A cutting device for a circuit board production

Abstract

The utility model belongs to the field of circuit board production especially a circuit board production cutting device, in view prior art cutting board material is easy to cause broken knife or size error to rise, manual regulation cutting path and cutter height, operation procedure is more complicated, influence cutting progress problem, present and propose following scheme, including chassis, the sliding connection frame of placing is established in the chassis, the opening for board material feeding is established in the one side of frame of placing, top frame, fixed mounting in the top of chassis, the cross -misplacement arrangement of two sliding frames is equipped with in the top frame, sliding frame, sliding installation in two sliding frame, sliding frame bottom is equipped with the ball bearing and cutting milling cutter that can elastically press -joint board material, the utility model discloses through mechanical structure innovation and intelligent control fusion, the precision, efficiency and security of circuit board cutting process are improved significantly, and key technical support is provided for high -end manufacturing of consumer electronics, automobile electronics, 5G communication and the field.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, and in particular to a circuit board cutting and slitting device. Background Technology

[0002] Circuit board cutting equipment is a key piece of equipment in the electronics manufacturing industry. Its core function is to achieve efficient and precise cutting of circuit board raw materials through precision mechanics and automated control technology, while ensuring production safety and environmental friendliness.

[0003] Existing circuit board cutting and slitting equipment still has some shortcomings in actual use:

[0004] 1. Fixed fixtures are prone to damaging or deforming circuit boards, while vacuum adsorption has limited effectiveness in fixing irregularly shaped or thick boards. During cutting, the boards are prone to warping, leading to broken blades or dimensional errors.

[0005] 2. Traditional equipment requires manual adjustment of the cutting path and blade height, which is a cumbersome process and affects the cutting progress. Utility Model Content

[0006] The purpose of this invention is to solve the shortcomings of existing technologies, such as the easy warping of the board material during cutting, leading to blade breakage or dimensional errors, and the cumbersome operation process of manually adjusting the cutting path and blade height, which affects the cutting progress. Therefore, this invention proposes a board cutting device for circuit board production.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A circuit board manufacturing cutting and slitting device, comprising:

[0009] A base frame, in which a placement frame is slidably connected, and an opening for feeding the sheet metal is provided on one side of the placement frame;

[0010] The top frame is fixedly installed on the top of the base frame, and the top frame has two sliding frames arranged in a cross-shaped staggered manner;

[0011] A sliding frame is slidably installed in the two sliding frames, and the bottom of the sliding frame is provided with ball bearings and a cutting milling cutter that can elastically press against the plate.

[0012] The ball bearings are connected to the sliding frame via springs to form an adaptive clamping mechanism, and the cutting cutter is located between the two ball bearings to form a stable structure for the cutting zone.

[0013] In one possible design, a rotating rod is rotatably connected inside the base frame, the outer wall of the rotating rod is provided with a threaded section, a first nut that is threadedly engaged with the rotating rod is fixedly connected to the bottom of the placement frame, and the base frame is provided with a first drive motor that drives the rotating rod through a chain.

[0014] In one possible design, the top frame is provided with two lead screws, each lead screw is threaded to a second nut, the second nut is fixedly connected to the end of the corresponding sliding frame, and the lead screw is driven by a second drive motor.

[0015] In one possible design, the ball is connected to a connecting rod that is slidably disposed in the sliding frame via a rolling sleeve. The sliding frame is provided with two springs, the two ends of which abut against the inner wall of the top of the sliding frame and the top of the connecting rod respectively via spring seats, forming a 0-5mm pressing stroke.

[0016] In one possible design, the bottom surface of the rolling sleeve is provided with a spherical groove, and the ball is embedded in the groove in an interference fit to form a rolling friction pair.

[0017] In one possible design, the sliding frame is equipped with an electric push rod, the output end of which is fitted with a third drive motor, and the output shaft of the third drive motor is fitted with the cutting milling cutter.

[0018] In one possible design, the first drive motor forms a double sprocket synchronous transmission mechanism via sprockets and chains, with one sprocket keyed to the end of the rotating rod.

[0019] In one possible design, the two ends of the lead screw are mounted in the top frame via angular contact ball bearings, and the second drive motor is directly connected to the lead screw via a coupling.

[0020] In one possible design, the sliding frame is equipped with a linear guide rail, and the sliding frame achieves bidirectional precision movement through the cooperation of the slider and the guide rail, with a movement positioning accuracy of ±0.05mm.

[0021] The circuit board is placed on the placement frame. The PLC controller controls the first drive motor. After the first drive motor is powered on and started, its output shaft drives two sprockets connected by a chain drive to rotate. One of the sprockets drives a rotating rod to rotate, which in turn moves the first nut through the threaded section on the outer wall of the rotating rod. This causes the first nut to move the placement frame, which slides within a groove via sliders on both sides until it reaches below the top frame. At this point, ball bearings press against the circuit board. Depending on the thickness of the circuit board, the ball bearings, via springs, allow the connecting rod to slide within the sliding frame, thus... The ball bearings are stably pressed onto the circuit board. The PLC controller controls the two second drive motors. The output shafts of the two second drive motors drive the two lead screws to rotate. The two lead screws drive the second nuts to move. The second nuts drive the sliding frame to move, which in turn drives the sliding frame to move according to the cutting position. The electric push rod inside the sliding frame is energized by the PLC controller, which lowers the third drive motor to the required height. The cutter at the bottom of the third drive motor cuts the circuit board. At the same time, the two ball bearings are located on both sides of the third drive motor, which can maintain stable pressure at the cutting point of the circuit board.

