Circuit board air-floating shaft vibration drilling machine and operating method thereof

Abstract

The present invention relates to the technical field of circuit board processing, and in particular to a circuit board air-floating shaft vibration drilling machine and an operating method thereof. The machine comprises an air-floating component, a floating rotating shaft, and a magnetic induction component. The air-floating component has a movable space and a first air-floating bearing and a second air-floating bearing arranged around the movable space. The second air-floating bearing is located on one side of the first air-floating bearing. The movable space has a first distance in a first direction, and the movable space has a second distance in a second direction, and the second direction is perpendicular to the first direction. In this way, the technical problem of the circuit board drilling machine in the prior art that debris is difficult to discharge during the drilling process, which makes it difficult to ensure the precise control of the drilling depth and the smoothness of the hole edge, is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board processing, and in particular to a circuit board air-floating shaft vibration drilling machine and an operating method thereof. Background Art

[0002] In the modern electronics industry, printed circuit boards (PCBs) are key components of electronic devices, and their manufacturing precision and efficiency directly impact the performance and reliability of the entire device. Drilling, a core step in the PCB manufacturing process, directly determines the electrical connection performance and assembly accuracy of the PCB. However, existing PCB drilling machines present a series of technical challenges that need to be addressed during the drilling process.

[0003] Specifically, when drilling holes in printed circuit boards (PCBs), the drill needle of a PCB drilling machine typically produces debris in the holes formed by the drilling. For example, as the drilling depth of the drill machine gradually increases, if these debris are not discharged from the hole, they will remain and accumulate in the hole. This will not only easily affect the accuracy of the drill machine for the drilling depth, but also easily cause slight differences in the depth of multiple holes, thereby affecting the performance of the subsequent manufacturing of conductive vias. In addition, the debris remaining in the hole will hinder the drill needle from continuing to drill. For example, if these debris continue to remain and accumulate in the hole while the drill machine continues to drill, the drilled hole will easily produce rough edges, and these rough edges will reduce the performance of the printed circuit board.

[0004] In summary, in the circuit board drilling machine in the prior art, it is difficult to discharge debris during the drilling process, which makes it difficult to ensure the precise control of the drilling depth and the smoothness of the hole edge. Summary of the Invention

[0005] The purpose of the present invention is to provide a circuit board air-floating shaft vibration drilling machine and its operation method, aiming to solve the technical problem in the prior art that the circuit board drilling machine is difficult to discharge debris during the drilling process, which makes it difficult to ensure the precise control of the drilling depth and the smoothness of the hole edge.

[0006] To achieve the above objectives, the present invention adopts a circuit board air-floating shaft vibration drilling machine, comprising an air-floating assembly, a floating rotating shaft, and a magnetic induction assembly. The air-floating assembly has a movable space and a first air-floating bearing and a second air-floating bearing arranged around the movable space, the second air-floating bearing being located on one side of the first air-floating bearing. The movable space has a first distance in a first direction, and the movable space has a second distance in a second direction, and the second direction is perpendicular to the first direction.

[0007] The floating rotating shaft is arranged in the movable space, one end of the floating rotating shaft has a first magnetic part, the floating rotating shaft has a first bearing part arranged along the first direction and a second bearing part arranged along the second direction, the second bearing part is connected to the first bearing part, the first bearing part has a bearing width in the first direction, the second bearing part has a bearing thickness in the second direction, the bearing width is smaller than the first distance, and the bearing thickness is smaller than the second distance; so that the floating rotating shaft can float in the movable space through the first air bearing and the second air bearing, and a drill needle is provided on the floating rotating shaft;

[0008] The magnetic induction component is arranged on one side of the floating rotating shaft, and the magnetic induction component has a second magnetic part. The floating rotating shaft drives the drill bit on the floating rotating shaft to reciprocate in the second direction by changing the magnetic poles between the first magnetic part and the second magnetic part in the magnetic induction component.

[0009] The second air bearing has an upper half and a lower half, and the lower half is arranged corresponding to the upper half.

[0010] The first air bearing and the second air bearing of the air floating assembly are used to allow air to enter the movable space, so that the floating shaft floats in the movable space without contacting the upper and lower halves of the first and second air bearings.

