A FPC laser drilling machine

Abstract

The present invention belongs to the technical field of laser drilling machines, and specifically is an FPC laser drilling machine, a workbench, a support seat, a telescopic pneumatic rod and a laser component, the support seat is fixedly connected to the top of the workbench, the telescopic pneumatic rod passes through the support seat and extends through the top of the workbench, the telescopic pneumatic rod is slidably connected to the support seat and the workbench; the laser component is fixedly connected to the telescopic pneumatic rod, and a controller is fixedly connected to one side of the workbench; a moving unit is located on the workbench; a driving unit is located in the workbench and is used to drive the moving unit to work; a No. 1 baffle is fixedly connected to the laser component, and compared with the existing protective cover that needs to be locked by bolts and some locking mechanisms, the present invention realizes the formation of a closed space through the cooperation of the moving unit, the driving unit and the No. 1 baffle, which greatly improves the convenience of operating the FPC laser drilling machine.

Description

Technical Field

[0001] The invention belongs to the technical field of laser drilling machines, in particular to an FPC laser drilling machine. Background Art

[0002] FPC, or flexible printed circuit board, can greatly reduce the size of electronic products due to its excellent flexibility, heat resistance, small size and thinness, which is conducive to the development of electronic products towards lightness, thinness and multi-function. At the same time, FPC conforms to the development trend of miniaturization of modern electronic information products. Therefore, it has accounted for an increasing proportion in the PCB industry in recent years. While flexible printed circuit boards are developing towards high precision, high density and high reliability, they require small apertures and a large number of holes on the circuit board.

[0003] At present, drilling processing is divided into four methods: photo-induced drilling, plasma drilling, mechanical drilling, and laser drilling. Most micro-holes and blind holes are drilled by laser drilling. Laser drilling machines use laser changes and intercept the changed beam peaks to directly ablate to drill. Compared with other drilling processing methods, laser drilling machines have higher drilling accuracy.

[0004] In the prior art, when a laser drilling machine drills holes in small and medium-sized flexible circuit boards, fine dust and smoke are generated. Workers generally use a protective cover in conjunction with a dust suction device to absorb the fine dust and smoke generated by drilling. However, the protective cover that cooperates with the dust suction device needs to be locked with bolts and some locking mechanisms, making the protective cover inconvenient to install and difficult to adjust, which increases the difficulty of installing the protective cover and also reduces the protective cover's absorption of fine dust and smoke.

[0005] In view of this, in order to overcome the above technical problems, the present invention designs an FPC laser drilling machine to solve the above technical problems. Summary of the invention

[0006] The technical problem to be solved by the present invention is that in the prior art, when a laser drilling machine drills holes in small and medium-sized flexible circuit boards, fine dust and smoke are generated. Workers generally use a protective cover in conjunction with a dust collection device to absorb the fine dust and smoke generated by drilling. However, the protective cover in conjunction with the dust collection device needs to be locked with bolts and some locking mechanisms, which makes the protective cover inconvenient to install and difficult to adjust, which increases the difficulty of installing the protective cover and also reduces the absorption of fine dust and smoke by the protective cover.

[0007] The present invention provides an FPC laser drilling machine, comprising a workbench, a support seat, a telescopic pneumatic rod and a laser assembly, wherein the support seat is fixedly connected to the top of the workbench, the telescopic pneumatic rod passes through the support seat and extends through the top of the workbench, the telescopic pneumatic rod is slidably connected to the support seat and the workbench; the laser assembly is fixedly connected to the telescopic pneumatic rod, and a controller is fixedly connected to one side of the workbench; and further comprising;

[0008] A mobile unit; the mobile unit is located on a workbench;

[0009] A driving unit; the driving unit is located in the workbench and is used to drive the mobile unit to work;

[0010] Baffle No. 1; the baffle No. 1 is fixedly connected to the laser assembly.

[0011] Preferably, the driving unit comprises:

[0012] Rack No. 1; the rack No. 1 is fixedly connected to the telescopic gas pressure rod in the workbench;

[0013] Support rod; both ends of the support rod are rotatably connected to the inner wall of the workbench;

[0014] A first flat gear; the first flat gear is sleeved on the support rod and fixedly connected to the support rod; the first flat gear is meshed with a first rack;

[0015] The second flat gear is sleeved on a support rod away from one end of the first flat gear and is fixedly connected to the support rod.

[0016] Preferably, the mobile unit comprises:

[0017] T-shaped slide; both ends of the T-shaped slide are fixedly connected to the inner wall of the workbench;

[0018] T-shaped slider; the T-shaped slider is embedded in the slide groove and is slidably connected to the inner wall of the T-shaped slide groove;

[0019] No. 2 rack; the No. 2 rack is fixedly connected to one end of the T-shaped slider away from the T-shaped slide groove; the No. 2 rack is meshed with the No. 2 flat gear;

[0020] Slide groove; a slide groove is provided on the top of the workbench;

[0021] The baffle is embedded in the slide groove and is slidably connected to the slide groove;

[0022] Connecting rod; one end of the connecting rod is fixedly connected to the end of the T-shaped slider away from the second flat gear; the other end is fixedly connected to the baffle;

[0023] A U-shaped plate; the U-shaped plate is located below the laser assembly; one end of the U-shaped plate away from the laser assembly is fixedly connected to the top of the workbench.

[0024] Preferably, a limiting unit is further included; the limiting unit includes;

[0025] A base; the base is fixedly connected to the top of the workbench;

[0026] A placement table; the placement table is fixedly connected to one end of the base away from the workbench; U-shaped grooves are formed on both sides of the placement table;

[0027] A sliding plate; the sliding plate is slidably connected to the U-shaped groove;

[0028] A spring; the spring is arranged in the U-shaped groove; one end of the spring is fixedly connected to the inner wall of the U-shaped groove; the other end is fixedly connected to the sliding plate.

