PCB multi-axis drilling machine

Abstract

The application relates to the technical field of PCB processing equipment, in particular to a PCB multi-shaft drilling machine, which comprises a drilling machine and a drilling unit, the drilling unit is fixedly arranged on the side of the drilling machine, is used for drilling and trimming of a PCB circuit board, the number of the drilling units is multiple, the multiple drilling units are equidistantly distributed left and right, drilling frames are fixedly installed on the top of the drilling machine, the positions of the drilling frames correspond to the positions of the drilling units, the number of the drilling frames is multiple, and the multiple drilling frames are equidistantly distributed left and right. In the process of rotation of the sleeve, the two guide wheels are matched with the elastic force of the upper end face path groove, so that the guide wheels roll along the path at the bottom of the end face path groove, then the two sliding rods drive the two sliding blocks to move up and down along the sliding hole one, the two sliding blocks drive the two drill bits to move up and down at the same time, the inner wall of the drilled PCB circuit board hole is trimmed, and burrs in the hole are reduced.

Description

Technical Field

[0001] This invention relates to the field of PCB processing equipment technology, specifically a PCB multi-axis drilling machine. Background Technology

[0002] According to a Chinese patent application with publication number 202323305541.9, a multi-axis drilling machine is disclosed, which can simultaneously use multiple spindle mechanisms to drill holes in the same material plate, saving processing time and improving processing efficiency. In addition, the multi-axis drilling machine of this utility model adopts an air-floating spindle mechanism with a spindle and an air-floating sleeve, which is lower in cost than the traditional clamping type (the spindle is clamped and driven by a clamping structure) spindle structure. Moreover, since the drive component only needs to drive the spindle to move, the energy consumption at the drive component can be reduced.

[0003] During the production of printed circuit boards (PCBs) using the aforementioned drilling machine, burrs may be generated inside the holes after drilling. These burrs not only affect product quality but also reduce signal transmission strength and mechanical strength. If the burrs are too large, they are easily ground into the holes during the grinding process, resulting in burrs inside the holes. Burrs with excessively large hole diameters can easily puncture the dry film after subsequent circuit fabrication and dry film application, resulting in holes without copper. At the same time, burrs may cause tiny scratches on the board surface, leading to cracking of the board surface. To address these issues, we propose a PCB multi-axis drilling machine. Summary of the Invention

[0004] This invention provides the following technical solution: a PCB multi-axis drilling machine, comprising:

[0005] Drilling machine;

[0006] A drilling unit is fixedly mounted on the side of the drilling machine for drilling and trimming PCB circuit boards. There are multiple drilling units, equidistantly distributed from left to right. Each drilling unit includes:

[0007] A linear motor is fixedly mounted on the side of the drilling machine;

[0008] The upright plate is fixedly installed at the output end of the linear motor.

[0009] The cantilever board is fixedly installed on the front of the upright board;

[0010] A floating platform, which is movable and set on top of the cantilever platform;

[0011] The drilling motor is fixedly installed on the top of the floating plate at the end away from the linear motor.

[0012] The sleeve is fixedly installed at the bottom of the output shaft of the drilling motor;

[0013] The drill bit is fixedly mounted at the bottom of the sleeve.

[0014] As a preferred embodiment of the present invention, the drilling unit further includes:

[0015] Two guide rods are fixedly installed on the top of the cantilever plate. The two cantilever plates are arranged parallel to each other. Both guide rods are slidably connected to the floating plate through linear bearings. The top of the guide rod is threaded with a nut.

[0016] Spring 1 is sleeved around the guide rod and fixedly installed between the top of spring 1 and the bottom of the nut on the outer periphery of the guide rod.

[0017] As a preferred embodiment of the present invention, the drilling unit further includes:

[0018] The connecting shaft is fixedly installed at the bottom of the output shaft of the drilling motor via a coupling.

[0019] The settling groove is located at the top of the sleeve;

[0020] A flange is fixedly installed inside the settling tank, and its top is fixedly connected to the bottom of the connecting shaft. The settling tank and the connecting shaft are concentric.

