Laser drilling device for PCB machining

By employing a closed design and gas purification structure, the problem of harmful gas diffusion in laser drilling equipment has been solved, achieving effective absorption and purification of harmful gases and improving production safety and efficiency.

CN120901531AInactive Publication Date: 2025-11-07SHENZHEN JIRUIDA CIRCUIT TECH CO LTD
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Patent Information

Application Number
CN202511175454.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-21
Publication Date
2025-11-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing laser drilling devices suffer from open operating interfaces and poorly designed exhaust systems, making it difficult to completely prevent harmful gases from spreading outwards, thus affecting air quality and equipment operation.

Method used

A closed-loop laser drilling device was designed, which uses a collection hood, air pipe and filter element structure to collect and purify harmful gases. Combined with feeding, unloading and sealing mechanisms, it can achieve effective absorption and emission of harmful gases.

Benefits of technology

It effectively absorbs and purifies harmful gases, preventing them from spreading outwards, thus improving the safety of the working environment, the operational stability of the equipment, and enhancing production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of laser drilling, in particular to a laser drilling device for PCB machining, which comprises a rack, a box body, a longitudinal electric guide rail, a transverse electric guide rail, a guide rod, a laser drilling device and the like, the top of the rack is connected with the box body, the longitudinal electric guide rail is mounted in the box body, and the transverse electric guide rail is mounted on a sliding block of the longitudinal electric guide rail; a guide rod used for guiding the transverse electric guide rail is connected into the box body, the guide rod is in sliding connection with the transverse electric guide rail, and a laser drilling device is installed on a sliding block of the transverse electric guide rail. A PCB can be drilled through a laser drilling device, harmful gas enters a gathering cover through gas holes, then enters a gas pipe and is discharged through the gas pipe, a filter element can purify the harmful gas, the harmful gas is prevented from polluting the surrounding environment, the PCB is placed on a placing plate, the harmful gas can be sucked away to the maximum extent, and the PCB is prevented from being damaged. And harmful gas is prevented from diffusing outwards.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laser drilling, in particular to a laser drilling device for PCB processing. BACKGROUND

[0002] In the PCB (printed circuit board) manufacturing industry, laser drilling technology has become a key process means for high-precision micro-hole processing. The technology realizes rapid and efficient processing of blind holes, buried holes and through holes and other complex structures by irradiating the material surface with a high-energy-density laser beam. With the development of electronic products towards lightness, thinness and integration, the requirement for PCB layout density is continuously improved, so that the application of laser drilling is increasingly widespread.

[0003] In actual production processes, a large amount of heat energy is generated when laser interacts with the PCB, which causes the local melting and even vaporization of the PCB, and inevitably releases volatile organic compounds, smoke dust and other harmful gases. These harmful gases not only pose a threat to human health, but also may affect the air quality in the workshop and the normal operation of the equipment itself.

[0004] In order to solve the above problems, an exhaust system or a smoke purification device is generally configured around the laser drilling device to reduce the degree of pollution. However, the current laser drilling device is an open operation interface, and the laser drilling device is completely exposed to the outside world. Moreover, due to the design limitations of the existing exhaust system, such as unreasonable air inlet position, uneven air flow organization and other factors, it is still difficult to completely prevent the phenomenon of harmful gas diffusion from the processing area to the outside. SUMMARY

[0005] Therefore, the application provides a laser drilling device for PCB processing, which can overcome the shortcomings of the current laser drilling device, which is an open operation interface, and the laser drilling device is completely exposed to the outside world. Moreover, due to the design limitations of the existing exhaust system, such as unreasonable air inlet position, uneven air flow organization and other factors, it is still difficult to completely prevent the phenomenon of harmful gas diffusion from the processing area to the outside.

