Numerical control machine tool for positioning PCB board

Abstract

The application relates to a numerical control machine tool convenient for positioning a PCB board, which comprises a numerical control machine tool body, the numerical control machine tool body comprises a machining table and a working part, the working part is located directly above the machining table, a positioning assembly is placed on the machining table, and the positioning assembly limits the position of the PCB board; the positioning assembly comprises a gas feeding assembly, and the gas feeding assembly fixes the position of the PCB board. The application relates to the technical field of circuit board processing equipment. The application has the effects of avoiding manual installation and dismounting of the PCB board, reducing the damage of the PCB board in the positioning process, and reducing the defective rate of the PCB board.

Description

Technical Field

[0001] This invention relates to the technical field of circuit board processing equipment, and in particular to a CNC machine tool for facilitating PCB board positioning. Background Technology

[0002] PCB, or Printed Circuit Board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical interconnections. Because it is manufactured using electronic printing techniques, it is called a "printed" circuit board.

[0003] PCB boards are usually processed by CNC machine tools. Before processing, the first step is to position the PCB board.

[0004] Existing positioning devices use multiple clamping tools to hold the PCB board through several rigid components. During the positioning and clamping process, the PCB board is manually operated by the clamping tools, which may damage the PCB board and increase the defect rate. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a CNC machine tool for facilitating PCB board positioning, which can avoid manual installation and disassembly of PCB boards, reduce damage to PCB boards during positioning, and reduce the PCB board defect rate.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A CNC machine tool for facilitating PCB board positioning includes a CNC machine tool body, the CNC machine tool body including a processing table and a working part, the working part being located directly above the processing table, and a positioning component being placed on the processing table, the positioning component defining the position of the PCB board;

[0008] The positioning component includes an air supply component, which fixes the position of the PCB board.

[0009] By adopting the above technical solution, the PCB board is positioned by moving other components in the positioning component through the air supply component, avoiding manual installation and removal of the PCB board, reducing damage to the PCB board during the positioning process, and lowering the PCB board defect rate.

[0010] In a preferred embodiment, the present invention can be further configured as follows: the positioning component includes a moving part and four hollow tubes, the moving part is disposed on the top of the processing table, the moving part drives the four hollow tubes to move, and a pin is slidably sleeved on each of the four hollow tubes, and a spring is disposed between the pin and the corresponding hollow tube;

[0011] The positioning component also includes a riser tube, which is fixed to the top of the processing table. The top of the riser tube is provided with a floppy disk with a trumpet-shaped opening. A first through hole is provided on one side of the floppy disk, and the first through hole is located on the outer circumferential surface of the upper half of the riser tube.

[0012] A connecting pipe is provided between the riser and each of the hollow tubes, and the riser is internally connected to the four hollow tubes.

[0013] By adopting the above technical solution, gas enters the hollow tube and drives the pin to move upward, so that the pin passes through the pre-made hole on the PCB. At the same time, the spring ensures that the pin and the corresponding hollow tube will not separate. In addition, gas enters the riser from the hollow tube, and the airflow accelerates, so that the floppy disk is always attached to the bottom of the PCB, further positioning the PCB and restricting its position, while also supporting the middle part of the PCB.

[0014] In a preferred embodiment, the present invention can be further configured as follows: the moving part includes four sliding blocks, the top of the processing table is provided with four sliding grooves, the sliding blocks are located inside the corresponding sliding grooves, a lead screw is horizontally rotatably arranged inside the sliding groove, the lead screw passes through the corresponding sliding block and is threadedly connected to the sliding block, a first fixing rod is provided at one end of the lead screw, one end of the first fixing rod passes through the processing table, and a knob is fixed at the end of the first fixing rod away from the corresponding lead screw.