[0021] A sliding hole one is formed at the bottom of the sleeve and is concentric with the sleeve; the top of the sliding hole one is connected to the inside of the sink.

[0022] Two sliders are slidably installed inside the sliding hole, and both sliders have a semi-circular cross-section.

[0023] A strip groove is formed on the outer wall of the sleeve and extends into the interior of the sliding hole. There are two strip grooves, and the two strip grooves are symmetrically distributed about the center of the sleeve.

[0024] The slide rods are fixedly installed on the upper part of the outer wall of the two sliders, and the outer walls of the two slide rods are slidably connected to the inner walls of the two strip grooves.

[0025] As a preferred embodiment of the present invention, the drilling unit further includes:

[0026] Guide wheels are rotatably mounted on the outer walls of the two slide rods;

[0027] The mounting plate is fixedly installed at the bottom of the cantilever plate at the end away from the linear motor, and the mounting plate is located on the periphery of the sleeve.

[0028] The sleeve is fixedly installed on the bottom of the mounting plate;

[0029] The end face path groove is formed at the bottom of the tube sleeve, and there are a total of five grooves in the end face path groove. The end face path groove is located on the top of the two guide wheels.

[0030] As a preferred embodiment of the present invention, the drilling unit further includes:

[0031] The second sliding hole is located at the top of the slider;

[0032] Spring 2 is inserted into the sliding hole 2, and the bottom of spring 2 is fixedly connected to the bottom wall of sliding hole 2.

[0033] Two push rods are fixedly installed at the bottom of the flange. The positions of the push rods correspond one-to-one with the positions of the sliding holes. The outer wall of the push rod is slidably connected to the inner wall of the sliding holes. The bottom of the push rod is fixedly connected to the top of the spring.

[0034] As a preferred embodiment of the present invention, the drilling unit further includes:

[0035] Two keyways are formed on the inner wall of the sliding hole. The two keyways are symmetrically distributed about the center of the sliding hole, and the positions of the keyways correspond to the positions of the strip grooves.

[0036] The key block is fixedly installed on the outer wall of the slider and slidably connected to the keyway.

[0037] As a preferred embodiment of the present invention, the drilling unit further includes:

[0038] A right-angled block is fixedly installed on the side of the linear motor;

[0039] The positioning adjustment bolt is screwed onto the bottom horizontal end of the right-angle block;

[0040] The positioning block is formed together with the floating plate and is located on the top of the positioning adjustment bolt.

[0041] As a preferred embodiment of the present invention, a positioning groove is provided at the bottom of the slider, and the drill bit is fixedly installed inside the positioning groove by bolts. There are two drill bits, and the cross-sections of the two drill bits are semi-circular and are compatible with each other.

[0042] As a preferred embodiment of the present invention, a drilling frame is fixedly installed on the top of the drilling machine. The position of the drilling frame corresponds to the position of the drilling unit, and there are multiple drilling frames, which are distributed at equal distances to the left and right.

[0043] In a preferred embodiment of the present invention, the slider and the sliding hole are slidably connected by ball bearings.

[0044] Compared with the prior art, the beneficial effects of the present invention are:

[0045] 1. In this invention, a PCB circuit board is clamped and placed on the top of the corresponding drilling frame by a robot on the assembly line of the PCB circuit board processing workshop. After the position of the PCB circuit board is adjusted, a linear motor drives the lifting plate, floating plate, drilling motor, sleeve, and drill bit to move together. At the same time, the output shaft of the drilling motor drives the connecting shaft to rotate, and further drives the two drill bits to rotate through the connection of the sleeve and two sliders to drill holes in the PCB circuit board. Multiple drill bits can be set to improve the PCB drilling efficiency.