[0029] Preferably, an absorption unit is further included; the absorption unit is located inside the workbench; and is used for absorbing the fine dust and fumes generated by the laser of the flexible circuit board; the absorption unit includes;

[0030] An absorption box; the absorption box is fixedly connected to the bottom of the workbench;

[0031] A dust collector; the dust collector is fixedly connected to the inner wall of the absorption box;

[0032] An air suction pipe; one end of the air suction pipe penetrates through the top of the absorption box and is communicated with the dust collector; the other end penetrates through the top of the workbench and is communicated with the U-shaped plate.

[0033] Preferably, a blowing unit is further included; the blowing unit is arranged inside the workbench; the blowing unit further includes;

[0034] A cam; the cam is fixedly connected to the support rod;

[0035] A support column; the support column is fixedly connected to the bottom of the workbench;

[0036] An airbag; the airbag is fixedly connected to one end of the support column away from the workbench;

[0037] An air outlet pipe; one end of the air outlet pipe is communicated with the airbag; the other end penetrates through the top of the workbench and is communicated with the U-shaped plate.

[0038] Preferably, a circular buffer plate is fixedly connected to the top of the laser assembly.

[0039] Preferably, a buffer block is fixedly connected to one end of the sliding plate away from the spring.

[0040] Preferably, the circular buffer plate and the buffer block are made of latex.

[0041] Preferably, a collection box is arranged at the bottom of the absorption box; the collection box is slidably connected to the absorption box.

[0042] The beneficial effects of the present invention are as follows:

[0043] 1. The present invention provides an FPC laser drilling machine. Through the cooperation of a moving unit, a driving unit, and a first baffle, driven by a telescopic air pressure rod, a closed space is formed by the moving unit, the driving unit, and the first baffle. During the process of forming the closed space, there is no need for staff to install and adjust. Only the power generated by a single telescopic air pressure rod can complete the task. Compared with the existing protective cover that needs to be locked with bolts and some locking mechanisms, when installing the protective cover, staff need to use other tools, which reduces the installation difficulty between the moving unit and the first baffle and greatly improves the operation convenience of the FPC laser drilling machine.

[0044] 2. The present invention provides an FPC laser drilling machine. The slide plate and the buffer block also slowly approach the flexible circuit board. The spring in the U-shaped groove gradually returns from the compressed state until it clamps the flexible circuit board, avoiding the direct impact of the slide plate on the flexible circuit board and reducing the probability of damage to the flexible circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The present invention will be further described below with reference to the accompanying drawings.

[0046] Figure 1 is the exploded view of the present invention;

[0047] Figure 2 is the perspective view of the present invention;

[0048] Figure 3 is the front view of the present invention;

[0049] Figure 4 is the left sectional view of the present invention;

[0050] Figure 5 is the right sectional view of the present invention;

[0051] Figure 6 is the right view of the present invention;

[0052] Figure 7 is Figure 6 the sectional view at a-a in

[0053] Figure 8 is the top view of the placement table;

[0054] Fig. 9 is the sectional view of the limiting unit;

[0055] In the figure: workbench 1, support base 2, telescopic pneumatic rod 3, laser assembly 4, first rack 5, support rod 6, first spur gear 7, second spur gear 8, T-shaped chute 9, T-shaped slider 11, second rack 12, chute 13, baffle 14, connecting rod 15, U-shaped plate 16, base 17, placement table 18, C-shaped groove 181, slide plate 19, spring 21, absorption box 22, dust collector 23, suction pipe 24, cam 25, support column 26, airbag 27, air outlet pipe 28, annular buffer plate 29, buffer block 31, collection box 32, first baffle 33, controller 34. Detailed implementation

[0056] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0057] In the prior art, when a laser drilling machine drills a small and medium-sized flexible circuit board, fine dust and fumes will be generated. Generally, a protective cover is used in cooperation with a dust suction device to absorb the fine dust and fumes generated during drilling. However, the protective cover cooperating with the dust suction device needs to be locked with bolts and some locking mechanisms, making the protective cover inconvenient to install and difficult to adjust, resulting in an increase in the installation difficulty of the protective cover and a reduction in the absorption of fine dust and fumes by the protective cover.

[0058] To solve the above problems, the main concept adopted in this embodiment is as follows: Through the cooperation of the moving unit, the driving unit and the first baffle 33, the present invention forms a closed space driven by the telescopic pneumatic rod 3. During the formation of the closed space, there is no need for staff to install and adjust, and only the power generated by a single telescopic pneumatic rod 3 is required to complete the task. Compared with the existing protective cover that needs to be locked with bolts and some locking mechanisms, and the staff needs to use other tools to install the protective cover, the installation difficulty of the moving unit and the first baffle 33 is reduced, and the operation convenience of the FPC laser drilling machine is greatly improved.

[0059] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0060] The present invention provides an FPC laser drilling machine, comprising a workbench 1, a support seat 2, a telescopic pneumatic rod 3 and a laser assembly 4, wherein the support seat 2 is fixedly connected to the top of the workbench 1, the telescopic pneumatic rod 3 passes through the support seat 2 and extends through the top of the workbench 1, and the telescopic pneumatic rod 3 is slidably connected to the support seat 2 and the workbench 1; the laser assembly 4 is fixedly connected to the telescopic pneumatic rod 3, and the laser assembly 4 is a drill bit structure of a metal laser micro-hole machine in the prior art; a controller 34 is fixedly connected to one side of the workbench 1; and further comprising;

[0061] Mobile unit; the mobile unit is located on the workbench 1;

[0062] Driving unit; the driving unit is located in the workbench 1; it is used to drive the moving unit to work;

