Flexible printed circuit board pore-forming device

Abstract

The utility model relates to the technical field of circuit board punching, and discloses a flexible printed circuit board hole forming device which comprises a rack, a lifting seat capable of ascending and descending is installed on the rack, a motor is installed on the lifting seat, a rotating rod is fixed to an output shaft of the motor, a drill bit clamp is fixed to the rotating rod, a drill bit is installed on the drill bit clamp, and a hole is formed in the drill bit clamp. A collecting box is arranged on the machine frame and located under the rotating rod, and an air supply assembly and an air injection assembly are arranged on the machine frame. When the circuit board punching device is used, the air spraying holes spray air towards the circuit board, scraps generated in the punching process can be cleaned in time, cleanliness of the surface of the circuit board is guaranteed, the phenomenon that the printing quality is affected by scrap accumulation is avoided, in addition, the air flow cools the punching position, damage to the circuit board caused by high temperature generated in the punching process is effectively avoided, and the punching quality is improved. And the quality and the stability of the circuit board are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board punching, in particular to a flexible printed circuit board hole forming device. Background Art

[0002] The flexible printed circuit board hole forming device is a device used to drill holes on a flexible printed circuit board.

[0003] A lot of debris is generated when drilling holes in a circuit board, but the drilling device in the prior art does not have the function of cleaning and collecting the circuit board. A large amount of debris will be scattered in the working area, affecting the cleanliness of the working environment, which may cause discomfort to the staff or reduce work efficiency. In addition, the accumulation of debris at the drilling position or on the surface of the circuit board may cause the drill bit to deviate or become unstable, affecting the accuracy and precision of the drilling, and further affecting the quality of the circuit board.

[0004] Therefore, it is necessary to design a flexible printed circuit board hole forming device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a flexible printed circuit board hole forming device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A flexible printed circuit board hole forming device comprises a frame, a lift seat which can be raised and lowered is installed on the frame, a motor is installed on the lift seat, a rotating rod is fixed to the output shaft of the motor, a drill fixture is fixed to the rotating rod, and a drill is installed on the drill fixture, a collection box is arranged on the frame, and the collection box is located directly below the rotating rod, and an air supply component and an air injection component are arranged on the frame.

[0008] As a preferred technical solution of the utility model, the air supply assembly includes a mounting cylinder, a bracket, a rotating shaft, a plurality of axial flow blades, gear 1 and gear 2, the mounting cylinder is fixed on a lifting seat, the bracket is fixed on the lifting seat, the rotating shaft is rotatably mounted on the bracket, an opening is provided on the bottom surface of the mounting cylinder, the rotating shaft extends through the opening to the interior of the mounting cylinder, the plurality of axial flow blades are fixed on the rotating shaft, and the plurality of axial flow blades are placed inside the mounting cylinder, the gear 1 is fixedly sleeved on the rotating shaft, the gear 2 is fixedly sleeved on the rotating rod, and the gear 1 and the gear 2 are meshed with each other.

[0009] As a preferred technical solution of the utility model, the jet assembly includes an annular jet pipe, a plurality of jet holes and a connecting pipe. The annular jet pipe is fixed on the lifting seat, and the plurality of jet holes are opened on the annular jet pipe. One end of the connecting pipe is connected to the mounting tube, and the other end is connected to the annular jet pipe.

[0010] As a preferred technical solution of the utility model, the plurality of air jet holes are evenly distributed on the annular air jet pipe, and the plurality of air jet holes are all arranged toward the collection box.

[0011] As a preferred technical solution of the utility model, the frame and the collection box are connected via a detachable structure.

[0012] As a preferred technical solution of the present utility model, the transmission ratio between gear one and gear two is greater than 1.

[0013] The utility model has the following beneficial effects:

[0014] The air jets spray gas toward the circuit board, which can clean up the debris generated during the punching process in time, ensure the cleanliness of the circuit board surface, and avoid debris accumulation affecting the printing quality. In addition, the airflow cools the punching position, effectively avoiding the high temperature generated during the punching process from damaging the circuit board, protecting the quality and stability of the circuit board. Cleaning debris and controlling temperature can ensure the punching quality of the circuit board, reduce defects caused by residual debris or high temperature, and improve the product's qualification rate and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a flexible printed circuit board hole forming device proposed by the utility model;

[0016] Figure 2 for Figure 1 A magnified view of the structure at A;

[0017] Figure 3 for Figure 1 Enlarged view of the structure at B.

