A drilling machine for flexible circuit board production

By designing a drilling machine for flexible circuit board production, using a variety of innovative components and structures, the fixity and accuracy problems of traditional drilling machines during drilling are solved, and efficient and accurate drilling of flexible circuit boards is achieved.

CN222712351UActive Publication Date: 2025-04-04SHENZHEN HENGTAI ELECTRONICS CO LTD
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Patent Information

Application Number
CN202421298208.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-04-04
Estimated Expiration
2034-06-07

AI Technical Summary

Technical Problem

When traditional drilling machines drill holes on flexible circuit boards, the fixture structure design is simple, and the clamping force is difficult to accurately control, which can easily lead to deformation of the flexible circuit board and dents on the outer wall, affecting the quality of the hole.

Method used

A drilling machine for the production of flexible circuit boards is designed, using supporting frames, fixed seats, limit rods, ball screws, rolling nut seats, cylinders and servo motors, and the stable fixation and precise drilling of the flexible circuit board are achieved through vacuum pumps and rubber suction cups.

Benefits of technology

It improves the fixity and hole drilling accuracy of the flexible circuit board, avoids deformation and outer wall dents, and improves the hole drilling efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222712351U_ABST
Patent Text Reader

Abstract

The utility model discloses a drilling machine for the production of flexible circuit boards, including a support frame, the front and rear ends of the top of the support frame are fixedly connected to a fixing seat, two limit rods are fixedly connected between the two fixing seats, a ball screw is rotatably connected between the two fixing seats, close to the center position of the two limit rods, and a rolling nut seat is installed on the outer wall of the ball screw; a driving mechanism is installed at the front end of one of the fixing seats, a cylinder is installed at the bottom of the rolling nut seat, a drilling mechanism is installed at the bottom end of the cylinder piston, and a fixing mechanism is installed on one side of the top of the support frame. The utility model is designed with a fixing mechanism, and the drilling machine can fix the flexible circuit board by sucking it with multiple suction cups, and the multiple suction cups are made of rubber material, which has a good elastic effect, not only preventing dents from being caused on the surface of the flexible circuit board, but also having strong fixation, which is convenient for the drilling mechanism to drill holes.
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Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit board processing, in particular to a drilling machine used for the production of flexible circuit boards. Background Art

[0002] Flexible circuit board, also known as soft circuit board, flexible circuit board, is a kind of highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the substrate. It has the characteristics of high wiring density, light weight, thin thickness and good bending. This kind of circuit can be bent at will and is easy to install, breaking through the traditional interconnection technology. In the structure of flexible circuit, the materials are insulating film, conductor and adhesive. When processing flexible circuit board, drilling machine will be used to facilitate drilling of flexible circuit board.

[0003] Traditionally, when drilling holes in a flexible circuit board, the flexible circuit board is usually fixed by a clamp and then drilled by a drilling machine. However, the existing clamp structure design is relatively simple, and the flexible circuit board is often clamped and fixed by rotating a threaded rod to push a clamp block. Due to inaccurate control of the clamping force, excessive force may be used to clamp and deform the flexible circuit board, and dents may be generated on the outer wall of the flexible circuit board, which not only affects the drilling of the flexible circuit board, but may also affect its quality.

[0004] Therefore, it is urgent to provide a drilling machine for flexible circuit board production to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that when punching holes in a flexible circuit board in the traditional way, the flexible circuit board is usually fixed by a clamp and then holes are punched in it by a drilling machine. However, the existing clamp structure design is relatively simple, and the flexible circuit board is often clamped and fixed by rotating a threaded rod to push a clamp block. Since the clamping force is not accurately controlled, excessive force may be used to clamp and deform the flexible circuit board, and dents may be generated on the outer wall of the flexible circuit board, which not only affects the punching of the flexible circuit board, but may also affect its quality.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a drilling machine for the production of flexible circuit boards, including a support frame, the front and rear ends of the top of the support frame are fixedly connected to a fixing seat, two limiting rods are fixedly connected between the two fixing seats, and a ball screw is rotatably connected between the two fixing seats near the center position of the two limiting rods, and a rolling nut seat is installed on the outer wall of the ball screw;

[0007] A driving mechanism is installed at the front end of one of the fixed seats, a cylinder is installed at the bottom of the rolling nut seat, a drilling mechanism is installed at the bottom end of the cylinder piston, a storage seat is fixedly connected to the top center of the support frame, support pads are fixedly connected to the four top corners of the storage seat, and a fixing mechanism is installed on one side of the top of the support frame.

