A drilling device and drilling process for PCB processing

Abstract

The present invention discloses a drilling device and a drilling process for PCB processing, which relates to the technical field of PCB drilling processing, and includes the following steps: cleaning and adjusting the tabletop to ensure that the surface of the drilling platform is flat and free of granular garbage; fixing the PCB board to be processed on the drilling platform with a special pin, and covering the PCB board with an aluminum sheet of uniform thickness and fixing the edge thereof, wherein the thickness of the aluminum sheet is 0.13 mm; and transferring the program and parameters to be drilled into the drilling machine. The present invention places an aluminum sheet of known thickness on the PCB board, and can irradiate the aluminum sheet by setting an optical sensor at the drilling machine position, so as to reflect infrared rays by utilizing the good reflective performance of the metal surface, and judge the position of the drilling machine and the metal top by the reflected signal, and at the same time, a conductive induction device is set in coordination with it, so that conduction is completed at the moment when the drill bit contacts the metal aluminum sheet.

Description

Technical Field

[0001] The invention relates to the technical field of PCB drilling processing, and in particular to a drilling device and a drilling process thereof for PCB processing. Background Art

[0002] The drilling process in PCB processing is to drill holes on the PCB board with a drill press so that other processes such as welding and assembly can be carried out. Drilling requires very high precision and stability to ensure the quality and reliability of the PCB board. In PCB processing, common drilling includes through holes and blind holes. Different drilling types and drilling processes will be selected according to different design requirements and technical requirements.

[0003] In the prior art, mechanical depth-controlled drilling uses aluminum sheets as cover plates, and is provided with conductive sensing devices. When the drill bit contacts the aluminum sheet, an electrical signal is obtained, thereby realizing the calculation of the drilling depth from the contact surface of the cutting point. However, when installing the PCB board and the cover plate on the drilling equipment in the prior art, the cover plate is mostly placed on the PCB board manually, resulting in a long drilling process time for the entire PCB board and low efficiency. In addition, due to the instability of manual operation, the position of the cover plate is difficult to accurately control.

[0004] A Chinese patent document with publication number CN116834107B discloses an automatic loading and unloading device for a PCB mechanical drilling machine to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: "It can completely replace the upper and lower PINs and loading and unloading of the mechanical drilling machine, change the material number and other manual operations, save a lot of manpower and materials in the PCB drilling workshop, and improve production efficiency and processing accuracy. The sponge suction cups of the loading and unloading module are used to absorb the materials, which are wooden boards, PCB substrates, and aluminum sheets. The materials have PIN holes drilled in advance." However, since the aluminum sheet is relatively thin, when the sponge suction cup is used directly to absorb and transfer the material, the horizontal movement of the sponge suction cup may cause the corners and sides of the aluminum sheet to bend downward due to the action of air resistance, resulting in poor fit between the aluminum sheet and the PCB board. When placed, a large gap may appear between the aluminum sheet and the PCB board, resulting in a large error when drilling; in addition, the downward-bent aluminum sheet is prone to folding corners when placed, resulting in the scrapping of the aluminum sheet. Summary of the invention

[0005] The purpose of the present invention is to provide a drilling device and a drilling process for PCB processing, so as to solve the problem that when a sponge suction cup is used to directly suck and transfer materials, the corners and sides of the aluminum sheet are bent downward due to the action of air resistance during the horizontal movement of the sponge suction cup.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A drilling process for PCB processing includes the following steps:

[0008] S1: Clean and adjust the table surface to ensure that the drilling platform surface is flat and free of granular garbage;

[0009] In order to make the PCB stable, and the bottom surface can fit with the top of the drilling platform, reduce the error of the drilling process, and avoid the particles on the support surface causing shaking during drilling;

[0010] S2: Use special pins to fix the PCB to be processed on the drilling platform, cover the PCB with an aluminum sheet with a thickness of 0.13mm, and fix its edges;

[0011] An aluminum sheet of known thickness is placed on the PCB board, and an optical sensor is set at the position of the drill rig to irradiate the aluminum sheet, so as to reflect infrared rays by utilizing the good reflective performance of the metal surface. The position of the drill rig and the metal top is determined by the reflected signal, and a conductive sensing device is set in coordination with it, so that conduction is completed at the moment the drill bit contacts the metal aluminum sheet, and the conductive sensing device generates an electrical signal. This position is the position of the metal top surface, so that precise positioning is completed, and the required depth hole position can be drilled as required in the case of different PCB board thicknesses or different drill bit sizes;