[0046] 2. In this invention, the output shaft of the drilling motor drives the connecting shaft to rotate, which in turn drives the two sliding rods and two guide wheels to rotate together via the sleeve. During this process, the floating plate also drives the positioning block, which is integrally formed with it, to move downward together. When the drill bit penetrates the PCB circuit board, the bottom of the positioning block just touches the top of the positioning adjustment bolt. After that, the lifting plate continues to move downward, but the floating plate is affected by the contact between the bottom of the positioning block and the top of the positioning adjustment bolt, so the floating plate cannot continue to move downward. That is to say, at this time, the lifting plate drives the two guide rods to move downward, and the two springs are compressed and stored. As the lifting plate continues to move downward, it also drives the sleeve and the end face path groove to move downward a certain distance via the mounting plate. This causes the two guide wheels to roll along the path at the bottom of the end face path groove as the sleeve rotates and in conjunction with the elastic force of the end face path groove. This causes the two guide wheels to roll along the path at the bottom of the end face path groove, which in turn drives the two sliders to move up and down along the inside of the sliding hole via the two sliding rods. The two sliders simultaneously drive the two drill bits to move up and down, trimming the inner wall of the drilled PCB circuit board hole and reducing burrs.

[0047] 3. In this invention, the arc-shaped groove portion of the end face path groove is provided with five, which means that the two guide wheels will not be pushed downward by the end face path groove at the same time. Therefore, during the rotation of the sleeve, one of the two guide wheels moves downward while the other moves upward under the elastic force of the end face path groove, ensuring that the two drill bits are in an up-down motion. In other words, during the process of the two drill bits trimming the hole wall, the two drill bits moving in opposite directions can cancel out the upward and downward squeezing forces on the PCB circuit board, so as to prevent the PCB circuit board from being damaged by force. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the structure of the present invention;

[0049] Figure 2 This is a schematic diagram of the drilling unit in the present invention. Figure 1 ;

[0050] Figure 3 This is a schematic diagram of the drilling unit in the present invention. Figure 2 ;

[0051] Figure 4 This is a partial structural diagram of the drilling unit in this invention;

[0052] Figure 5 This is a schematic diagram of the end face path groove in the present invention;

[0053] Figure 6 This is a schematic diagram of a partially unfolded structure of the drilling unit in this invention;

[0054] Figure 7 In this invention Figure 6 A partially enlarged structural diagram;

[0055] Figure 8 This is a side cross-sectional view of the slider in this invention;

[0056] Figure 9 This is a schematic diagram of the positioning groove in the present invention;

[0057] Figure 10 In this invention Figure 3 A partially enlarged structural diagram.

[0058] In the diagram: 100, Drilling machine; 200, Drilling unit; 201, Linear motor; 202, Vertical plate; 203, Cantilever plate; 204, Floating plate; 205, Drilling motor; 206, Sleeve; 207, Drill bit; 208, Guide rod; 209, Spring 1; 2010, Connecting shaft; 2011, Countersunk groove; 2012, Flange; 2013, Sliding hole 1; 2014, Slider; 2015. 2016. Strip groove; 2017. Slide rod; 2018. Guide wheel; 2019. Mounting plate; 2020. Pipe sleeve; 2021. End face path groove; 2022. Sliding hole two; 2023. Spring two; 2024. Top rod; 2025. Keyway; 2026. Key block; 2027. Positioning groove; 2028. Right angle block; 2029. Positioning block; 300. Drilling frame. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] Please see Figures 1-10 The technical solution provided by the present invention specifically includes the following embodiments:

[0061] A PCB multi-axis drilling machine includes a drilling machine 100 and drilling units 200. The drilling units 200 are fixedly installed on the side of the drilling machine 100 and are used for drilling and trimming PCB circuit boards. There are multiple drilling units 200, which are distributed at approximately equal distances. A drilling frame 300 is fixedly installed on the top of the drilling machine 100. The position of the drilling frame 300 corresponds to the position of the drilling unit 200, and there are multiple drilling frames 300, which are distributed at approximately equal distances.