[0063] The first baffle plate 33 is fixedly connected to the laser assembly 4;

[0064] The staff first places the flexible circuit board that needs to be laser drilled on the workbench 1. After the flexible circuit board is placed, the telescopic gas pressure rod 3 is slidably connected with the support seat 2 and the top of the workbench 1. Here, under the control of the electrical system, the telescopic gas pressure rod 3 is controlled to move downward. The telescopic gas pressure rod 3 moving downward drives the laser assembly 4 fixed to the telescopic gas pressure rod 3 to move downward, and the No. 1 baffle 33 fixed to the laser assembly 4 also moves downward together;

[0065] During the downward movement of the telescopic gas pressure rod 3, the driving unit is driven to rotate, and the rotating driving unit drives the moving unit to start moving. When the moving unit contacts the No. 1 baffle 33 moving downward, the telescopic gas pressure rod 3 is controlled to stop moving under the control of the electrical system. At this time, the moving unit and the No. 1 baffle 33 form a closed space. At this time, the staff starts the controller 34 switch, and transmits an electrical signal to the laser assembly 4 through the controller 34, so that the laser assembly 4 completes drilling of the flexible circuit board.

[0066] During the entire movement process, the staff does not need to use some bolts and locking mechanisms, so that the flexible circuit board is laser drilled in a closed space, which improves the sealing performance of the mobile unit and the first baffle 33. At the same time, the mobile unit and the first baffle 33 do not need to be installed or adjusted, which reduces the difficulty of installing the mobile unit and the first baffle 33, and also improves the absorption of fine dust and smoke by the protective cover;

[0067] The present invention forms a closed space among the mobile unit, the driving unit and the No. 1 baffle 33 through the cooperation of the mobile unit, the driving unit and the No. 1 baffle 33, driven by the telescopic pneumatic rod 3. In the process of forming the closed space, there is no need for workers to install and adjust, and only the power generated by the single telescopic pneumatic rod 3 is required to complete the process. Compared with the existing protective cover, which needs to be locked by bolts and some locking mechanisms, the workers need to use other tools to install the protective cover, which reduces the difficulty of installing the mobile unit and the No. 1 baffle 33 and greatly improves the convenience of operating the FPC laser drilling machine.

[0068] As a specific implementation of the present invention, the driving unit includes:

[0069] The first rack 5 is fixedly connected to the telescopic gas pressure rod 3 in the workbench 1;

[0070] Support rod 6; both ends of the support rod 6 are rotatably connected to the inner wall of the workbench 1;

[0071] The first flat gear 7; the first flat gear 7 is sleeved on the support rod 6 and fixedly connected to the support rod 6; the first flat gear 7 is meshed with the first rack 5;

[0072] The second flat gear 8 is sleeved on the support rod 6 at one end away from the first flat gear 7 and is fixedly connected to the support rod 6;

[0073] As a specific implementation of the present invention, the mobile unit includes:

[0074] T-shaped slide groove 9; both ends of the T-shaped slide groove 9 are respectively fixedly connected to the inner wall of the workbench 1;

[0075] T-shaped slider 11; the T-shaped slider 11 is embedded in the slide groove 9 and is slidably connected to the inner wall of the T-shaped slide groove 9;

[0076] The second rack 12; the second rack 12 is fixedly connected to the end of the T-shaped slider 11 away from the T-shaped slide groove 9; the second rack 12 is meshed with the second flat gear 8;

[0077] A chute 13 is provided on the top of the workbench 1;

[0078] The baffle 14 is embedded in the slide groove 13 and is slidably connected to the slide groove 13;

[0079] A connecting rod 15; one end of the connecting rod 15 is fixedly connected to an end of the T-shaped slider 11 away from the second flat gear 8; the other end is fixedly connected to the baffle 14;

[0080] U-shaped plate 16; the U-shaped plate 16 is located below the laser assembly 4; one end of the U-shaped plate 16 away from the laser assembly 4 is fixedly connected to the top of the workbench 1;

[0081] The staff fixes the flexible circuit board that needs to be laser drilled in the middle of the U-shaped plate 16 on the workbench 1. After the fixation is completed, the telescopic gas pressure rod 3 is controlled to move downward under the control of the electrical system. Since the surface of the telescopic gas pressure rod 3 in the workbench 1 is fixedly connected with the No. 1 rack 5, the telescopic gas pressure rod 3 inside the workbench 1 gradually extends during the downward movement of the telescopic gas pressure rod 3, and the No. 1 rack 5 on the extended telescopic gas pressure rod 3 moves downward, thereby driving the No. 1 flat gear 7 meshing therewith to rotate forward, and the No. 1 flat gear 7 rotating forward drives the support rod 6 rotatably connected to the inner wall of the workbench 1 to rotate forward;

[0082] At the same time, the No. 2 flat gear 8 fixedly connected to the support rod 6 also rotates forwardly with the forward rotation of the support rod 6. At this time, the No. 2 flat gear 8 that rotates forwardly drives the No. 2 rack 12 that is meshed and fixedly connected to the T-shaped slider 11 to make a lateral movement along the T-shaped slide groove 9 in the direction of the No. 2 flat gear 8. During the lateral movement, the connecting rod 15 fixedly connected to the end of the T-shaped slider 11 away from the No. 2 flat gear 8 gradually approaches the end of the No. 2 flat gear 8 as the T-shaped slider 11 moves, and the baffle 14 fixedly connected to the connecting rod 15 moves in the slide groove 13 opened on the top of the workbench 1 under the drive of the connecting rod 15, and the baffle 14 in the slide groove 13 gradually moves toward the U-shaped plate 16 fixedly connected to the top of the workbench 1;

