PCB drilling protection cover plate

Abstract

The utility model provides a PCB circuit board drilling protection cover plate, and belongs to the technical field of PCB circuit boards. Comprising a bottom plate used for containing a to-be-processed PCB; the top frame is arranged over the bottom plate in a sliding mode, and a sliding groove is formed in the top frame; a plurality of sliding blocks are arranged in the sliding groove in a sliding mode. And the multiple fixing blocks are evenly distributed in the top frame, the multiple fixing blocks are stably connected with the multiple sliding blocks, and the fixing blocks are used for fixing a to-be-machined PCB on the bottom plate. According to the circuit board drilling device, through cooperation of the sliding groove, the sliding block, the fixing block and other structures, the position of the fixing block can be accurately adjusted according to the drilling layout of a circuit board, and through cooperation of the installation groove, the anti-sliding block, the flexible block and other structures, it is ensured that the circuit board can keep a stable posture in the whole drilling process.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB circuit board technical field, especially a kind of PCB circuit board drilling protective cover plate. BACKGROUND

[0002] In the field of electronic manufacturing, the drilling process of PCB circuit board is a very critical process. With the continuous development of electronic equipment towards miniaturization and high performance, the design of PCB circuit board is becoming increasingly complex and diverse. Not only the number of layers is increasing, but also the layout of the circuit is becoming more and more precise, and the requirements of the number, position and aperture size of the drilling are becoming more and more stringent.

[0003] In the traditional drilling process of PCB circuit board, the protective cover plate used is mostly fixed by a fixed block with fixed position. This fixing method has obvious limitations when facing circuit boards with different drilling layouts. Since the position of the fixed block is not adjustable, when the drilling position of the circuit board conflicts with the position of the fixed block, effective fixation of the circuit board cannot be achieved, which affects the normal drilling operation, resulting in reduced production efficiency and difficulty in ensuring product quality. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a PCB circuit board drilling protective cover plate to solve the technical problem that the existing PCB circuit board drilling protective cover plate is prone to conflict with the drilling position during fixation, and the PCB circuit board drilling protective cover plate shakes during drilling, thereby affecting the drilling precision.

[0005] Technical scheme: To achieve the above purpose, the utility model is implemented by the following technical scheme: a PCB circuit board drilling protective cover plate, comprising: a bottom plate for containing a PCB circuit board to be processed; a top frame slidingly arranged above the bottom plate, a sliding groove is formed in the top frame; a plurality of sliding blocks are slidingly arranged in the sliding groove; a plurality of fixed blocks are evenly distributed in the top frame, and the plurality of fixed blocks are stably connected with the plurality of sliding blocks, the fixed blocks are used to fix the PCB circuit board to be processed on the bottom plate, wherein the top frame is made of engineering plastic by injection molding, this material has the characteristics of light weight and good insulation, which can reduce the static electricity effect on the circuit board; the sliding groove is designed after precise calculation and processing to ensure the smoothness and accuracy of the sliding block when sliding in it; the shape and size of the fixed block are optimized according to the edge profile of common circuit boards, and the connection between the bottom of the fixed block and the flexible block adopts an embedded structure to ensure the firmness and stability of the flexible block installation.

[0006] In a further embodiment, a mounting groove is provided on the base plate, which is adapted to the PCB to be processed, and is used to hold the PCB to be processed. The shape and size of the mounting groove closely match the shape of the PCB, and can provide a preliminary positioning function when the PCB is placed. The inner surface of the mounting groove is coated with an anti-static coating to prevent the PCB from being damaged by static electricity or attracting dust during installation and removal.

[0007] In a further embodiment, an anti-slip block is provided in the mounting groove, which is used to increase the friction between the PCB to be processed and the base plate. A plurality of flexible blocks are provided, and each flexible block corresponds to a fixed block. The flexible block is located on the side of the fixed block facing the PCB to be processed, and is used to provide cushioning protection when the PCB to be processed is fixed. The anti-slip block is made of rubber material with high friction coefficient, and its surface has a special texture structure similar to tire pattern, which can effectively increase the friction with the bottom surface of the PCB, and ensure that the PCB will not displace even if there is a large vibration during drilling. The flexible block is made of polyurethane material with high elasticity and fatigue resistance, which can uniformly distribute the pressure when fixing the PCB, and avoid damage to the PCB caused by excessive local pressure. At the same time, the surface of the flexible block has a certain stickiness, which can further enhance the contact stability with the PCB.

[0008] In a further embodiment, a plurality of guide rods are provided, which are uniformly distributed on both sides of the base plate and penetrate the top frame. The guide rods are used to define the sliding track of the top frame. The guide rods are subjected to high-precision grinding processing, and have smooth surface and high straightness, which provide accurate guidance for the up and down sliding of the top frame. The connection parts of the guide rods with the base plate and the top frame can adopt interference fit, and are reinforced by tightening nuts, to ensure the firmness and stability of the connection.

