Flexible hole device for circuit board

Abstract

The utility model discloses a kind of flexible trepanning devices of circuit board, it is related to circuit board processing technical field.The utility model includes processing box, processing bench is arranged in the inside of processing box, circuit board is arranged in the top of processing bench, further include: fixed mechanism, the fixed mechanism is arranged in the inside of processing box, and the fixed mechanism is used to fix circuit board.The utility model is by being arranged fixed mechanism, specifically is to start electric push rod and drive two racks to move back, make two rotating blocks anticlockwise rotation, rotating block rotates, two fixed plates are close to each other and hold circuit board, wave-shaped rubber pad is equipped at the contact place of fixed plate and circuit board, can increase friction force to prevent displacement, can also provide buffer, avoid damaging circuit board, this setting is by elastic clamping, can effectively prevent traditional rigid clamping mode to cause damage circuit board when clamping, and simultaneously by several positioning columns are positioned and fixed to circuit board, can greatly improve trepanning precision.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board processing technology, and in particular relates to a flexible hole-opening device for circuit boards. Background Technology

[0002] With the rapid development of emerging fields such as 5G communication, Internet of Things, and wearable devices, flexible printed circuit boards (FPCs) have become core components for internal connections of electronic devices due to their thinness, flexibility, and high integration. They are mostly made of polyimide (PI) substrate, which has the characteristics of low hardness and easy tearing.

[0003] Traditional circuit board drilling devices are mostly designed for rigid circuit boards. Typically, the circuit board is first placed on a workbench and fixed with a clamp before drilling. However, traditional clamping methods are mostly rigid and lack effective buffering, which can easily cause compression and deformation of flexible circuit boards, leading to circuit breaks or short circuits. To address this, we propose a flexible circuit board drilling device. Utility Model Content

[0004] The purpose of this invention is to provide a flexible perforation device for circuit boards. Specifically, by activating an electric push rod, two racks move backward, causing two rotating blocks to rotate counterclockwise. As the rotating blocks rotate, two fixed plates move closer together to clamp the circuit board. A corrugated rubber pad is provided at the contact point between the fixed plate and the circuit board, which increases friction to prevent displacement and provides cushioning to avoid damage to the circuit board. This elastic clamping effectively prevents damage to the circuit board caused by traditional rigid clamping methods. Simultaneously, several positioning posts position and fix the circuit board, greatly improving the perforation accuracy. This solves the problem that existing perforation devices often use rigid clamping, lack effective cushioning, and are prone to squeezing and deformation of flexible circuit boards, leading to open or short circuits.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a flexible perforation device for circuit boards, comprising a processing box, a processing table inside the processing box, a circuit board on top of the processing table, and a perforation machine mounted on the front of the inner wall of the processing box, and further comprising:

[0007] A fixing mechanism, disposed inside the processing box, is used to fix the circuit board; and

[0008] A protective mechanism is installed inside the processing box and is used to prevent debris from damaging the fixing mechanism.

[0009] The processing table has two support frames fixedly connected to the front and back of its bottom. The processing table is fixedly connected to the front and back of the inner wall of the processing box through several support frames. Two rectangular slots are opened inside the processing table.

[0010] Furthermore, the fixing mechanism includes two mounting plates, the top and bottom of the two mounting plates are fixedly connected to the top and bottom of the inner wall of the processing box, respectively, and two limiting plates are fixedly connected to the side of the two mounting plates that are close to each other.

[0011] A clamping assembly disposed inside the mounting plate, the clamping assembly being used to simultaneously clamp the top and bottom of the circuit board;

[0012] The clamping assembly is provided in two sets, with the two limiting plates forming a lifting groove, and several positioning columns fixedly connected to the top of the processing table.

[0013] Furthermore, the protective mechanism includes a collection box, which is fixedly connected to the bottom of the processing box. Two splash guards are fixedly connected to both the front and back of the inner wall of the processing box. The two splash guards on the front of the inner wall of the processing box are fixedly connected to the back of two limiting plates located at the rear, and the two splash guards on the back of the inner wall of the processing box are fixedly connected to the front of two limiting plates located at the front.

[0014] The collection box is V-shaped, and a drawer is inserted into the bottom of the collection box.