[0011] In which, the first magnetic part has a first permanent magnet, the second magnetic part has a first annular electromagnetic coil, the first annular electromagnetic coil surrounds the first permanent magnet, and the first permanent magnet is arranged in the first hollow space of the second magnetic part, the floating rotating shaft and the magnetic induction component change the magnetic pole of the second magnetic part through the first annular electromagnetic coil so that the magnetic pole between the second magnetic part and the first permanent magnet changes to drive the floating rotating shaft to move back and forth in the second direction.

[0012] In which, the first magnetic part has a second permanent magnet, the second magnetic part has a second annular electromagnetic coil, and the second permanent magnet surrounds the second annular electromagnetic coil, and the second annular electromagnetic coil is arranged in the second hollow space of the first magnetic part, the floating rotating shaft and the magnetic induction component change the magnetic pole of the second magnetic part through the second annular electromagnetic coil so that the magnetic pole between the second magnetic part and the second permanent magnet changes to drive the floating rotating shaft to move back and forth in the second direction.

[0013] Among them, the first magnetic part has a third permanent magnet, the second magnetic part has a third annular electromagnetic coil, and the third permanent magnet is arranged on one side of the third annular electromagnetic coil. The floating rotating shaft and the magnetic induction component change the magnetic pole of the second magnetic part through the third annular electromagnetic coil so that the magnetic pole between the second magnetic part and the third permanent magnet changes to drive the floating rotating shaft to move back and forth in the second direction.

[0014] The present invention also provides an operating method of a circuit board air-floating shaft vibration drilling machine, which is applied to the circuit board air-floating shaft vibration drilling machine as described above.

[0015] The steps include:

[0016] Starting the circuit board air-floating shaft vibration drilling machine, and the drill needle on the circuit board air-floating shaft vibration drilling machine performs drilling processing;

[0017] At the same time, the magnetic poles between the second magnetic part and the first magnetic part are changed to drive the drill needle of the floating shaft to reciprocate in the second direction, thereby causing the drill needle to reciprocate in the drilled hole;

[0018] The drill needle moves back and forth in the drilled hole while carrying debris out of the hole.

[0019] When the floating shaft moves away from the magnetic induction component, a first distance between the lower surface of the second bearing portion and the lower half of the second air bearing is smaller than a second distance between the upper surface of the second bearing portion and the upper half of the second air bearing.

[0020] When the floating shaft moves toward the magnetic induction component, a third distance between the lower surface of the second bearing portion and the lower half of the second air bearing is greater than a fourth distance between the upper surface of the second bearing portion and the upper half of the second air bearing.

[0021] The present invention provides a circuit board air-floating shaft vibration drilling machine and an operating method thereof. First, the circuit board air-floating shaft vibration drilling machine is started, and the drill needle on the circuit board air-floating shaft vibration drilling machine performs drilling processing; at the same time, the magnetic pole between the second magnetic part and the first magnetic part is changed to drive the drill needle of the floating rotating shaft to reciprocate in the second direction, thereby causing the drill needle to reciprocate in the drilled hole; while the drill needle reciprocates in the drilled hole, it brings out debris from the hole, so that the drilled hole has a smooth edge to improve the situation where debris remains in the hole during drilling and produces rough edges, which can improve the performance of the printed circuit board after drilling. When the floating rotating shaft is away from the When the magnetic induction component moves, the first distance between the lower surface of the second bearing part and the lower half of the second air bearing is smaller than the second distance between the upper surface of the second bearing part and the upper half of the second air bearing; when the floating shaft moves toward the magnetic induction component, the third distance between the lower surface of the second bearing part and the lower half of the second air bearing is larger than the fourth distance between the upper surface of the second bearing part and the upper half of the second air bearing. In this way, the technical problem that the circuit board drilling machine in the prior art is difficult to discharge debris during the drilling process, which makes it difficult to ensure the precise control of the drilling depth and the smoothness of the hole edge is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic cross-sectional structural diagram of the first embodiment of the present invention.

[0024] Figure 2 It is a schematic cross-sectional view of a local structure of the first embodiment of the present invention.

[0025] Figure 3 FIG. 1 is a cross-sectional view of the floating shaft of the first embodiment of the present invention when it moves.

