Automatic positioning and punching device for PCB (printed circuit board)

Abstract

The utility model relates to the technical field of PCB production and processing, in particular to an automatic positioning and punching device for a PCB. An automatic positioning and punching device for a PCB comprises a PCB conveying belt, a base is arranged at the bottom of the PCB conveying belt, a PLC is arranged in the base and electrically connected with the PCB conveying belt, a stand column is fixedly installed on one side of the top face of the base, a cross beam is arranged above the PCB conveying belt, and the cross beam is fixedly installed on one side of the top face of the base. One end of the cross beam is in sliding connection with the side face of the stand column through a lifting mechanism, a hydraulic cylinder is fixedly installed on the top face of the cross beam, a piston rod of the hydraulic cylinder penetrates through the cross beam and then is fixedly connected with a punching drill bit, the hydraulic cylinder and the punching drill bit are both electrically connected with a PLC, and a positioning mechanism is arranged on the side face of the punching drill bit. According to the utility model, the labor intensity of workers is greatly reduced, the size precision of holes on the PCB is ensured, the processing efficiency can be effectively improved, and the production cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board production and processing, and in particular to an automatic positioning and punching device for a PCB board. Background Art

[0002] PCB is the abbreviation of printed circuit board. It is an indispensable electronic component in the electrical equipment used in our modern life. During the assembly and use of PCB, it is necessary to realize the installation and connection of electronic components on it and the fixed installation of itself. Therefore, holes need to be punched on PCB. If the punching position is not accurate, it will affect the actual use of PCB board. Traditionally, holes are punched directly by hand through bench drill, but the labor intensity of workers is high, the processing efficiency is low, and the dimensional accuracy of the holes after processing is difficult to guarantee, which will eventually lead to high production costs. Utility Model Content

[0003] The utility model aims to provide a device for automatically positioning and punching holes in a PCB board, so as to solve the problem of poor precision in manual punching of PCB boards.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A PCB plate automatic positioning and punching device comprises a PCB conveyor belt, a base is arranged at the bottom of the PCB conveyor belt, a PLC controller is arranged inside the base, the PLC controller is electrically connected to the PCB conveyor belt, a column is fixedly installed on one side of the top surface of the base, a crossbeam is arranged above the PCB conveyor belt, one end of the crossbeam is slidably connected to the side of the column through a lifting mechanism, a hydraulic cylinder is fixedly installed on the top surface of the crossbeam, a piston rod of the hydraulic cylinder passes through the crossbeam and is fixedly connected to a punching drill bit, the hydraulic cylinder and the punching drill bit are both electrically connected to the PLC controller, and a positioning mechanism is arranged on the side of the punching drill bit.

[0006] A further technical solution is that the lifting mechanism includes a driving motor, a movable groove is provided on the side of the column, the axis of the movable groove is perpendicular to the horizontal plane, both ends of the movable groove are closed ends, the driving motor is fixedly installed in the movable groove, the driving motor is electrically connected to the PLC controller, and a lifting screw is fixedly connected to the output shaft of the driving motor, and one end of the crossbeam is inserted into the movable groove and threadedly connected to the lifting screw.

[0007] A further technical solution is that the positioning mechanism includes a baffle rod, the top of the baffle rod is fixedly connected to the bottom surface of the cross beam, a positioning frame is provided at the bottom, the positioning frame includes a fixed plate, side plates are provided on both sides of the fixed plate, the end of the side plate away from the drilling bit is fixedly connected to the fixed plate, and the top surface of the fixed plate is fixedly connected to the bottom end of the baffle rod.

[0008] A further technical solution is that a buffer device is arranged between the cross beam and the baffle rod, the buffer device includes a fixed block, a matching hole is arranged on the bottom surface of the fixed block, and the top of the baffle rod is inserted into the matching hole and connected to the bottom of the matching hole through a spring.

[0009] A further technical solution is that a contact sensor is arranged on the inner side of the positioning frame, and the contact sensor is electrically connected to the PLC controller.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model arranges a punching drill and a positioning frame above the PCB board conveyor belt, which can automatically complete accurate positioning and punching under the operation of a PLC controller, thereby greatly reducing the labor intensity of the staff, while ensuring the dimensional accuracy of the holes on the PCB board, effectively improving the processing efficiency, and thus reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of the utility model;

[0013] Figure 2 It is a side sectional view of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the fixing frame in the utility model;

[0015] Figure 4 It is a cross-sectional view of the fixing block in the utility model.