[0015] Furthermore, the clamping assembly includes a circular groove inside the mounting plate, a rotating block rotatably connected inside the circular groove, two arc-shaped grooves inside the rotating block, two lifting blocks slidingly limiting the lifting groove, and lifting columns fixedly connected to the side of each of the two lifting blocks near the rotating block, and the two lifting columns slidingly limiting the two arc-shaped grooves respectively.

[0016] Each of the two lifting blocks is fixedly connected to a clamping block on the side away from the rotating block. The clamping block is arc-shaped. Each of the two clamping blocks is fixedly connected to a fixing plate on the side away from the mounting plate. Each of the two fixing plates is fitted with a corrugated rubber pad on the side that is close to each other.

[0017] Furthermore, an electric push rod is fixedly connected to the bottom of the processing table, and a movable frame is fixedly connected to the output end of the electric push rod. A rack is fixedly connected to the left and right sides of the front of the movable frame, and a slider is fixedly connected to the left and right sides of the rack.

[0018] The processing box has support grooves on both the left and right sides of its inner wall, and the two mounting plates also have support grooves on the sides that are far apart from each other. The rack on the right side is slidably limited by two sliders to the support groove on the right mounting plate and the support groove on the right side of the inner wall of the processing box.

[0019] Furthermore, each of the two rotating blocks is fixedly connected to a rotating shaft on the side away from each other, and the outer surface of each of the two rotating shafts is provided with a number of teeth, and the two rotating shafts are respectively meshed with two racks;

[0020] The two splash guards located at the rear each have horizontal grooves inside, and the movable frame slides and limits the movement of the two horizontal grooves.

[0021] Furthermore, the top and bottom of the inner wall of the lifting groove are fixedly connected to fixing blocks, and the bottom of the two clamping blocks on the left side near the lifting groove is fixedly connected to L-shaped blocks.

[0022] Both L-shaped blocks are L-shaped, and rubber protrusions are fixedly connected to the contact parts of the two L-shaped blocks.

[0023] This utility model has the following beneficial effects:

[0024] This utility model features a fixing mechanism. Specifically, an electric push rod drives two racks to move backward, causing two rotating blocks to rotate counterclockwise. As the rotating blocks rotate, the two fixing plates move closer together to clamp the circuit board. A corrugated rubber pad is provided at the contact point between the fixing plate and the circuit board, which increases friction to prevent displacement and provides cushioning to avoid damage to the circuit board. This elastic clamping effectively prevents damage to the circuit board caused by traditional rigid clamping methods. At the same time, the circuit board is positioned and fixed by several positioning posts, which greatly improves the drilling accuracy.

[0025] This utility model incorporates a protective mechanism. Specifically, since debris generated from the opening can easily splash into the arc-shaped groove and affect operation, when fixing the circuit board, two lifting blocks approach each other, and two fixing blocks cooperate with them to prevent debris from entering the lifting groove and arc-shaped groove. The rubber protrusions at the contact points of the two L-shaped blocks also effectively block debris from entering the lifting groove and arc-shaped groove. Four further barriers prevent debris from entering, and a V-shaped collection box collects the debris into the drawer. This design prevents debris from splashing out of the processing box and also prevents debris from splashing into the lifting groove and arc-shaped groove, thus protecting the normal operation of the internal components.

[0026] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the processing box of this utility model;

[0030] Figure 3 This is a schematic diagram of the rotating shaft structure of this utility model;

[0031] Figure 4 This is a schematic diagram of the lifting groove structure of this utility model;

[0032] Figure 5 This is a schematic diagram of the overall structure of the clamping assembly of this utility model;