[0015] By adopting the above technical solution, the first fixed rod can be easily rotated by a knob. The first fixed rod drives the lead screw to rotate, and the lead screw drives the corresponding sliding block to move inside the sliding groove, thereby changing the position of each hollow tube and ultimately changing the position of each pin, so that the device can adapt to PCB boards of different sizes.

[0016] In a preferred embodiment, the present invention can be further configured such that: a second fixing rod is provided on the top of the sliding block, a rotating tube is rotatably sleeved on the outer circumferential surface of the second fixing rod, a rotating disk is fixed on the top of the rotating tube, and one end of the hollow tube is fixed to the top of the corresponding rotating disk.

[0017] By adopting the above technical solution, a rotatable rotating disk is provided. By rotating the rotating disk, the position of the hollow tube on the rotating disk is changed. At this time, the hollow tube is located at the center of the rotating disk, which further expands the application range of the device.

[0018] In a preferred embodiment, the present invention may be further configured such that a limit assembly is provided between the rotating tube and the corresponding second fixed rod;

[0019] The limiting component includes four electromagnets, some of which are fixed on the top of the corresponding sliding block, and the electromagnets are located directly below the corresponding rotating tube.

[0020] By adopting the above technical solution, using an electromagnet and a rotating tube made of iron material, once the position of the hollow tube is determined, the rotating disk is prevented from rotating on its own.

[0021] In a preferred embodiment, the present invention can be further configured as follows: the air delivery component includes an air delivery part, a receiving part, and an air intake part, all of which are disposed on the ground. The air delivery part, the receiving part, and the air intake part are connected in sequence through air pipes. One end of the air delivery part is divided into several branches and connected to the interior of the corresponding hollow pipe.

[0022] The air intake section is connected to the riser via an air tube.

[0023] By adopting the above technical solution, the intake section is responsible for drawing the gas inside the riser into the receiving section, which stores the gas, and the delivery section is responsible for delivering the gas into the hollow tube.

[0024] In a preferred embodiment, the present invention can be further configured such that: the vertical cross-section of the end of the through pipe near the riser is tapered, and the area of ​​the tapered end of the through pipe near the riser is smaller;

[0025] The riser has a tapered tube inside, with the larger end of the tapered tube close to the through pipe, and the tapered tube is connected to the inside of the air intake section.

[0026] By adopting the above technical solution, one end of the tube is designed to be tapered, with a large opening at one end and a small opening at the other. The airflow enters from the large opening and enters from the small opening, thereby increasing the flow rate and achieving the purpose of keeping the floppy disk tightly attached to the bottom of the PCB board.

[0027] In summary, the present invention has at least one of the following beneficial technical effects:

[0028] 1. By using the air supply component to drive the movement of other components in the positioning component, the PCB board is positioned, avoiding manual installation and removal of the PCB board, reducing damage to the PCB board during the positioning process, and lowering the PCB board defect rate.

[0029] 2. Gas enters the hollow tube and drives the pin upward, allowing the pin to pass through the pre-made hole on the PCB. At the same time, the spring ensures that the pin and the corresponding hollow tube will not separate. In addition, gas enters the riser from the hollow tube, and the airflow accelerates, causing the floppy disk to remain attached to the bottom of the PCB, further positioning the PCB and restricting its position, while also supporting the middle part of the PCB.

[0030] 3. The first fixed rod can be easily rotated by a knob. The first fixed rod drives the lead screw to rotate, and the lead screw drives the corresponding sliding block to move inside the sliding groove, thereby changing the position of each hollow tube and ultimately changing the position of each pin, so that the device can adapt to PCB boards of different sizes.

[0031] 4. The intake section is responsible for drawing the gas from inside the riser into the receiving section, which stores the gas. The delivery section is responsible for delivering the gas into the hollow tube. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0033] Figure 2 yes Figure 1 Enlarged structural diagram at point A in the middle;

[0034] Figure 3 yes Figure 1 Enlarged structural diagram at point B;

[0035] Figure 4 yes Figure 1 Enlarged structural diagram at point C.