[0009] In a further embodiment, a plurality of auxiliary rods are provided, which are uniformly distributed on both sides of the base plate. One end of each auxiliary rod is connected to the base plate, and the other end penetrates the top frame. A pressing block is rotatably connected to the other end of the auxiliary rod. The pressing block is located above the top frame, and the bottom of the pressing block is in contact with the upper surface of the top frame. The pressing block is used to press the top frame downward. The auxiliary rod serves as an auxiliary support and connects the pressing block, and its structure design ensures that it will not bend and deform when bearing the pressure of the pressing block. The connection of the auxiliary rod with the base plate and the top frame can adopt threaded connection, and is provided with a lock washer to prevent loosening caused by vibration during use. The pressing block is designed as an eccentric structure, and the contact point between the pressing block and the top frame can be changed by rotating the pressing block, so as to press different positions of the top frame and make the top frame uniformly press and fix the PCB. The rotary connection of the pressing block and the auxiliary rod can adopt a knuckle bearing to ensure the flexibility and stability of the rotation of the pressing block.

[0010] In a further embodiment, a control rod is arranged on the side of the pressing block away from the top frame, and the control rod is used to control the rotation of the pressing block, wherein the control rod is connected to the pressing block by welding, and the welding process is strictly controlled to ensure the connection strength; the length and shape of the control rod are designed according to the ergonomic principle, so as to facilitate the force operation of the operator and reduce the operation fatigue.

[0011] In a further embodiment, a spring is installed on the periphery of the auxiliary rod, and the spring is arranged between the bottom plate and the top frame, and is used to reset the top frame, wherein the spring is made of high-quality carbon spring steel wire and is subjected to a heat treatment process to improve its elasticity and fatigue life; the parameters of the spring are accurately calculated and selected according to the weight of the top frame and the required reset force, so as to ensure that the top frame can be quickly and stably reset after the control rod is released.

[0012] In a further embodiment, the depth of the mounting groove is less than the thickness of the PCB to be processed.

[0013] Beneficial effects: 1. The fixed block on the top frame is in perfect cooperation with the internal sliding groove and sliding block, and the fixed block can slide flexibly on the top frame under the structural support of the auxiliary rod; the fixed block can be accurately positioned according to the drilling layout of the circuit board; whether it is a high-density circuit board with a complex drilling pattern or a customized circuit board with a special drilling position, the protective cover plate can effectively avoid the drilling position and stably fix the circuit board.

[0014] 2. The mounting groove of the bottom plate cooperates with the anti-skid block to provide accurate initial positioning for the circuit board, and effectively prevents the circuit board from sliding during the drilling process by means of the friction force of the anti-skid block; at the same time, the guide rod and the auxiliary rod cooperate with each other to strictly control the up-down movement trajectory of the top frame, so that the top frame can stably and uniformly press down when fixing the circuit board; thereby ensuring that the circuit board can maintain a stable posture during the whole drilling process, and effectively avoiding the drilling position deviation caused by shaking. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 It is a structural schematic diagram of the present application.

[0017] Figure 2 It is Figure 1 a main sectional structural schematic diagram.

[0018] Figure 3 It isFigure 1 side sectional structure schematic diagram.

[0019] Figure 4 is Figure 2 structure schematic diagram at A of

[0020] The reference signs in the drawings are as follows: 1, bottom plate; 101, mounting groove; 102, guide rod; 103, auxiliary rod; 2, top frame; 3, anti-skid block; 4, pressing block; 401, control rod; 5, spring; 6, fixed block; 601, flexible block. DETAILED DESCRIPTION

[0021] In order to make the purposes, technical solutions and advantages of the utility model clearer, the technical solutions in the utility model are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] The application provides a PCB line plate drilling protection cover plate, which solves the technical problems that the existing PCB line plate drilling protection cover plate is prone to conflict with a drilling position during fixing and that the PCB line plate drilling protection cover plate shakes during drilling, thereby affecting drilling precision. In actual use, the purposes of effectively avoiding conflict between the fixed block and the drilling position and preventing the line plate from shaking during drilling are achieved.

[0023] In order to better understand the above technical solutions, the above technical solutions will be described in detail in combination with the drawings of the specification and specific embodiments.