[0012] S3: transferring the drilling program and parameters into the drilling machine, the parameters including the drilling position and drilling depth;

[0013] Among them, the PCB board has been positioned on the drilling platform, and its placement position is unified. By setting the drilling position coordinates, holes with uniform hole positions can be drilled for different PCB boards; and the drilling depth is reflected by the drilling distance after the drill bit contacts the aluminum sheet;

[0014] S4: lower the drill bit until the drill bit just touches the aluminum sheet, and record the spatial position parameters of the drill bit end at this time; repeat the above operation at least 3 times to obtain at least 3 spatial position parameters, and calculate whether the PCB and the aluminum sheet are placed horizontally based on the obtained data. If not, adjust the drilling platform to make them horizontal;

[0015] The end of the drill bit is used to contact the surface of the aluminum sheet. When in contact, a signal is generated through the conductive sensing device, and the height parameters of at least three non-collinear points are recorded. The height positions at several points are then compared and analyzed, and the height differences between them are calculated. If the height differences between each point are less than the preset threshold, the aluminum sheet is judged to be relatively horizontal. When non-levelness is detected, the drilling platform is adjusted, and the above detection operation is repeated to make it level.

[0016] S5: Then lower the drill bit to drill. When the drill bit just contacts the aluminum sheet, a signal is generated by the conductive sensing device of the drilling platform. The plane height of the aluminum sheet is measured by the amplifier and the optical ruler. The height information of the end of the drill bit at this time is recorded and recorded as the drilling depth origin. Drilling continues according to the drilling depth parameter.

[0017] At the moment the drill bit touches the aluminum sheet, the conductive sensing device is turned on and generates a signal, which is processed and the position where the signal is generated is recorded as the height position of the metal top surface.

[0018] S6: From the origin of the drilling depth to the drilling depth, the sensor irradiates the aluminum sheet with a light source to determine the distance between the drill bit and the aluminum sheet, and sets the reflection depth parameter according to the drilling depth;

[0019] During the drilling process, the optical sensor light source is used to face the aluminum sheet, and the distance parameter can be fed back through the reflected signal. When the drill bit contacts the aluminum sheet, the depth parameter difference of the drilling is the drilling depth, and the depth minus the thickness of the aluminum sheet and the gap is the drilling depth on the PCB board.

[0020] S7: Clean the drill hole to ensure that no residue enters the drill hole, measure whether the drill depth meets the standard, and compare the preset depth parameters with the actual drill depth to adjust the parameters.

[0021] By comparing the set parameters with the actual drilling depth, compensation adjustments are made to the equipment error and the error caused by the gap between the PCB board and the aluminum sheet, thereby improving the accuracy of matching the set parameters with the actual operation.

[0022] A further improvement of the technical solution of the present invention is that in step S2, a program for drilling pin holes is input into a drilling machine based on the existing hole positions on the PCB board, holes for fixing the position of the PCB board are drilled on the drilling platform, and pins are planted to fix the PCB board on the drilling platform;

[0023] By using the existing hole positions of the PCB board as a reference, holes are drilled on the drilling platform so that the position parameters on the PCB board can be quickly determined. At the same time, holes for positioning can be drilled through the existing hole positions on the PCB board so that subsequent placement and positioning of the PCB board can be in the same position; wherein, the drilling platform is configured as a detachable structure for easy replacement.

[0024] A drilling device for PCB processing, comprising a main body, a three-axis component is arranged on the top of the main body, and a drilling machine is arranged on the movable end of the three-axis component; comprising: a loading rack, the loading rack is fixedly connected to one side of the main body, and an adjustable lifting loading platform is arranged inside the loading rack;

[0025] The flip shaft is hinged parallel to the top of the main body, and the two flip shafts are connected through a belt and a pulley transmission. A motor is fixedly installed on the top of the main body, and the output end of the motor is fixedly connected to one end of one of the flip shafts. Two connecting rods are symmetrically fixedly connected to the outer sides of the flip shafts.

[0026] The top end of the material moving plate and the connecting rod are hinged to the bottom of the material moving plate, and the bottom of the material moving plate is provided with four material taking components for adsorbing aluminum sheets.

