Laser trimming device and method for processing periscopic prism of mobile phone

Abstract

The invention belongs to the technical field of mobile phone periscopic prism machining, and discloses a laser trimming device and method for mobile phone periscopic prism machining, the laser trimming device comprises a main body, a mounting disc and a trimming assembly, and further comprises a positioning mechanism arranged at the top end of the mounting disc; the positioning mechanism comprises a workbench fixedly connected to the top end of the mounting disc, and positioning rods are rotationally connected to the two sides of the outer surface of the workbench. The two positioning rods can be driven to move towards the surface of the prism through the hinge rod, the prism can be pushed to move towards the middle of the workbench, the two positioning rods make contact with the two sides of the prism at the same time, then positioning is completed, finally, the two positioning rods position the prism by driving the adsorption assembly, and the prism moves to the middle of the top end of the workbench. The problems of uneven edge cutting and size errors caused by prism position deviation are effectively avoided, the edge cutting quality is greatly ensured, and the product machining yield and the overall quality are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of mobile phone periscope prism processing, and in particular relates to a laser trimming device and method for processing mobile phone periscope prisms. Background Art

[0002] Laser trimming devices play a key role in the processing of mobile phone periscope prisms. Based on advanced laser cutting technology, laser trimming devices utilize the high energy and high precision of the laser beam to precisely trim the prisms coated with HR film, ensuring precise prism edge dimensions and meeting high-quality production requirements.

[0003] Currently, the traditional laser trimming device used in the processing of mobile phone periscope prisms first coats the HR film on both sides of the prism, then places the prism on the workbench and secures it with suction. After the fixation is completed, the HR film is trimmed using a laser trimming assembly to remove excess HR film and ultimately obtain the HR film size that meets the drawing requirements.

[0004] However, in actual production applications, especially when placing the prism on the workbench and suction cup surface, the position of the prism can easily deviate from the suction cup due to the combined influence of various factors. For one thing, when placing the prism, the operator may be affected by factors such as personal operating habits, fatigue level, and line of sight, making it difficult to accurately place the prism in the exact center of the suction cup. Even a slight deviation can be magnified in the subsequent processing, leading to uneven cutting edges and dimensional errors caused by the prism position deviation, reducing the yield rate and overall quality of the product processing. Summary of the Invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a laser trimming device and method for processing a mobile phone periscope prism.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a laser trimming device for processing a mobile phone periscope prism, comprising a main body, a mounting plate and a trimming assembly, and further comprising:

[0007] A positioning mechanism is provided on the top of the mounting plate;

[0008] The positioning mechanism includes a workbench fixedly connected to the top of the mounting plate, positioning rods are rotatably connected to both sides of the outer surface of the workbench, a cylinder is fixedly installed on the bottom end of the workbench surface, a sealing ring is slidably connected to the inside of the cylinder, the sealing ring and the cylinder are elastically connected by an elastic member, a mounting block is fixedly installed on the top of the sealing ring, and the mounting block and the positioning rod are hinged by a hinge rod;

[0009] The adsorption component is arranged inside the workbench.

[0010] Preferably, the adsorption assembly includes a suction cup fixedly connected to the inside of the workbench, a connecting pipe 1 located inside the bottom end of the workbench is fixedly installed on the surface of the suction cup, a connecting pipe 2 is fixedly installed on the surface of the connecting pipe 1, and one end of the connecting pipe 2 is connected to the cylinder, a vacuum pump is fixedly installed inside the mounting plate, and the output end of the vacuum pump is connected to the connecting pipe 1 through a pipeline.