[0083] As the telescopic gas pressure rod 3 gradually moves downward, driven by the No. 1 flat gear 7, the No. 2 flat gear 8 drives the No. 2 rack 12 and the T-shaped slider 11 in the T-shaped slide 9 to continue to move horizontally. The No. 2 rack 12 and the T-shaped slider 11 that continue to move here drive the connecting rod 15 and the baffle 14 to gradually move along the slide 13 toward the U-shaped plate 16; at the same time, the laser assembly 4 fixedly connected to the telescopic gas pressure rod 3 moves downward under the action of the telescopic gas pressure rod 3. Since the No. 1 baffle 33 is fixed It is connected to the laser assembly 4, so that the first baffle 33 also moves downward. When the telescopic gas pressure rod 3 drives the baffle 14 to contact with the U-shaped plate 16, the telescopic gas pressure rod 3 is controlled to stop moving under the control of the electrical system. At this time, the baffle 14 contacts with the U-shaped plate 16, so that the notch of the U-shaped plate 16 is completely closed, and the first baffle 33 moving downward contacts with the top of the U-shaped plate 16, completing the top closure of the U-shaped plate 16, so that the flexible circuit board that needs to be laser drilled is in a closed space;

[0084] At this time, the worker manually presses the switch of the controller 34, and the controller 34 transmits an electrical signal to the laser assembly 4, and the laser assembly 4 is started. After being started, the laser assembly 4 performs laser drilling on the flexible circuit board; the worker does not need to use other tools to install the baffle 14, the first baffle 33 and the U-shaped plate 16 during operation, which reduces the difficulty of installation of the mechanism and greatly improves the convenience of operation of the FPC laser drilling machine. At the same time, the closed space prevents the smoke and fine dust generated by laser drilling from floating into the air, thereby improving the working environment of the worker;

[0085] When the drilling of the flexible circuit board is completed, under the control of the electrical system, the telescopic gas pressure rod 3 is controlled to move upward, so that in the process of the telescopic gas pressure rod 3 moving upward, the telescopic gas pressure rod 3 inside the workbench 1 gradually returns to its original state, and the No. 1 rack 5 on the telescopic gas pressure rod 3 that has returned to its original state drives the No. 1 flat gear 7 meshing with it to reverse, and the reversed No. 1 flat gear 7 drives the support rod 6 rotatably connected to the inner wall of the workbench 1 to reverse;

[0086] At the same time, the second flat gear 8 also reverses with the reverse rotation of the support rod 6. At this time, the reversed second flat gear 8 drives the second rack 12 meshing and fixedly connected to the T-shaped slider 11 to make a lateral movement along the T-shaped slide groove 9 in the direction away from the second flat gear 8. During the lateral movement, the connecting rod 15 fixedly connected to the end of the T-shaped slider 11 away from the second flat gear 8 gradually moves away from the end of the second flat gear 8 as the T-shaped slider 11 moves. At this time, the baffle 14 fixedly connected to the connecting rod 15, driven by the connecting rod 15, the baffle 14 and the U-shaped plate 16 are gradually separated, and the notch of the U-shaped plate 16 is opened. At the same time, the telescopic pneumatic rod 3 moving upward also drives the laser assembly 4 and the first baffle 33 to move upward, and the top of the U-shaped plate 16 will also open. When the telescopic pneumatic rod 3 moves to the original position, the staff takes the flexible circuit board, and under the control of the electrical system, controls the telescopic pneumatic rod 3 to stop moving, and the staff takes out the flexible circuit board in the U-shaped plate 16 to complete the laser drilling of the flexible circuit board;

[0087] In the process of forming a closed space, the baffle 14, the No. 1 baffle 33 and the U-shaped plate 16 are closed at the same time, and the telescopic pneumatic rod 3 does not contact the bottom of the workbench 1. At the same time, the number of racks of the No. 1 rack 5 fixedly connected to the telescopic pneumatic rod 3 can complete the entire moving distance of the mechanism.

[0088] As a specific embodiment of the present invention, the limiting unit is fixedly connected to the top of the workbench 1; it is used to limit the position of the flexible circuit board from being offset; the limiting unit includes:

[0089] Base 17; the base 17 is fixedly connected to the top of the workbench 1;

[0090] Placement table 18; the placement table 18 is fixedly connected to one end of the base 17 away from the workbench 1; both sides of the placement table 18 are provided with U-shaped grooves 181;

[0091] Sliding plates 19; the sliding plates 19 are slidably connected to the U-shaped grooves 181; the number of the sliding plates 19 is two;

[0092] Springs 21; the springs 21 are arranged in the U-shaped grooves 181; one end of each spring 21 is fixedly connected to the inner wall of the U-shaped groove 181, and the other end is fixedly connected to the corresponding sliding plate 19; the number of the springs 21 is more than one;

[0093] By adopting the above technical solution, when the mechanism moves in the FPC laser drilling machine, the transmission between the gear and the rack will generate vibration. Under the action of the vibration, the base 17 and the placement table 18 fixedly connected to the top of the workbench 1 will shake. The flexible circuit board placed on the placement table 18 will move due to the shake, resulting in the position where the flexible circuit board needs to be laser drilled being offset from the laser drill bit in the laser assembly 4, causing the failure of laser drilling of the flexible circuit board, damaging the flexible circuit board, and further causing waste of the flexible circuit board;

[0094] Therefore, by providing U-shaped grooves 181 on both sides of the placement table 18, the sliding plates 19 are embedded in the U-shaped grooves 181, and the sliding plates 19 and the U-shaped grooves 181 are fixedly connected by springs 21. During the process of placing the flexible circuit board, the staff manually spreads the sliding plates 19. During the spreading process, the spread sliding plates 19 squeeze the springs 21, and the compressed springs 21 deform, causing the sliding plates 19 to move in the corresponding U-shaped grooves 181 respectively. At this time, the staff places the flexible circuit board in the middle position of the placement table 18;

[0095] After the placement is completed, the staff slowly releases the hand. During the process of releasing the hand, the sliding plates 19 also slowly approach the flexible circuit board. The springs 21 in the U-shaped grooves 181 gradually recover from the compressed state until they clamp it. At this time, the staff removes the hand from the placement table 18; this avoids the sliding plates 19 directly hitting the flexible circuit board, reducing the probability of damage to the flexible circuit board; the springs 21 in the U-shaped grooves 181 also buffer the shake of the workbench 1; under the action of the sliding plates 19 and the springs 21, it is avoided that the flexible circuit board on the placement table 18 moves due to the shake, resulting in the position where the flexible circuit board needs to be laser drilled being offset from the laser drill bit in the laser assembly 4, thereby improving the quality of laser drilling of the flexible circuit board.

