Printed circuit board surface treatment device

Abstract

The invention discloses a printed circuit board surface treatment device, and belongs to the technical field of printed circuit boards, the printed circuit board surface treatment device comprises a mounting base, a vertical side plate is fixedly mounted at the top of the mounting base, a conveying roller is rotatably mounted on the inner wall of the vertical side plate, and one end of the conveying roller is fixedly connected with an output shaft of a built-in motor of the vertical side plate; a limiting sliding groove is formed in the mounting base, a clamping and positioning assembly is mounted in the limiting sliding groove, the clamping and positioning assembly is used for clamping and positioning a circuit board body, an extension connecting block and a U-shaped mounting frame are fixedly mounted at the top of the vertical side plate, and a transverse mounting groove is formed in the extension connecting block; according to the circuit board body polishing device, accurate clamping and positioning of circuit board bodies of different sizes are achieved, the stability in the treatment process is ensured, leveling of the circuit board bodies is achieved, the influence of bending of the circuit board bodies on the polishing treatment effect is effectively avoided, and meanwhile the treatment requirements of different areas and different degrees of the surfaces of the circuit board bodies can be met.

Description

Technical Field

[0001] The invention relates to the technical field of printed circuit boards, and in particular to a surface treatment device for a printed circuit board. Background Art

[0002] Printed circuit boards, also known as printed circuit boards or printed circuit boards, are an indispensable basic component in modern electronic devices. It is a plate-shaped electronic product made using electronic printing technology. It is usually made of insulating materials, and metal copper foil lines are formed on it through a specific process. These lines are designed to connect and conduct various electronic components to achieve electrical connections and mechanical support for various components in electronic equipment. Printed circuit boards play an important role in signal transmission, power supply and supporting components in electronic equipment. They are widely used in various fields from household appliances to aerospace equipment. In order to remove hole burrs and board stains, improve the flatness of PCBs, ensure the correct installation of components and good electrical contact, and improve welding quality, ensure signal integrity, reduce signal loss and distortion, and improve the reliability and performance of PCBs, surface treatment devices are needed to polish printed circuit boards.

[0003] However, when the existing surface treatment device is used to polish the surface of the printed circuit board, it is inconvenient to position and fix the circuit boards of different sizes. The stability during the treatment process is not high and the treatment effect is not good. At the same time, the bending of the circuit board itself will also affect the surface treatment effect. The treatment process is prone to omissions and there are certain disadvantages in the use process.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] To this end, the present invention provides a printed circuit board surface treatment device to solve the above-mentioned problems.

[0006] The present invention provides the following technical solution: a printed circuit board surface processing device comprises a mounting base, the vertical side plate is fixedly mounted on the top of the mounting base, the conveying roller is rotatably mounted on the inner wall of the vertical side plate, one end of the conveying roller is fixedly connected to the output shaft of the built-in motor of the vertical side plate, a limiting slide groove is provided on the mounting base, the clamping and positioning component is installed in the limiting slide groove, the clamping and positioning component is used to clamp and position the circuit board body, the extended connecting block and the U-shaped mounting frame are fixedly mounted on the top of the vertical side plate, a horizontal mounting groove is provided on the extended connecting block, the push-type abutment and leveling component is installed in the horizontal mounting groove, the push-type abutment and leveling component is slidably connected with the clamping and positioning component, and one end of the push-type abutment and leveling component is located below the circuit board body, the connecting top plate is fixedly mounted on the U-shaped mounting frame, the lifting and rotating grinding processing component is installed on the connecting top plate, and the lifting and rotating grinding processing component is located above the circuit board body.

[0007] As a preferred scheme of the present invention, in order to control the servo motor to turn on so that the bidirectional lead screw can rotate in the limiting slide groove through the first rotating joint, the clamping and positioning assembly includes the servo motor and the bidirectional lead screw, the servo motor is fixed on the inner wall of one end of the limiting slide groove, the bidirectional lead screw is rotatably installed on the inner wall of the other end of the limiting slide groove through the first rotating joint, and one end of the bidirectional lead screw is fixedly connected to the output shaft of the servo motor.