[0011] Preferably, it also includes:

[0012] A cleaning mechanism is provided at the top of the cylinder, the cleaning mechanism comprising a rotating disk provided at the top of the cylinder, the rotating disk being fixedly connected to the positioning rod, a sliding ring being provided on one side of the rotating disk, a protrusion located inside the sliding ring being fixedly mounted on one side of the rotating disk, a nozzle being fixedly mounted on the top of the workbench, a fixed cylinder being fixedly mounted on the outer surface of the workbench, an extrusion rod 1 located inside the fixed cylinder being fixedly mounted on one side of the sliding ring, a connecting tube 3 being fixedly mounted on the outer surface of the fixed cylinder, and one end of the connecting tube 3 being connected to the nozzle;

[0013] The supporting assembly is arranged at the top end of the cylinder.

[0014] Preferably, the support assembly includes a limiting rod fixedly connected to the top end of the cylinder, a limiting slider is slidably sleeved on the surface of the limiting rod, and the limiting slider is fixedly connected to the sliding ring.

[0015] Preferably, it also includes:

[0016] A guide mechanism is provided inside the top of the workbench, the guide mechanism comprising a positioning plate slidably connected to the inside of the top of the workbench, the positioning plate and the workbench being elastically connected via a second elastic member, a second extrusion rod being slidably connected to the inside of the workbench, a connecting rod being fixedly mounted on one side of the second extrusion rod, and one end of the connecting rod being fixedly connected to the top of the sliding ring;

[0017] The collecting component is arranged on the outer surface of the workbench.

[0018] Preferably, the collecting assembly comprises a slide rail fixedly connected to the surface of the workbench, and the surface of the slide rail is slidably connected to a collecting trough.

[0019] Preferably, it also includes:

[0020] The limiting component is arranged inside the workbench. The limiting component includes a slide groove opened inside the workbench. A guide block is slidably connected inside the slide groove, and the top end of the guide block is fixedly connected to the bottom end of the second extrusion rod.

[0021] Preferably, the surface of the sealing ring fits against the inner wall of the cylinder, and the contact surface between the positioning rod and the prism is designed as rubber. A limiting ring is provided inside the cylinder to limit the sealing ring.

[0022] Preferably, the two opposite sides of the positioning plate and the extrusion rod are both designed with inclined surfaces, and the two inclined surfaces are designed to be parallel.

[0023] A laser trimming method for processing a mobile phone periscope prism, the trimming method is as follows:

[0024] S1: First, the operator coats the prism with HR film on both sides, then places the prism on the workbench and on top of the suction cup. The operator then drives the vacuum pump to extract the air from the connecting tube 1, the suction cup, and the connecting tube 2. The suction cup then adsorbs and fixes the prism.

[0025] S2: During the adsorption process, the air inside the cylinder is also extracted. As the cylinder is under negative pressure, the sealing ring pushes the mounting block to move. The mounting block drives the hinged rod to rotate. The hinged rod drives the two positioning rods to move toward the surface of the prism and pushes the prism toward the middle of the workbench. When the two positioning rods contact both sides of the prism at the same time, the positioning is completed. Then, the trimming assembly can be driven to remove the excess size of the HR film to obtain the HR film size that meets the requirements of the drawing.

[0026] S3: After the trimming is completed, the positioning rod is driven away from the surface of the prism. When the positioning rod rotates, the rotating disk and the protrusion rotate in conjunction. The protrusion pushes the sliding ring to move, and the sliding ring drives the extrusion rod 1 to move inside the fixed cylinder. During the movement, the air inside the fixed cylinder is squeezed, and then the air is discharged from the inside of the nozzle through the connecting pipe 3. The exhausted gas is blown onto the surface of the prism, and then the cut scraps are blown away from the surface of the prism;