[0026] Figure 4 FIG. 1 is a cross-sectional view of the floating shaft of the first embodiment of the present invention when it moves in the other direction.

[0027] Figure 5 It is a schematic diagram of the first permanent magnet and controller of the present invention.

[0028] Figure 6It is a schematic cross-sectional view of the partial structure of the floating shaft and the magnetic induction component according to the second embodiment of the present invention.

[0029] Figure 7 FIG. 1 is a schematic cross-sectional view of a partial structure of a floating shaft and a magnetic induction component according to a third embodiment of the present invention.

[0030] Figure 8 The present invention is a flowchart of the operating method of the circuit board air-floating shaft vibration drilling machine.

[0031] 100-Circuit Board Air-Floating Shaft Vibration Drilling Machine, 110-Air-Floating Assembly, 111-Movable Space, 112-First Air-Floating Bearing, 113-Upper Section, 114-Second Air-Floating Bearing, 115-Lower Section, 116-Stator, 120-Floating Rotating Shaft, 121-First Magnetic Section, 122-First Bearing, 123A-First Permanent Magnet, 123B-Third Permanent Magnet, 123C-Third Permanent Magnet, 124-Second Bearing, 125-Upper Surface, 126-Drilling Needle, 127 -lower surface, 128-rotor part, 130-magnetic induction component, 131-second magnetic part, 132A-first annular electromagnetic coil, 132B-second annular electromagnetic coil, 132C-third annular electromagnetic coil, A1-first distance, A2-second distance, B1-bearing width, B2-bearing thickness, C1-first hollow space, C2-second hollow space, D1-first direction, D2-second direction, P1-first spacing, P2-second spacing, P3-third spacing, P4-fourth spacing. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] The first embodiment of this application is:

[0034] See also Figures 1 to 5 ,in Figure 1 It is a schematic cross-sectional structural diagram of the first embodiment of the present invention. Figure 2 It is a schematic cross-sectional view of a local structure of the first embodiment of the present invention. Figure 3 FIG. 1 is a cross-sectional view of the floating shaft of the first embodiment of the present invention when it moves. Figure 4 FIG. 1 is a cross-sectional view of the floating shaft of the first embodiment of the present invention when it moves in the other direction. Figure 5 It is a schematic diagram of the first permanent magnet and controller of the present invention.

[0035] The present invention provides a circuit board air-floating shaft vibration drilling machine, comprising an air-floating assembly 110, a floating rotating shaft 120, and a magnetic induction assembly 130. The air-floating assembly 110 has a movable space 111 and a first air-floating bearing 112 and a second air-floating bearing 114 disposed around the movable space 111. The second air-floating bearing 114 is located on one side of the first air-floating bearing 112. The movable space 111 has a first distance A1 in a first direction D1 and a second distance A2 in a second direction D2. The second direction D2 is perpendicular to the first direction D1.

[0036] The floating shaft 120 is arranged in the movable space 111. One end of the floating shaft 120 has a first magnetic portion 121. The floating shaft 120 has a first bearing portion 122 arranged along a first direction D1 and a second bearing portion 124 arranged along a second direction D2. The second bearing portion 124 is connected to the first bearing portion 122. The first bearing portion 122 has a bearing width B1 in the first direction D1, and the second bearing portion 124 has a bearing thickness B2 in the second direction D2. The bearing width B1 is smaller than the first distance A1, and the bearing thickness B2 is smaller than the second distance A2. This allows the floating shaft 120 to float in the movable space 111 through the first air bearing 112 and the second air bearing 114. A drill needle 126 is provided on the floating shaft 120.

[0037] The magnetic induction component 130 is arranged on one side of the floating shaft 120. The magnetic induction component 130 has a second magnetic part 131. The floating shaft 120 drives the drill bit 126 on the floating shaft 120 to move back and forth in the second direction D2 by changing the magnetic pole between the first magnetic part 121 and the second magnetic part 131 in the magnetic induction component 130.

[0038] In this embodiment, the second air bearing 114 of the air flotation assembly 110 is disposed below the first air bearing 112. The movable space 111 inside the air flotation assembly 110 is hollow and has a first distance A1 in the first direction D1 and a second distance A2 in a second direction D2 perpendicular to the first direction D1.