[0062] For further details, please refer to [link / reference]. Figure 2 , Figure 3 As shown:

[0063] The drilling unit 200 includes a linear motor 201, a vertical plate 202, a cantilever plate 203, a floating plate 204, a drilling motor 205, a sleeve 206, and a drill bit 207. The linear motor 201 is fixedly installed on the side of the drilling machine 100, the vertical plate 202 is fixedly installed on the output end of the linear motor 201, the cantilever plate 203 is fixedly installed on the front of the vertical plate 202, the floating plate 204 is movably disposed on the top of the cantilever plate 203, the drilling motor 205 is fixedly installed on the top of the floating plate 204 away from the linear motor 201, the sleeve 206 is fixedly disposed at the bottom of the output shaft of the drilling motor 205, and the drill bit 207 is fixedly disposed at the bottom of the sleeve 206.

[0064] Specifically, the PCB circuit board is picked up and placed on the top of the corresponding drilling frame 300 by the assembly line robot in the PCB circuit board processing workshop. After the position of the PCB circuit board is adjusted, the linear motor 201 drives the lifting plate 203, floating plate 204, drilling motor 205, sleeve 206 and drill bit 207 to move together. At the same time, the output shaft of the drilling motor 205 drives the connecting shaft 2010 to rotate, and further drives the two drill bits 207 to rotate through the connection of the sleeve 206 and the two sliders 2014 to drill holes in the PCB circuit board.

[0065] For further details, please refer to [link / reference]. Figures 3-8 , Figure 10 As shown:

[0066] The drilling unit 200 also includes guide rods 208, spring 209, connecting shaft 2010, countersunk groove 2011, flange 2012, sliding hole 2013, slider 2014, strip groove 2015, sliding rod 2016, guide wheel 2017, mounting plate 2018, pipe sleeve 2019, end face path groove 2020, sliding hole 2021, spring 2022, top rod 2023, right angle block 2027, positioning adjustment bolt 2028, and positioning block 2029. Two guide rods 208 are fixedly installed on the top of the cantilever plate 203, with the two cantilever plates 203 arranged parallel to each other. Both guide rods 208 are slidably connected to the floating plate 204 via linear bearings. Nuts are threaded onto the top of the guide rods 208. Spring 209 is sleeved around guide rod 208 and fixedly installed between the top of spring 209 and the bottom of nut around guide rod 208. Connecting shaft 2010 is fixedly installed at the bottom of output shaft of drilling motor 205 via coupling. Slot 2011 is formed at the top of sleeve 206. Flange 2012 is fixedly installed inside slot 2011, and its top is fixedly connected to the bottom of connecting shaft 2010. Slot 2011 and connecting shaft 2010 are concentric. Sliding hole 2013 is formed at the bottom of sleeve 206 and is concentric with sleeve 206. The top of sliding hole 2013 communicates with the inside of slot 2011. Two sliders 2014 are slidably installed inside sliding hole 2013. Both sliders 2014 have semi-circular cross-sections. The slider 2014 and the sliding hole 2013 are slidably connected by ball bearings. Two strip grooves 2015 are formed on the outer wall of the sleeve 206 and extend into the sliding hole 2013. These two strip grooves 2015 are symmetrically distributed about the center of the sleeve 206. Sliding rods 2016 are fixedly installed on the upper part of the outer wall of each of the two sliders 2014, and their outer walls are slidably connected to the inner walls of the two strip grooves 2015. Guide wheels 2017 are rotatably installed on the outer walls of the two sliding rods 2016. A mounting plate 2018 is fixedly installed at the bottom of the lifting plate 203, away from the linear motor 201. The mounting plate 2018 is located around the sleeve 206. A sleeve 2019 is fixedly installed at the bottom of the mounting plate 2018. The end face path groove 2020 is formed at the bottom of the sleeve 2019, and there are five grooves in the end face path groove 2020. The end face path groove 2020 is located on the top of the two guide wheels 2017. The second sliding hole 2021 is formed on the top of the slider 2014. The second spring 2022 is inserted into the inside of the second sliding hole 2021. The bottom of the second spring 2022 is fixedly connected to the bottom wall of the second sliding hole 2021. The top rod 2023 is fixedly installed on the bottom of the flange 2012, and there are two of them. The position of the top rod 2023 corresponds one-to-one with the position of the second sliding hole 2021. The outer wall of the top rod 2023 is slidably connected to the inner wall of the second sliding hole 2021. The bottom of the top rod 2023 is fixedly connected to the top of the second spring 2022. The right angle block 2027 is fixedly installed on the side of the linear motor 201.The positioning adjustment bolt 2028 is screwed onto the bottom horizontal end of the right-angle block 2027. The positioning block 2029 is formed together and set on the side of the floating plate 204, located on top of the positioning adjustment bolt 2028.