[0036] In the diagram, 1. CNC machine tool body; 11. Machining table; 12. Working part; 2. Positioning assembly; 5. Air supply assembly; 3. Moving part; 21. Hollow tube; 22. Pin; 23. Spring; 24. Vertical tube; 25. Floppy disk; 251. First through hole; 252. Through tube; 31. Sliding block; 32. Sliding groove; 33. Lead screw; 34. First fixed rod; 35. Knob; 36. Second fixed rod; 37. Rotating tube; 38. Rotating disk; 4. Limiting assembly; 41. Electromagnet; 51. Air supply part; 52. Receiving part; 53. Air intake part; 6. Conical tube. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings.

[0038] Example:

[0039] Reference Figures 1-4 As shown, the present invention discloses a CNC machine tool for facilitating PCB board positioning, comprising a CNC machine tool body 1, which includes a processing table 11 and a working part 12, with the working part 12 located directly above the processing table 11. The working part 12 processes the PCB board placed on the processing table 11.

[0040] Positioning component 2 is placed on the processing table 11, and positioning component 2 defines the position of the PCB board.

[0041] The positioning component 2 includes a moving part 3. The moving part 3 includes four sliding blocks 31. The top of the processing table 11 has four sliding grooves 32. The sliding blocks 31 are located inside the corresponding sliding grooves 32. A lead screw 33 is horizontally rotatably mounted inside the sliding groove 32. The lead screw 33 passes through the corresponding sliding block 31 and is threadedly connected to the sliding block 31. A first fixing rod 34 is provided at one end of the lead screw 33. One end of the first fixing rod 34 passes through the processing table 11. A knob 35 is fixed at the end of the first fixing rod 34 away from the corresponding lead screw 33. The first fixing rod 34 can be easily rotated by the knob 35, and the first fixing rod 34 drives the lead screw 33 to rotate.

[0042] The top of the sliding block 31 is provided with a second fixing rod 36, and the outer circumferential surface of the second fixing rod 36 is rotatably sleeved with a rotating tube 37, and the top of the rotating tube 37 is fixed with a rotating disk 38.

[0043] The device is equipped with a rotatable disc 38, which further expands its range of applications.

[0044] A limiting component 4 is provided between the rotating tube 37 and the corresponding second fixed rod 36; the limiting component 4 includes four electromagnets 41, some of which are fixed on the top of the corresponding sliding block 31 and are located directly below the corresponding rotating tube 37.

[0045] By using an electromagnet 41 and a rotating tube 37 made of iron, the position of the hollow tube 21 is determined, preventing the rotating disk 38 from rotating on its own.

[0046] The positioning component 2 includes an air supply component 5. The air supply component 5 drives the movement of other components in the positioning component 2 to position the PCB board, avoiding manual installation and removal of the PCB board, reducing damage to the PCB board during the positioning process, and lowering the PCB board defect rate.

[0047] The positioning assembly 2 also includes four hollow tubes 21. The moving part 3 drives the four hollow tubes 21 to move. One end of the hollow tube 21 is fixed to the top of the corresponding rotating disk 38. Each of the four hollow tubes 21 is slidably fitted with a pin 22, and a spring 23 is provided between the pin 22 and the corresponding hollow tube 21. The positioning assembly 2 also includes a vertical tube 24, which is fixed to the top of the processing table 11. The top of the vertical tube 24 is provided with a floppy disk 25 with a trumpet-shaped opening. A first through hole 251 is opened on one side of the floppy disk 25, and the first through hole 251 is located on the outer circumferential surface of the upper half of the vertical tube 24.

[0048] A connecting pipe 252 is provided between the riser 24 and several hollow pipes 21, and the riser 24 is internally connected to the four hollow pipes 21.