[0016] Icons: 1-base, 2-column, 3-crossbeam, 4-movable slot, 5-drive motor, 6-lifting screw, 7-hydraulic cylinder, 8-drill bit, 9-stop rod, 10-fixed block, 11-matching hole, 12-spring, 13-positioning frame, 131-fixed plate, 132-side plate, 14-PCB board, 15-PCB board conveyor belt. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Figures 1 to 4 This is an embodiment of the utility model.

[0019] Example 1

[0020] A PCB plate automatic positioning and punching device comprises a PCB conveyor belt 15, a base 1 is arranged at the bottom of the PCB conveyor belt 15, a PLC controller is arranged inside the base 1, the PLC controller is electrically connected to the PCB conveyor belt 15, a column 2 is fixedly installed on one side of the top surface of the base 1, a crossbeam 3 is arranged above the PCB conveyor belt 15, one end of the crossbeam 3 is slidably connected to the side of the column 2 through a lifting mechanism, a hydraulic cylinder 7 is fixedly installed on the top surface of the crossbeam 3, a piston rod of the hydraulic cylinder 7 passes through the crossbeam 3 and is fixedly connected to a punching drill 8, the hydraulic cylinder 7 and the punching drill 8 are both electrically connected to the PLC controller, and a positioning mechanism is provided on the side of the punching drill 8. The PLC controller can accurately control the operation of the PCB board conveyor belt 15 and the punch drill 8. When the PCB board 14 is conveyed to the bottom of the punch drill 8, the PCB board conveyor belt 15 stops working, and the punch drill 8 starts working and moves down to complete the drilling work of the PCB board 14. After the drilling work is completed, the punch drill 8 returns to its original position, and the PCB board conveyor belt 15 resumes working to continue conveying the PCB board 14.

[0021] Example 2

[0022] On the basis of Example 1, the lifting mechanism includes a driving motor 5, a movable groove 4 is provided on the side of the column 2, the axis of the movable groove 4 is perpendicular to the horizontal plane, both ends of the movable groove 4 are closed ends, the driving motor 5 is fixedly installed in the movable groove 4, the driving motor 5 is electrically connected to the PLC controller, a lifting screw 6 is fixedly connected to the output shaft of the driving motor 5, and one end of the crossbeam 3 is inserted into the movable groove 4 and threadedly connected to the lifting screw 6. Under the action of the movable groove 4 and the driving motor 5, the crossbeam 3 can only move along the movable groove 4 to complete the control of the position of the drilling drill 8 and the positioning mechanism.

[0023] Example 3

[0024] On the basis of Example 1, the positioning mechanism includes a stopper 9, the top of the stopper 9 is fixedly connected to the bottom surface of the crossbeam 3, and a positioning frame 13 is provided at the bottom, the positioning frame 13 includes a fixing plate 131, and side plates 132 are provided on both sides of the fixing plate 131, and one end of the side plate 132 away from the punching drill 8 is fixedly connected to the fixing plate 131, and the top surface of the fixing plate 131 is fixedly connected to the bottom end of the stopper 9. The positioning frame 13 can cooperate with the end of the PCB board 14, so that the PCB board 14 can be accurately positioned before drilling, ensuring that the punching position on the PCB board 14 is accurate.

[0025] Example 4

[0026] On the basis of Example 1, a buffer device is provided between the cross beam 3 and the stopper 9, and the buffer device comprises a fixing block 10, a matching hole 11 is provided on the bottom surface of the fixing block 10, and the top of the stopper 9 is inserted into the matching hole 11 and connected to the bottom of the matching hole 11 through a spring 12. When the cross beam 3 is excessively lowered during drilling, the buffer device can prevent the stopper 9 from crushing the PCB conveyor belt 15.