[0067] Specifically, the output shaft of the drilling motor 205 drives the connecting shaft 2010 to rotate, and further drives the two drill bits 207 to rotate through the connection of the sleeve 206 and the two sliders 2014 to drill holes in the PCB circuit board. At the same time, the sleeve 206 also drives the two slide rods 2016 and the two guide wheels 2017 to rotate together. During this period, the floating plate 204 also drives the positioning block 2029, which is integrally formed with it, to move downward together. When the drill bit 207 penetrates the PCB circuit board, the bottom of the positioning block 2029 is just in contact with the positioning block. When the top of the adjusting bolt 2028 contacts the ground, the cantilever plate 203 continues to move downwards. Meanwhile, the floating plate 204 is prevented from moving further downwards by the contact between the bottom of the positioning block 2029 and the top of the positioning adjusting bolt 2028. In other words, at this point, the cantilever plate 203 drives the two guide rods 208 downwards, and the two springs 209 are compressed and stored. Furthermore, the continued downward movement of the cantilever plate 203 will also cause the pipe sleeve 2019 and the end face path groove 2020 to move downwards a certain distance via the mounting plate 2018. As the sleeve 206 rotates, the two guide wheels 2017, in conjunction with the elastic force of the upper end face path groove 2020, cause the guide wheels 2017 to roll along the path at the bottom of the end face path groove 2020. This, in turn, drives the two sliders 2014 to move up and down along the inside of the sliding hole 2013 via the two slide rods 2016. Simultaneously, the two sliders 2014 drive the two drill bits 207 to move up and down, trimming the inner wall of the drilled PCB circuit board hole, reducing burrs. Furthermore, because the arc-shaped groove portion of the end face path groove 2020 has five... In other words, the two guide wheels 2017 will not be pushed downward by the end face path groove 2020 at the same time. Therefore, during the rotation of the sleeve 206, one of the two guide wheels 2017 moves downward while the other moves upward under the elastic force of the end face path groove 2020, ensuring that the two drill bits 207 are in an up-and-down motion. That is to say, during the process of the two drill bits 207 trimming the hole wall, the two drill bits 207 moving in opposite directions can cancel out the upward and downward squeezing forces on the PCB circuit board, so as to prevent the PCB circuit board from being damaged by force.

[0068] For further details, please refer to [link / reference]. Figure 7 As shown:

[0069] The drilling unit 200 also includes a keyway 2024 and a key block 2025. The keyway 2024 is formed on the inner wall of the sliding hole 2013, and there are two keyways 2024. The two keyways 2024 are symmetrically distributed about the center of the sliding hole 2013, and the position of the keyway 2024 corresponds to the position of the strip groove 2015. The key block 2025 is fixedly installed on the outer wall of the slider 2014 and is slidably connected to the keyway 2024.

[0070] Specifically, by setting the keyway 2024 and the key block 2025 to slide together, the slider 2014 can be provided with a torque limiting effect, thereby ensuring that the outer wall of the slider 2016 is not subjected to the lateral force of the inner wall of the strip groove 2015, so as to prevent the slider 2016 from bending and deforming.

[0071] For further details, please refer to [link / reference]. Figure 9 As shown:

[0072] The bottom of the slider 2014 has a positioning groove 2026. The drill bit 207 is fixedly installed inside the positioning groove 2026 by bolts. There are two drill bits 207, and the cross-section of the two drill bits 207 is semi-circular and they are compatible with each other.

