different positions of the fixing frame 10, at least two clamping plates 20 are provided, adjacent two clamping plates 20 are used for clamping the laser bars 3, and one side of each clamping plate 20 facing the other clamping plate 20 is provided with a V-shaped clamping opening 21, and the laser bars 3 are clamped in the V-shaped clamping openings 21 of the two adjacent clamping plates 20.

It can be understood that the sliding groove 121 of the first fixing edge 11 may be configured as a long sliding groove 121, or may be configured by a plurality of short sliding grooves 121, in order to facilitate adjusting the position of the clamping plate 20 and to limit the position of the clamping plate 20, the sliding groove 121 of the embodiment of the present invention is configured by a plurality of short sliding grooves 121, each short sliding groove 121 may have a different length, and may be adapted to one clamping plate 20 or two clamping plates 20, or may maximally load the laser bar 3 according to laser bars 3 with different dimensions. The sliding groove 121 of the second fixing edge 12 is disposed corresponding to the sliding groove 121 of the first fixing edge 11.

Optionally, both ends of the clamping plate 20 are provided with threaded holes 22, the fastening member 30 is a screw, the screw is adapted to the threaded hole 22, the clamping plate 20 and the fixing frame 10 are connected by the screw, the connection mode is simple, and the adjustment is convenient.

Further, the clamping plate 20 is concavely provided with step positions 23 at both ends, the threaded hole 22 is arranged on the step positions 23, and the fixing frame 10 is assembled on the step positions 23, so that the assembly efficiency can be further improved.

Optionally, the clamping plate 20 is provided with a positioning hole 24.

It should be noted that the fixing frame 10 is provided with a connecting hole (not shown) matched with the coating machine, and the fixing frame 10 equipped with the laser bar 3 is placed in the coating machine. The upper surface and the lower surface of the laser bar 3 are suspended, and the V-shaped clamping opening 21 of the clamping plate 20 is in line contact with the laser bar 3, so that the film coating effect is not influenced. In addition, through splint 20 centre gripping laser device barre 3, safe and reliable can prevent to drop the back pollution material source.

Further, the fixing frame 10 can perform a turning motion relative to the coating machine, so that double-sided coating of the laser bar 3 can be realized.

The clamp provided by the embodiment of the invention has the following advantages:

firstly, the area hollowed in the middle of the fixed frame 10 is used for placing the clamping plate 20 clamped with the laser bar 3, so that the two sides of the laser bar 3 are not shielded, the clamp is suitable for any type of film coating machine, and the two-side film coating can be realized by one-time bar loading, so that the secondary damage to the product can be reduced.

Secondly, the clamping opening of the clamping plate 20 is a V-shaped clamping opening 21, so that the clamp is in line contact with the end face of the laser bar 3, and the laser bar 3 can be coated comprehensively, so that the laser bar 3 has uniform coating thickness.

Thirdly, since the clamping opening of the clamping plate 20 is a V-shaped clamping opening 21, the thickness of the clamping plate 20 is larger than that of the laser bar 3, and thus the phenomenon of warping of the laser bar 3 can be avoided.

Fourth, the clamping opening of the clamping plate 20 is a V-shaped clamping opening 21, so that the clamping plate 20 can be applied to laser bars 3 with different end face thicknesses.

Referring to fig. 1-6, the embodiment of the invention further provides an assembly tool for assembling the laser bar 3 on the fixture, that is, for assembling the laser bar 3 on the clamping plate 20, and then assembling the clamping plate 20 on the fixing frame 10. The assembling tool is simple in structure, novel in design, high in practicability and simple and convenient to assemble, simplifies personnel operation, and improves the assembling and debugging success rate and assembling efficiency.