[0027] S4: When the sliding ring drives the extrusion rod 1 to move, it will also drive the connecting rod to move. The connecting rod will drive the extrusion rod 2 away from the bottom end of the positioning plate. Then the stretched elastic part 2 will pull the positioning plate to shrink into the inside of the workbench, and the cleaning mechanism will blow the scraps into the inside of the workbench. The positioning plate will guide the scraps into the inside of the workbench, and the positioning plate with a sloped top will guide the scraps into the inside of the collection tank.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The present invention drives the vacuum pump to enable the suction cup to adsorb and fix the prism image. During the adsorption process, the air inside the cylinder will also be extracted. As the air inside the cylinder decreases, the sealing ring and the mounting block will move. The mounting block will drive the hinged rod to rotate, and the hinged rod will drive the two positioning rods to move toward the surface of the prism and push the prism to move toward the middle of the workbench. The two positioning rods will contact both sides of the prism at the same time to complete the positioning. Finally, the two positioning rods will be driven by the adsorption assembly to position the prism and move it to the middle of the top of the workbench, thereby achieving simultaneous fixation of the bottom and both sides, effectively avoiding the problems of uneven cutting and dimensional error caused by prism position deviation, greatly ensuring the quality of cutting, and improving the yield rate and overall quality of product processing;

[0030] (2) In the process of the positioning rod moving away from the prism, the present invention will link the rotating disk and the protrusion to rotate, the protrusion will push the sliding ring to move, and the sliding ring will drive the extrusion rod 1 to move inside the fixed cylinder. During the movement, the air inside the fixed cylinder will be squeezed, and then the air will pass through the connecting pipe 3 and be discharged from the inside of the nozzle. The exhausted gas will blow to the surface of the prism, and then blow the cut scraps away from the surface of the prism. Finally, the positioning rod is linked to the rotating disk to make the nozzle squeeze the air inside the extrusion rod 1, so that the ejected airflow can quickly blow the scraps away from the surface of the prism, preventing them from affecting subsequent processing steps, and effectively avoiding the scraps from causing damage to the prism;

[0031] (3) The present invention drives the connecting rod to move through the sliding ring, and the connecting rod drives the extrusion rod 2 away from the bottom end of the positioning plate, and then the stretched elastic member 2 pulls the positioning plate to retract into the interior of the workbench, and the cleaning mechanism blows the scraps into the interior of the workbench, and the positioning plate guides the scraps entering the interior of the workbench into the interior of the collecting tank. Finally, the sliding ring links the connecting rod to retract the positioning plate into the interior of the workbench, and the scraps are collected in time to avoid their accumulation in the processing area and affecting subsequent operations. When the positioning rod moves toward the surface of the prism, it cooperates with the positioning rod to ensure that the prism can be accurately positioned at the specified position on the workbench during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a schematic diagram of a cross-sectional workbench of the present invention;

[0034] Figure 3 This is a schematic diagram showing the positioning mechanism of the present invention;

[0035] Figure 4 This is a schematic diagram showing the adsorption component of the present invention;

[0036] Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram;

[0037] Figure 6 A schematic diagram showing the cleaning mechanism of the present invention;

[0038] Figure 7 This is a schematic diagram of a cross-sectional view of a fixed cylinder of the present invention;

[0039] Figure 8 This is a schematic diagram showing the position limiting assembly of the present invention;

[0040] Figure 9 Schematic diagram showing the guiding mechanism of the present invention.

[0041] In the figure: 1. Main body; 2. Mounting plate; 3. Trimming assembly; 4. Positioning mechanism; 401. Workbench; 402. Positioning rod; 403. Cylinder; 404. Sealing ring; 405. Elastic member 1; 406. Mounting block; 407. Articulated rod; 5. Adsorption assembly; 501. Vacuum pump; 502. Suction cup; 503. Connecting pipe 1; 504. Connecting pipe 2; 6. Cleaning mechanism; 601. Rotating plate; 602. Sliding ring; 60 3. Bump; 604. Nozzle; 605. Fixed cylinder; 606. Extrusion rod 1; 607. Connecting pipe 3; 7. Guide mechanism; 701. Positioning plate; 702. Elastic member 2; 703. Connecting rod; 704. Extrusion rod 2; 8. Collecting assembly; 801. Slide rail; 802. Collecting trough; 9. Support assembly; 901. Limit rod; 902. Limit slider; 10. Limit assembly; 1001. Slide groove; 1002. Guide block. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] like Figures 1 to 9 As shown, the present invention provides a laser trimming device for processing a mobile phone periscope prism, comprising a main body 1, a mounting plate 2 and a trimming assembly 3, and further comprising:

[0044] A positioning mechanism 4 is provided on the top of the mounting plate 2;

[0045] The positioning mechanism 4 includes a workbench 401 fixedly connected to the top of the mounting plate 2, with positioning rods 402 rotatably connected to both sides of the outer surface of the workbench 401, a cylinder 403 fixedly installed at the bottom end of the surface of the workbench 401, a sealing ring 404 slidably connected to the interior of the cylinder 403, the sealing ring 404 and the cylinder 403 being elastically connected via an elastic member 405, a mounting block 406 fixedly installed at the top of the sealing ring 404, and the mounting block 406 and the positioning rod 402 being hinged via a hinge rod 407;

[0046] The adsorption component 5 is disposed inside the workbench 401 .

[0047] The above solution is adopted: the operator coats HR film on both sides of the prism, and then places the coated prism on the top of the workbench 401, and then drives the adsorption component 5 to adsorb and fix it. During the adsorption process, the air inside the cylinder 403 will also be extracted. As the air inside the cylinder 403 decreases, the sealing ring 404 will be pulled up. When the sealing ring 404 moves up, the elastic member 405 will be stretched. The resilience of the elastic member 405 is used to pull the sealing ring 404 to return to its original position. Then the upward-moving sealing ring 404 will push the mounting block 406 to move. Since the mounting block 406 is connected to the positioning rod 402, the sealing ring 404 will move upward. The hinged mounting block 406 is hinged by the hinged rod 407, and the hinged rod 407 drives the hinged rod 407 to rotate. The hinged rod 407 drives the two positioning rods 402 to move toward the surface of the prism and pushes the prism toward the middle of the workbench 401. The two positioning rods 402 simultaneously contact the two sides of the prism to complete the positioning. Then, the trimming assembly 3 can be driven to remove the excess size of the HR film to obtain the HR film size that meets the requirements of the drawing. The roughness of the removed position after processing is ≤0.05um, the HR film is removed cleanly, and the glass surface is not damaged. The laser processing dimensional accuracy is ±0.05mm, and CPK ≥1.33.

[0048] The trimming assembly 3 is prior art and will not be described in detail.

[0049] like Figure 4 As shown, the adsorption component 5 includes a suction cup 502 fixedly connected to the inside of the workbench 401, and a connecting pipe 1 503 located inside the bottom end of the workbench 401 is fixedly installed on the surface of the suction cup 502, and a connecting pipe 2 504 is fixedly installed on the surface of the connecting pipe 1 503, and one end of the connecting pipe 2 504 is connected to the cylinder 403, and a vacuum pump 501 is fixedly installed inside the mounting plate 2, and the output end of the vacuum pump 501 is connected to the connecting pipe 1 503 through a pipeline.

[0050] The above solution is adopted: through the design of the adsorption component 5, after the prism is placed on the top of the workbench 401 and the suction cup 502, the vacuum pump 501 can be driven to extract the air inside the connecting tube 1 503, the suction cup 502 and the connecting tube 2 504, and then the suction cup 502 can adsorb and fix the prism image. During the fixing process, the prism will squeeze the rubber pad on the top of the workbench 401, thereby deforming it, thereby improving the fixing effect, and when the prism is pushed, its fixing effect will not be affected. Then the connecting tube 2 504 will extract the air inside the cylinder 403, thereby causing the sealing ring 404 to move upward, driving the hinged rod 407 to enable the positioning rod 402 to position the prism.