[0096] As a specific implementation manner of the present invention, the absorption unit includes;

[0097] Absorption box 22; the absorption box 22 is fixedly connected to the bottom of the workbench 1;

[0098] The vacuum cleaner 23 is fixedly connected to the inner wall of the absorption box 22;

[0099] Suction pipe 24; one end of the suction pipe 24 passes through the top of the absorption box 22 and is connected to the vacuum cleaner 23; the other end passes through the top of the workbench 1 and is connected to the U-shaped plate 16;

[0100] By adopting the above technical solution, when the laser component 4 drills holes in the flexible circuit board, the laser component 4 uses a high-power density laser beam to irradiate the processed area, so that the processed area is heated to the vaporization temperature and evaporates to form holes. During laser drilling, there will be fine dust and smoke. At this time, the staff presses the switch of the controller 34 by hand, and transmits an electrical signal to the vacuum cleaner 23 through the controller 34. The vacuum cleaner 23 works and starts to absorb the fine dust and smoke generated by the laser drilling in the closed space through the suction pipe 24. The absorbed fine dust and smoke are led to the absorption box 22. The vacuum cleaner 23 cooperates with the closed space formed by the baffle 14, the first baffle 33 and the U-shaped plate 16 to prevent the generated smoke and fine dust from floating into the air, and also prevents the fine dust from falling on the flexible circuit board. The staff does not need to clean it again, which reduces the labor intensity of the staff; when the laser drilling is completed, the staff presses the switch of the controller 34 by hand, and transmits an electrical signal to the vacuum cleaner 23 through the controller 34, thereby turning off the vacuum cleaner 23.

[0101] As a specific embodiment of the present invention, a blowing unit; the blowing unit is arranged in the workbench 1; the blowing unit also includes;

[0102] Cam 25; the cam 25 is fixedly connected to the support rod 6;

[0103] Support column 26; the support column 26 is fixedly connected to the bottom of the workbench 1;

[0104] The airbag 27 is fixed to the end of the support column 26 away from the workbench 1;

[0105] An air outlet pipe 28; one end of the air outlet pipe 28 is connected to the air bag 27; the other end passes through the top of the workbench 1 and is connected to the U-shaped plate 16;

[0106] By adopting the above technical scheme, during the downward movement of the telescopic pneumatic rod 3, the cam 25 fixedly connected to the support rod 6 also rotates forwardly with the forward rotation of the support rod 6. At this time, the forward rotating cam 25 squeezes the airbag 27 on the support column 26 to blow out the gas in the airbag 27, and the blown gas is blown to the flexible circuit board fixed on the storage table 18 through the air outlet pipe 28; to prevent dust in the air from falling on the flexible circuit board. When the laser drilling is completed, under the control of the electrical system, the telescopic pneumatic rod 3 is controlled to move upward, so that during the upward movement of the telescopic pneumatic rod 3, the cam 25 fixedly connected to the support rod 6 is also reversed with the reverse rotation of the support rod 6. The reversed cam 25 squeezes the airbag 27, and blows the gas in the airbag 27 to the flexible circuit board on the storage table 18, so that the temperature at the position of the laser drilling is reduced, and the gas blown out through the air outlet pipe 28 blows up the fine dust, and cooperates with the absorption unit to absorb the fine dust into the absorption box 22; further clean the fine dust on the surface of the flexible circuit board; improve the cleanliness of the surface of the flexible circuit board;

[0107] The rotating cam 25 intermittently squeezes the airbag 27; when the cam 25 leaves the airbag 27, the squeezed airbag 27 inhales air through the air intake pipe provided on the airbag 27, so that the airbag 27 returns to its original state, which is convenient for the next squeezing, and a one-way valve is provided in the air intake pipe and the air storage tank 28 to ensure the one-way flow of the airflow;

[0108] As a specific embodiment of the present invention, the top of the laser assembly 4 is fixedly connected to an annular buffer plate 29;

[0109] By adopting the above technical solution, the laser assembly 4 moves upward with the telescopic pneumatic rod 3. During the upward movement, the top of the laser assembly 4 will collide with the telescopic pneumatic rod 3, generating vibration, causing the drill bit in the laser assembly 4 to shift, affecting the accuracy of drilling by the laser assembly 4. Therefore, an annular buffer plate 29 is fixed to the top of the laser assembly 4 to provide an additional buffer point at the top of the laser assembly 4, thereby avoiding the collision of the laser assembly 4 with the telescopic pneumatic rod 3 during the movement and generating additional vibration, thereby ensuring the stability of the laser assembly 4 mechanism.