[0006] The technical scheme of the present application is: a laser drilling device for PCB processing, comprising a rack, a box, a longitudinal electric guide rail, a transverse electric guide rail, a guide rod, a laser drilling device, a mounting plate, a placing plate, a gathering cover, an air pipe, a filter element, a feeding mechanism, a discharging mechanism and a plugging mechanism, the top of the rack is connected with the box, the longitudinal electric guide rail is installed in the box, the sliding block of the longitudinal electric guide rail is installed with the transverse electric guide rail, the guide rod is connected in the box for guiding the transverse electric guide rail, the guide rod and the transverse electric guide rail are slidingly connected, the sliding block of the transverse electric guide rail is installed with the laser drilling device, the front and rear sides of the box are connected with the mounting plate, the mounting plates are connected with the placing plate between them, the placing plate is uniformly and intervalled with air holes, the bottom of the placing plate is connected with the gathering cover, the bottom of the gathering cover is communicated with the air pipe, the air pipe penetrates through the box, the air pipe is connected with the filter element inside, the right side of the box is opened with a discharge port, the feeding mechanism is used for conveying the PCB to the placing plate, the discharging mechanism is used for discharging the completed PCB from the box, and the plugging mechanism is used for plugging the discharge port.

[0007] In one embodiment, the feeding mechanism comprises a bearing table, a limiting frame, a guide frame, a screw rod motor and a pushing plate, the top of the rack is connected with the bearing table for bearing the PCB, the bearing table is connected with the box, the box is connected with the limiting frame for limiting the PCB, the box is connected with the guide frame, the screw rod motor is installed on the box, the screw rod of the screw rod motor is rotationally connected with the guide frame, the pushing plate is slidingly connected on the guide frame for pushing the PCB to the placing plate, the screw rod of the screw rod motor is connected with the pushing plate through threads, the pushing plate slidingly penetrates through the box, and the right side of the pushing plate is opened with a limiting slot.

[0008] In one embodiment, the discharging mechanism comprises a sliding rail, a sliding plate, a first spring, a sliding frame, a clamping plate, a second spring, a contact block, a contact plate, a connecting block, a pull rope, a wire sleeve and a wire wheel, the top of the mounting plate is connected with the sliding rail, the sliding rail is slidingly connected with the sliding plate, the first spring is connected between the sliding plate and the sliding rail, the sliding frame is slidingly connected on the sliding plate, the clamping plate is connected on the sliding frame, the second spring is connected between the sliding plate and the clamping plate, the contact block is connected on the sliding frame, the contact plate is connected on the mounting plate, the connecting block is connected on the left and right sides of the pushing plate, the pull rope is connected on the connecting block, the wire sleeve is connected on the left and right sides of the box for guiding the pull rope, the wire wheel is rotationally connected on the right and left sides of the box inside for guiding the pull rope, the pull rope penetrates through the wire sleeve and winds around the wire wheel, the pull rope is connected with the sliding plate, the clamping plate is used for clamping the completed PCB, the pushing plate pulls the sliding plate to move right through the pull rope, the sliding plate drives the clamping plate to move right, the clamping plate drives the completed PCB to move right, and the completed PCB is removed from the box through the discharge port.

[0009] In one of the embodiments, the sealing mechanism comprises an electric push rod and a sealing plate, the electric push rod is installed on the top of the frame, and the sealing plate for sealing the discharge port is connected to the telescopic rod of the electric push rod.

[0010] In one of the embodiments, the discharge mechanism is further included, the discharge mechanism comprises a support plate, a first conveyor and a second conveyor, the support plate is connected to the top of the frame, the support plate is connected to the box body, the first conveyor is installed on the top of the support plate, the second conveyor is installed on the first conveyor, the completed PCB board is removed through the discharge port, the completed PCB board is moved between the first conveyor and the second conveyor, and the first conveyor and the second conveyor convey the completed PCB board to the right.

[0011] In one of the embodiments, the collecting mechanism is further included, the collecting mechanism comprises a limiting frame, a collecting box and a box door, the limiting frame is connected to the top of the frame, the collecting box is placed in the limiting frame, and the box door is hinged to the box body, the box door is opened, and the collecting box can be taken out of the box body.

[0012] In one of the embodiments, the air blowing mechanism is further included, the air blowing mechanism comprises a connecting plate, a spray head and a hard pipe, the connecting plate is connected to the top of the longitudinal electric guide rail, the spray head is connected to the connecting plate, the hard pipe is connected to the spray head, and the hard pipe penetrates through the box body.