[0027] Example 5

[0028] On the basis of Example 1, a contact sensor is provided on the inner side of the positioning frame 13, and the contact sensor is electrically connected to the PLC controller. When the PCB board 14 cooperates with the positioning frame to trigger the contact sensor, the contact sensor sends a signal to the PLC controller, and then the PLC controller can immediately control the drilling drill 8 to move down to perform drilling work, which can effectively improve work efficiency.

[0029] Working principle: when in use, the PLC controller controls the driving motor 5 to move the crossbeam 3 downward until the positioning frame 13 moves down to the PCB board conveyor belt 15 but will not affect the normal operation of the PCB board conveyor belt 15. The PCB board 14 conveyed on the PCB board conveyor belt 15 cooperates with the positioning frame 13 to trigger the contact sensor. The contact sensor sends a signal to the PLC controller, and then the PLC controller controls the hydraulic cylinder 7 and the punching drill 8 to work, the PCB board conveyor belt 15 stops working, and the hydraulic cylinder 7 will push the punching drill 8 to move downward to complete the drilling work of the PCB board 14. After the drilling work is completed, the PLC controller controls the crossbeam 3 and the hydraulic cylinder 7 to return to the initial position, and the PCB board conveyor belt 15 restarts to continue to convey the PCB board 14. After a certain period of time, the PCB board 14 that has completed the drilling passes the stop bar, and then the PLC controller controls the driving motor 5 to move the crossbeam 3 downward again until the subsequent PCB board 14 that has not been punched is matched with the positioning frame 13, and then the drilling work is repeated to complete the automatic positioning and punching of the PCB board 14.

[0030] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the drawings and claims disclosed herein, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A PCB plate automatic positioning and punching device, comprising a PCB plate conveyor belt (15), characterized in that: A base (1) is arranged at the bottom of the PCB conveyor belt (15), a PLC controller is arranged inside the base (1), the PLC controller is electrically connected to the PCB conveyor belt (15), a column (2) is fixedly installed on one side of the top surface of the base (1), a crossbeam (3) is arranged above the PCB conveyor belt (15), one end of the crossbeam (3) is slidably connected to the side of the column (2) through a lifting mechanism, a hydraulic cylinder (7) is fixedly installed on the top surface of the crossbeam (3), a piston rod of the hydraulic cylinder (7) passes through the crossbeam (3) and is fixedly connected to a drilling head (8), the hydraulic cylinder (7) and the drilling head (8) are both electrically connected to the PLC controller, and a positioning mechanism is provided on the side of the drilling head (8).

2. The PCB plate automatic positioning and punching device according to claim 1, characterized in that: The lifting mechanism comprises a driving motor (5), a movable groove (4) is provided on the side of the column (2), the axis of the movable groove (4) is perpendicular to the horizontal plane, both ends of the movable groove (4) are closed ends, the driving motor (5) is fixedly installed in the movable groove (4), the driving motor (5) is electrically connected to the PLC controller, a lifting screw rod (6) is fixedly connected to the output shaft of the driving motor (5), and one end of the crossbeam (3) is inserted into the movable groove (4) and is threadedly connected to the lifting screw rod (6).

3. The PCB plate automatic positioning and punching device according to claim 1, characterized in that: The positioning mechanism comprises a blocking rod (9), the top of the blocking rod (9) is fixedly connected to the bottom surface of the crossbeam (3), and a positioning frame (13) is provided at the bottom, the positioning frame (13) comprises a fixing plate (131), and side plates (132) are provided on both sides of the fixing plate (131), one end of the side plate (132) away from the drilling bit (8) is fixedly connected to the fixing plate (131), and the top surface of the fixing plate (131) is fixedly connected to the bottom end of the blocking rod (9).

4. The automatic positioning and punching device for PCB board according to claim 3, characterized in that: A buffer device is provided between the cross beam (3) and the stop rod (9), the buffer device comprising a fixing block (10), a matching hole (11) being provided on the bottom surface of the fixing block (10), and the top of the stop rod (9) is connected to the bottom of the matching hole (11) via a spring (12) after being inserted into the matching hole (11).

5. The PCB plate automatic positioning and punching device according to claim 3, characterized in that: A contact sensor is arranged on the inner side surface of the positioning frame (13), and the contact sensor is electrically connected to the PLC controller.

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