Numerical control drilling and milling equipment for printed circuit board

Abstract

The utility model discloses numerical control drilling and milling equipment for a printed circuit board, which comprises a machine body, one side in the machine body is provided with a processing chamber, the center of the bottom in the processing chamber is fixedly provided with a fixed seat, the inside of the fixed seat is of a hollow structure, and both sides in the fixed seat are provided with telescopic plates; and a bidirectional threaded rod is arranged at the center in the fixed seat. According to the numerical control drilling and milling equipment for the printed circuit board, through the design of a fixed seat, a bidirectional threaded rod, telescopic plates, an adjusting motor, a transmission wheel, a belt, a fixed plate and a positioning screw rod, the adjusting motor is controlled to operate to enable the bidirectional threaded rod to rotate; the two telescopic plates can be driven to horizontally move oppositely or reversely along with the rotation direction of the bidirectional threaded rod, so that the positioning screw rods on the two connecting plates are driven to adjust the distance, and adjustment can be carried out according to printed circuit boards with different lengths.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control drilling and milling equipment, in particular to numerical control drilling and milling equipment for a printed circuit board. Background Art

[0002] CNC drilling and milling equipment for printed circuit boards is a type of equipment specifically used to make printed circuit boards (PCBs). It uses computer numerical control (CNC) technology to automatically complete operations such as drilling and milling of circuit boards. It has the characteristics of high precision, high efficiency and high automation. This equipment is widely used in consumer electronics, communications, medical, automotive, industrial, national defense, aerospace and other fields.

[0003] Existing CNC drilling and milling equipment for printed circuit boards has some shortcomings when drilling and milling circuit boards. The most prominent problem is that these equipment are not convenient for fixing circuit boards of different specifications, which makes the operation process complicated and requires special settings and adjustments for each specification of circuit boards, greatly reducing work efficiency. In addition, this inflexibility also increases the probability of errors and may cause various problems, such as inaccurate drilling positions, inappropriate milling depths, etc., thereby affecting the quality and performance of the circuit board. Therefore, we propose a CNC drilling and milling equipment for printed circuit boards. Utility Model Content

[0004] The purpose of the utility model is to provide a CNC drilling and milling device for a printed circuit board, so as to solve the problems mentioned in the above background technology that the existing CNC drilling and milling devices for printed circuit boards have some shortcomings when drilling and milling circuit boards. The most prominent problem is that these devices are not convenient for fixing circuit boards of different specifications, which makes the operation process complicated and requires special settings and adjustments for each specification of circuit boards, which greatly reduces work efficiency. In addition, this inflexibility also increases the probability of errors and may cause various problems, such as inaccurate drilling position, inappropriate milling depth, etc., thereby affecting the quality and performance of the circuit board.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC drilling and milling device for a printed circuit board, comprising a body, a processing chamber is opened on one side of the body, a fixed seat is fixedly installed at the center of the bottom of the processing chamber, the interior of the fixed seat is a hollow structure, telescopic plates are arranged on both sides of the fixed seat, a bidirectional threaded rod is arranged in the center of the fixed seat, an adjusting motor is fixedly installed at the center of the bottom of the processing chamber, the adjusting motor is fixedly connected with a spindle through an output end on one side thereof, a transmission wheel is fixedly installed on one side of the spindle and the surface center of the bidirectional threaded rod, the two transmission wheels are connected through belt transmission, the two telescopic plates are fixedly connected to the fixed plates on one side opposite to the top, the two fixed plates are threadedly connected to the positioning screws on the one side opposite to the top, cylinders are fixedly installed at the two sides of the top of the processing chamber, the cylinders are fixedly connected to the piston rods through the output ends at the bottom thereof, the lower ends of the two piston rods are fixedly connected to the connecting plates, a linear guide is fixedly installed at the center of the bottom of the connecting plate, a linear motor is movably installed at the center of the bottom of the linear guide, and a drilling and milling mechanism is fixedly installed at the bottom of the linear motor.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] The CNC drilling and milling equipment for a printed circuit board controls the operation of the adjusting motor to rotate the bidirectional threaded rod through the design of a fixed seat, a bidirectional threaded rod, a telescopic plate, an adjusting motor, a transmission wheel, a belt, a fixed plate and a positioning screw rod. The bidirectional threaded rod and the threaded transmission between the bidirectional threaded rod and the inner walls of the two telescopic plates can drive the two telescopic plates to move horizontally relative to or back to back simultaneously along the rotation direction of the bidirectional threaded rod, thereby driving the positioning screw rods on the two connecting plates to adjust the spacing. The equipment can be adjusted for printed circuit boards of different lengths, so that the printed circuit board can be stably fixed during drilling and milling processing, thereby improving subsequent processing efficiency, facilitating operation and use, and improving the practicality and adaptability of the CNC drilling and milling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 For this utility model Figure 1 A is a partial enlarged schematic diagram;

[0010] Figure 3 For this utility model Figure 1 A partial enlarged schematic diagram of B in the middle;

[0011] Figure 4 It is a structural stereogram of the telescopic plate of the utility model.