[0073] Specifically, a positioning groove 2026 is provided to position the drill bit 207, thereby facilitating the fixed connection between the drill bit 207 and the slider 2014. At the same time, the assembly is carried out with bolts, making it easy to repair, grind and replace the drill bit 207 after it becomes dull.

[0074] In this solution, a PCB multi-axis drilling machine operates by having a PCB circuit board processing workshop assembly line robot clamp the PCB circuit board and place it on the top of the corresponding drilling frame 300. After adjusting the position of the PCB circuit board, the linear motor 201 drives the lifting plate 203, floating plate 204, drilling motor 205, sleeve 206, and drill bit 207 to move together. At the same time, the output shaft of the drilling motor 205 drives the connecting shaft 2010 to rotate, and further drives the two drill bits 207 to rotate through the connection of the sleeve 206 and the two sliders 2014 to drill holes in the PCB circuit board. At the same time, the sleeve 206 also drives the two sliding rods 2016 and the two guide wheels 2017 to rotate together.

[0075] During this process, the floating plate 204 also moves the integrally formed positioning block 2029 downwards. When the drill bit 207 penetrates the PCB circuit board, the bottom of the positioning block 2029 just touches the top of the positioning adjustment bolt 2028. After that, the lifting plate 203 continues to move downwards, while the floating plate 204 is unable to move further downwards due to the contact between the bottom of the positioning block 2029 and the top of the positioning adjustment bolt 2028. In other words, at this time, the lifting plate 203 moves the two guide rods 208 downwards, and the two springs 209 are compressed and stored. As the lifting plate 203 continues to move downwards, it will also move the sleeve 2019 and the end face path groove 2020 downwards a certain distance through the mounting plate 2018. This causes the two guide wheels 2017 to move along the end face path groove as the sleeve 206 rotates and, in conjunction with the elastic force of the end face path groove 2020, the guide wheels 2017 move along the end face path groove. The bottom path of 2020 rolls, which in turn drives two sliders 2014 to move up and down along the inside of the sliding hole 2013 via two slide rods 2016. The two sliders 2014 simultaneously drive the two drill bits 207 to move up and down, trimming the inner wall of the drilled PCB circuit board hole and reducing burrs. Furthermore, since the arc-shaped groove of the end face path groove 2020 has five openings, the two guide wheels 2017 will not be pushed down by the end face path groove 2020 at the same time. Therefore, during the rotation of the sleeve 206, one of the two guide wheels 2017 moves downward while the other moves upward under the elastic force of the end face path groove 2020, ensuring that the two drill bits 207 are in an up-and-down motion. In other words, during the process of trimming the hole wall, the two drill bits 207 moving in opposite directions can cancel out the upward and downward squeezing forces on the PCB circuit board, so as to prevent the PCB circuit board from being damaged by force.