[0008] The utility model is further configured as follows: a plurality of discharge holes are provided at a position near the storage seat on the top of the support frame.

[0009] Through the above technical solution: it is convenient for the drilling mechanism to discharge the waste chips generated by drilling holes in the flexible circuit board, so as to prevent the accumulation of waste chips from affecting the drilling of the flexible circuit board.

[0010] The utility model is further configured as follows: the rolling nut seat is slidably connected with two limit rods.

[0011] Through the above technical solution: the sliding of the two limit rods can provide stability for the sliding of the rolling nut seat, thereby improving the stability of the drilling mechanism and further improving the accuracy of drilling holes in the flexible circuit board.

[0012] The utility model is further configured as follows: the driving mechanism includes a first annular mounting frame, the first annular mounting frame is fixedly connected to the front end position of one of the fixed seats, a first servo motor is installed at the front end of the first annular mounting frame, and one end of the output shaft of the first servo motor is fixedly connected to one end of the ball screw.

[0013] Through the above technical solution: when it is necessary to punch multiple holes in the flexible circuit board, the first servo motor starts working, and the first servo motor drives the ball screw to rotate by rotating the output shaft. The rotation of the ball screw drives the rolling nut seat to move, and the movement of the rolling nut seat drives the cylinder to move, so that the cylinder drives the drill bit to move, thereby realizing one-time punching of multiple holes in the flexible circuit board, and the punching efficiency is greatly improved.

[0014] The utility model is further configured as follows: the drilling mechanism includes a second annular mounting frame, the second annular mounting frame is fixedly connected to the bottom end of the cylinder piston, a second servo motor is installed at the bottom of the second annular mounting frame, and a drill bit is fixedly connected to the bottom end of the output shaft of the second servo motor.

[0015] Through the above technical solution: when it is necessary to punch holes in the flexible circuit board, the second servo motor starts working, and the second servo motor drives the drill bit to rotate at high speed through the output shaft. At the same time, the cylinder starts working, and the cylinder pushes the drill bit through the piston, thereby realizing punching of the flexible circuit board.

[0016] The utility model is further configured as follows: the fixing mechanism includes a fixing frame, the fixing frame is fixedly connected to one side of the top of the support frame, a vacuum pump is installed on the top of the fixing frame, an air pipe is installed between one end of the vacuum pump and the storage seat, and a plurality of suction cups are fixedly connected to the top of the storage seat.

[0017] Through the above technical solution: when the flexible circuit board is fixed, the staff puts the flexible circuit board on the storage seat so that multiple support pads support it, and the vacuum pump starts to work. The vacuum pump evacuates the cavity in the storage seat through the air pipe, so that the pressure in the storage seat becomes smaller, so that the flexible circuit board is sucked by the suction cup, which not only has strong fixation, but also has the effect of protecting the flexible circuit board, and is convenient for the drilling mechanism to drill holes in it.

[0018] The utility model is further configured as follows: the plurality of suction cups are all made of rubber material.

[0019] The above technical solution has a good elastic effect and prevents dents from being caused on the surface of the flexible circuit board.

[0020] The utility model is further configured as follows: a cavity is provided in the storage seat, and one end of the air pipe is inserted into the cavity.

[0021] Through the above technical solution: the air pipe can quickly extract the air in the cavity of the storage seat, so as to facilitate the adsorption and fixation of the flexible circuit board.

[0022] The beneficial effects of the utility model are as follows:

[0023] 1. The utility model is designed with a fixing mechanism, and the drilling machine can fix the flexible circuit board by multiple suction cups, and the multiple suction cups are made of rubber material, which has a good elastic effect, not only preventing dents from being caused on the surface of the flexible circuit board, but also having a strong fixation, which is convenient for the drilling mechanism to drill holes therein;

[0024] 2. The utility model is designed with a driving mechanism and a drilling mechanism, and the driving mechanism drives the ball screw to drive the rolling nut seat to move, so that it is convenient to punch multiple holes on the surface of the flexible circuit board at one time, and the drilling efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the appearance diagram of the utility model;

[0026] Figure 2 It is the front view of the utility model;

[0027] Figure 3 It is a cross-sectional view of the utility model;

[0028] Figure 4 for Figure 1 A partial enlarged view of point A in the middle.