[0051] like Figure 6 and Figure 7 As shown, it also includes:

[0052] The cleaning mechanism 6 is provided at the top of the cylinder 403. The cleaning mechanism 6 includes a rotating disk 601 provided at the top of the cylinder 403, and the rotating disk 601 is fixedly connected to the positioning rod 402. A sliding ring 602 is provided on one side of the rotating disk 601. A bump 603 located inside the sliding ring 602 is fixedly mounted on one side of the rotating disk 601. A nozzle 604 is fixedly mounted on the top of the workbench 401. A fixed cylinder 605 is fixedly mounted on the outer surface of the workbench 401. An extrusion rod 1 606 located inside the fixed cylinder 605 is fixedly mounted on one side of the sliding ring 602. A connecting pipe 3 607 is fixedly mounted on the outer surface of the fixed cylinder 605, and one end of the connecting pipe 3 607 is connected to the nozzle 604.

[0053] The supporting assembly 9 is disposed at the top of the cylinder 403 .

[0054] The above scheme is adopted: through the design of the cleaning mechanism 6, after the edge cutting is completed, the positioning rod 402 can be driven away from the surface of the prism, and when the positioning rod 402 rotates, the rotating disk 601 will be linked to rotate, and the rotating disk 601 will drive the protrusion 603 to rotate inside the sliding ring 602, and then the protrusion 603 will push the sliding ring 602 to move. During the movement of the sliding ring 602, the support assembly 9 can limit it, and then the sliding ring 602 will drive the extrusion rod 1 606 to move inside the fixed cylinder 605. During the movement, the air inside the fixed cylinder 605 will be squeezed, and then the air will pass through the connecting tube 3 607 and be discharged from the inside of the nozzle 604. The exhausted gas will blow toward the surface of the prism, and then blow the cut scraps away from the surface of the prism.

[0055] like Figure 6 As shown, the support assembly 9 includes a limiting rod 901 fixedly connected to the top of the cylinder 403 , a limiting slider 902 is slidably sleeved on the surface of the limiting rod 901 , and the limiting slider 902 is fixedly connected to the sliding ring 602 .

[0056] Adopting the above solution: through the design of the support component 9, when the sliding ring 602 moves, it will drive the limiting slider 902 to slide on the surface of the limiting rod 901, and during the sliding process, the sliding ring 602 can be supported and limited to ensure the stability of the movement of the sliding ring 602.

[0057] like Figure 8 and Figure 9 As shown, it also includes:

[0058] The guide mechanism 7 is provided inside the top of the workbench 401. The guide mechanism 7 includes a positioning plate 701 slidably connected to the inside of the top of the workbench 401. The positioning plate 701 and the workbench 401 are elastically connected via a second elastic member 702. A second extrusion rod 704 is slidably connected to the inside of the workbench 401. A connecting rod 703 is fixedly mounted on one side of the second extrusion rod 704, and one end of the connecting rod 703 is fixedly connected to the top of the sliding ring 602.

[0059] The collecting component 8 is arranged on the outer surface of the workbench 401 .

[0060] With the above solution, through the design of the guide mechanism 7, when the sliding ring 602 drives the extrusion rod 1 606 to move, it also drives the connecting rod 703 to move, and the connecting rod 703 drives the extrusion rod 2 704 away from the bottom end of the positioning plate 701. Then, the stretched elastic member 2 702 pulls the positioning plate 701 to retract into the interior of the workbench 401, and the cleaning mechanism 6 blows the scraps into the interior of the workbench 401, and the positioning plate 701 guides the scraps entering the interior of the workbench 401 into the interior of the collecting assembly 8.

[0061] And while the positioning rod 402 moves toward the surface of the prism, the sliding ring 602 will push the connecting rod 703 and the squeezing rod 2 704 to move, and the squeezing rod 2 704 will contact the surface of the positioning plate 701 and lift the positioning plate 701 upward. The moving positioning plate 701 will cooperate with the positioning rod 402 and can also squeeze the prism to move toward the middle of the workbench 401 to ensure the accuracy of positioning.