[0110] As a specific embodiment of the present invention, one end of the slide plate 19 away from the spring 21 is fixedly connected to the buffer block 31;

[0111] By adopting the above technical solution, after the skateboard 19 clamps the flexible circuit board, the moving unit starts to work. During the movement of the moving unit, the workbench 1 vibrates, and then the storage table 18 vibrates, causing the skateboard 19 in the storage table 18 to squeeze the flexible circuit board, causing damage to the flexible circuit board. Therefore, a buffer block 31 is fixed to one end of the skateboard 19, and the buffer block 31 contacts the flexible circuit board to provide a certain buffer for the flexible circuit board, avoiding direct contact between the flexible circuit board and the skateboard 19, reducing the squeezing strength of the skateboard 19 on the flexible circuit board, and thereby reducing the probability of damage to the flexible circuit board.

[0112] As a specific embodiment of the present invention, the annular buffer plate 29 and the buffer block 31 are made of latex;

[0113] In the FPC laser drilling machine, the annular buffer plate 29 and the buffer block 31 are made of latex, which has resilience, support and a certain deformation range. The annular buffer plate 29 and the buffer block 31 will be deformed after being impacted or vibrated, thereby improving the buffering performance of the annular buffer plate 29 and the buffer block 31. On the other hand, for the flexible circuit board, the two sides of the flexible circuit board are sunk into the buffer block 31, clamping the flexible circuit board, further limiting the position of the flexible circuit board, and thereby improving the accuracy of laser drilling.

[0114] As a specific embodiment of the present invention, a collecting box 32 is provided at the bottom of the absorption box 22; the collecting box 32 is slidably connected to the absorption box 22;

[0115] After the FPC laser drilling machine has been working for a period of time, dust accumulates in the absorption box 22. At this time, the staff pulls the collection box 32 out of the absorption box 22. After the collection box 32 is pulled out, the dust inside it is cleaned to make the inside of the collection box 32 clean. After cleaning, the collection box 32 is pushed into the absorption box 22 to continue collecting the fine dust generated by the laser drilling of the flexible circuit board, thereby preventing the fine dust from floating into the air and further improving the working environment of the staff.

[0116] The specific workflow is as follows:

[0117] During the process of placing the flexible circuit board, the staff member uses their hand to spread open the slide plate 19. During the spreading process, the spread slide plate 19 squeezes the spring 21, and the spring 21 under pressure deforms, causing the slide plate 19 to move respectively within the corresponding U-shaped grooves 181. At this time, the staff member places the flexible circuit board in the middle position of the placement table 18. After the placement is completed, the staff member slowly releases their hand. During the process of releasing the hand, the slide plate 19 and the buffer block 31 also slowly approach the flexible circuit board. The spring 21 within the U-shaped groove 181 gradually returns from the compressed state until it clamps the flexible circuit board; at this time, the staff member removes their hand from the placement table 18; after the flexible circuit board is fixed, under the control of the electrical system, the telescopic pneumatic rod 3 is controlled to move downward. Since the first rack 5 is fixedly connected to the surface of the telescopic pneumatic rod 3 within the workbench 1, when the telescopic pneumatic rod 3 moves downward, the telescopic pneumatic rod 3 within the workbench 1 gradually extends. The first rack 5 on the extended telescopic pneumatic rod 3 then drives the first spur gear 7 meshing with it to rotate forward. The forward-rotating first spur gear 7 drives the support rod 6 rotatably connected to the inner wall of the workbench 1 to rotate forward;

[0118] At the same time, the second spur gear 8 fixedly connected to the support rod 6 also rotates forward as the support rod 6 rotates forward. At this time, the forward-rotating second spur gear 8 drives the second rack 12 fixedly connected to the T-shaped slider 11 to move horizontally along the T-shaped chute 9 in the direction of the second spur gear 8. During the horizontal movement process, the connecting rod 15 fixedly connected to the end of the T-shaped slider 11 away from the second spur gear 8 gradually approaches the end of the second spur gear 8 as the T-shaped slider 11 moves. And the baffle 14 fixedly connected to the connecting rod 15, driven by the connecting rod 15, moves within the chute 13 opened at the top of the workbench 1. The baffle 14 within the chute 13 gradually moves in the direction of the U-shaped plate 16 fixedly connected to the top of the workbench 1;

[0119] As the telescopic pneumatic rod 3 gradually moves downward, driven by the first spur gear 7, the second spur gear 8 is prompted to drive the second rack 12 and the T-shaped slider 11 within the T-shaped chute 9 to continue moving horizontally. Here, the continuously moving second rack 12 and T-shaped slider 11 drive the connecting rod 15 and the baffle 14 to move gradually along the chute 13 in the direction of the U-shaped plate 16; at the same time, the laser assembly 4 fixedly connected to the telescopic pneumatic rod 3, under the action of the telescopic pneumatic rod 3, the laser assembly 4 moves downward. Since the first baffle 33 is fixedly connected to the laser assembly 4, the first baffle 33 also moves downward accordingly. When the telescopic pneumatic rod 3 moves a certain distance, under the control of the electrical system, the telescopic pneumatic rod 3 is controlled to stop moving. At this time, the baffle 14 contacts the U-shaped plate 16, causing the notch of the U-shaped plate 16 to be closed, and the downward-moving first baffle 33 contacts the top of the U-shaped plate 16, completing the closure of the top of the U-shaped plate 16, thereby placing the flexible circuit board that needs laser drilling in a closed space;

[0120] At this time, the worker presses the switch of the controller 34 by hand, and transmits an electrical signal to the laser assembly 4 through the controller 34, and the laser assembly 4 is started. After being started, the laser assembly 4 performs laser drilling on the flexible circuit board; the worker does not need to use other tools to install the baffle 14, the first baffle 33 and the U-shaped plate 16 during operation, which reduces the difficulty of installation of the mechanism and greatly improves the convenience of operation of the FPC laser drilling machine. At the same time, the closed space prevents the smoke and fine dust generated by laser drilling from floating into the air, thereby improving the working environment of the worker;