[0024] With reference to Figures 1-4 A PCB line plate drilling protection cover plate, comprising: a bottom plate 1 for containing a to-be-processed PCB line plate; a top frame 2 slidingly arranged above the bottom plate 1, wherein a sliding groove is formed in the top frame 2; a plurality of sliding blocks are slidingly arranged in the sliding groove; a plurality of fixed blocks 6 are arranged, and the plurality of fixed blocks 6 are uniformly distributed in the top frame 2, the plurality of fixed blocks 6 are stably connected with the plurality of sliding blocks, and the fixed blocks 6 are used for fixing the to-be-processed PCB line plate on the bottom plate 1.

[0025] The bottom plate 1 provides a stable placement surface for the to-be-processed PCB line plate, and the top frame 2 avoids interference between the fixed blocks 6 and the drilling position when fixing the to-be-processed PCB line plate by sliding relative to the bottom plate 1 and the fixed blocks 6 capable of flexibly adjusting the position inside the top frame 2.

[0026] A mounting groove 101 is formed in the bottom plate 1, the mounting groove 101 is matched with the to-be-processed PCB line plate, and the mounting groove 101 is used for containing the to-be-processed PCB line plate.

[0027] The accurate initial placement position is provided for the PCB to be processed, so that the PCB can be quickly and accurately positioned on the base plate 1, the time and error of manual adjustment are reduced, the installation efficiency is improved, and the accuracy of subsequent fixing and drilling operations is improved.

[0028] The anti-slip block 3 is arranged in the mounting groove 101, and the anti-slip block 3 is used to increase the friction between the PCB to be processed and the base plate 1; the flexible blocks 601 are provided in plurality, and the plurality of flexible blocks 601 correspond to the plurality of fixing blocks 6, the flexible blocks 601 are on the side of the fixing blocks 6 facing the PCB to be processed, and the flexible blocks 601 are used to provide buffer protection when fixing the PCB to be processed.

[0029] The anti-slip block 3 enhances the stability of the PCB to be processed in the mounting groove 101, prevents displacement during drilling due to vibration or external force, and ensures drilling accuracy. The flexible blocks 601 provide buffer protection for the PCB to be processed during fixing, avoid scratching the surface of the PCB or damaging the internal circuit due to hard extrusion, and uniformly distribute the fixing force, further improving the fixing effect and the integrity of the PCB to be processed.

[0030] The guide rods 102 are provided in plurality, and the plurality of guide rods 102 are uniformly distributed on both sides of the base plate 1 and penetrate the top frame 2, and the guide rods 102 are used to limit the sliding track of the top frame 2.

[0031] The guide rods 102 provide accurate guidance for the up and down sliding of the top frame 2, ensure that the top frame 2 always maintains linear motion during movement, enable the fixing blocks 6 to uniformly and stably act on the PCB to be processed, avoid uneven fixing force and drilling deviation caused by the deviation of the top frame 2, and improve the working stability and drilling accuracy of the entire device.

[0032] The auxiliary rods 103 are provided in plurality, and the plurality of auxiliary rods 103 are uniformly distributed on both sides of the base plate 1, one end of the auxiliary rod 103 is connected with the base plate 1, and the other end penetrates the top frame 2; the pressing block 4 is rotatably connected to the other end of the auxiliary rod 103, the pressing block 4 is above the top frame 2, the bottom of the pressing block 4 is in contact with the upper surface of the top frame 2, and the pressing block 4 is used to extrude the top frame 2 downward.

[0033] The auxiliary rods 103 connect the pressing block 4 and the base plate 1 to form a stable mechanical structure; the rotary design of the pressing block 4 enables the operator to conveniently control the downward pressing of the top frame 2, realizes the fixing of the PCB to be processed, and is simple and efficient in operation, reduces the time and labor cost required for fixing the PCB.

[0034] The control rod 401 is arranged on the side of the pressing block 4 away from the top frame 2, and the control rod 401 is used to control the rotation of the pressing block 4.

[0035] The convenient and labor-saving operation mode is provided for the operator, the rotation of the pressing block 4 can be easily controlled through the control rod 401, and then the pressing action of the top frame 2 is accurately controlled, so that the fixing process is more controllable, the convenience and accuracy of operation are improved, and the operation difficulty and labor intensity are reduced.

[0036] The spring 5 is installed on the periphery of the auxiliary rod 103, the spring 5 is between the bottom plate 1 and the top frame 2, and the spring 5 is used for resetting the top frame 2.

[0037] After the drilling is completed, the spring 5 can automatically pop up and reset the top frame 2, thereby providing convenience for replacing the PCB to be processed, without the need for additional power devices or complex operations to restore the initial state of the device, thereby simplifying the operation process, improving the continuity and efficiency of processing, and reducing the downtime of the equipment.

[0038] The depth of the mounting groove 101 is less than the thickness of the PCB to be processed.

[0039] The PCB to be processed is partially protruded from the mounting groove 101, so that the fixing block 6 is fixed with the PCB to be processed.