[0049] The air supply assembly 5 includes an air supply section 51, a receiving section 52, and an air intake section 53. The air supply section 51, the receiving section 52, and the air intake section 53 are all located on the ground. The air supply section 51, the receiving section 52, and the air intake section 53 are connected in sequence through air pipes. One end of the air supply section 51 is divided into several branches and connected to the interior of the corresponding hollow pipe 21. The air intake section 53 is connected to the riser pipe 24 through an air pipe.

[0050] The vertical section of the end of the through pipe 252 near the riser 24 is tapered, and the area of ​​the tapered end of the through pipe 252 near the riser 24 is smaller; a tapered tube 6 is provided inside the riser 24, and the end of the tapered tube 6 with a larger area is close to the through pipe 252. The tapered tube 6 is connected to the inside of the suction section 53.

[0051] The intake section 53 is responsible for drawing the gas inside the riser 24 into the receiving section 52, which stores the gas. The delivery section 51 is responsible for delivering the gas into the hollow tube 21.

[0052] The implementation principle of the above embodiments is as follows:

[0053] When starting preparations, the operator first adjusts the position of the sliding block 31 and the rotating disk 38 according to the size of the PCB to be processed.

[0054] The operator rotates the knob 35, which drives the first fixed rod 34 to rotate. The first fixed rod 34 drives the lead screw 33 to rotate, and the lead screw 33 drives the corresponding sliding block 31 to move along the direction of the corresponding sliding groove 32.

[0055] The sliding block 31 drives the corresponding second fixed rod 36 to move, and the second fixed rod 36 drives the rotating tube 37 to move. The rotating tube 37 drives the rotating disk 38 to move.

[0056] After the operator adjusts the positions of the four sliding blocks 31, the operator first turns off the power, temporarily disabling the electromagnet 41. The operator then rotates the rotating disk 38, which in turn moves the corresponding hollow tube 21. The hollow tube 21 is positioned at the center of the corresponding rotating disk 38.

[0057] Once the rotating disk 38 is positioned correctly, the operator connects the power supply and activates the electromagnet 41. The electromagnet 41 drives the corresponding rotating tube 37 to move downwards. The rotating tube 37 rotates in relation to the corresponding second fixed rod 36. Furthermore, the rotating tube 37 can move along the straight line of the second fixed rod 36.

[0058] The rotating tube 37 is in contact with the electromagnet 41, and at this time the position of the rotating tube 37 is fixed.

[0059] Finally, the operator places the PCB board on the four hollow tubes. When no other material enters the hollow tube 21, the spring 23 inside the hollow tube 21 keeps the pin 22 fully inside the corresponding hollow tube 21.

[0060] When the operator presses the PCB, the PCB touches the floppy disk 25. When the floppy disk 25 is not in contact with the PCB, it is bowl-shaped. After the PCB touches the floppy disk 25, the floppy disk 25 forms a flat surface, and the top of the floppy disk 25 is in complete contact with the bottom of the PCB.

[0061] Next, the operator connects the power supply and starts the suction unit 53 and the air delivery unit 51. The air delivery unit 51 delivers the gas from the receiving unit 52 into the four hollow tubes 21. The hollow tubes 21 are filled with gas, causing the spring 23 to undergo elastic deformation. The pin 22 inside the hollow tube 21 moves upward. The pin 22 passes through a pre-drilled hole on the PCB board.

[0062] The gas previously stored inside the hollow tube 21 flows into the riser tube 24 through the through-pipe 252 and then into the tapered tube 6. The gas flow rate inside the riser tube 24 is faster than that inside the hollow tube 21, creating a pressure difference that keeps the floppy disk 25 in a flat state. At this time, the floppy disk 25 continuously holds the PCB.

[0063] Next, the gas inside the riser 24 enters the intake section 53 and then enters the receiving section 52 and the supply section 51.

[0064] After the work begins, the gas inside the hollow tube 21 and the riser 24 is maintained, so that the existing position of the pin 22 remains unchanged.