[0018] In the figure: 1 frame, 2 lifting seat, 3 motor, 4 rotating rod, 5 collecting box, 61 mounting tube, 62 bracket, 63 rotating shaft, 64 axial flow blade, 65 gear 1, 66 gear 2, 71 annular jet pipe, 72 jet hole, 73 connecting pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3 A flexible printed circuit board hole forming device includes a frame 1, a lifting seat 2 that can be raised and lowered is installed on the frame 1, a motor 3 is installed on the lifting seat 2, a rotating rod 4 is fixed to the output shaft of the motor 3, a drill fixture is fixed to the rotating rod 4, and a drill is installed on the drill fixture, and a collecting box 5 is arranged on the frame 1, the frame 1 and the collecting box 5 are connected by a detachable structure, and the collecting box 5 is located directly below the rotating rod 4, and the jet action can blow the debris generated during the punching process off the circuit board, so that the debris falls into the inside of the collecting box 5, and the debris is collected, and the frame 1 and the collecting box 5 are connected by a detachable structure, which is convenient for the staff to centrally clean the debris collected in the collecting box 5;

[0021] An air supply assembly and an air injection assembly are provided on the frame 1. The air supply assembly includes a mounting cylinder 61, a bracket 62, a rotating shaft 63, a plurality of axial flow blades 64, a gear 1 65 and a gear 2 66. The mounting cylinder 61 is fixed on the lifting seat 2, the bracket 62 is fixed on the lifting seat 2, the rotating shaft 63 is rotatably mounted on the bracket 62, an opening is provided on the bottom surface of the mounting cylinder 61, the rotating shaft 63 extends through the opening to the inside of the mounting cylinder 61, a plurality of axial flow blades 64 are all fixed on the rotating shaft 63, and a plurality of axial flow blades 64 are all placed inside the mounting cylinder 61, the gear 1 65 is fixedly sleeved on the rotating shaft 63, the gear 2 66 is fixedly sleeved on the rotating rod 4, the gear 1 65 and the gear 2 66 are meshed with each other, and the transmission ratio of the gear 1 65 and the gear 2 66 is greater than 1. This design enables the gear 1 65 and the gear 2 66 to accelerate the rotation speed of the rotating rod 4, so that the plurality of axial flow blades 64 rotate rapidly The fast-rotating axial flow blades 64 enable sufficient airflow to be ejected from the plurality of jet holes 72. The jet assembly comprises an annular jet pipe 71, a plurality of jet holes 72 and a connecting pipe 73. The annular jet pipe 71 is fixed on the lifting seat 2. The plurality of jet holes 72 are all provided on the annular jet pipe 71. The plurality of jet holes 72 are evenly distributed on the annular jet pipe 71, and the plurality of jet holes 72 are all arranged toward the collecting box 5. One end of the connecting pipe 73 is connected to the mounting cylinder 61, and the other end is connected to the annular jet pipe 71. When the rotating rod 4 rotates, it can drive the rotating shaft 63 to rotate through the mutually meshing gear 1 65 and the gear 2 66. When the rotating shaft 63 rotates, it can drive the plurality of axial flow blades 64 to rotate. When the plurality of axial flow blades 64 rotate, they can perform a pumping action. Further, the gas will enter the interior of the annular jet pipe 71 through the connecting pipe 73, so that the gas is ejected through the plurality of jet holes 72.

[0022] The specific working principle of the utility model is as follows:

[0023] When the flexible printed circuit board hole forming device proposed by the utility model is in use, the motor 3 drives the rotating rod 4 to rotate, and the rotating rod 4 drives the drill bit to rotate, and the drill bit is used to punch holes in the circuit board. When the rotating rod 4 rotates, it can drive the rotating shaft 63 to rotate through the mutually meshing gear 1 65 and the gear 2 66. When the rotating shaft 63 rotates, it can drive a plurality of axial flow blades 64 to rotate. When the plurality of axial flow blades 64 rotate, they can perform a pumping action. Further, the gas will enter the interior of the annular jet pipe 71 through the connecting pipe 73, so that the gas is ejected through a plurality of jet holes 72. During the punching process, the plurality of jet holes 72 can spray gas toward the circuit board. The jet action can not only blow off the debris generated during the punching process from the circuit board, so that the debris falls into the interior of the collection box 5, but also the airflow can cool down the punching position of the circuit board, so as to avoid the high temperature generated during the punching process from damaging the circuit board, and thus protect the circuit board.