The assembly fixture provided by the embodiment of the invention comprises a loading platform 100, a first push rod 200, a second push rod 300 and a positioning pin 400 matched with a positioning hole 24 of a clamping plate 20, wherein a gas channel 101 is arranged inside the loading platform 100, a gas inlet 102 communicated with the gas channel 101 is arranged on the side surface of the loading platform 100, the gas inlet 102 is used for being connected with a negative pressure system, a groove 103 and a boss 104 are arranged at the top of the loading platform 100, a gas outlet 105 communicated with the gas channel 101 is arranged in a penetrating manner on the boss 104, two grooves 103 are arranged on the groove 103, the two grooves 103 are respectively arranged on two sides of the boss 104, the first push rod 200 is in sliding connection with one groove 103, the second push rod 300 is in sliding connection with the other groove 103, a first mounting groove 201 matched with the end part of the clamping plate 20 and a first mounting hole 202 communicated with the first mounting groove 201 are arranged at two ends of the first push rod 200, and the first mounting hole 202 is matched with the positioning pin 400, the second push rod 300 is provided at both ends with the second mounting groove 301 of splint 20 end adaptation and the second mounting hole 302 that communicates with the second mounting groove 301, the second mounting hole 302 and locating pin 400 adaptation.

Optionally, the bottom of the first push rod 200 and the bottom of the second push rod 300 are both provided with a slider (not shown), and the sliders are slidably connected in the grooves 103, so that the connection relationship is simple and reliable.

The assembly tool further comprises a bread board 500, wherein standard threaded holes 22 are uniformly formed in the bread board 500, and through holes are formed in four corners of the loading platform 100 and are fixedly connected to the bread board 500 through screws.

The assembling steps of the assembling tool of the embodiment of the invention are as follows:

step S10, providing the assembly fixture as described above, placing a group of laser bars 3 on the boss 104, connecting the air inlet 102 to the negative pressure system, and adsorbing the laser bars 3 on the boss 104 through the negative pressure system to complete the positioning of the laser bars 3.

In step S20, the positioning pins 400 are respectively installed in the first installation hole 202 and the second installation hole 302, the clamping plate 20 is respectively installed in the first installation groove 201 and the second installation groove 301, and the positioning holes 24 of the clamping plate 20 are inserted into the positioning pins 400, thereby completing the positioning of the clamping plate 20.

In step S30, the first push rod 200 and the second push rod 300 are respectively assembled on the loading table 100, and the positioning of the first push rod 200 and the second push rod 300 is completed.

Step S40, sliding the first push rod 200 and the second push rod 300 to make the two side end faces of the laser bar 3 horizontally clamped in the V-shaped clamping openings 21 of the two clamping plates 20, thereby completing the assembly of the group of laser bars 3.

In step S50, the fixing frame 10 and the clamping plate 20 are connected by the fastener 30, and the clamping plate 20 and the fixing frame 10 are assembled.

Step S60 is to remove the fixed frame 10, adjust the positions of the first push rod 200 and the second push rod 300, mount the clamp plate 20 inside the fixed frame on the first push rod 200, and place a new clamp plate 20 on the second push rod 300.

Step S70, assembling a new set of laser bars 3, placing the new set of laser bars 3 on the boss 104, and adsorbing the laser bars 3 on the boss 104 under the action of the negative pressure system.

Step S80, sliding the first push rod 200 and the second push rod 300 to make the two side end faces of the laser bar 3 horizontally clamped in the V-shaped clamping openings 21 of the two clamping plates 20, thereby completing the assembly of the laser bar 3.

In step S90, the fixing frame 10 is connected to the clamping plate 20 of the second push rod 300 by the fastener 30, and the assembly of the clamping plate 20 and the fixing frame 10 is completed.

And S100, repeating the steps S60-S90 for a plurality of times until the assembly of the plurality of groups of laser bars 3 is completed, and after the laser bars 3 are fully assembled on the fixing frame 10 or a preset number of laser bars 3 are assembled, putting the fixing frame 10 with the laser bars 3 into a film coating machine to complete the film coating operation of the laser bars 3.

The assembly tool disclosed by the embodiment of the invention is simple in structure, novel in design, strong in practicability and convenient to assemble. In addition, the assembly fixture of the embodiment of the invention ensures that the laser batten 3 does not move freely by connecting the negative pressure system to the loading platform 100, adjusts the position of the clamping plate 20 by adjusting the positions of the first push rod 200 and the second push rod 300, does not need an operator to manually press the clamping plate 20, simplifies the operation of the operator, and improves the success rate of assembly and adjustment and the assembly efficiency.