[0013] In one of the embodiments, the transparent plate is further included, and the transparent plate is connected to the left side of the box body.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1、The laser drilling device can drill the PCB board, the harmful gas enters the collecting cover through the air hole, then the harmful gas enters the air pipe and is discharged through the air pipe, the filter element can purify the harmful gas, the harmful gas is prevented from polluting the surrounding environment, the PCB board is placed on the placing plate, the harmful gas can be removed to the maximum extent, and the harmful gas is prevented from diffusing outward.

[0016] 2、When the clamp plate drives the completed PCB board to move to the right, the excess material on the PCB board falls into the collecting box for collection, the air can be blown to the completed PCB board through the spray head, the excess material on the completed PCB board can be better removed, and the excess material is prevented from remaining on the PCB board. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the present application.

[0018] Figure 2 It is a sectional view of the box body of the present application.

[0019] Figure 3 It is a perspective view of the gathering cover, air pipe and filter element of the present application.

[0020] Figure 4 It is a perspective view of the discharge port of the present application.

[0021] Figure 5 It is a perspective view of the feeding mechanism and discharging mechanism of the present application.

[0022] Figure 6 It is a perspective view of the feeding mechanism of the present application.

[0023] Figure 7 It is a perspective view of the pushing plate and limiting groove of the present application.

[0024] Figure 8 It is a perspective view of the discharging mechanism of the present application.

[0025] Figure 9 It is a sectional view of the sliding rail of the present application.

[0026] Figure 10 It is a perspective view of the contact block and contact plate of the present application.

[0027] Figure 11 It is a perspective view of the plugging mechanism of the present application.

[0028] Figure 12 It is a perspective view of the discharging mechanism of the present application.

[0029] Figure 13 It is a perspective view of the collecting mechanism and blowing mechanism of the present application.

[0030] Marked in the figure: 1, frame, 2, box body, 3, longitudinal electric guide rail, 4, transverse electric guide rail, 5, guide rod, 6, laser drilling device, 7, mounting plate, 8, placing plate, 9, air hole, 10, gathering cover, 11, air pipe, 12, filter element, 13, discharge port, 141, bearing table, 142, limiting frame, 143, guide frame, 144, screw motor, 145, pushing plate, 146, limiting groove, 151, sliding rail, 152, sliding plate, 153, first spring, 154, sliding frame, 155, clamping plate, 156, second spring, 157, contact block, 158, contact plate, 159, connecting block, 1510, pull rope, 1511, wire sleeve, 1512, wire wheel, 161, electric push rod, 162, plugging plate, 171, support plate, 172, first conveyor, 173, second conveyor, 181, limiting frame, 182, collecting box, 183, box door, 191, connecting plate, 192, spray head, 193, hard pipe, 20, transparent plate. DETAILED DESCRIPTION

[0031] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the specific embodiments and drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of well-known structures and techniques is omitted to avoid unnecessary confusion of the concept of the present application.

[0032] Please refer to Figures 1-11 A laser drilling device for PCB processing, comprising a rack 1, a box body 2, a longitudinal electric guide rail 3, a transverse electric guide rail 4, a guide rod 5, a laser drilling device 6, a mounting plate 7, a placement plate 8, a gathering cover 10, an air pipe 11, a filter element 12, a feeding mechanism, a discharging mechanism and a plugging mechanism, the box body 2 is connected to the top of the rack 1 through bolts, the longitudinal electric guide rail 3 is installed in the middle of the upper part of the box body 2 through bolts, the sliding block of the longitudinal electric guide rail 3 is connected to the transverse electric guide rail 4 through bolts, the guide rod 5 is connected to the left and right sides of the upper part of the box body 2, the guide rod 5 and the transverse electric guide rail 4 are slidingly connected, the transverse electric guide rail 4 is guided by the two guide rods 5, so that the transverse electric guide rail 4 is prevented from tilting, the laser drilling device 6 is installed on the sliding block of the transverse electric guide rail 4 through bolts, the mounting plate 7 is connected to the front and rear sides of the lower part of the box body 2 through bolts, the placement plate 8 is connected between the two mounting plates 7 through bolts, the air holes 9 are uniformly and spaced apart on the placement plate 8, the gathering cover 10 is connected to the bottom of the placement plate 8 through bolts, the gathering cover 10 completely covers the air holes 9, the air pipe 11 is connected to the middle of the bottom of the gathering cover 10, the air pipe 11 penetrates through the front side of the box body 2, the filter element 12 is connected to the front side of the air pipe 11, the discharge port 13 is formed in the right side of the lower part of the box body 2, the feeding mechanism is used for conveying the PCB to the placement plate 8, the discharging mechanism is used for discharging the PCB with drilled holes from the box body 2, and the plugging mechanism is used for plugging the discharge port 13.