[0008] As a preferred scheme of the present invention, in order to control the rotation of the bidirectional threaded rod so that the two clamping slide blocks can slide in opposite directions in the limiting slide groove, the first clamping seat and the second clamping seat are driven to approach or move away from each other through the square connecting column, the clamping slide block is threadedly mounted on the bidirectional lead screw, the clamping slide block is slidably engaged in the limiting slide groove, and there are two clamping slide blocks, the two clamping slide blocks are respectively located at the reverse thread ends of the bidirectional lead screw, the first clamping seat and the second clamping seat are respectively mounted on the two clamping slide blocks, and the first clamping seat and the second clamping seat are respectively fixedly connected to the two clamping slide blocks through the square connecting column.

[0009] As a preferred solution of the present invention, in order to control the stepper motor to turn on so that the driving threaded rod can rotate in the transverse mounting groove through the second rotating joint, the push-type abutment leveling assembly includes the stepper motor and the driving threaded rod, the stepper motor is fixed on the inner wall of one end of the transverse mounting groove, the driving threaded rod is rotatably installed on the inner wall of the other end of the transverse mounting groove through the second rotating joint, and one end of the driving threaded rod is fixedly connected to the output shaft of the stepper motor.

[0010] As a preferred solution of the present invention, in order to enable the threaded slider to slide in the transverse mounting groove by controlling the rotation of the driving threaded rod, the threaded slider is installed on the driving threaded rod, and the threaded slider is slidably engaged in the transverse mounting groove.

[0011] As a preferred scheme of the present invention, in order to enable the threaded slider to drive the transverse limiting slide bar to slide on the first clamping seat and the second clamping seat through the vertical thrust column and the thrust side plate, so that the leveling roller can roll on the bottom of the circuit board body, the vertical thrust column is fixedly installed on the bottom of the threaded slider, the thrust side plate is fixedly installed on one end of the vertical thrust column, the transverse limiting slide bar is fixedly installed on the thrust side plate, one end of the transverse limiting slide bar on both sides is respectively slidably inserted on the first clamping seat and the second clamping seat, one end of the transverse limiting slide bar is fixedly installed on the thrust connecting seat, and the leveling roller is rotatably installed on the inner wall of the thrust connecting seat.

[0012] As a preferred solution of the present invention, in order to enable the L-shaped mounting plate to be lifted, lowered and rotated by controlling the vertical telescopic push rod and the micro motor, the lifting and rotating grinding processing assembly includes the vertical telescopic push rod, the vertical telescopic push rod is fixedly embedded in the connecting top plate, the micro motor is fixedly installed on the telescopic end of the vertical telescopic push rod, and the L-shaped mounting plate is connected to the output shaft of the micro motor.

[0013] As a preferred scheme of the present invention, in order to drive the U-shaped grinding seat to move laterally by controlling the transverse telescopic push rod, the transverse telescopic push rod is fixedly embedded on the L-shaped mounting plate, the U-shaped grinding seat is installed on the transverse telescopic push rod, the U-shaped grinding seat is fixedly connected to the telescopic end of the transverse telescopic push rod through the L-shaped connecting rod, and the grinding roller is rotatably installed on the inner wall of the U-shaped grinding seat.

[0014] The beneficial effects of the present invention are as follows: 1. The clamping and positioning components can realize accurate clamping and positioning of circuit boards of different sizes, ensuring stability during the processing; the push-type abutment and leveling components can slide and abut under the circuit board to achieve the leveling of the circuit board body, effectively avoiding the influence of the bending of the circuit board body on the polishing effect.

[0015] 2. The lifting and rotating grinding and processing components can adjust the lifting height and rotation speed according to actual needs to meet the processing needs of different areas and degrees on the surface of the circuit board body, improve the uniformity and fineness of the grinding process, and improve the overall processing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the installation structure of the clamping and positioning assembly of the present invention on the installation base; Figure 3 It is a schematic diagram of the overall structure of the clamping and positioning assembly of the present invention; Figure 4 It is a schematic diagram of the installation structure of the leveling roller of the present invention; Figure 5 It is a schematic diagram of the connection structure between the vertical propulsion column and the threaded slider of the present invention; Figure 6 It is a structural schematic diagram of the lifting and rotating grinding processing component of the present invention.