[0039] The first air bearing 112 and the second air bearing 114 of the air floating assembly 110 are used to allow air to enter the movable space 111 , so that the floating shaft 120 floats in the movable space 111 without contacting the upper section 113 and the lower section 115 of the first air bearing 112 and the second air bearing 114 ;

[0040] In addition, the rotor portion 128 of the floating shaft 120 can rotate with the stator portion 116 of the air float assembly 110 , so that the floating shaft 120 rotates clockwise or counterclockwise to perform drilling.

[0041] Specifically, the bearing width B1 is smaller than the first distance A1 of the movable space 111, and the bearing thickness B2 is smaller than the second distance A2 of the movable space 111, so that the floating shaft 120 can move slightly up, down, left, and right in the movable space 111 through the first air bearing 112 and the second air bearing 114, thereby improving the mobility of the floating shaft 120 when drilling.

[0042] Furthermore, the floating shaft 120 and the magnetic sensing assembly 130 can drive the drill 126 of the floating shaft 120 to reciprocate in the second direction D2 (i.e., the vertical direction) by changing the magnetic polarity between the first magnetic portion 121 and the second magnetic portion 131. Specifically, this change in magnetic polarity allows the drill 126 of the floating shaft 120 to perform a slight up-and-down reciprocating motion while drilling. This allows the drill 126 to remove debris from the hole while drilling a printed circuit board (PCB), thereby improving the required drilling depth accuracy of the PCB air-floating shaft vibration drilling machine 100. Furthermore, while the drill 126 of the floating shaft 120 reciprocates up and down to remove debris from the hole, it also simultaneously removes the chips, resulting in a smooth edge to the drilled hole. This improves the performance of the PCB after drilling.

[0043] Among them, the first magnetic part 121 has a first permanent magnet 123A, and the second magnetic part 131 has a first annular electromagnetic coil 132A. The first annular electromagnetic coil 132A surrounds the first permanent magnet 123A, and the first permanent magnet 123A is arranged in the first hollow space C1 of the second magnetic part 131. The floating shaft 120 and the magnetic induction component 130 change the magnetic pole of the second magnetic part 131 through the first annular electromagnetic coil 132A so that the magnetic pole between the second magnetic part 131 and the first permanent magnet 123A changes to drive the floating shaft 120 to move back and forth in the second direction D2.

[0044] In this specific embodiment, when the adjacent end of the first permanent magnet 123A is the north pole and the first annular electromagnetic coil 132A is energized so that the second magnetic portion 131 is the north pole, a repulsive force is generated to move the floating shaft 120 away from the magnetic induction component 130, that is, downward.

[0045] On the other hand, when the adjacent end of the first permanent magnet 123A is the N pole and the first annular electromagnetic coil 132A is energized so that the second magnetic part 131 is the S pole, an attractive force is generated to allow the floating shaft 120 to move closer to the magnetic induction component 130, that is, move upward, so that the floating shaft 120 can move back and forth up and down along the second direction D2 through the action of the first annular electromagnetic coil 132A.

[0046] Please refer to Figure 3 and Figure 4 ,At Figure 3 and Figure 4 In the embodiment, the second air bearing 114 has an upper section 113 and a lower section 115. When the floating shaft 120 moves away from the magnetic induction assembly 130 (i.e., when a repulsive force is generated), a first spacing P1 between a lower surface 127 of the second bearing portion 124 of the floating shaft 120 and the lower section 115 of the second air bearing 114 is smaller than a second spacing P2 between an upper surface 125 of the second bearing portion 124 of the floating shaft 120 and the upper section 113 of the second air bearing 114.

[0047] Furthermore, when the floating shaft 120 moves toward the magnetic sensing element 130 (i.e., when an attractive force is generated), the third spacing P3P3 between the lower surface 127 of the second bearing portion 124 of the floating shaft 120 and the lower section 115 of the second air bearing 114 is greater than the fourth spacing P4 between the upper surface 125 of the second bearing portion 124 of the floating shaft 120 and the upper section 113 of the second air bearing 114. For example, the first spacing P1, the second spacing P2, the third spacing P3, and the fourth spacing P4 are all less than 50 mm, indicating that the floating shaft 120 can move slightly up and down along the second direction D2.