[0029] In the figure: 1. support frame; 2. fixed seat; 3. limit rod; 4. ball screw; 5. rolling nut seat; 6. driving mechanism; 601. first annular mounting frame; 602. first servo motor; 7. cylinder; 8. drilling mechanism; 801. second annular mounting frame; 802. second servo motor; 803. drill bit; 9. storage seat; 10. support pad; 11. fixing mechanism; 1101. fixing frame; 1102. vacuum pump; 1103. air pipe; 1104. suction cup. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0031] See also Figure 1-Figure 4 , a drilling machine for the production of flexible circuit boards, including a support frame 1, a plurality of discharge holes are opened at the top of the support frame 1 near the storage seat 9, which is convenient for the drilling mechanism 8 to discharge the waste generated by drilling the flexible circuit board to prevent the accumulation of waste from affecting the drilling of the flexible circuit board, the front and rear ends of the top of the support frame 1 are fixedly connected with a fixed seat 2, two limit rods 3 are fixedly connected between the two fixed seats 2, and a ball screw 4 is rotatably connected between the two fixed seats 2 near the center of the two limit rods 3, and a rolling nut seat 5 is installed on the outer wall of the ball screw 4, and the rolling nut seat 5 is slidably connected to the two limit rods 3. The sliding of the two limit rods 3 can provide the stability of the sliding of the rolling nut seat 5, thereby improving the stability of the drilling mechanism 8, and then improving the accuracy of drilling the flexible circuit board, and a cylinder 7 is installed at the bottom of the rolling nut seat 5, the top center of the support frame 1 is fixedly connected with a storage seat 9, and the top four corners of the storage seat 9 are fixedly connected with support pads 10;

[0032] like Figure 3As shown, a driving mechanism 6 is installed at the front end of one of the fixing seats 2, and the driving mechanism 6 includes a first annular mounting frame 601, and the first annular mounting frame 601 is fixedly connected to the front end position of one of the fixing seats 2. A first servo motor 602 is installed at the front end of the first annular mounting frame 601, and one end of the output shaft of the first servo motor 602 is fixedly connected to one end of the ball screw 4. When it is necessary to punch multiple holes in the flexible circuit board, the first servo motor 602 starts to work at this time, and the first servo motor 602 drives the ball screw 4 to rotate by rotating the output shaft, and the ball screw 4 rotates to drive the rolling nut seat 5 to move, and the rolling nut seat 5 moves to drive the cylinder 7 to move, so that the cylinder 7 drives the drill bit 803 to move, thereby realizing one-time punching of multiple holes in the flexible circuit board, and the punching efficiency is greatly improved;

[0033] like Figure 4 As shown, a drilling mechanism 8 is installed at the bottom end of the piston of the cylinder 7, and the drilling mechanism 8 includes a second annular mounting frame 801, which is fixedly connected to the bottom end of the piston of the cylinder 7, and a second servo motor 802 is installed at the bottom of the second annular mounting frame 801. A drill bit 803 is fixedly connected to the bottom end of the output shaft of the second servo motor 802. When it is necessary to punch holes in the flexible circuit board, the second servo motor 802 starts to work, and the second servo motor 802 drives the drill bit 803 to rotate at a high speed through the rotation of the output shaft. At the same time, the cylinder 7 starts to work, and the cylinder 7 pushes the drill bit 803 through the piston, thereby realizing the punching of the flexible circuit board;

[0034] like Figure 2 and 3 As shown, a fixing mechanism 11 is installed on one side of the top of the support frame 1, and the fixing mechanism 11 includes a fixing frame 1101, and the fixing frame 1101 is fixedly connected to one side of the top of the support frame 1. A vacuum pump 1102 is installed on the top of the fixing frame 1101, and an air pipe 1103 is installed between one end of the vacuum pump 1102 and the storage seat 9. A plurality of suction cups 1104 are fixedly connected to the top of the storage seat 9. When the flexible circuit board is fixed, the staff puts the flexible circuit board on the storage seat 9 so that the plurality of support pads 10 support it, and the vacuum pump 1102 starts to work. The vacuum pump 1102 is connected to the storage seat 9 through the air pipe. 1103 evacuates the cavity in the storage seat 9 to reduce the pressure in the storage seat 9, so that the flexible circuit board is sucked by the suction cup 1104, which not only has strong fixation, but also has a protective effect on the flexible circuit board and is convenient for the drilling mechanism 8 to punch holes in it. The multiple suction cups 1104 are all made of rubber material and have a good elastic effect, which prevents dents on the surface of the flexible circuit board. A cavity is provided in the storage seat 9, and one end of the air pipe 1103 is inserted into the cavity. The air pipe 1103 can quickly evacuate the air in the cavity in the storage seat 9, thereby facilitating the adsorption and fixation of the flexible circuit board.