[0033] Please refer to Figure 1 、 Figure 5 、 Figure 6 and Figure 7The feeding mechanism comprises a bearing table 141, a limiting frame 142, a guide frame 143, a screw rod motor 144 and a pushing plate 145. The bearing table 141 is bolted to the top left side of the rack 1. The right side of the bearing table 141 is bolted to the left side of the box 2. The limiting frame 142 is bolted to the middle of the left side of the box 2. The guide frame 143 is bolted to the lower left side of the box 2. The screw rod motor 144 is bolted to the lower left side of the box 2. The screw rod of the screw rod motor 144 is rotatably connected to the guide frame 143. The pushing plate 145 is slidably connected to the guide frame 143. The screw rod of the screw rod motor 144 is threadedly connected to the pushing plate 145. The bottom of the pushing plate 145 is in contact with the top of the bearing table 141. The top of the pushing plate 145 is in contact with the bottom of the limiting frame 142. The pushing plate 145 slidably penetrates the left side of the box 2. The right side of the pushing plate 145 is provided with a limiting groove 146.

[0034] Please refer to Figure 5 、 Figure 8 、 Figure 9 and Figure 10 The discharging mechanism comprises slide rails 151, slide plates 152, first springs 153, sliding frames 154, clamping plates 155, second springs 156, contact blocks 157, contact plates 158, connecting blocks 159, pull ropes 1510, wire sleeves 1511 and wire wheels 1512. The slide rails 151 are bolted to the top of the mounting plates 7. The slide plates 152 are slidably connected in the slide rails 151. The first springs 153 are connected between the left sides of the slide plates 152 and the left sides in the slide rails 151. The sliding frames 154 are slidably connected to the lower parts of the slide plates 152. The clamping plates 155 are connected to the sides of the sliding frames 154 close to each other. The sides of the clamping plates 155 close to each other are provided with rubber layers. The rubber layers can avoid damage to the PCB caused by the clamping plates 155. The second springs 156 are sleeved on the left and right parts of the sliding frames 154. The two ends of the second springs 156 are connected to the slide plates 152 and the clamping plates 155 respectively. The contact blocks 157 are bolted to the sides of the sliding frames 154 away from each other. The contact plates 158 are bolted to the sides of the mounting plates 7 close to each other. The left and right sides of the contact plates 158 are inclined surfaces. The contact blocks 157 are in contact with the inclined surfaces on the left sides of the contact plates 158. The connecting blocks 159 are bolted to the front and rear sides of the pushing plate 145. The pull ropes 1510 are connected to the right sides of the connecting blocks 159. The wire sleeves 1511 are connected to the front and rear sides of the left side of the box 2. The wire wheels 1512 are rotatably connected to the front and rear sides of the right side in the box 2. The pull ropes 1510 pass through the wire sleeves 1511 and pass around the wire wheels 1512. The pull ropes 1510 are connected to the right sides of the slide plates 152.

[0035] Please refer to Figure 11The blocking mechanism comprises an electric push rod 161 and a blocking plate 162, the electric push rod 161 is installed on the right side of the top of the rack 1 through bolts, the upper end of the telescopic rod of the electric push rod 161 is connected with the blocking plate 162, and the left side of the blocking plate 162 is in contact with the right side of the box body 2.