[0033] Figure 6 This is a schematic diagram of the L-shaped block structure of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Processing box; 11. Processing table; 111. Support frame; 12. Hole punch; 2. Fixing mechanism; 21. Mounting plate; 212. Lifting groove; 211. Limiting plate; 22. Positioning column; 23. Clamping assembly; 231. Circular groove; 232. Rotating block; 233. Arc groove; 234. Lifting block; 235. Lifting column; 236. Clamping block; 237. Fixing plate; 24. Electric push rod; 241. Moving frame; 242. Rack; 243. Support groove; 244. Slider; 245. Rotating shaft; 246. Horizontal groove; 3. Protective mechanism; 31. Collection box; 311. Drawer; 32. Anti-splash plate; 33. Fixing block; 34. L-shaped block. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figures 1-6As shown, this utility model is a flexible perforation device for circuit boards, including a processing box 1, a processing table 11 inside the processing box 1, a circuit board on the top of the processing table 11, and a perforation machine 12 installed on the front of the inner wall of the processing box 1. It also includes: a fixing mechanism 2, which is located inside the processing box 1 and is used to fix the circuit board; and a protective mechanism 3, which is located inside the processing box 1 and is used to prevent debris from damaging the fixing mechanism 2. The processing table 11 has two support frames 111 fixedly connected to the front and back of the bottom, and the processing table 11 is fixedly connected to the front and back of the inner wall of the processing box 1 through several support frames 111 respectively. The processing table 11 has two rectangular slots inside. The fixing mechanism 2 includes two mounting plates 21, the top and bottom of which are fixedly connected to the top and bottom of the inner wall of the processing box 1, respectively. Two limiting plates 211 are fixedly connected to the side of the two mounting plates 21 that are close to each other. The clamping assembly 23 is disposed inside the mounting plate 21 and is used to clamp the top and bottom of the circuit board at the same time. There are two sets of clamping assemblies 23. The two limiting plates 211 form a lifting groove 212. Several positioning posts 22 are fixedly connected to the top of the processing table 11. The protective mechanism 3 includes a collection box 31, which is fixedly connected to the bottom of the processing box 1. Two anti-splash plates 32 are fixedly connected to the front and back of the inner wall of the processing box 1. The two anti-splash plates 32 on the front of the inner wall of the processing box 1 are fixedly connected to the back of the two limiting plates 211 located at the rear, and the two anti-splash plates 32 on the back of the inner wall of the processing box 1 are fixedly connected to the front of the two limiting plates 211 located at the front. The collection box 31 is V-shaped, and a drawer 311 is inserted into the bottom of the collection box 31. The clamping assembly 23 includes a circular groove 231 inside the mounting plate 21. A rotating block 232 is rotatably connected inside the circular groove 231. Two arc-shaped grooves 233 are opened inside the rotating block 232. Two lifting blocks 234 are slidably limited in the lifting groove 212. Lifting columns 235 are fixedly connected to the side of each lifting block 234 near the rotating block 232. The two lifting columns 235 are slidably limited in the two arc-shaped grooves 233 respectively. Clamping blocks 236 are fixedly connected to the side of each lifting block 234 away from the rotating block 232. The clamping blocks 236 are arc-shaped. Fixing plates 237 are fixedly connected to the ends of each clamping block 236 away from the mounting plate 21. Corrugated rubber pads are installed on the sides of the two fixing plates 237 that are close to each other.An electric push rod 24 is fixedly connected to the bottom of the processing table 11. A movable frame 241 is fixedly connected to the output end of the electric push rod 24. A rack 242 is fixedly connected to the left and right sides of the front of the movable frame 241. A slider 244 is fixedly connected to the left and right sides of the rack 242. Support grooves 243 are provided on the left and right sides of the inner wall of the processing box 1. Support grooves 243 are provided on the side of the two mounting plates 21 that are far apart from each other. The rack 242 on the right side is slidably limited by the two sliders 244, which are respectively connected to the support groove 243 on the right mounting plate 21 and the support groove 243 on the right side of the inner wall of the processing box 1. Two rotating blocks 232 are fixedly connected to rotating shafts 245 on opposite sides. Each rotating shaft 245 has several teeth on its outer surface and is meshed with two racks 242. When the electric push rod 24 is activated, it moves the two racks 242 backward, causing the two rotating blocks 232 to rotate counterclockwise. When the rotating blocks 232 rotate, the two fixed plates 237 move closer to each other to clamp the circuit board. The contact points between the fixed plates 237 and the circuit board are provided with wavy rubber pads, which can increase friction to prevent displacement and provide cushioning to avoid damage to the circuit board. This setting, through elastic clamping, can effectively prevent damage to the circuit board caused by traditional rigid clamping methods. At the same time, the circuit board is positioned and fixed by several positioning posts 22, which can greatly improve the drilling accuracy. The two splash guards 32 located at the rear are provided with transverse grooves 246 inside, and the moving frame 241 is slidably limited to the two transverse grooves 246. The top and bottom of the inner wall of the lifting groove 212 are fixedly connected to fixing blocks 33. The bottom of the two clamping blocks 236 on the left side near the lifting groove 212 is fixedly connected to L-shaped blocks 34. The debris generated by the opening can easily splash into the arc groove 233 and affect the operation. When fixing the circuit board, the two lifting blocks 234 are close to each other, and the two fixing blocks 33 cooperate with them to prevent debris from entering the lifting groove 212 and the arc groove 233. The rubber convex strips at the contact point of the two L-shaped blocks 34 can also effectively block debris from entering the lifting groove 212 and the arc groove 233. The four anti-splash plates 32 further block the debris. The V-shaped collection box 31 collects the debris into the drawer 311. This setting can prevent debris from splashing out of the processing box 1 and also prevent debris from splashing into the lifting groove 212 and the arc groove 233, protecting the normal operation of its internal parts. The two L-shaped blocks 34 are both L-shaped, and the contact points of the two L-shaped blocks 34 are fixedly connected to rubber convex strips.