[0048] For the second embodiment, please refer to Figure 6 , Figure 6 It is a schematic cross-sectional view of the partial structure of the floating shaft and the magnetic induction component according to the second embodiment of the present invention.

[0049] Different from the first embodiment, the first magnetic part 121 has a second permanent magnet 123B, the second magnetic part 131 has a second annular electromagnetic coil 132B, and the second permanent magnet 123B surrounds the second annular electromagnetic coil 132B, and the second annular electromagnetic coil 132B is arranged in the second hollow space C2 of the first magnetic part 121. The floating shaft 120 and the magnetic induction component 130 change the magnetic pole of the second magnetic part 131 through the second annular electromagnetic coil 132B so that the magnetic pole between the second magnetic part 131 and the second permanent magnet 123B changes to drive the floating shaft 120 to move back and forth in the second direction D2.

[0050] For the third embodiment, please refer to Figure 7 , Figure 7 FIG. 1 is a schematic cross-sectional view of a partial structure of a floating shaft and a magnetic induction component according to a third embodiment of the present invention.

[0051] Different from the first embodiment, the first magnetic part 121 has a third permanent magnet 123C, the second magnetic part 131 has a third annular electromagnetic coil 132C, and the third permanent magnet 123C is arranged on one side of the third annular electromagnetic coil 132C. The floating shaft 120 and the magnetic induction component 130 change the magnetic pole of the second magnetic part 131 through the third annular electromagnetic coil 132C so that the magnetic pole between the second magnetic part 131 and the third permanent magnet 123C changes to drive the floating shaft 120 to move back and forth in the second direction D2.

[0052] See also Figure 8 , Figure 8 The present invention is a flowchart of the operating method of the circuit board air-floating shaft vibration drilling machine.

[0053] The present invention also provides an operating method of a circuit board air-floating shaft vibration drilling machine, which is applied to the circuit board air-floating shaft vibration drilling machine as described above.

[0054] The steps include:

[0055] The circuit board air-floating shaft vibration drilling machine 100 is started, and the drill needle 126 on the circuit board air-floating shaft vibration drilling machine 100 performs drilling processing;

[0056] At the same time, the magnetic poles between the second magnetic portion 131 and the first magnetic portion 121 are changed to drive the drill needle 126 of the floating shaft 120 to reciprocate in the second direction D2, thereby causing the drill needle 126 to reciprocate in the drilled hole.

[0057] The drill needle 126 moves back and forth in the drilled hole while removing debris from the hole.

[0058] The operating method of the circuit board air-floating shaft vibration drilling machine 100 of the present invention is as follows:

[0059] First, the floating shaft 120 can be set in the movable space 111 of the air floating component 110, wherein the air floating component 110 has the first air floating bearing 112 arranged around the movable space 111 and the second air floating bearing 114 surrounding the movable space 111 and arranged on one side of the first air floating bearing 112, and the movable space 111 has a first distance A1 in the first direction D1, and the movable space 111 has a second distance A2 in the second direction D2 perpendicular to the first direction D1.

[0060] Then, the floating shaft 120 can float in the movable space 111 through the first air bearing 112 and the second air bearing 114, wherein the floating shaft 120 has a first bearing portion 122 arranged along the first direction D1 and a second bearing portion 124 connected to the first bearing portion 122 and arranged along the second direction D2, the first bearing portion 122 has a bearing width B1 in the first direction D1, and the second bearing portion 124 has a bearing thickness B2 in the second direction D2, the bearing width B1 is smaller than the first distance A1 and the bearing thickness B2 is smaller than the second distance A2.

[0061] Then, the magnetic polarity between the second magnetic portion 131 of the magnetic induction component 130 and the first magnetic portion 121 of the floating shaft 120 may be changed to drive the drill bit 126 of the floating shaft 120 to reciprocate in the second direction D2.

[0062] Please refer to Figure 8 , Figure 8 A block diagram of the first annular electromagnetic coil 132A and a controller according to one embodiment of the present disclosure is shown. The controller is electrically connected to the first annular electromagnetic coil 132A and can control the direction of the current generated by the first annular electromagnetic coil 132A, thereby generating an attractive or repulsive force.

