Multi-layer circuit board micropore drilling precision positioning device

Abstract

The utility model discloses a multi-layer circuit board micropore drilling precision positioning device which comprises a guide rail and a multi-layer circuit board, positioning grooves are formed in the two sides of a guide groove in the guide rail, and a plurality of conveying rollers used for conveying the multi-layer circuit board are arranged in the positioning grooves. A conveying channel matched with the width of the multi-layer circuit board is formed between the conveying roller and the top surface of the positioning groove, the multi-layer circuit board is arranged in the guide rail, the two sides of the multi-layer circuit board are inserted into the conveying channel and are in contact with the conveying roller, a plurality of grooves are formed in the middle of the guide rail, and positioning plates are arranged in the transversely opposite grooves. The multi-layer circuit board conveying device is simple in structure, a plurality of multi-layer circuit boards can be moved in a conveying mode, efficiency is improved, positioning can be automatically completed after the multi-layer circuit boards are moved to a certain position, and convenience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-layer circuit board processing, in particular to a multi-layer circuit board micro-hole drilling precision positioning device. Background Art

[0002] A multilayer circuit board is a printed circuit board with electrical connections arranged on different layers. Its structure usually consists of 3 to 16 layers, or even more, of copper foil layers stacked together, and contains holes to complete the connection. This structure makes the wiring of a multilayer circuit board more complicated than that of a single-sided or double-sided circuit board, but it can significantly reduce the size of the circuit board.

[0003] At present, the multi-layer circuit board punching positioning on the production line usually adopts the method of manually placing the circuit board in the placement slot that matches the size of the circuit board, pressing the seams flush, and then using tape to glue and fix the four sides of the circuit board to the operating table. Small semi-automatic drilling machines require manual placement of the circuit board on the pad and manual pressing for positioning. The positioning is not accurate and fast enough, and affects the disassembly and transportation efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a multi-layer circuit board micro-hole drilling precision positioning device, which can move multiple multi-layer circuit boards by conveying and automatically complete positioning after moving to a certain position, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized through the following technical scheme: a multi-layer circuit board micro-hole drilling precision positioning device, comprising a guide rail and a multi-layer circuit board, positioning grooves are arranged on both sides of the guide groove inside the guide rail, a plurality of conveying rollers for conveying the multi-layer circuit board are arranged in the positioning groove, a conveying channel matching the width of the multi-layer circuit board is formed between the conveying rollers and the top surface of the positioning groove, the multi-layer circuit board is arranged inside the guide rail, the two sides of the multi-layer circuit board are inserted into the conveying channel and are arranged in contact with the conveying rollers, a plurality of grooves are arranged in the middle of the guide rail, positioning plates are arranged in the transversely opposite grooves, and an adjusting mechanism for driving the positioning plate to move inward or open outward is installed at one end of the positioning plate.

[0006] As a preferred technical solution, the adjustment mechanism includes a screw rod, a motor, multiple adjustment blocks, multiple first bearings and a fixed frame. The adjustment blocks are all installed at one end of the positioning plate, and the adjustment blocks are staggered with the multi-layer circuit board. The adjustment blocks are provided with screw rod holes, and the fixed frames are all arranged on the outside of the adjustment blocks. One end of the fixed frame is installed on the outer side of the guide rail. The screw rods are threadedly connected to the longitudinally opposite screw rod holes, one end of the screw rod is installed in the inner ring of the first bearing on one side, and the motor is installed on the fixed frame. The rotating shaft of the motor passes through the inner ring of the first bearing on the other side and is fixedly connected to the other end of the screw rod through a coupling.

[0007] As a preferred technical solution, the positioning plates are all arranged in a "U"-shaped structure, with both sides of the positioning plates slidingly arranged in the grooves and extending into the positioning grooves to abut against the end faces of the multi-layer circuit boards, and the middle ends of the positioning plates are placed on the top surface of the guide rails.

[0008] As a preferred technical solution, a second bearing is embedded in the positioning groove on one side facing the conveying roller, and an axial hole is provided in the positioning groove on the other side facing the conveying roller. The roller shaft at one end of the conveying roller is installed in the inner ring of the second bearing, and the roller shaft at the other end of the conveying roller extends to the outside through the axial hole, and is installed with a synchronous wheel. A driving wheel is provided at the outermost side of the synchronous wheel, and a synchronous belt is wound around the outside of the driving wheel and multiple synchronous wheels. A motor for driving the driving wheel to rotate is installed on the outer side of the driving wheel, and a fixed seat is installed between the outer side of the motor and the guide rail.

[0009] As a preferred technical solution, a proximity switch for controlling the moving distance of the multi-layer circuit board is installed on the guide rail.