[0012] Figure 5 It is the front view of the structure of the utility model.

[0013] In the figure: 1. Machine body; 2. Processing chamber; 3. Fixed seat; 4. Bidirectional threaded rod; 5. Telescopic plate; 6. Adjusting motor; 7. Transmission wheel; 8. Belt; 9. Bearing plate; 10. Slide; 11. Slider; 12. Telescopic slot; 13. Ball; 14. Fixed plate; 15. Positioning screw; 16. Cylinder; 17. Connecting plate; 18. Linear guide; 19. Linear motor; 20. Drilling and milling mechanism. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-4 The utility model provides a technical solution: a CNC drilling and milling device for a printed circuit board, comprising a body 1, a processing chamber 2 is opened on one side of the body 1, a fixed seat 3 is fixedly installed at the center of the bottom of the processing chamber 2, the interior of the fixed seat 3 is a hollow structure, telescopic plates 5 are arranged on both sides of the fixed seat 3, a bidirectional threaded rod 4 is arranged in the center of the fixed seat 3, an adjusting motor 6 is fixedly installed at the center of the bottom of the processing chamber 2, the adjusting motor 6 is fixedly connected to a spindle through an output end on one side thereof, a transmission wheel 7 is fixedly installed on one side of the spindle and the surface center of the bidirectional threaded rod 4, and two transmission wheels are fixedly installed on the two sides of the spindle. The driving wheel 7 is connected through a belt 8, and the opposite sides of the tops of the two telescopic plates 5 are fixedly connected with a fixed plate 14, and the opposite sides of the tops of the two fixed plates 14 are threadedly connected with positioning screws 15. Cylinders 16 are fixedly installed at the two sides of the top of the processing chamber 2, and the cylinder 16 is fixedly connected with a piston rod through the output end at the bottom, and the lower ends of the two piston rods are fixedly connected with a connecting plate 17, and a linear guide 18 is fixedly installed at the center of the bottom of the connecting plate 17, and a linear motor 19 is movably installed at the center of the bottom of the linear guide 18, and a drilling and milling mechanism 20 is fixedly installed at the bottom of the linear motor 19.

[0016] A forward thread groove and a reverse thread groove are respectively opened in the center of the opposite side of the two telescopic plates 5. The two ends of the bidirectional threaded rod 4 respectively penetrate into the interior of the two telescopic plates 5 and are threadedly connected to the inner walls of the forward thread groove and the reverse thread groove. The two telescopic plates 5 can move relative to or away from each other at the same time along the rotation direction of the bidirectional threaded rod 4.

[0017] Two bearing plates 9 are movably installed in the center of the surface of the bidirectional threaded rod 4. The top and bottom of the two bearing plates 9 are fixedly connected to the inner wall of the fixed seat 3, which are used to support the bidirectional threaded rod 4 during rotation to ensure the smooth rotation of the bidirectional threaded rod 4.

[0018] Slide grooves 10 are provided on both sides of the top and bottom of the fixed seat 3, and sliders 11 are fixedly connected to the opposite sides of the top and bottom of the two telescopic plates 5. The tops and bottoms of the two sliders 11 arranged up and down extend to the inside of the four slide grooves 10 respectively and are slidably connected to the inner walls of the slide grooves 10, which has the effect of stabilizing and limiting the telescopic plates 5 when they move horizontally.

[0019] Telescopic grooves 12 are provided at the tops of both sides of the fixing seat 3, and the opposite sides of the two telescopic plates 5 respectively penetrate to the outside of the two telescopic grooves 12, and balls 13 are rollingly installed on the top and bottom of the telescopic grooves 12. The top and bottom of the telescopic plate 5 are in contact with the surface of the ball 13, which supports the telescopic plate 5 during the telescopic movement and keeps the telescopic plate 5 horizontal.

[0020] An adjusting button is fixedly connected to the top of the positioning screw 15, and the lower end of the positioning screw 15 passes through the outside of the fixing plate 14 and is fixedly connected to a positioning block. A sponge layer is bonded to the bottom of the positioning block by an adhesive. Rotating the positioning screw 15 drives the bottom positioning block to move downward, and the sponge layer contacts the top of the printed circuit board to fix it.

[0021] A movable door is movably installed on the front surface of the processing chamber 2, and supporting legs are fixedly installed at the four corners of the bottom of the machine body 1.

[0022] Working principle: Before drilling and milling, first adjust the fixing mechanism according to the specifications of the printed circuit board to be processed. First, place the printed circuit board on the fixing seat 3. Then, control the adjustment motor 6 to operate, and drive the bidirectional threaded rod 4 to rotate through the transmission wheel 7 and the belt 8. At this time, the two telescopic plates 5 shrink or extend at the same time along the rotation direction of the bidirectional threaded rod 4 until the bottom of the positioning screws 15 on both sides are adjusted to the top of the placed printed circuit board and the adjustment motor 6 is stopped. Then, rotate the positioning screws 15 on both sides to move downward respectively, so that the sponge layer at the bottom of the positioning block contacts the top of the printed circuit board, and position the printed circuit board on the fixing seat 3 before drilling and milling.