[0018] Legend: 1. Mounting base; 2. Vertical side plate; 3. Conveying roller; 4. Clamping and positioning assembly; 401. Servo motor; 402. Bidirectional lead screw; 403. First rotating joint; 404. Clamping slider; 405. First clamping seat; 406. Second clamping seat; 407. Square connecting column; 5. Circuit board body; 6. Extended connecting block; 7. U-shaped mounting bracket; 8. Push-type abutment leveling assembly; 801. Stepping motor; 802. Driving threaded rod; 803. Second rotating joint Moving joint; 804, threaded slider; 805, vertical propulsion column; 806, propulsion side plate; 807, horizontal limit slide bar; 808, propulsion connection seat; 809, leveling roller; 9, connecting top plate; 10, lifting and rotating grinding processing component; 1001, vertical telescopic push rod; 1002, micro motor; 1003, L-shaped mounting plate; 1004, horizontal telescopic push rod; 1005, U-shaped grinding seat; 1006, L-shaped connecting rod; 1007, grinding roller. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Specific examples are given below.

[0021] like Figure 1-Figure 6As shown, a printed circuit board surface treatment device comprises a mounting base 1, a vertical side plate 2 is fixedly mounted on the top of the mounting base 1, a conveying roller 3 is rotatably mounted on the inner wall of the vertical side plate 2, one end of the conveying roller 3 is fixedly connected to the output shaft of the built-in motor of the vertical side plate 2, a limited sliding groove is provided on the mounting base 1, a clamping and positioning component 4 is installed in the limited sliding groove, the clamping and positioning component 4 is used to clamp and position the circuit board body 5, an extended connecting block 6 and a U-shaped mounting frame 7 are fixedly mounted on the top of the vertical side plate 2, a transverse mounting groove is provided on the extended connecting block 6, a push-type abutting and leveling component 8 is installed in the transverse mounting groove, the push-type abutting and leveling component 8 is slidably connected to the clamping and positioning component 4, and one end of the push-type abutting and leveling component 8 is located below the circuit board body 5, a connecting top plate 9 is fixedly installed on the U-shaped mounting frame 7, and the connecting top plate 9 A lifting and rotating grinding and processing component 10 is installed on the top of the circuit board body 5. When in use, the circuit board body 5 is first placed on the conveying roller 3, and the clamping and positioning component 4 is used to accurately clamp and position the circuit board body 5 in the limiting slide groove to ensure that the circuit board body 5 remains stable and motionless during the processing, and can adapt to the positioning of circuit board bodies 5 of different sizes. The push-type abutment leveling component 8 is controlled to slide in the horizontal installation groove, and one end of it abuts under the circuit board body 5 to achieve the leveling of the circuit board, ensure the uniformity of the grinding process, and avoid the bending of the circuit board body 5 affecting the grinding process effect. Then, the lifting and rotating grinding and processing component 10 is started, and the lifting and rotating movement is performed on the connecting top plate 9, gradually approaching and contacting the surface of the circuit board body 5, and fine grinding is performed. By adjusting the lifting height and rotation speed of the grinding component, the processing requirements of different areas and different degrees of the circuit board surface can be achieved.

[0022] The clamping and positioning assembly 4 includes a servo motor 401 and a bidirectional lead screw 402. The servo motor 401 is fixed on the inner wall of one end of the limiting slide. The bidirectional lead screw 402 is rotatably installed on the inner wall of the other end of the limiting slide through a first rotating joint 403, and one end of the bidirectional lead screw 402 is fixedly connected to the output shaft of the servo motor 401. A clamping slider 404 is threadedly installed on the bidirectional lead screw 402. The clamping slider 404 is slidably engaged in the limiting slide. There are two clamping sliders 404, and the two clamping sliders 404 are respectively located at the reverse thread ends of the bidirectional lead screw 402. A first clamping seat 405 and a second clamping seat 406 are respectively installed on the two clamping sliders 404. The first clamping seat 405 and the second clamping seat 406 are respectively fixedly connected to the two clamping sliders 404 through square connecting columns 407. When in use, the servo motor 401 is started, and the output shaft of the servo motor 401 drives the bidirectional lead screw 402 to rotate between the first rotating joints 403 at both ends of the limiting slide. Since the bidirectional lead screw 402 is provided with reverse screw teeth, the two clamping slide blocks 404 will slide toward the center or both sides along the limiting slide groove respectively to achieve movement toward or away from each other. The first clamping seat 405 and the second clamping seat 406 on the clamping slide block 404 move with the slide block through the square connecting column 407, thereby accurately clamping or releasing the circuit board body 5, ensuring the stability of the circuit board body 5 during the processing, and at the same time, the circuit board bodies 5 of different sizes can be clamped and positioned.