[0010] The beneficial effects of the utility model are as follows: the utility model has a simple structure, can move multiple multi-layer circuit boards by conveying, thereby increasing efficiency, and can automatically complete positioning after moving to a certain position. After drilling is completed, the positioning plate can be opened outward, so that the multi-layer circuit board can be moved toward the next workstation without the need for disassembly and assembly, thereby greatly increasing convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model after the adjustment mechanism is removed;

[0014] Figure 3 It is a structural schematic diagram of the guide rail in the utility model.

[0015] Among them, 1. guide rail; 2. positioning groove; 3. conveyor roller; 4. synchronous wheel; 5. synchronous belt; 6. motor; 7. multi-layer circuit board; 8. positioning plate; 9. adjustment block; 10. fixing frame; 11. screw rod; 12. motor; 13. groove. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0018] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, a multi-layer circuit board micro-hole drilling precision positioning device of the utility model comprises a guide rail 1 and a multi-layer circuit board 7, positioning grooves 2 are provided on both sides of the guide groove inside the guide rail 1, a plurality of conveying rollers 3 for conveying the multi-layer circuit board 7 are provided in the positioning groove 2, a conveying channel matching the width of the multi-layer circuit board 7 is formed between the conveying rollers 3 and the top surface of the positioning groove 2, the multi-layer circuit board 7 is arranged inside the guide rail 1, both sides of the multi-layer circuit board 7 are inserted into the conveying channel and are arranged in contact with the conveying rollers 3, a plurality of grooves 13 are provided in the middle of the guide rail 1, positioning plates 8 are provided in the laterally opposite grooves 13, and an adjusting mechanism for driving the positioning plate 8 to move inward or open outward is installed at one end of the positioning plate 8.

[0020] In this embodiment, the adjustment mechanism includes a screw 11, a motor 12, a plurality of adjustment blocks 9, a plurality of first bearings and a fixing frame 10. The adjustment blocks 9 are all installed at one end of the positioning plate 8. The adjustment blocks 9 are staggered with the multi-layer circuit board 7. The adjustment blocks 9 are all provided with screw holes. The fixing frames 10 are all arranged on the outside of the adjustment blocks 9. One end of the fixing frames 10 is installed on the outer surface of the guide rail 1. The screws 11 are all threadedly connected to the screw holes opposite to each other in the longitudinal direction. One end of the screw 11 is installed in the inner ring of the first bearing on one side. The motor 12 is installed on the fixing frame 10. The rotating shaft of the motor 12 passes through the inner ring of the first bearing on the other side and is fixedly connected to the other end of the screw 11 through a coupling.

[0021] The middle of the screw rod is used as a dividing line, and the screw teeth on both sides of the screw rod are arranged oppositely, so that the adjusting block can be driven to move inward or outward synchronously.

[0022] In this embodiment, the positioning plates 8 are all arranged in a "U"-shaped structure. The two sides of the positioning plates 8 are slidably arranged in the grooves 13, and extend into the positioning grooves 2 to abut against the end faces of the multilayer circuit boards 7. The middle ends of the positioning plates 8 are placed on the top surface of the guide rails 1, so that the positioning plates can only move along the longitudinal direction of the grooves, thereby ensuring the stability of the positioning plates and avoiding swinging and shaking.

[0023] In this embodiment, the second bearing is embedded in the positioning groove 2 on one side facing the conveying roller 3, and the axial hole is provided at the positioning groove 2 on the other side facing the conveying roller 3. The roller shaft at one end of the conveying roller 3 is installed in the inner ring of the second bearing, and the roller shaft at the other end of the conveying roller 3 extends to the outside through the axial hole, and is installed with a synchronous wheel 4. A driving wheel is provided at the outermost side of the synchronous wheel 4, and a synchronous belt 5 is wound around the outside of the driving wheel and multiple synchronous wheels 4. A motor 6 for driving the driving wheel to rotate is installed on the outer side of the driving wheel, and a fixed seat is installed between the outer side of the motor 6 and the guide rail 1;

[0024] The top and bottom of the synchronous belt are located on both sides of the synchronous wheel and are provided with guide wheels for pressing the synchronous belt inward so that the synchronous belt is in full contact with the synchronous wheel.

[0025] In this embodiment, a proximity switch for controlling the moving distance of the multilayer circuit board 7 is installed on the guide rail 1. The proximity switch is electrically connected to the motor, so as to control the start and stop of the motor.