[0062] like Figure 9 As shown, the collecting assembly 8 includes a slide rail 801 fixedly connected to the surface of the workbench 401 , and a collecting trough 802 is slidably connected to the surface of the slide rail 801 .

[0063] Adopt the above scheme: through the design of the collecting component 8, after the positioning plate 701 is retracted into the inside of the workbench 401, the cleaning mechanism 6 will blow the scraps into the inside of the workbench 401. Since the top of the positioning plate 701 is designed as a slope, the positioning plate 701 will guide the scraps into the collection trough 802, and the collection trough 802 can collect the waste.

[0064] like Figure 8As shown, it also includes:

[0065] The limiting component 10 is arranged inside the workbench 401. The limiting component 10 includes a slide groove 1001 opened inside the workbench 401. The slide groove 1001 is internally slidably connected to a guide block 1002, and the top end of the guide block 1002 is fixedly connected to the bottom end of the extrusion rod 704.

[0066] The above solution is adopted: through the design of the limiting component 10, when the connecting rod 703 drives the extrusion rod 2 704 to move, it will drive the guide block 1002 to slide inside the slide groove 1001, and during the sliding process, the extrusion rod 2 704 can be limited to prevent the position of the extrusion rod 2 704 from shifting when it moves.

[0067] like Figure 3 、 Figure 4 and Figure 9 As shown, the surface of the sealing ring 404 fits with the inner wall of the cylinder 403, and the contact surface between the positioning rod 402 and the prism is designed with rubber. A limiting ring is set inside the cylinder 403, and can limit the sealing ring 404. The opposite side of the positioning plate 701 and the extrusion rod 704 are both inclined, and the two inclined surfaces are parallel.

[0068] The above scheme is adopted: through the design of the positioning rod 402, the cylinder 403 and the sealing ring 404, since the contact surface between the positioning rod 402 and the prism is designed to be rubber, the prism can be protected while being positioned, and the surface of the sealing ring 404 is in contact with the inner wall of the cylinder 403, and a limiting ring is provided, so that when the connecting tube 2 504 extracts the air inside the cylinder 403, the sealing ring 404 can move stably, and the limiting ring can limit the sealing ring 404. Through the design of the positioning plate 701 and the extrusion rod 2 704, since the opposite sides of the positioning plate 701 and the extrusion rod 2 704 are both inclined, the resistance between the positioning plate 701 and the extrusion rod 2 704 can be reduced, ensuring that the extrusion rod 2 704 squeezes and pushes the positioning plate 701 upward.

[0069] like Figures 1 to 9 As shown, the trimming method is as follows:

[0070] S1: First, the operator coats the prism with HR film on both sides, then places the prism on the workbench 401 and the top of the suction cup 502. Then, the vacuum pump 501 can be driven to extract the air inside the connecting tube 1 503, the suction cup 502 and the connecting tube 2 504. Then, the suction cup 502 can adsorb and fix the prism.

[0071] S2: During the adsorption process, the air inside the cylinder 403 is also extracted. As the inside of the cylinder 403 becomes negatively pressurized, the sealing ring 404 pushes the mounting block 406 to move. The mounting block 406 drives the hinged rod 407 to rotate. The hinged rod 407 drives the two positioning rods 402 to move toward the surface of the prism and pushes the prism toward the middle of the workbench 401. The two positioning rods 402 simultaneously contact both sides of the prism to complete the positioning. Then, the trimming assembly 3 can be driven to remove the excess size of the HR film to obtain the HR film size that meets the requirements of the drawing.