[0076] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A PCB multi-axis drilling machine, characterized in that: The system includes a drilling machine (100), and drilling units (200) are fixedly installed on the side of the drilling machine (100) for drilling and trimming PCB circuit boards. There are multiple drilling units (200) in total, and the multiple drilling units (200) are distributed at equal distances on the left and right. Each drilling unit (200) includes: a linear motor (201) fixedly installed on the side of the drilling machine (100); a vertical plate (202) fixedly installed on the output end of the linear motor (201); a cantilever plate (203) fixedly installed on the front of the vertical plate (202); a floating plate (204) movably installed on the top of the cantilever plate (203); a drilling motor (205) fixedly installed on the top of the floating plate (204) away from the linear motor (201); a sleeve (206) fixedly installed at the bottom of the output shaft of the drilling motor (205); and a drill bit (207) fixedly installed at the bottom of the sleeve (206). Two guide rods (208) are fixedly installed on the top of the cantilever plate (203). The two cantilever plates (203) are arranged parallel to each other. Both guide rods (208) are slidably connected to the floating plate (204) through linear bearings. The top of the guide rod (208) is threaded with a nut. A spring (209) is sleeved on the outside of the guide rod (208) and fixedly installed between the top of the spring (209) and the bottom of the nut on the outside of the guide rod (208). A connecting shaft (2010) is fixedly installed at the bottom of the output shaft of a drilling motor (205) via a coupling; a countersink (2011) is formed at the top of a sleeve (206); a flange (2012) is fixedly installed inside the countersink (2011), and its top is fixedly connected to the bottom of the connecting shaft (2010), the countersink (2011) being concentric with the connecting shaft (2010); a sliding hole (2013) is formed at the bottom of the sleeve (206), and is concentric with the sleeve (206), the top of the sliding hole (2013) communicating with the interior of the countersink (2011); and a slider (2014). Two sliders (2014) are slidably installed inside the sliding hole (2013), and the cross-section of the two sliders (2014) is semi-circular; two strip grooves (2015) are formed on the outer wall of the sleeve (206) and extend into the sliding hole (2013), and the two strip grooves (2015) are symmetrically distributed about the center of the sleeve (206); two slide rods (2016) are fixedly installed on the upper part of the outer wall of the two sliders (2014), and the outer walls of the two slide rods (2016) are slidably connected to the inner walls of the two strip grooves (2015); Guide wheels (2017) are rotatably mounted on the outer walls of two sliding rods (2016); mounting plate (2018) is fixedly set at the bottom of the cantilever plate (203) away from the linear motor (201), and the mounting plate (2018) is located around the sleeve (206); tube sleeve (2019) is fixedly mounted on the bottom of mounting plate (2018); end face path groove (2020) is opened at the bottom of tube sleeve (2019), and the end face path groove (2020) has a total of five grooves, and the end face path groove (2020) is located on the top of the two guide wheels (2017); A second sliding hole (2021) is formed on the top of the slider (2014); a second spring (2022) is inserted into the inside of the second sliding hole (2021), and the bottom of the second spring (2022) is fixedly connected to the bottom wall of the second sliding hole (2021); two top rods (2023) are fixedly installed on the bottom of the flange (2012), and the positions of the top rods (2023) correspond one-to-one with the positions of the second sliding hole (2021), and the outer wall of the top rod (2023) is slidably connected to the inner wall of the second sliding hole (2021), and the bottom of the top rod (2023) is fixedly connected to the top of the second spring (2022).

2. The PCB multi-axis drilling machine according to claim 1, characterized in that: The drilling unit (200) also includes: Two keyways (2024) are formed on the inner wall of the sliding hole (2013). The two keyways (2024) are symmetrically distributed about the center of the sliding hole (2013), and the positions of the keyways (2024) correspond to the positions of the strip groove (2015). The key block (2025) is fixedly installed on the outer wall of the slider (2014) and is slidably connected to the keyway (2024).

3. A PCB multi-axis drilling machine according to claim 2, characterized in that: The drilling unit (200) also includes: A right-angle block (2027) is fixedly installed on the side of the linear motor (201); Position adjustment bolt (2028), bolt screwed onto the bottom horizontal end of right-angle block (2027); The positioning block (2029) is integrally formed on the side of the floating plate (204) and located on top of the positioning adjusting bolt (2028).

4. A PCB multi-axis drilling machine according to claim 3, characterized in that: The slider (2014) has a positioning groove (2026) at its bottom. The drill bit (207) is fixedly installed inside the positioning groove (2026) by bolts. There are two drill bits (207), and the cross-sections of the two drill bits (207) are semi-circular and are compatible with each other.

5. A PCB multi-axis drilling machine according to claim 4, characterized in that: A drilling frame (300) is fixedly installed on the top of the drilling machine (100). The position of the drilling frame (300) corresponds to the position of the drilling unit (200), and there are multiple drilling frames (300) distributed at equal distances on the left and right.

6. A PCB multi-axis drilling machine according to claim 5, characterized in that: The slider (2014) and the sliding hole (2013) are connected by ball bearings.

Images