[0023] The push-type abutment leveling component 8 includes a stepper motor 801 and a driving threaded rod 802. The stepper motor 801 is fixed on the inner wall of one end of the transverse mounting groove. The driving threaded rod 802 is rotatably mounted on the inner wall of the other end of the transverse mounting groove through a second rotating joint 803, and one end of the driving threaded rod 802 is fixedly connected to the output shaft of the stepper motor 801. A threaded slider 804 is installed on the driving threaded rod 802. The threaded slider 804 is slidably engaged in the transverse mounting groove. A vertical propulsion column 805 is fixedly installed at the bottom of the threaded slider 804. A propulsion side plate 806 is fixedly installed at one end of the vertical propulsion column 805. A transverse limiting slide bar 807 is fixedly installed on the propulsion side plate 806. One end of the transverse limiting slide bars 807 on both sides are respectively slidably inserted into the first clamping seat 405 and the second clamping seat 406. One end of the transverse limiting slide bar 807 is fixedly installed with a propulsion connecting seat 808. A leveling roller 809 is rotatably installed on the inner wall of the seat 808. When in use, the leveling roller 809 is in contact with the bottom of the circuit board body 5, and the stepping motor 801 is controlled to drive the threaded rod 802 to rotate between the second rotating joints 803, so that the threaded slider 804 slides in the horizontal mounting groove, and the vertical propulsion column 805 at the bottom of the threaded slider 804 moves accordingly, driving the propulsion side plate 806 and the horizontal limit slide bar 807 to slide along the first clamping seat 405 and the second clamping seat 406, and the leveling roller 809 in the propulsion connection seat 808 is then in contact with the bottom of the circuit board body 5 and rolls. Through the precise control of the stepping motor 801, the leveling roller 809 performs leveling and fine-tuning on the circuit board body 5 to achieve horizontal positioning of the circuit board body 5, making the circuit body more flat during the processing, which not only improves the processing accuracy of the circuit board, but also ensures the uniformity and quality of the polishing process.

[0024] The lifting and rotating grinding processing assembly 10 includes a vertical telescopic push rod 1001, which is fixedly embedded in the connecting top plate 9, and a micro motor 1002 is fixedly installed on the telescopic end of the vertical telescopic push rod 1001. An L-shaped mounting plate 1003 is connected to the output shaft of the micro motor 1002, and a transverse telescopic push rod 1004 is fixedly embedded on the L-shaped mounting plate 1003. A U-shaped grinding seat 1005 is installed on the transverse telescopic push rod 1004. The U-shaped grinding seat 1005 is fixedly connected to the telescopic end of the transverse telescopic push rod 1004 through an L-shaped connecting rod 1006, and a grinding roller 1005 is rotatably installed on the inner wall of the U-shaped grinding seat 1005. 07. When in use, start the vertical telescopic push rod 1001, so that its telescopic end drives the micro motor 1002 and the L-shaped mounting plate 1003 to descend to an appropriate height, so that the grinding roller 1007 contacts the circuit board body 5, control the micro motor 1002 to start, drive the horizontal telescopic push rod 1004 and the U-shaped grinding seat 1005 on the L-shaped mounting plate 1003 to rotate, and adjust the direction of the grinding roller 1007. Through the telescopic action of the horizontal telescopic push rod 1004, the grinding roller 1007 in the U-shaped grinding seat 1005 closely fits the surface of the circuit board body 5 and rolls, so as to achieve uniform and detailed comprehensive grinding of the circuit board body 5.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A printed circuit board surface treatment device, comprising a mounting base (1), characterized in that: A vertical side plate (2) is fixedly mounted on the top of the mounting base (1); a conveying roller (3) is rotatably mounted on the inner wall of the vertical side plate (2); one end of the conveying roller (3) is fixedly connected to the output shaft of the built-in motor of the vertical side plate (2); a limiting slide groove is provided on the mounting base (1); a clamping and positioning component (4) is installed in the limiting slide groove; the clamping and positioning component (4) is used to clamp and position the circuit board body (5); an extension connection block (6) and a U-shaped mounting frame (7) are fixedly mounted on the top of the vertical side plate (2); the ... A transverse mounting groove is provided on the connecting block (6), a push-type abutment leveling component (8) is installed in the transverse mounting groove, the push-type abutment leveling component (8) is slidably connected to the clamping positioning component (4), and one end of the push-type abutment leveling component (8) is located below the circuit board body (5), a connecting top plate (9) is fixedly installed on the U-shaped mounting frame (7), a lifting and rotating grinding processing component (10) is installed on the connecting top plate (9), and the lifting and rotating grinding processing component (10) is located above the circuit board body (5).