[0038] A specific application of this embodiment is as follows: In use, open the cabinet door of the processing box 1, place the circuit board on the processing table 11, and ensure that its left, right, and back ends abut against the positioning posts 22 for rapid positioning. Then, activate the electric push rod 24 to extend, causing the moving frame 241 and the two racks 242 to move backward together. Since the racks 242 are meshed with the rotating shaft 245, both rotating blocks 232 will rotate counterclockwise. Furthermore, both lifting blocks 234 are slidably limited by the lifting posts 235 and the two arc-shaped grooves 233 within the rotating blocks 232. Simultaneously, both lifting blocks 234 are slidably limited by the lifting grooves 212. Therefore, when the rotating blocks 232 rotate counterclockwise, the two lifting posts 235 will move along the two arc-shaped grooves 233. The two fixing plates 237 move closer to each other, clamping and fixing the top and bottom of the circuit board. The two rectangular slots on the processing table 11 allow the two fixing plates 237 below to contact the bottom of the circuit board. At the same time, the part of the fixing plate 237 that contacts the circuit board is provided with a wavy rubber pad, which can increase friction, prevent the circuit board from shifting, and also prevent damage to the circuit board while firmly clamping it. The sliders 244 on the left and right sides of the rack 242 are respectively engaged with the two support slots 243 to keep the rack 242 moving smoothly. The two anti-splash plates 32 at the rear are each provided with a transverse slot 246, which is engaged with the sliding limit of the moving frame 241 and can also support the moving frame 241.

[0039] At this point, the drilling machine 12 can be started. Its internal control system will control it to move along the X and Y axes. After reaching the designated position, the drill bit will be controlled to move down to drill a hole. The operator can check the processing progress in real time through the observation window on the top of the processing box 1. After the processing is completed, the electric push rod 24 is started to retract, which drives the two racks 242 to move forward. At this time, the two fixed plates 237 on the left and right sides are far apart from each other. Then the processed circuit board can be taken out.

[0040] Because a large amount of debris will fly when the hole is opened, the arc groove 233 needs to be protected to prevent debris from flying into its interior and affecting its normal operation. When fixing the circuit board, the two lifting blocks 234 will approach each other. At this time, the two fixing blocks 33 can work together with the two lifting blocks 234 to prevent debris from flying into the lifting groove 212 and the two arc grooves 233. At the same time, the contact parts of the two L-shaped blocks 34 are provided with rubber protrusions. The two L-shaped blocks 34 work together to effectively prevent debris from entering the lifting groove 212 and the two arc grooves 233. In addition, the four anti-splash plates 32 can block the debris. Since the collection box 31 is V-shaped, it can collect the debris into the drawer 311. The staff will periodically take out the drawer 311 for cleaning.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A flexible perforation device for circuit boards, comprising a processing box (1), wherein a processing table (11) is provided inside the processing box (1), a circuit board is provided on the top of the processing table (11), and a perforation machine (12) is installed on the front of the inner wall of the processing box (1), characterized in that, Also includes: Fixing mechanism (2), said fixing mechanism (2) is disposed inside the processing box (1), said fixing mechanism (2) is used to fix the circuit board; and A protective mechanism (3) is provided inside the processing box (1) to prevent debris from damaging the fixing mechanism (2). The processing table (11) has two support frames (111) fixedly connected to the front and back of the bottom. The processing table (11) is fixedly connected to the front and back of the inner wall of the processing box (1) through several support frames (111). The processing table (11) has two rectangular slots inside.