[0022] Beneficial effects: This utility model uses a second drive motor to independently drive the lead screw, and the displacement adjustment of the sliding frame is realized through PLC control. The staggered cross layout design allows the sliding frame to cover a larger working range and adapt to the processing needs of circuit boards of various sizes.

[0023] This invention uses a ball bearing and a spring to achieve 0-5mm adaptive downward pressure. Combined with the rolling friction design of the rolling sleeve, the pressing force is evenly distributed on the surface of the sheet material, avoiding component damage or sheet material deformation caused by traditional clamps.

[0024] This invention significantly improves the precision, efficiency, and safety of circuit board cutting processes by integrating mechanical structure innovation with intelligent control, providing key technical support for high-end manufacturing in fields such as consumer electronics, automotive electronics, and 5G communications. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a circuit board production cutting and slitting device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the base frame of the circuit board production cutting and slitting device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the sliding frame of a circuit board production cutting and slitting device proposed in this utility model.

[0028] Figure 4 This is a cross-sectional structural diagram of the sliding frame of the circuit board production cutting device proposed in this utility model.

[0029] In the diagram: 1. Base frame; 2. Top frame; 3. Placement frame; 4. Rotating rod; 5. L-shaped bracket; 6. Chain; 7. Sprocket; 8. First drive motor; 9. First nut; 10. Opening; 11. Sliding frame; 12. Lead screw; 13. Second drive motor; 14. Second nut; 15. Slider; 16. Sliding frame; 17. Electric push rod; 18. Connecting rod; 19. Spring; 20. Third drive motor; 21. Rolling sleeve; 22. Ball bearing. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Example 1: Refer to Figure 1 and Figure 2 A board cutting device includes a base frame 1 with a rectangular frame structure. The inner side of the frame has grooves. Sliding blocks are welded to both sides of a placement frame 3 and embedded in the grooves for sliding connection. An opening 10 is provided on the left side of the placement frame 3 for easy manual placement and removal of boards. A top frame 2 is bolted to the top of the base frame 1. Two sets of cross-shaped, staggered sliding frames 11 are installed inside the top frame 2. Linear guide rails are provided inside the sliding frames 11, and the sliding frames 16 move bidirectionally through the cooperation of the sliding blocks and guide rails.

[0032] Reference Figure 2 The rotating rod 4 is horizontally mounted inside the base frame 1 via a bearing seat, and its surface is machined with bidirectional threads. The first nut 9 is welded to the bottom surface of the placement frame 3, forming a threaded pair with the rotating rod 4. The L-shaped bracket 5 is welded to the bottom right end of the base frame 1, and the first drive motor 8 is mounted on its top platform. Two sprockets 7 are keyed to the output shaft of the first drive motor 8 and the right end of the rotating rod 4, respectively, and a chain 6 surrounds the two sprockets to form a closed-loop transmission. When the first drive motor 8 is energized, the rotating rod 4 rotates, driving the first nut 9 to move the placement frame 3 linearly along the slide groove of the base frame 1.

[0033] Reference Figure 1 and Figure 3 A set of lead screws 12 is installed on each of the front and rear sides inside the top frame 2. The two ends of the lead screws 12 are fixed by angular contact ball bearings. The second nut 14 mates with the lead screw 12 through an internal threaded hole. The two sides of the second nut 14 are welded with sliders that slide and connect to the internal guide rail of the top frame 2. The two ends of the sliding frame 11 are bolted to the second nut 14 and the slider 15, respectively. The slider 15 is embedded in the guide rail on the side wall of the top frame 2. Two sets of second drive motors 13 are flange-connected to the left and right sides of the top frame 2, and the motor shafts are connected to the corresponding lead screws 12 through couplings. When the second drive motor 13 is started, the lead screw 12 drives the second nut 14 to move the sliding frame 11, realizing the precise positioning of the sliding frame 16 in the XY plane.

[0034] Reference Figure 3 and Figure 4 The sliding frame 16 has a vertical guide hole inside, and the connecting rod 18 is clearance-fitted with the guide hole. A spring 19 is installed in a groove at the top of the sliding frame 16, with its lower end abutting the top surface of the connecting rod 18. A rolling sleeve 21 is fixedly connected to the bottom of the connecting rod 18, and its bottom surface is machined with a spherical groove to assemble a ball bearing 22. The ball bearing 22 is connected to the connecting rod 18, which is slidably disposed within the sliding frame 16, via the rolling sleeve 21. Two springs 19 are provided inside the sliding frame 16, with their ends abutting against the inner top wall of the sliding frame 16 and the top of the connecting rod 18, respectively, via spring seats. When the circuit board enters the working area, the ball bearing 22 contacts the board surface and compresses the spring 19, forming an adaptive clamping force with a 5mm stroke. An electric push rod 17 is vertically installed at the center of the sliding frame 16 via a flange, with a third drive motor 20 mounted at the end of its piston rod, and a diamond end mill mounted on the motor output shaft. The PLC controller synchronously controls the coordinated action of the three drive motors and the electric push rod through a preset program.