[0121] When the drilling of the flexible circuit board is completed, under the control of the electrical system, the telescopic gas pressure rod 3 is controlled to move upward, so that in the process of the telescopic gas pressure rod 3 moving upward, the telescopic gas pressure rod 3 inside the workbench 1 gradually returns to its original state, and the No. 1 rack 5 on the telescopic gas pressure rod 3 that has returned to its original state drives the No. 1 flat gear 7 meshing with it to reverse, and the reversed No. 1 flat gear 7 drives the support rod 6 rotatably connected to the inner wall of the workbench 1 to reverse;

[0122] At the same time, the No. 2 flat gear 8 also reverses with the reverse rotation of the support rod 6. At this time, the reversed No. 2 flat gear 8 drives the No. 2 rack 12 that is meshed and fixedly connected to the T-shaped slider 11 to make a lateral movement along the T-shaped slide groove 9 in the direction away from the No. 2 flat gear 8. During the lateral movement, the connecting rod 15 fixedly connected to the end of the T-shaped slider 11 away from the No. 2 flat gear 8 gradually moves away from the end of the No. 2 flat gear 8 as the T-shaped slider 11 moves. At this time, the baffle 14 fixedly connected to the connecting rod 15 is driven by the connecting rod 15 to gradually separate from the U-shaped plate 16, and the notch of the U-shaped plate 16 is opened. The telescopic gas pressure rod 3 moving upward also drives the laser assembly 4 and the first baffle plate 33 to move upward, and the top of the U-shaped plate 16 will also open. When the telescopic gas pressure rod 3 moves a distance sufficient for the staff to take the flexible circuit board, the telescopic gas pressure rod 3 is controlled to stop moving under the control of the electrical system, and the staff takes out the flexible circuit board in the U-shaped plate 16 to complete the laser drilling of the flexible circuit board; an annular buffer plate 29 is fixed to the top of the laser assembly 4 to provide an additional buffer point at the top of the laser assembly 4, thereby avoiding the collision between the laser assembly 4 and the telescopic gas pressure rod 3 during the movement, thereby generating additional vibration;

[0123] In the process of forming the closed space, the baffle 14, the first baffle 33 and the U-shaped plate 16 are closed at the same time, and the telescopic gas pressure rod 3 does not contact the bottom of the workbench 1, and the number of racks of the first rack 5 fixedly connected to the telescopic gas pressure rod 3 can complete the entire moving distance of the mechanism;

[0124] By adopting the above technical solution, when the laser component 4 drills holes in the flexible circuit board, the laser component 4 uses a high-power density laser beam to irradiate the processed part, so that the processed part is heated to the vaporization temperature and evaporates to form holes. During laser drilling, there will be fine dust and smoke. At this time, the staff presses the switch of the controller 34 by hand, and transmits an electrical signal to the vacuum cleaner 23 through the controller 34. The vacuum cleaner 23 works and starts to absorb the fine dust and smoke generated by the laser drilling in the closed space through the suction pipe 24. The absorbed fine dust and smoke are led to the absorption box 22. The vacuum cleaner 23 cooperates with the closed space formed by the baffle 14, the first baffle 33 and the U-shaped plate 16 to prevent the generated smoke and fine dust from floating into the air, and also prevents the fine dust from falling on the flexible circuit board. The staff does not need to clean it again, which reduces the labor intensity of the staff; when the laser drilling is completed, the staff presses the switch of the controller 34 by hand, and transmits an electrical signal to the vacuum cleaner 23 through the controller 34, thereby turning off the vacuum cleaner 23;

[0125] When the telescopic pneumatic rod 3 moves downward, the cam 25 fixedly connected to the support rod 6 also rotates forward with the forward rotation of the support rod 6. At this time, the forward rotating cam 25 squeezes the air bag 27 on the support column 26 to blow out the gas in the air bag 27, and the blown gas is blown to the flexible circuit board fixed on the storage table 18 through the air outlet pipe 28; to prevent dust in the air from falling on the flexible circuit board. When the laser drilling is completed, under the control of the electrical system, the telescopic pneumatic rod 3 is controlled to move upward, so that when the telescopic pneumatic rod 3 moves upward, it drives the cam 25 fixedly connected to the support rod 6 to reverse with the reverse rotation of the support rod 6. The reversed cam 25 squeezes the air bag 27, and blows the gas in the air bag 27 to the flexible circuit board on the storage table 18, so that the temperature at the position of the laser drilling is reduced, and the gas blown out through the air outlet pipe 28 blows up the fine dust, and cooperates with the absorption unit to absorb the fine dust into the absorption box 22; further clean the fine dust on the surface of the flexible circuit board; improve the cleanliness of the surface of the flexible circuit board;

[0126] The rotating cam 25 intermittently squeezes the airbag 27; when the cam 25 leaves the airbag 27, the squeezed airbag 27 inhales air through the air intake pipe provided on the airbag 27, so that the airbag 27 returns to its original state, which is convenient for the next squeezing, and a one-way valve is provided in the air intake pipe and the air storage tank 28 to ensure the one-way flow of the airflow;

[0127] When the laser assembly 4 moves upward along with the telescopic pneumatic rod 3, the top of the laser assembly 4 may collide with the telescopic pneumatic rod 3 unnecessarily during the upward movement, causing the drill bit in the laser assembly 4 to deviate, affecting the accuracy of drilling by the laser assembly 4. Therefore, an annular buffer plate 29 is fixed to the top of the laser assembly 4 to provide an additional buffer point at the top of the laser assembly 4, thereby avoiding the collision of the laser assembly 4 with the telescopic pneumatic rod 3 during the movement and generating additional vibration, thereby ensuring the stability of the laser assembly 4 mechanism;

[0128] After the FPC laser drilling machine has been working for a period of time, dust accumulates in the absorption box 22. At this time, the staff pulls the collection box 32 out of the absorption box 22. After the collection box 32 is pulled out, the dust inside it is cleaned to make the inside of the collection box 32 clean. After cleaning, the collection box 32 is pushed into the absorption box 22 to continue collecting the fine dust generated by the laser drilling of the flexible circuit board, thereby preventing the fine dust from floating into the air and further improving the working environment of the staff.