[0036] Please refer to Figure 12 Further comprising a discharging mechanism, the discharging mechanism comprises a supporting plate 171, a first conveyor 172 and a second conveyor 173, the front and rear sides of the right side of the top of the rack 1 are both connected with the supporting plate 171 through bolts, the left side of the supporting plate 171 is connected with the right side of the box body 2 through bolts, and the top of the two supporting plates 171 is jointly connected with the first conveyor 172 through bolts, and the upper portion of the first conveyor 172 is connected with the second conveyor 173 through bolts.

[0037] The worker puts a stack of PCB boards into the limiting frame 142, and the PCB boards will fall onto the pushing plate 145. Then the control screw rod motor 144 drives the pushing plate 145 to move leftwards, and the pushing plate 145 will move out of the box 2. Then the pushing plate 145 will be out of contact with the PCB boards in the limiting frame 142, and the PCB boards will fall downwards. The lowermost PCB board in the limiting frame 142 will fall into the limiting groove 146. The bearing table 141 bears the PCB board. Then the control screw rod motor 144 drives the pushing plate 145 to move rightwards, and the pushing plate 145 pushes the PCB board to move rightwards, pushing the PCB board to the placement plate 8. The automatic feeding improves the work efficiency. The vertical electric guide rail 3 can drive the laser drilling machine 6 to move forwards and backwards. The horizontal electric guide rail 4 can drive the laser drilling machine 6 to move leftwards and rightwards. The laser drilling machine 6 can be moved to any position. The laser drilling machine 6 can drill the PCB board. Harmful gas will be generated during the drilling process. The box 2 can block the harmful gas. The blocking plate 162 blocks the discharge port 13, avoiding the leakage of harmful gas from the discharge port 13. The worker can connect the air pipe 11 to the air pump, and the air pump can suck the air. The harmful gas enters the gathering cover 10 through the air hole 9. Then the harmful gas enters the air pipe 11 and is discharged through the air pipe 11. The filter element 12 can purify the harmful gas, avoiding the pollution of the surrounding environment. The PCB board is placed on the placement plate 8, which can maximize the removal of harmful gas and avoid the outward diffusion of harmful gas. After the drilling of the PCB board is completed, the control electric push rod 161 shortens the telescopic rod, driving the blocking plate 162 to move downwards. The blocking plate 162 no longer blocks the discharge port 13. Then the control screw rod motor 144 drives the pushing plate 145 to move leftwards, and the pushing plate 145 drives the connecting block 159 to move leftwards. The connecting block 159 drives the sliding plate 152 to move rightwards through the pull rope 1510. The first spring 153 is stretched. The sliding plate 152 drives the sliding frame 154, the clamping plate 155 and the contact block 157 to move rightwards. The contact block 157 moves along the inclined surface on the left side of the contact plate 158. The two contact blocks 157 will move towards each other. The two clamping plates 155 will also move towards each other. The second spring 156 is stretched. The clamping plate 155 can clamp the drilled PCB board. At this time, the clamping plate 155 is still moving rightwards, so the clamping plate 155 can drive the drilled PCB board to move rightwards. The drilled PCB board is moved out of the box 2 through the discharge port 13. The drilled PCB board will move between the first conveyor 172 and the second conveyor 173. Then the contact block 157 will contact the inclined surface on the right side of the contact plate 158. Under the action of the second spring 156, the two clamping plates 155 will move away from each other. The clamping plate 155 releases the drilled PCB board. The first conveyor 172 and the second conveyor 173 convey the drilled PCB board rightwards, automatically discharging the material and improving the work efficiency. At this time, the pushing plate 145 is still moving leftwards,The pushing plate 145 will move out of the box 2, and then the pushing plate 145 will be out of contact with the PCB in the limiting frame 142, the PCB will fall down, and the lowest PCB in the limiting frame 142 will fall into the limiting groove 146. The screw rod motor 144 drives the pushing plate 145 to move to the right, the pushing plate 145 pushes the PCB to move to the right, and the PCB is pushed to the placing plate 8. The right movement of the pushing plate 145 can drive the connecting block 159 to move to the right, the pull rope 1510 is relaxed, and under the action of the first spring 153, the sliding plate 152 moves to the left, the sliding plate 152 drives the sliding frame 154 and the clamping plate 155 to move to the left and reset.