[0024] The rack 1 and the collection box 5 are connected by a detachable structure, which facilitates the staff to centrally clean the debris collected in the collection box 5. The specific connection method between the rack 1 and the collection box 5 is a prior art, which is not an innovative part of the technical solution, is not shown in the figure, and will not be described in detail here;

[0025] In addition, the utility model also proposes a processing method for the circuit board after punching. The existing tool hole design has the problem of no support for the PI between coppers, which leads to depression during the Punch pin operation after punching, which may cause tearing and affect the deviation of the external dimensions, thereby affecting the product quality and process accuracy. To solve the above problems, a solution of leaving a 0.15mm*0.2mm copper column at the edge of the tool hole by etching is proposed to provide tensile support. At the same time, CVL is used for external expansion design to protect the exposed circuit and reduce the risk of conductor peeling caused by friction. To ensure the effectiveness of the improvement measures, the operation process is adjusted, and CVL is first bonded and then CCD punching is performed. Such an adjustment not only avoids the problem of external dimension deviation caused by depression and tearing of the tool hole during the Punch operation, but also effectively protects the exposed circuit and improves the friction and peeling of the conductor. Through the above improvement measures and operation process adjustments, the stability and reliability of the tool hole area are improved, the problems that may occur in the product manufacturing process are improved, the product quality and process accuracy are guaranteed, and the production efficiency and production cost-effectiveness are also improved.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flexible printed circuit board hole forming device, comprising a frame (1), a lifting seat (2) that can be raised and lowered is installed on the frame (1), a motor (3) is installed on the lifting seat (2), a rotating rod (4) is fixed to the output shaft of the motor (3), a drill fixture is fixed to the rotating rod (4), and a drill is installed on the drill fixture, characterized in that: The frame (1) is provided with a collection box (5), and the collection box (5) is located directly below the rotating rod (4); the frame (1) is provided with an air supply component and an air injection component.

2. A flexible printed circuit board hole forming device according to claim 1, characterized in that: The air supply assembly comprises a mounting cylinder (61), a bracket (62), a rotating shaft (63), a plurality of axial flow blades (64), a gear 1 (65) and a gear 2 (66); the mounting cylinder (61) is fixed on the lifting seat (2); the bracket (62) is fixed on the lifting seat (2); the rotating shaft (63) is rotatably mounted on the bracket (62); an opening is provided on the bottom surface of the mounting cylinder (61); the rotating shaft (63) passes through the opening and extends to the inside of the mounting cylinder (61); the plurality of axial flow blades (64) are all fixed on the rotating shaft (63); and the plurality of axial flow blades (64) are all placed inside the mounting cylinder (61); the gear 1 (65) is fixedly sleeved on the rotating shaft (63); the gear 2 (66) is fixedly sleeved on the rotating rod (4); and the gear 1 (65) and the gear 2 (66) are meshed with each other.

3. A flexible printed circuit board hole forming device according to claim 2, characterized in that: The jet assembly comprises an annular jet pipe (71), a plurality of jet holes (72) and a connecting pipe (73); the annular jet pipe (71) is fixed on the lifting seat (2); the plurality of jet holes (72) are all provided on the annular jet pipe (71); one end of the connecting pipe (73) is connected to the mounting tube (61), and the other end is connected to the annular jet pipe (71).

4. A flexible printed circuit board hole forming device according to claim 3, characterized in that: The plurality of air jet holes (72) are evenly distributed on the annular air jet pipe (71), and the plurality of air jet holes (72) are all arranged toward the collection box (5).

5. A flexible printed circuit board hole forming device according to claim 1, characterized in that: The frame (1) and the collection box (5) are connected via a detachable structure.

6. A flexible printed circuit board hole forming device according to claim 2, characterized in that: The transmission ratio between gear one (65) and gear two (66) is greater than 1.

Images