2. The printed circuit board surface treatment device according to claim 1, characterized in that: The clamping and positioning assembly (4) comprises a servo motor (401) and a bidirectional lead screw (402), wherein the servo motor (401) is fixed to the inner wall at one end of the limiting slide, and the bidirectional lead screw (402) is rotatably mounted on the inner wall at the other end of the limiting slide via a first rotating joint (403), and one end of the bidirectional lead screw (402) is fixedly connected to the output shaft of the servo motor (401).

3. The printed circuit board surface treatment device according to claim 2, characterized in that: A clamping slider (404) is threadedly mounted on the bidirectional lead screw (402), and the clamping slider (404) is slidably engaged in the limiting slide groove. There are two clamping sliders (404), and the two clamping sliders (404) are respectively located at the reverse thread ends of the bidirectional lead screw (402). A first clamping seat (405) and a second clamping seat (406) are respectively mounted on the two clamping sliders (404), and the first clamping seat (405) and the second clamping seat (406) are respectively fixedly connected to the two clamping sliders (404) via square connecting columns (407).

4. The printed circuit board surface treatment device according to claim 3, characterized in that: The push-type abutment leveling assembly (8) comprises a stepper motor (801) and a driving threaded rod (802), wherein the stepper motor (801) is fixed to the inner wall at one end of the transverse installation slot, and the driving threaded rod (802) is rotatably mounted on the inner wall at the other end of the transverse installation slot via a second rotating joint (803), and one end of the driving threaded rod (802) is fixedly connected to the output shaft of the stepper motor (801).

5. The printed circuit board surface treatment device according to claim 4, characterized in that: A threaded slider (804) is mounted on the driving threaded rod (802), and the threaded slider (804) is slidably engaged in the transverse mounting groove.

6. The printed circuit board surface treatment device according to claim 5, characterized in that: A vertical propulsion column (805) is fixedly installed at the bottom of the threaded slider (804), a propulsion side plate (806) is fixedly installed at one end of the vertical propulsion column (805), a transverse limiting slide bar (807) is fixedly installed on the propulsion side plate (806), one end of the transverse limiting slide bars (807) on both sides are slidably inserted into the first clamping seat (405) and the second clamping seat (406) respectively, and a propulsion connecting seat (808) is fixedly installed at one end of the transverse limiting slide bar (807), and a leveling roller (809) is rotatably installed on the inner wall of the propulsion connecting seat (808).

7. The printed circuit board surface treatment device according to claim 1, characterized in that: The lifting and rotating grinding and processing component (10) comprises a vertical telescopic push rod (1001), the vertical telescopic push rod (1001) is fixedly embedded in the connecting top plate (9), a micro motor (1002) is fixedly installed on the telescopic end of the vertical telescopic push rod (1001), and an L-shaped mounting plate (1003) is connected to the output shaft of the micro motor (1002).

8. The printed circuit board surface treatment device according to claim 7, characterized in that: A transverse telescopic push rod (1004) is fixedly embedded on the L-shaped mounting plate (1003), a U-shaped grinding seat (1005) is mounted on the transverse telescopic push rod (1004), the U-shaped grinding seat (1005) is fixedly connected to the telescopic end of the transverse telescopic push rod (1004) via an L-shaped connecting rod (1006), and a grinding roller (1007) is rotatably mounted on the inner wall of the U-shaped grinding seat (1005).

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