[0063] Specifically, when the floating shaft 120 moves away from the magnetic induction assembly 130 (i.e., when a repulsive force is generated), a first spacing P1 between the lower surface 127 of the second bearing portion 124 of the floating shaft 120 and the lower half 115 of the second air bearing 114 is smaller than a second spacing P2 between the upper surface 125 of the second bearing portion 124 of the floating shaft 120 and the upper half 113 of the second air bearing 114. Furthermore, when the floating shaft 120 moves toward the magnetic induction assembly 130 (i.e., when an attractive force is generated), a third spacing P3 between the lower surface 127 of the second bearing portion 124 of the floating shaft 120 and the lower half 115 of the second air bearing 114 is larger than a fourth spacing P4 between the upper surface 125 of the second bearing portion 124 of the floating shaft 120 and the upper half 113 of the second air bearing 114.

[0064] To sum up, the bearing width B1 of the floating shaft 120 of the circuit board air-floating shaft vibration drilling machine 100 is smaller than the first distance A1 of the movable space 111, and the bearing thickness B2 of the floating shaft 120 is smaller than the second distance A2 of the movable space 111, so that the floating shaft 120 can move slightly up, down, left and right in the movable space 111 through the first air-floating bearing 112 and the second air-floating bearing 114, which can improve the mobility of the floating shaft 120 when drilling.

[0065] In addition, the floating shaft 120 and the magnetic induction component 130 can drive the drill needle 126 of the floating shaft 120 to reciprocate in the second direction D2 (i.e., the vertical direction) by changing the magnetic poles between the first magnetic part 121 and the second magnetic part 131. That is, the change in magnetic poles can allow the drill needle 126 of the floating shaft 120 to perform slight up and down reciprocating motion when drilling. Therefore, when the drill needle 126 drills a printed circuit board, debris can be removed from the hole, which can improve the accuracy of the drilling depth requirement of the circuit board air-floating shaft vibration drilling machine 100.

[0066] In addition, when the drill needle 126 of the floating shaft 120 reciprocates up and down to remove debris in the hole, it can also simultaneously perform a chip cutting action, so that the drilled hole has a smooth edge to improve the situation where debris remains in the hole during drilling and produces rough edges, which can improve the performance of the printed circuit board after drilling.

[0067] Using a circuit board air-floating shaft vibration drilling machine and an operating method thereof of the present invention, first start the circuit board air-floating shaft vibration drilling machine 100, and the drill needle 126 on the circuit board air-floating shaft vibration drilling machine 100 performs drilling processing; at the same time, the magnetic pole between the second magnetic part 131 and the first magnetic part 121 is changed to drive the drill needle 126 of the floating shaft 120 to reciprocate in the second direction D2, thereby causing the drill needle 126 to reciprocate in the drilled hole; while the drill needle 126 reciprocates in the drilled hole, it brings out debris from the hole, so that the drilled hole has a smooth edge to improve the situation where debris remains in the hole during drilling and produces a rough edge, which can improve the performance of the printed circuit board after drilling. When the floating shaft 120 moves away from the magnetic induction component 130, the The first spacing P1 between the lower surface 127 of the second bearing portion 124 and the lower half 115 of the second air bearing 114 is smaller than the second spacing P2 between the upper surface 125 of the second bearing portion 124 and the upper half 113 of the second air bearing 114; when the floating shaft 120 moves toward the magnetic induction component 130, the third spacing P3 between the lower surface 127 of the second bearing portion 124 and the lower half 115 of the second air bearing 114 is larger than the fourth spacing P4 between the upper surface 125 of the second bearing portion 124 and the upper half 113 of the second air bearing 114. In this way, the technical problem that the circuit board drilling machine in the prior art is difficult to discharge debris during the drilling process, which makes it difficult to ensure the precise control of the drilling depth and the smoothness of the hole edge is solved.