[0038] Please refer to Figure 13 It also includes a collection mechanism, which includes a limiting frame 181, a collection box 182 and a box door 183. The limiting frame 181 is connected to the top of the rack 1 by bolts, and the collection box 182 is placed in the limiting frame 181. The box door 183 is hinged to the lower right front side of the box 2.

[0039] When the clamping plate 155 drives the completed PCB to move to the right, the completed PCB will move above the collection box 182, and the excess material on the PCB will fall into the collection box 182 for collection and cleaning. The limiting frame 181 can limit the position of the collection box 182 to avoid deviation. The box door 183 can be opened to take out the collection box 182 from the box 2.

[0040] Please refer to Figure 13 It also includes a blowing mechanism, which includes a connecting plate 191, a nozzle 192 and a hard pipe 193. The connecting plate 191 is connected to the top of the longitudinal electric guide rail 3 by bolts, and the nozzles 192 are uniformly and spacedly connected to the right part of the connecting plate 191. The hard pipe 193 is connected to the upper end of the nozzles 192, and penetrates through the front side of the box 2.

[0041] When the clamping plate 155 drives the completed PCB to move to the right, the staff can connect the hard pipe 193 to the air pump to blow air into the hard pipe 193 through the air pump and blow out through the nozzles 192. The nozzles 192 blow air onto the completed PCB to make the excess material on the completed PCB fall off better and avoid remaining on the PCB.

[0042] Please refer to Figure 1 It also includes a transparent plate 20, which is connected to the left upper part of the box 2. Through the transparent plate 20, the inside of the box 2 can be seen to observe the drilling of the PCB.

[0043] The above merely illustrates the embodiments of the present application but should not be taken as limitation. Any equivalent replacement within the principles of the present application should be included in the protection scope of the present application. The contents not described in detail in the present application belong to the prior art known by the skilled in the art.

Claims

1. A laser drilling device for PCB board processing, comprising a frame (1), a housing (2), a longitudinal electric guide rail (3), a transverse electric guide rail (4), a guide rod (5), and a laser drill (6), wherein the housing (2) is connected to the top of the frame (1), the longitudinal electric guide rail (3) is installed inside the housing (2), the transverse electric guide rail (4) is installed on the slider of the longitudinal electric guide rail (3), the guide rod (5) for guiding the transverse electric guide rail (4) is connected inside the housing (2), the guide rod (5) and the transverse electric guide rail (4) are slidably connected, and the laser drill (6) is installed on the slider of the transverse electric guide rail (4), characterized in that: The box (2) is provided with mounting plates (7), a placing plate (8), a gathering cover (10), an air pipe (11), a filter element (12), a feeding mechanism, a discharging mechanism and a sealing mechanism. The box (2) is connected with mounting plates (7) on the front and back sides. The two mounting plates (7) are connected with the placing plate (8). The placing plate (8) is uniformly and spacedly provided with air holes (9). The placing plate (8) is connected with the gathering cover (10) at the bottom. The gathering cover (10) is connected with the air pipe (11) at the bottom. The air pipe (11) penetrates through the box (2). The air pipe (11) is connected with the filter element (12). The box (2) is provided with a discharge port (13) on the right side. The feeding mechanism is used for conveying the PCB board to the placing plate (8). The discharging mechanism is used for discharging the PCB board with drilled holes from the box (2). The sealing mechanism is used for sealing the discharge port (13).