[0023] In summary: the CNC drilling and milling equipment for printed circuit boards, through the design of the fixed seat 3, the bidirectional threaded rod 4, the telescopic plate 5, the adjusting motor 6, the transmission wheel 7, the belt 8, the fixed plate 14 and the positioning screw 15, controls the operation of the adjusting motor 6 to rotate the bidirectional threaded rod 4, and through the threaded transmission between the bidirectional threaded rod 4 and the inner walls of the two telescopic plates 5, the two telescopic plates 5 can be driven to move horizontally relative to or back to back with the rotation direction of the bidirectional threaded rod 4, thereby driving the positioning screws 15 on the two connecting plates 17 to adjust the spacing, and can be adjusted for printed circuit boards of different lengths, so as to facilitate the stable fixation of the printed circuit board during drilling and milling, thereby improving the subsequent processing efficiency, facilitating operation and use, and improving the practicality and adaptability of the CNC drilling and milling equipment.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC drilling and milling device for a printed circuit board, comprising a body (1), characterized in that: A processing chamber (2) is provided on one side of the machine body (1), a fixing seat (3) is fixedly installed at the center of the bottom of the processing chamber (2), the interior of the fixing seat (3) is a hollow structure, telescopic plates (5) are provided on both sides of the fixing seat (3), a bidirectional threaded rod (4) is provided at the center of the fixing seat (3), an adjusting motor (6) is fixedly installed at a center position of the bottom of the processing chamber (2), the adjusting motor (6) is fixedly connected to a main shaft through an output end on one side thereof, a transmission wheel (7) is fixedly installed on one side of the main shaft and at the center of the surface of the bidirectional threaded rod (4), the two transmission wheels (7) are connected by a belt (8), and the two transmission wheels (7) are connected by a belt (8). The opposite sides of the tops of the telescopic plates (5) are fixedly connected to fixed plates (14), and the opposite sides of the tops of the two fixed plates (14) are threadedly connected to positioning screws (15). Cylinders (16) are fixedly installed at the positions on both sides of the top of the processing chamber (2). The cylinders (16) are fixedly connected to piston rods through the output ends at the bottom thereof. The lower ends of the two piston rods are fixedly connected to connecting plates (17). A linear guide rail (18) is fixedly installed at the center of the bottom of the connecting plate (17). A linear motor (19) is movably installed at the center of the bottom of the linear guide rail (18), and a drilling and milling mechanism (20) is fixedly installed at the bottom of the linear motor (19).

2. A CNC drilling and milling device for a printed circuit board according to claim 1, characterized in that: A forward thread groove and a reverse thread groove are respectively provided at the centers of opposite sides of the two telescopic plates (5), and both ends of the bidirectional threaded rod (4) respectively penetrate into the interior of the two telescopic plates (5) and are threadedly connected to the inner walls of the forward thread groove and the reverse thread groove.

3. The CNC drilling and milling equipment for a printed circuit board according to claim 1, characterized in that: Two bearing plates (9) are movably mounted at the center of the surface of the bidirectional threaded rod (4), and the tops and bottoms of the two bearing plates (9) are fixedly connected to the inner wall of the fixing seat (3).

4. The CNC drilling and milling equipment for a printed circuit board according to claim 1, characterized in that: Slide grooves (10) are provided at both sides of the top and bottom of the fixed seat (3); sliders (11) are fixedly connected to the top and bottom opposite sides of the two telescopic plates (5); the tops and bottoms of the two sliders (11) arranged up and down extend to the inside of the four slide grooves (10) respectively and are slidably connected to the inner walls of the slide grooves (10).

5. The CNC drilling and milling equipment for a printed circuit board according to claim 1, characterized in that: The tops of both sides of the fixed seat (3) are provided with telescopic grooves (12), and the opposite sides of the two telescopic plates (5) respectively penetrate to the outside of the two telescopic grooves (12), and the tops and bottoms in the telescopic grooves (12) are both rollingly mounted with balls (13), and the tops and bottoms of the telescopic plates (5) are in contact with the surfaces of the balls (13).

6. The CNC drilling and milling equipment for a printed circuit board according to claim 1, characterized in that: The top of the positioning screw (15) is fixedly connected with an adjusting button, the lower end of the positioning screw (15) passes through the outside of the fixing plate (14) and is fixedly connected with a positioning block, and the bottom of the positioning block is bonded with a sponge layer by an adhesive.

7. The CNC drilling and milling equipment for a printed circuit board according to claim 1, characterized in that: A movable door is movably mounted on the front surface of the processing chamber (2), and support legs are fixedly mounted at the four corners of the bottom of the machine body (1).

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