[0065] At this time, the operator starts the work section 12 to process the PCB board.

[0066] After processing is completed, the operator turns off the power, and finally the gas completely enters the receiving part 52. At this time, the gas inside the hollow tube 21 and the riser 24 disappears, and the pin 22, under the action of the corresponding spring 23, is completely submerged inside the corresponding hollow tube 21.

[0067] Finally, the operator can easily remove the PCB board from the processing table 11.

[0068] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A CNC machine tool for facilitating PCB board positioning, comprising a CNC machine tool body (1), wherein the CNC machine tool body (1) includes a machining table (11) and a working part (12), wherein the working part (12) is located directly above the machining table (11), characterized in that, A positioning component (2) is placed on the processing table (11), and the positioning component (2) defines the position of the PCB board; The positioning component (2) includes an air supply component (5), which fixes the position of the PCB board; The positioning component (2) includes a moving part (3) and four hollow tubes (21). The moving part (3) is located on the top of the processing table (11). The moving part (3) drives the four hollow tubes (21) to move. Each of the four hollow tubes (21) is slidably fitted with a pin (22). A spring (23) is provided between the pin (22) and the corresponding hollow tube (21). The positioning component (2) also includes a riser (24), which is fixed to the top of the processing table (11). The top of the riser (24) is provided with a floppy disk (25) with a trumpet-shaped opening. A first through hole (251) is provided on one side of the floppy disk (25), and the first through hole (251) is located on the outer circumferential surface of the upper half of the riser (24). A through pipe (252) is provided between each of the riser (24) and the hollow pipes (21), and the riser (24) is internally connected to the four hollow pipes (21); The air delivery assembly (5) includes an air delivery section (51), a receiving section (52), and an air intake section (53). The air delivery section (51), the receiving section (52), and the air intake section (53) are all located on the ground. The air delivery section (51), the receiving section (52), and the air intake section (53) are connected in sequence through air pipes. One end of the air delivery section (51) is divided into several branches and connected to the interior of the corresponding hollow tube (21). The air intake (53) is connected to the riser (24) via an air tube.

2. The CNC machine tool for facilitating PCB board positioning according to claim 1, characterized in that: The moving part (3) includes four sliding blocks (31). The top of the processing table (11) is provided with four sliding grooves (32). The sliding blocks (31) are located inside the corresponding sliding grooves (32). A lead screw (33) is horizontally rotatably arranged inside the sliding grooves (32). The lead screw (33) passes through the corresponding sliding block (31) and is threadedly connected to the sliding block (31). A first fixing rod (34) is provided at one end of the lead screw (33). One end of the first fixing rod (34) passes through the processing table (11). A knob (35) is fixed at the end of the first fixing rod (34) away from the corresponding lead screw (33).

3. A CNC machine tool for facilitating PCB board positioning according to claim 2, characterized in that: The top of the sliding block (31) is provided with a second fixing rod (36), and the outer circumferential surface of the second fixing rod (36) is rotatably sleeved with a rotating tube (37). The top of the rotating tube (37) is fixed with a rotating disk (38), and one end of the hollow tube (21) is fixed to the top of the corresponding rotating disk (38).

4. A CNC machine tool for facilitating PCB board positioning according to claim 3, characterized in that: A limit assembly (4) is provided between the rotating tube (37) and the corresponding second fixed rod (36); The limiting component (4) includes four electromagnets (41), some of which are fixed on the top of the corresponding sliding block (31) and are located directly below the corresponding rotating tube (37).

5. A CNC machine tool for facilitating PCB board positioning according to claim 4, characterized in that: The vertical cross section of the conduit (252) near the riser (24) is tapered, and the area of ​​the tapered end of the conduit (252) near the riser (24) is smaller. The riser (24) has a tapered tube (6) inside, with the larger end of the tapered tube (6) close to the through tube (252), and the tapered tube (6) is connected to the inside of the air intake (53).

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