[0072] S3: After the trimming is completed, the positioning rod 402 is driven away from the surface of the prism. When the positioning rod 402 rotates, the rotating disk 601 and the protrusion 603 are rotated, and the protrusion 603 pushes the sliding ring 602 to move. The sliding ring 602 drives the extrusion rod 1 606 to move inside the fixed cylinder 605. During the movement, the air inside the fixed cylinder 605 is squeezed, and then the air is discharged from the inside of the nozzle 604 through the connecting pipe 3 607. The discharged gas is blown toward the surface of the prism, and then the cut scraps are blown away from the surface of the prism;

[0073] S4: When the sliding ring 602 drives the extrusion rod 1 606 to move, it will also drive the connecting rod 703 to move. The connecting rod 703 will drive the extrusion rod 2 704 away from the bottom end of the positioning plate 701. Then the stretched elastic member 2 702 will pull the positioning plate 701 to shrink into the inside of the workbench 401, and the cleaning mechanism 6 will blow the scraps into the inside of the workbench 401. The positioning plate 701 with a sloped top will guide the scraps into the inside of the collection tank 802.

[0074] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0075] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A laser trimming device for processing a mobile phone periscope prism, comprising a main body (1), a mounting plate (2) and a trimming assembly (3), characterized in that: Also includes: A positioning mechanism (4) is provided on the top of the mounting plate (2); The positioning mechanism (4) comprises a workbench (401) fixedly connected to the top of the mounting plate (2), positioning rods (402) are rotatably connected to both sides of the outer surface of the workbench (401), a cylinder (403) is fixedly installed on the bottom end of the surface of the workbench (401), a sealing ring (404) is slidably connected to the inside of the cylinder (403), the sealing ring (404) and the cylinder (403) are elastically connected via an elastic member (405), a mounting block (406) is fixedly installed on the top of the sealing ring (404), and the mounting block (406) and the positioning rod (402) are hinged via a hinge rod (407); The adsorption component (5) is arranged inside the workbench (401).

2. The laser trimming device for processing a mobile phone periscope prism according to claim 1, characterized in that: The adsorption assembly (5) includes a suction cup (502) fixedly connected to the inside of the workbench (401); a connecting pipe 1 (503) located inside the bottom end of the workbench (401) is fixedly installed on the surface of the suction cup (502); a connecting pipe 2 (504) is fixedly installed on the surface of the connecting pipe 1 (503), and one end of the connecting pipe 2 (504) is connected to the cylinder (403); a vacuum pump (501) is fixedly installed inside the mounting plate (2), and the output end of the vacuum pump (501) is connected to the connecting pipe 1 (503) through a pipeline.

3. The laser trimming device for processing a mobile phone periscope prism according to claim 1, characterized in that: Also included are: A cleaning mechanism (6) is provided at the top of the cylinder (403), the cleaning mechanism (6) comprising a rotating disk (601) provided at the top of the cylinder (403), the rotating disk (601) being fixedly connected to the positioning rod (402), a sliding ring (602) being provided on one side of the rotating disk (601), a convex block (603) located inside the sliding ring (602) being fixedly mounted on one side of the rotating disk (601), a nozzle (604) being fixedly mounted on the top of the workbench (401), a fixed cylinder (605) being fixedly mounted on the outer surface of the workbench (401), an extrusion rod (606) located inside the fixed cylinder (605) being fixedly mounted on one side of the sliding ring (602), a connecting pipe (607) being fixedly mounted on the outer surface of the fixed cylinder (605), and one end of the connecting pipe (607) being connected to the nozzle (604); The supporting assembly (9) is arranged at the top end of the cylinder (403).

4. The laser trimming device for processing a mobile phone periscope prism according to claim 3, characterized in that: The support assembly (9) includes a limiting rod (901) fixedly connected to the top end of the cylinder (403), a limiting slider (902) is slidably sleeved on the surface of the limiting rod (901), and the limiting slider (902) is fixedly connected to the sliding ring (602).