[0068] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A circuit board air-floating shaft vibration drilling machine, characterized in that: The invention comprises an air flotation component, a floating shaft and a magnetic induction component, wherein the air flotation component has a movable space and a first air flotation bearing and a second air flotation bearing arranged around the movable space, wherein the second air flotation bearing is located on one side of the first air flotation bearing, the movable space has a first distance in a first direction, and the movable space has a second distance in a second direction, and the second direction is perpendicular to the first direction; The floating rotating shaft is arranged in the movable space, one end of the floating rotating shaft has a first magnetic part, the floating rotating shaft has a first bearing part arranged along the first direction and a second bearing part arranged along the second direction, the second bearing part is connected to the first bearing part, the first bearing part has a bearing width in the first direction, the second bearing part has a bearing thickness in the second direction, the bearing width is smaller than the first distance, and the bearing thickness is smaller than the second distance; so that the floating rotating shaft can float in the movable space through the first air bearing and the second air bearing, and a drill needle is provided on the floating rotating shaft; The magnetic induction component is arranged on one side of the floating rotating shaft, and the magnetic induction component has a second magnetic part. The floating rotating shaft drives the drill bit on the floating rotating shaft to reciprocate in the second direction by changing the magnetic poles between the first magnetic part and the second magnetic part in the magnetic induction component.

2. The circuit board air-floating shaft vibration drilling machine according to claim 1, characterized in that: The second air bearing has an upper half and a lower half, and the lower half is arranged corresponding to the upper half.

3. The circuit board air-floating shaft vibration drilling machine according to claim 2, characterized in that: The first air bearing and the second air bearing of the air floating assembly are used to allow air to enter the movable space, so that the floating shaft floats in the movable space without contacting the upper and lower halves of the first and second air bearings.

4. The circuit board air-floating shaft vibration drilling machine according to claim 3, characterized in that: The first magnetic part has a first permanent magnet, and the second magnetic part has a first annular electromagnetic coil. The first annular electromagnetic coil surrounds the first permanent magnet, and the first permanent magnet is arranged in the first hollow space of the second magnetic part. The floating shaft and the magnetic induction component change the magnetic pole of the second magnetic part through the first annular electromagnetic coil so that the magnetic pole between the second magnetic part and the first permanent magnet changes to drive the floating shaft to move back and forth in the second direction.

5. The circuit board air-floating shaft vibration drilling machine according to claim 3, characterized in that: The first magnetic part has a second permanent magnet, the second magnetic part has a second annular electromagnetic coil, and the second permanent magnet surrounds the second annular electromagnetic coil, and the second annular electromagnetic coil is arranged in the second hollow space of the first magnetic part. The floating rotating shaft and the magnetic induction component change the magnetic pole of the second magnetic part through the second annular electromagnetic coil so that the magnetic pole between the second magnetic part and the second permanent magnet changes to drive the floating rotating shaft to move back and forth in the second direction.

6. The circuit board air-floating shaft vibration drilling machine and its operating method according to claim 3, characterized in that: The first magnetic part has a third permanent magnet, the second magnetic part has a third annular electromagnetic coil, and the third permanent magnet is arranged on one side of the third annular electromagnetic coil. The floating rotating shaft and the magnetic induction component change the magnetic pole of the second magnetic part through the third annular electromagnetic coil so that the magnetic pole between the second magnetic part and the third permanent magnet changes to drive the floating rotating shaft to move back and forth in the second direction.

7. An operating method of a circuit board air-bearing shaft vibration drilling machine, applied to the circuit board air-bearing shaft vibration drilling machine according to claim 4, characterized in that: The steps include: Starting the circuit board air-floating shaft vibration drilling machine, and the drill needle on the circuit board air-floating shaft vibration drilling machine performs drilling processing; At the same time, the magnetic poles between the second magnetic part and the first magnetic part are changed to drive the drill needle of the floating shaft to reciprocate in the second direction, thereby causing the drill needle to reciprocate in the drilled hole; The drill needle moves back and forth in the drilled hole while carrying debris out of the hole.

8. The operating method of the circuit board air-floating shaft vibration drilling machine according to claim 7, characterized in that: When the floating shaft moves away from the magnetic induction component, a first distance between the lower surface of the second bearing portion and the lower half of the second air bearing is smaller than a second distance between the upper surface of the second bearing portion and the upper half of the second air bearing.

9. The operating method of the circuit board air-floating shaft vibration drilling machine according to claim 8, characterized in that: When the floating shaft moves toward the magnetic induction component, a third distance between the lower surface of the second bearing portion and the lower half of the second air bearing is greater than a fourth distance between the upper surface of the second bearing portion and the upper half of the second air bearing.

Images