Referring to fig. 1 to 7, an embodiment of the present invention further provides an assembling method of a laser bar 3, including the following steps:

step S10, a group of laser bars 3 is placed on the boss 104, the air inlet 102 is connected to the negative pressure system, and the laser bars 3 are adsorbed on the boss 104 through the negative pressure system, thereby completing the positioning of the laser bars 3.

According to the assembling method provided by the embodiment of the invention, the laser bar 3 is assembled on the assembling tool, the negative pressure system is connected to the loading platform 100 during assembling to ensure that the laser bar 3 does not move randomly, the position of the clamping plate 20 is adjusted by adjusting the positions of the first push rod 200 and the second push rod 300, the clamping plate 20 does not need to be manually pressed by an operator, the operation of the operator is simplified, and the assembling success rate and the assembling efficiency are improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A clamp for clamping a laser bar, the clamp comprising a fixed frame, a clamping plate detachably connected to the fixed frame, and a fastener for connecting the fixed frame to the clamping plate, the middle of the fixed frame is hollowed, the fixed frame comprises a first fixed edge and a second fixed edge, the first fixing edge and the second fixing edge are both provided with sliding grooves, one end of the clamping plate is arranged on the first fixing edge, the other end of the clamping plate is arranged on the second fixing edge, the fastening piece penetrates through the sliding grooves to be connected with the clamping plate, the fastener can slide along the sliding groove, at least two clamping plates are arranged, every two adjacent clamping plates are used for clamping the laser bar, and one side of each clamping plate facing to the other clamping plate is provided with a V-shaped clamping opening, and the laser bars are clamped in the V-shaped clamping openings of the two adjacent clamping plates.

2. The clamp of claim 1, wherein both ends of the clamping plate are provided with threaded holes, and the fastening member is a screw adapted to the threaded holes.

3. The jig as claimed in claim 2, wherein the clamping plate is concavely provided at both ends thereof with stepped portions, the screw holes are provided at the stepped portions, and the fixing frame is fitted to the stepped portions.

4. The clamp of claim 1, wherein said clamping plate is provided with a locating hole.

5. The fixture of claim 1, wherein the fixture frame has attachment holes for attachment to a coater.

6. An assembly fixture, characterized in that the assembly fixture is used for assembling a laser bar on the clamp of any one of claims 1, 2, 3, and 5, a positioning hole is arranged on the clamping plate, the assembly fixture comprises a loading table, a first push rod, a second push rod, and a positioning pin adapted to the positioning hole of the clamping plate, a gas channel is arranged inside the loading table, a gas inlet communicated with the gas channel is arranged on the side surface of the loading table, the gas inlet is used for accessing a negative pressure system, a groove and a boss are arranged on the top of the loading table, a gas outlet communicated with the gas channel is arranged on the boss in a penetrating manner, two grooves are respectively arranged on two sides of the boss, the first push rod is connected with one of the grooves in a sliding manner, the second push rod is connected with the other groove in a sliding manner, first push rod both ends all be provided with the first mounting groove of splint tip adaptation and with the first mounting hole of first mounting groove intercommunication, first mounting hole with the locating pin adaptation, second push rod both ends all be provided with the second mounting groove of splint tip adaptation and with the second mounting hole of second mounting groove intercommunication, the second mounting hole with the locating pin adaptation.

7. The assembly tooling of claim 6, wherein the bottom of the first push rod and the bottom of the second push rod are both provided with a slider, and the sliders are slidably connected in the grooves.

8. The assembly tool according to claim 6, further comprising a bread board, wherein standard threaded holes are uniformly formed in the bread board, through holes are formed in four corners of the loading table, and the loading table is fixedly connected to the bread board through screws.

9. An assembly method for assembling a laser bar to a fixture according to any one of claims 1, 2, 3, 5, the assembly method comprising the steps of:

step S10, providing the assembly tool according to any one of claims 6 to 8, placing a group of laser bars on the boss, connecting a negative pressure system to the air inlet, and adsorbing the laser bars on the boss through the negative pressure system to complete the positioning of the laser bars;