[0035] Reference Figure 3 During operation, the circuit board is pushed into the placement frame 3 through the opening 10. The first drive motor 8 drives the placement frame 3 to move below the top frame 2. The second drive motor 13 drives the sliding frame 16 to position according to the preset cutting path, and the ball bearings 22 press against the surface of the circuit board under the action of the spring 19. The electric push rod 17 descends to the third drive motor 20 to the set cutting depth, and the milling cutter rotates at high speed to cut. During the cutting process, the ball bearings 22 roll along both sides of the cut to keep the board flat. After the cutting is completed, all actuators reset, and the cut circuit board is removed.

[0036] This application can be used in the field of circuit board manufacturing, or in other fields applicable to this application.

[0037] Example 2: Reference Figures 1 to 4 Based on Embodiment 1, an improved circuit board cutting device is proposed. This device, applied to the circuit board manufacturing industry, achieves precise positioning of the cutting head and conveying of the board material through a combination of chain drive and lead screw drive. A ball bearing clamping mechanism eliminates board warping, and an electric push rod combined with a servo motor enables precise control of the cutting depth. The double-cross sliding frame structure allows the cutting head to effectively cover an 800×600mm working area, adapting to the processing of circuit boards of different sizes. The springs are made of stainless steel, with the clamping force controlled within the range of 20-50N, and the cycle count ≥10,000 times, avoiding damage to precision components. The overall system positioning accuracy reaches ±0.05mm, and the cutting speed can reach 15m / min, improving efficiency by more than 40% compared to traditional equipment.

[0038] However, as is well known to those skilled in the art, the working principles and wiring methods of the first drive motor 8, the second drive motor 13 and the third drive motor 20 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0039] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A circuit board cutting and slitting device, characterized in that, include: A base frame (1) is slidably connected to a placement frame (3) inside the base frame (1), and an opening (10) for feeding the plate is provided on one side of the placement frame (3); The top frame (2) is fixedly installed on the top of the base frame (1), and the top frame (2) is provided with two sliding frames (11) arranged in a cross-shaped staggered manner; A sliding frame (16) is slidably installed in the two sliding frames (11). The bottom of the sliding frame (16) is provided with a ball bearing (22) that can elastically press the plate and a cutting milling cutter. The ball (22) is connected to the sliding frame (16) by the spring (19) to form an adaptive clamping mechanism, and the cutting cutter is located between the two balls (22) to form a stable cutting area structure.

2. The circuit board production cutting and slitting device according to claim 1, characterized in that, The base frame (1) is rotatably connected to a rotating rod (4), the outer wall of the rotating rod (4) is provided with a threaded section, the bottom of the placement frame (3) is fixedly connected to a first nut (9) that is threadedly engaged with the rotating rod (4), and the base frame (1) is provided with a first drive motor (8) that drives the rotating rod (4) through a chain (6).

3. The circuit board production cutting and slitting device according to claim 1, characterized in that, The top frame (2) is provided with two lead screws (12), each lead screw (12) is threadedly connected to a second nut (14), the second nut (14) is fixedly connected to the end of the corresponding sliding frame (11), and the lead screw (12) is driven by a second drive motor (13).

4. The circuit board production cutting and slitting device according to claim 1, characterized in that, The ball (22) is connected to the connecting rod (18) which is slidably disposed in the sliding frame (16) via the rolling sleeve (21). The sliding frame (16) is provided with two springs (19), and the two ends of the springs (19) abut against the top inner wall of the sliding frame (16) and the top of the connecting rod (18) respectively via spring seats.

5. The circuit board production cutting and slitting device according to claim 4, characterized in that, The bottom surface of the rolling sleeve (21) is provided with a spherical groove, and the ball (22) is embedded in the groove in an interference fit manner to form a rolling friction pair.

6. The circuit board production cutting and slitting device according to claim 1, characterized in that, The sliding frame (16) is equipped with an electric push rod (17), and a third drive motor (20) is installed at the output end of the electric push rod (17). The output shaft of the third drive motor (20) is fitted with the cutting milling cutter.

7. The circuit board production cutting and slitting device according to claim 2, characterized in that, The first drive motor (8) forms a double sprocket synchronous transmission mechanism through sprocket (7) and chain (6), one of which is keyed to the end of the rotating rod (4).

8. The circuit board production cutting and slitting device according to claim 3, characterized in that, The two ends of the lead screw (12) are mounted in the top frame (2) through angular contact ball bearings, and the second drive motor (13) is directly connected to the lead screw (12) through a coupling.

9. The circuit board production cutting and slitting device according to any one of claims 1-8, characterized in that, The sliding frame (11) is equipped with a linear guide rail, and the sliding frame (16) achieves bidirectional precision movement through the cooperation of the slider and the guide rail, with a movement positioning accuracy of ±0.05mm.

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