[0035] When the utility model is in use, the staff places the flexible circuit board on the storage seat 9 so that the multiple support pads 10 support it, and the vacuum pump 1102 starts to work. The vacuum pump 1102 evacuates the cavity in the storage seat 9 through the air pipe 1103, so that the pressure in the storage seat 9 becomes smaller, so that the flexible circuit board is adsorbed and fixed by the suction cup 1104. At this time, the second servo motor 802 starts to work, and the second servo motor 802 drives the drill bit 803 to rotate at high speed through the output shaft rotation. At the same time, the cylinder 7 starts to work, and the cylinder 7 pushes the drill bit 803 through the piston, thereby realizing the drilling of holes in the flexible circuit board. At the same time, the first servo motor 602 starts to work, and the first servo motor 602 drives the ball screw 4 to rotate through the output shaft rotation. The ball screw 4 rotates to drive the rolling nut seat 5 to move, and the rolling nut seat 5 moves to drive the drill bit 803 to move, thereby realizing the drilling of multiple holes in the flexible circuit board at one time, and the waste chips generated by drilling the flexible circuit board can be discharged through the multiple discharge holes on the top of the support frame 1.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drilling machine for producing flexible circuit boards, comprising a support frame (1), characterized in that: The front and rear ends of the top of the support frame (1) are fixedly connected to a fixing seat (2), two limiting rods (3) are fixedly connected between the two fixing seats (2), and a ball screw (4) is rotatably connected between the two fixing seats (2) near the center of the two limiting rods (3), and a rolling nut seat (5) is installed on the outer wall of the ball screw (4); A driving mechanism (6) is installed at the front end of one of the fixing seats (2), a cylinder (7) is installed at the bottom of the rolling nut seat (5), a drilling mechanism (8) is installed at the bottom end of the piston of the cylinder (7), a storage seat (9) is fixedly connected to the center of the top of the support frame (1), support pads (10) are fixedly connected to the four corners of the top of the storage seat (9), and a fixing mechanism (11) is installed on one side of the top of the support frame (1).

2. A drilling machine for flexible circuit board production according to claim 1, characterized in that: A plurality of discharge holes are provided at the top of the support frame (1) near the storage seat (9).

3. The drilling machine for flexible circuit board production according to claim 1, characterized in that: The rolling nut seat (5) is slidably connected to the two limiting rods (3).

4. The drilling machine for flexible circuit board production according to claim 1, characterized in that: The driving mechanism (6) comprises a first annular mounting frame (601), the first annular mounting frame (601) being fixedly connected to the front end of one of the fixing seats (2), a first servo motor (602) being installed at the front end of the first annular mounting frame (601), and one end of the output shaft of the first servo motor (602) being fixedly connected to one end of the ball screw (4).

5. The drilling machine for flexible circuit board production according to claim 1, characterized in that: The drilling mechanism (8) comprises a second annular mounting frame (801), the second annular mounting frame (801) being fixedly connected to the bottom end of the piston of the cylinder (7), a second servo motor (802) being installed at the bottom of the second annular mounting frame (801), and a drill bit (803) being fixedly connected to the bottom end of the output shaft of the second servo motor (802).

6. The drilling machine for flexible circuit board production according to claim 1, characterized in that: The fixing mechanism (11) comprises a fixing frame (1101), the fixing frame (1101) being fixedly connected to one side of the top of the support frame (1), a vacuum pump (1102) being installed on the top of the fixing frame (1101), an air pipe (1103) being installed between one end of the vacuum pump (1102) and the storage seat (9), and a plurality of suction cups (1104) being fixedly connected to the top of the storage seat (9).

7. A drilling machine for flexible circuit board production according to claim 6, characterized in that: The plurality of suction cups (1104) are all made of rubber material.

8. The drilling machine for flexible circuit board production according to claim 6, characterized in that: The storage seat (9) is provided with a cavity, and one end of the air pipe (1103) is inserted into the cavity.