2. The laser drilling device for PCB processing according to claim 1, characterized in that: The feeding mechanism comprises a bearing table (141), a limiting frame (142), a guide frame (143), a lead screw motor (144) and a pushing plate (145). The machine frame (1) is connected with the bearing table (141) for bearing the PCB board. The bearing table (141) is connected with the box (2). The box (2) is connected with the limiting frame (142) for limiting the PCB board. The box (2) is connected with the guide frame (143). The box (2) is installed with the lead screw motor (144). The lead screw of the lead screw motor (144) is rotatably connected with the guide frame (143). The guide frame (143) is slidably connected with the pushing plate (145) for pushing the PCB board to the placing plate (8). The lead screw of the lead screw motor (144) is threadedly connected with the pushing plate (145). The pushing plate (145) slidably penetrates through the box (2). The pushing plate (145) is provided with a limiting groove (146) on the right side.

3. The laser drilling device for PCB processing according to claim 2, characterized in that: The discharging mechanism comprises slide rails (151), slide plates (152), first springs (153), sliding frames (154), clamping plates (155), second springs (156), contact blocks (157), contact plates (158), connecting blocks (159), pull ropes (1510), wire sleeves (1511) and wire wheels (1512). The top of each mounting plate (7) is connected with a slide rail (151). Each slide rail (151) is slidably connected with a slide plate (152). The slide plate (152) and the slide rail (151) are connected with a first spring (153). Each slide plate (152) is slidably connected with a sliding frame (154). Each sliding frame (154) is connected with a clamping plate (155). The slide plate (152) and the clamping plate (155) are connected with a second spring (156). Each sliding frame (154) is connected with a contact block (157). Each mounting plate (7) is connected with a contact plate (158). The front and back of each pushing plate (145) is connected with a connecting block (159). Each connecting block (159) is connected with a pull rope (1510). The front and back of the left side of the box body (2) is connected with a wire sleeve (1511) for guiding the pull rope (1510). The front and back of the right side in the box body (2) is rotatably connected with a wire wheel (1512) for guiding the pull rope (1510). The pull rope (1510) passes through the wire sleeve (1511) and winds around the wire wheel (1512). The pull rope (1510) is connected with the slide plate (152). The clamping plate (155) is used for clamping the completed PCB. The pushing plate (145) pulls the slide plate (152) to move right through the pull rope (1510). The slide plate (152) drives the clamping plate (155) to move right. The clamping plate (155) drives the completed PCB to move right. The completed PCB is moved out of the box body (2) through the discharge port (13).

4. The laser drilling device for PCB processing according to claim 3, characterized in that: The sealing mechanism comprises an electric push rod (161) and a sealing plate (162). The top of the rack (1) is provided with an electric push rod (161). The telescopic rod of the electric push rod (161) is connected with a sealing plate (162) for sealing the discharge port (13).

5. The laser drilling device for PCB processing according to claim 4, characterized in that: The discharging mechanism comprises a supporting plate (171), a first conveyor (172) and a second conveyor (173). The top of the rack (1) is connected with a supporting plate (171). The supporting plate (171) is connected with the box body (2). The top of the supporting plate (171) is provided with a first conveyor (172). The first conveyor (172) is provided with a second conveyor (173). The completed PCB is moved out of the box body (2) through the discharge port (13). The completed PCB is moved between the first conveyor (172) and the second conveyor (173). The first conveyor (172) and the second conveyor (173) convey the completed PCB to the right.

6. The laser drilling device for PCB processing according to claim 1, characterized in that: It also includes a collection mechanism, which includes a limiting frame (181), a collection box (182) and a box door (183), the top of the rack (1) is connected with the limiting frame (181), the limiting frame (181) is placed with the collection box (182), and the box door (183) is hinged on the box body (2). Open the box door (183), the collection box (182) can be taken out from the box body (2).

7. The laser drilling device for PCB processing according to claim 1, characterized in that: It also includes a blowing mechanism, which includes a connecting plate (191), a spray head (192) and a hard pipe (193), the top of the longitudinal electric guide rail (3) is connected with the connecting plate (191), the connecting plate (191) is connected with the spray head (192), the spray head (192) is connected with the hard pipe (193), and the hard pipe (193) penetrates the box body (2).

8. The laser drilling device for PCB processing according to claim 1, characterized in that: It also includes a transparent plate (20), and the left side of the box body (2) is connected with the transparent plate (20).