[0129] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An FPC laser drilling machine, comprising a workbench (1), a support seat (2), a telescopic pneumatic rod (3) and a laser assembly (4), wherein the support seat (2) is fixedly connected to the top of the workbench (1), the telescopic pneumatic rod (3) passes through the support seat (2) and extends through the top of the workbench (1), the telescopic pneumatic rod (3) is slidably connected to the support seat (2) and the workbench (1); the laser assembly (4) is fixedly connected to the telescopic pneumatic rod (3); a controller (34) is fixedly connected to one side of the workbench (1); and the characteristics are: Further comprising; A moving unit; the moving unit is located on the workbench (1); A driving unit; the driving unit is located inside the workbench (1); For driving the moving unit to work; A first baffle (33); the first baffle (33) is fixedly connected to the laser assembly (4); The driving unit includes; A first rack (5); the first rack (5) is fixedly connected to the telescopic pneumatic rod (3) inside the workbench (1); A support rod (6); both ends of the support rod (6) are rotatably connected to the inner wall of the workbench (1); A first spur gear (7); the first spur gear (7) is sleeved on the support rod (6) and fixedly connected to the support rod (6); the first spur gear (7) meshes with the first rack (5); A second spur gear (8); the second spur gear (8) is sleeved on the support rod (6) at the end far from the first spur gear (7) and fixedly connected to the support rod (6); The moving unit includes; A T-shaped chute (9); both ends of the T-shaped chute (9) are fixedly connected to the inner wall of the workbench (1); A T-shaped slider (11); the T-shaped slider (11) is embedded in the chute (9) and slidably connected to the inner wall of the T-shaped chute (9); A second rack (12); the second rack (12) is fixedly connected to the end of the T-shaped slider (11) far from the T-shaped chute (9); the second rack (12) meshes with the second spur gear (8); A chute (13); a chute (13) is provided at the top of the workbench (1); A baffle (14); the baffle (14) is embedded in the chute (13) and slidably connected to the chute (13); A connecting rod (15); one end of the connecting rod (15) is fixedly connected to the end of the T-shaped slider (11) far from the second spur gear (8); the other end is fixedly connected to the baffle (14); A U-shaped plate (16); the U-shaped plate (16) is located below the laser assembly (4); the end of the U-shaped plate (16) far from the laser assembly (4) is fixedly connected to the top of the workbench (1); Further comprising a limiting unit; the limiting unit includes; A base (17); the base (17) is fixedly connected to the top of the workbench (1); A placement table (18); the placement table (18) is fixedly connected to the end of the base (17) far from the workbench (1); both sides of the placement table (18) are provided with U-shaped grooves (181); A sliding plate (19); the sliding plate (19) is slidably connected to the U-shaped groove (181); A spring (21); the spring (21) is arranged in the U-shaped groove (181); one end of the spring (21) is fixedly connected to the inner wall of the U-shaped groove (181); the other end is fixedly connected to the sliding plate (19); Further comprising an absorption unit; the absorption unit is located inside the workbench (1); for absorbing the fine dust and fumes generated by the laser of the flexible circuit board; the absorption unit includes; An absorption box (22); the absorption box (22) is fixedly connected to the bottom of the workbench (1); A dust collector (23); the dust collector (23) is fixedly connected to the inner wall of the absorption box (22); An air suction pipe (24); one end of the air suction pipe (24) penetrates through the top of the absorption box (22) and communicates with the dust collector (23); the other end penetrates through the top of the workbench (1) and communicates with the U-shaped plate (16); It further includes a blowing unit; the blowing unit is arranged inside the workbench (1); the blowing unit further includes; a cam (25); the cam (25) is fixedly connected to the support rod (6); a support column (26); the support column (26) is fixedly connected to the bottom of the workbench (1); an airbag (27); the airbag (27) is fixedly connected to one end of the support column (26) away from the workbench (1); an air outlet pipe (28); one end of the air outlet pipe (28) is communicated with the airbag (27); the other end penetrates through the top of the workbench (1) and is communicated with the U-shaped plate (16); After the placement is completed, the staff slowly releases the hand. During the process of releasing the hand, the slide plate (19) also slowly approaches the flexible circuit board. The spring (21) in the C-shaped groove (181) gradually returns from the compressed state until it clamps the flexible circuit board. At this time, the staff removes the hand from the placement table (18); this avoids the slide plate (19) directly hitting the flexible circuit board and reduces the probability of damage to the flexible circuit board; the spring (21) in the C-shaped groove (181) also buffers the shaking of the workbench (1); under the action of the slide plate (19) and the spring (21), it is avoided that the flexible circuit board on the placement table (18) moves due to shaking, resulting in the position where the flexible circuit board needs to be laser drilled being offset from the laser drill bit in the laser assembly (4), thereby improving the quality of laser drilling of the flexible circuit board.

2. The FPC laser drilling machine according to claim 1, characterized in that: A ring-shaped buffer plate (29) is fixedly connected to the top of the laser assembly (4).

3. The FPC laser drilling machine according to claim 2, characterized in that: A buffer block (31) is fixedly connected to one end of the slide plate (19) away from the spring (21).

4. The FPC laser drilling machine according to claim 3, characterized in that: The ring-shaped buffer plate (29) and the buffer block (31) are made of latex.

5. The FPC laser drilling machine according to claim 1, characterized in that: A collection box (32) is provided at the bottom of the absorption box (22); the collection box (32) is slidably connected to the absorption box (22).

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