2. The flexible perforation device for circuit boards according to claim 1, characterized in that, The fixing mechanism (2) includes two mounting plates (21). The top and bottom of the two mounting plates (21) are fixedly connected to the top and bottom of the inner wall of the processing box (1), respectively. Two limiting plates (211) are fixedly connected to the side of the two mounting plates (21) that are close to each other. Clamping assembly (23), the clamping assembly (23) is disposed inside the mounting plate (21), the clamping assembly (23) is used to clamp the top and bottom of the circuit board simultaneously; The clamping assembly (23) is provided in two sets, and the two limiting plates (211) form a lifting groove (212). Several positioning columns (22) are fixedly connected to the top of the processing table (11).

3. The flexible perforation device for circuit boards according to claim 2, characterized in that, The protective mechanism (3) includes a collection box (31), which is fixedly connected to the bottom of the processing box (1). Two anti-splash plates (32) are fixedly connected to the front and back of the inner wall of the processing box (1). The two anti-splash plates (32) on the front of the inner wall of the processing box (1) are fixedly connected to the back of the two limiting plates (211) located at the rear, and the two anti-splash plates (32) on the back of the inner wall of the processing box (1) are fixedly connected to the front of the two limiting plates (211) located at the front. The collection box (31) is V-shaped, and a drawer (311) is inserted into the bottom of the collection box (31).

4. The flexible perforation device for a circuit board according to claim 3, characterized in that, The clamping assembly (23) includes a circular groove (231) inside the mounting plate (21), a rotating block (232) is rotatably connected inside the circular groove (231), two arc-shaped grooves (233) are opened inside the rotating block (232), two lifting blocks (234) are slidably limited in the lifting groove (212), and a lifting column (235) is fixedly connected to the side of the two lifting blocks (234) near the rotating block (232), and the two lifting columns (235) are slidably limited in cooperation with the two arc-shaped grooves (233) respectively; Among them, the two lifting blocks (234) are fixedly connected to the side away from the rotating block (232) with clamping blocks (236), the clamping blocks (236) are arc-shaped, the two clamping blocks (236) are fixedly connected to the end away from the mounting plate (21) with fixing plates (237), and the two fixing plates (237) are installed with wavy rubber pads on the side close to each other.

5. The flexible perforation device for a circuit board according to claim 4, characterized in that, The bottom of the processing table (11) is fixedly connected to an electric push rod (24), and the output end of the back of the electric push rod (24) is fixedly connected to a moving frame (241). The left and right sides of the front of the moving frame (241) are both fixedly connected to racks (242), and the left and right sides of the racks (242) are both fixedly connected to sliders (244). The processing box (1) has support grooves (243) on both the left and right sides of its inner wall, and the two mounting plates (21) have support grooves (243) on the sides that are far apart from each other. The rack (242) on the right side is slidably limited by two sliders (244) to the support groove (243) on the right mounting plate (21) and the support groove (243) on the right side of the inner wall of the processing box (1).

6. The flexible perforation device for a circuit board according to claim 5, characterized in that, The two rotating blocks (232) are fixedly connected to a rotating shaft (245) on the side away from each other. The outer surface of the two rotating shafts (245) is provided with a number of teeth. The two rotating shafts (245) are respectively meshed with two racks (242). Among them, the two splash guards (32) located at the rear are provided with horizontal grooves (246), and the movable frame (241) is slidably limited to the two horizontal grooves (246).

7. The flexible perforation device for a circuit board according to claim 6, characterized in that, The top and bottom of the inner wall of the lifting groove (212) are fixedly connected to a fixing block (33), and the bottom of the two clamping blocks (236) on the left side near the lifting groove (212) are fixedly connected to an L-shaped block (34). Both L-shaped blocks (34) are L-shaped, and rubber convex strips are fixedly connected to the contact parts of the two L-shaped blocks (34).

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