5. The laser trimming device for processing a mobile phone periscope prism according to claim 1, characterized in that: Also includes: A guide mechanism (7) is arranged inside the top of the workbench (401), the guide mechanism (7) includes a positioning plate (701) slidably connected to the inside of the top of the workbench (401), the positioning plate (701) and the workbench (401) are elastically connected via a second elastic member (702), the inside of the workbench (401) is slidably connected to a second extrusion rod (704), a connecting rod (703) is fixedly installed on one side of the second extrusion rod (704), and one end of the connecting rod (703) is fixedly connected to the top of the sliding ring (602); The collecting assembly (8) is arranged on the outer surface of the working table (401).

6. The laser trimming device for processing a mobile phone periscope prism according to claim 5, characterized in that: The collecting assembly (8) comprises a slide rail (801) fixedly connected to the surface of the workbench (401), and a collecting trough (802) is slidably connected to the surface of the slide rail (801).

7. The laser trimming device for processing a mobile phone periscope prism according to claim 1, characterized in that: Also includes: A limiting assembly (10) is arranged inside the workbench (401), and the limiting assembly (10) includes a slide groove (1001) opened inside the workbench (401), and the interior of the slide groove (1001) is slidably connected to a guide block (1002), and the top end of the guide block (1002) is fixedly connected to the bottom end of the second extrusion rod (704).

8. The laser trimming device for processing a mobile phone periscope prism according to claim 1, characterized in that: The surface of the sealing ring (404) is fitted with the inner wall of the cylinder (403), and the contact surface between the positioning rod (402) and the prism is designed as rubber. A limiting ring is provided inside the cylinder (403) and can limit the sealing ring (404).

9. The laser trimming device for processing a mobile phone periscope prism according to claim 5, characterized in that: The opposite side of the positioning plate (701) and the second extrusion rod (704) are both designed with inclined surfaces, and the two inclined surfaces are designed to be parallel.

10. A laser trimming method for processing a mobile phone periscope prism, using the laser trimming device for processing a mobile phone periscope prism according to any one of claims 1 to 9, characterized in that: The trimming method is as follows: S1: First, the operator coats the prism with HR film on both sides, then places the prism on the workbench (401) and the top of the suction cup (502), and then drives the vacuum pump (501) to extract the air inside the connecting tube 1 (503), the suction cup (502) and the connecting tube 2 (504), and then the suction cup (502) can adsorb and fix the prism; S2: During the adsorption process, the air inside the cylinder (403) is also extracted. As the inside of the cylinder (403) is under negative pressure, the sealing ring (404) pushes the mounting block (406) to move. The mounting block (406) drives the hinged rod (407) to rotate. The hinged rod (407) drives the two positioning rods (402) to move toward the surface of the prism and pushes the prism toward the middle of the workbench (401). The two positioning rods (402) simultaneously contact the two sides of the prism to complete the positioning. Then, the trimming assembly (3) can be driven to remove the excess size of the HR film to obtain the HR film size that meets the requirements of the drawing. S3: After the trimming is completed, the positioning rod (402) is driven away from the surface of the prism. When the positioning rod (402) rotates, the rotating disk (601) and the protrusion (603) are rotated, and the protrusion (603) pushes the sliding ring (602) to move. The sliding ring (602) drives the extrusion rod (606) to move inside the fixed cylinder (605). During the movement, the air inside the fixed cylinder (605) is squeezed, and then the air is discharged from the inside of the nozzle (604) through the connecting pipe (607). The discharged gas is blown toward the surface of the prism, and then the cut scraps are blown away from the surface of the prism; S4: When the sliding ring (602) drives the extrusion rod 1 (606) to move, it will also drive the connecting rod (703) to move, and the connecting rod (703) will drive the extrusion rod 2 (704) away from the bottom end of the positioning plate (701), and then the stretched elastic member 2 (702) will pull the positioning plate (701) to shrink into the inside of the workbench (401), and the cleaning mechanism (6) will blow the scraps into the inside of the workbench (401), and the positioning plate (701) with a beveled top will guide the scraps into the inside of the collection tank (802).

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