[0026] When in use, the motor is started, and the start of the motor drives the driving wheel, and the rotation of the driving wheel drives the synchronous belt, and the synchronous belt synchronously drives the synchronous wheel and the conveying roller, and the multi-layer circuit board can be inserted into the positioning groove and contacted with the conveying roller below. The rotating conveying roller can automatically drive the multi-layer circuit board to move. After a multi-layer circuit board moves to a distance, another multi-layer circuit board can be put in again to ensure the smoothness and continuity of the conveying;

[0027] When the multi-layer circuit board approaches the proximity switch, the motor can be turned off so that the multi-layer circuit board can stop between the positioning plates (if there is any misalignment, it can be pushed manually). At this time, the motor can be started, and the start of the motor drives the screw rod, and the rotating screw rod can drive the adjustment block to move inward. The movement of the adjustment block drives the positioning plate, so that the positioning plate moves inward along the groove until the inner side of the positioning plate contacts the end face of the multi-layer circuit board. The multi-layer circuit board can be positioned horizontally through the positioning plate, and the multi-layer circuit board can be positioned up and down and front and back through the positioning groove and the conveying roller to ensure the stability of the multi-layer circuit board, so that a stable drilling operation can be performed;

[0028] After drilling is completed, the motor can be started in reverse, thereby moving the adjustment block and the positioning plate outward through the screw rod, so that the positioning plate is moved away from both ends of the multi-layer circuit board. After losing the obstruction of the positioning plate, the motor can be started again to drive the multi-layer circuit board forward to the next workstation, and the circuit board at the rear can be moved between the positioning plates for re-positioning, which greatly increases efficiency.

[0029] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A multi-layer circuit board micro-hole drilling precision positioning device, characterized in that: The invention comprises a guide rail (1) and a multilayer circuit board (7), wherein positioning grooves (2) are arranged on both sides of the guide groove inside the guide rail (1), a plurality of conveying rollers (3) for conveying the multilayer circuit board (7) are arranged in the positioning groove (2), a conveying channel matching the width of the multilayer circuit board (7) is formed between the conveying rollers (3) and the top surface of the positioning groove (2), the multilayer circuit board (7) is arranged inside the guide rail (1), the two sides of the multilayer circuit board (7) are inserted into the conveying channel and are arranged in contact with the conveying rollers (3), a plurality of grooves (13) are arranged in the middle of the guide rail (1), positioning plates (8) are arranged in the grooves (13) opposite to each other in the transverse direction, and an adjustment mechanism for driving the positioning plate (8) to move inward or open outward is installed at one end of the positioning plate (8).

2. The multi-layer circuit board micro-hole drilling precision positioning device according to claim 1, characterized in that: The adjusting mechanism comprises a screw rod (11), a motor (12), a plurality of adjusting blocks (9), a plurality of first bearings and a fixing frame (10), wherein the adjusting blocks (9) are all mounted on one end of the positioning plate (8), the adjusting blocks (9) are staggered with the multi-layer circuit board (7), the adjusting blocks (9) are all provided with screw rod holes, the fixing frames (10) are all arranged on the outside of the adjusting blocks (9), one end of the fixing frames (10) is all mounted on the outer surface of the guide rail (1), the screw rods (11) are all threadedly connected to the screw rod holes opposite to each other in the longitudinal direction, one end of the screw rod (11) is mounted in the inner ring of the first bearing on one side, the motor (12) is mounted on the fixing frame (10), the rotating shaft of the motor (12) passes through the inner ring of the first bearing on the other side, and is fixedly connected to the other end of the screw rod (11) through a coupling.

3. The multi-layer circuit board micro-hole drilling precision positioning device according to claim 1, characterized in that: The positioning plates (8) are all arranged in a "U"-shaped structure. Both sides of the positioning plates (8) are slidably arranged in the grooves (13) and extend into the positioning grooves (2) to abut against the end faces of the multilayer circuit boards (7). The middle end of the positioning plates (8) is placed on the top surface of the guide rails (1).

4. The multi-layer circuit board micro-hole drilling precision positioning device according to claim 1, characterized in that: A second bearing is embedded in the positioning groove (2) on one side facing the conveying roller (3), and an axial hole is provided at the positioning groove (2) on the other side facing the conveying roller (3). The roller shaft at one end of the conveying roller (3) is installed in the inner ring of the second bearing, and the roller shaft at the other end of the conveying roller (3) extends to the outside through the axial hole and is installed with a synchronous wheel (4). A driving wheel is provided at the outermost side of the synchronous wheel (4), and a synchronous belt (5) is wound around the outside of the driving wheel and multiple synchronous wheels (4). A motor (6) for driving the driving wheel to rotate is installed on the outside of the driving wheel, and a fixed seat is installed between the outside of the motor (6) and the guide rail (1).

5. The multi-layer circuit board micro-hole drilling precision positioning device according to claim 1, characterized in that: A proximity switch for controlling the moving distance of the multilayer circuit board (7) is installed on the guide rail (1).

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