[0040] In use, first, the PCB to be processed is placed in the mounting groove 101 of the bottom plate 1, the mounting groove 101 is matched with the PCB in shape, so that the PCB to be processed is preliminarily positioned, and the anti-skid block 3 in the mounting groove 101 increases the friction between the PCB to be processed and the bottom plate 1, so that the PCB to be processed is placed more stably; then, according to the size and drilling layout of the PCB to be processed, the position of the fixing block 6 is adjusted in the top frame 2, the fixing block 6 is smoothly moved in the sliding groove of the top frame 2 through the sliding block, and after the position is determined, the sliding block can be locked to fix the fixing block 6; then, the control rod 401 is operated to rotate the pressing block 4, the pressing block 4 presses the top frame 2 downward by means of the auxiliary rod 103, the top frame 2 smoothly slides downward along the trajectory defined by the guide rod 102, the flexible block 601 on the fixing block 6 is in contact with the PCB to be processed and applies uniform and stable pressure, and the PCB to be processed is firmly fixed; during drilling, the bottom plate 1 provides stable support for the PCB to be processed, the anti-skid block 3 prevents the PCB to be processed from sliding, and the drilling position is ensured to be accurate; after drilling is completed, the spring 5 on the auxiliary rod 103 acts to pop up and reset the top frame 2, at this time, the processed PCB can be conveniently taken out, and a new PCB to be processed can be placed.

[0041] The graphics expressed in the drawings are example graphics, and the purpose is only to more intuitively show the key structure and connection relationship of the PCB drilling protective cover plate; in actual application, the appearance and size of the device can be adjusted and optimized according to specific needs.

[0042] The utility model covers any alternative, modification, equivalent method and scheme which is made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the above preferred embodiment of the utility model, and the utility model can be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.

[0043] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection range of the utility model.

Claims

1. A PCB board drilling protection cover plate characterized by, Include: The bottom plate (1) is used for containing the PCB to be processed; The top frame (2) is slidably arranged above the bottom plate (1), and a sliding groove is formed in the top frame (2); a plurality of sliding blocks are slidably arranged in the sliding groove; A plurality of fixing blocks (6) are arranged, and the plurality of fixing blocks (6) are uniformly distributed in the top frame (2), and the plurality of fixing blocks (6) are stably connected with the plurality of sliding blocks, and the fixing block (6) is used for fixing the PCB to be processed on the bottom plate (1).

2. The PCB board drilling protection cover plate according to claim 1, characterized in that, Also includes: The mounting groove (101) is formed on the bottom plate (1), the mounting groove (101) is matched with the PCB to be processed, and the mounting groove (101) is used for containing the PCB to be processed.

3. The PCB board drilling protection cover plate according to claim 2, characterized in that, Also includes: The anti-skid block (3) is arranged in the mounting groove (101), and the anti-skid block (3) is used for increasing the friction between the PCB to be processed and the bottom plate (1); A plurality of flexible blocks (601) are arranged, and the plurality of flexible blocks (601) correspond to the plurality of fixing blocks (6), the flexible block (601) is on the side of the fixing block (6) facing the PCB to be processed, and the flexible block (601) is used for providing buffer protection when fixing the PCB to be processed.

4. The PCB board drilling protection cover plate according to claim 1, characterized in that, Also includes: The guide rod (102) is arranged, and the plurality of guide rods (102) are uniformly distributed on both sides of the bottom plate (1) and penetrate the top frame (2), and the guide rod (102) is used for limiting the sliding track of the top frame (2).

5. The PCB board drilling protection cover plate according to claim 1, characterized in that, Also includes: The auxiliary rod (103) is arranged, and the plurality of auxiliary rods (103) are uniformly distributed on both sides of the bottom plate (1), one end of the auxiliary rod (103) is connected with the bottom plate (1), and the other end penetrates the top frame (2); The pressing block (4) is rotatably connected to the other end of the auxiliary rod (103), the pressing block (4) is above the top frame (2), the bottom of the pressing block (4) is in contact with the upper surface of the top frame (2), and the pressing block (4) is used for extruding the top frame (2) downward.

6. The PCB board drilling protection cover plate according to claim 5, wherein, Also includes: The control rod (401) is arranged on the side of the pressing block (4) away from the top frame (2), and the control rod (401) is used for controlling the rotation of the pressing block (4).

7. The PCB board drilling protection cover plate according to claim 5, wherein, Also includes: The spring (5) is installed on the periphery of the auxiliary rod (103), the spring (5) is between the bottom plate (1) and the top frame (2), and the spring (5) is used for resetting the top frame (2).

8. The PCB board drilling protection cover plate according to claim 2, characterized in that: The depth of the mounting groove (101) is less than the thickness of the PCB to be processed.

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