[0027] By adopting the above technical solution, the motor is controlled to rotate the flip shaft, and the connecting rod is driven to flip, so that the material moving plate is flipped to the top of the loading platform, and the flip shaft continues to flip, so that the material picking component adsorbs the aluminum sheet. A photoelectric sensor is installed inside the limit slot. When the light source is blocked by the slider, it means that the upward movement distance of the slider exceeds a certain value, indicating that the transmission is sufficient to suck up the aluminum sheet; when the aluminum sheet is sucked up, the motor is controlled to rotate the flip shaft, so that the material moving plate can be flipped to the top of the drilling platform, and the aluminum sheet is released, so that the aluminum sheet is laid flat on the hole to be drilled. PCB board; then flip the material transfer plate to the upper side of the loading platform, but do not take the material to provide space for the drill to drill; then control the X-axis servo module and the Z-axis servo module to work, and cooperate with the Y-axis servo module to make the drill move to the position where drilling is required to drill. During the adjustment and control process of the Z-axis servo module, its active end will move to drive the drill and the optical sensor to move synchronously. The optical sensor shines vertically downward on the aluminum sheet. By using the reflection effect of the metal, the sensor can quickly and accurately receive the feedback signal, and then obtain the distance from the drill to the metal surface.

[0028] A further improvement of the technical solution of the present invention lies in that the material picking component comprises a groove opened at the bottom of the material moving plate, the inner wall of the groove is slidably connected with a slide, one side of the slide is fixedly connected with two limit strips slidably connected with the material moving plate, and a suction cup is arranged under the slide; the bottom of the material moving plate is slidably connected with two pressure rods, a pressure frame is fixedly connected between the bottom ends of the two pressure rods, and a pressure roller is rotatably connected to the inner side of the pressure frame; the top ends of the pressure rods extend to the top of the material moving plate and are fixedly connected with a strip board, a connecting plate is fixedly connected between the two strip boards, the ends of the strip boards away from each other are fixedly connected with wedge blocks three, and the side of the slide away from the limit strip is fixedly connected with a wedge block one used in conjunction with the wedge block three; the outer side of the pressure rod is covered with a spring three.

[0029] By adopting the above technical scheme, when taking materials, as the material transfer plate is pressed down, the pressure roller will first contact the aluminum sheet, so that the pressure roller and the pressure frame push the pressure rod upward, thereby driving the strip plate and the connecting plate to move upward relative to the material transfer plate, squeezing spring three, and causing wedge block three to squeeze wedge block one, so that the slide moves to the side away from wedge block one, and at this time the suction cup has not yet contacted the aluminum sheet; the cross-section of wedge block three is a right-angled trapezoid, and when wedge block one touches its top surface, the suction cup just contacts the aluminum sheet, and continued downward pressure will cause the hollow column to push the slider to slide upward. In this process, as the slider slides upward, the slider and the rotating head will completely slide into the deep limit groove, thereby preventing the rotating head from flipping; at this time, the suction cups are at the relatively farthest distance, and at the same time the pressure roller is pressed upward to a height flush with the bottom of the suction cup.

[0030] A further improvement of the technical solution of the present invention is that a flip groove is provided at the bottom of the slide, a limiting groove is provided at the top of the inner wall of the flip groove, slide grooves are provided on both sides of the inner wall of the limiting groove, a sliding block is slidably connected between the two sliding grooves, a rotating head is rotatably connected to the inner side of the sliding block, a hollow column is fixedly connected to the bottom of the rotating head, a suction cup is fixedly connected to the bottom of the hollow column, a spring 1 is fixedly connected between the top of the slider and the inner wall of the limiting groove; a cross plate is fixedly connected between every two slides, four mounting plates are fixedly connected to the bottom of the material moving plate, a sliding rod is slidably connected to the inner wall of the reserved through hole on the mounting plate, one end of the sliding rod is fixedly connected to the cross plate, and a limiting head is arranged at the other end, and a spring 5 is sleeved on the outer side of the sliding rod.

[0031] By adopting the above technical solution, along with the resetting of the pressure roller, the strip plate will move downward, and then the wedge block three will move downward, and the wedge block one will no longer be squeezed. Therefore, the slide can push the cross plate to move under the rebound action of the spring five, and then drive the slide to reset and move to the closer side, so that the aluminum sheet is actively bent. At the same time, along with the above bending process, the hollow column will be synchronously folded, and then cooperate with the deformation of the aluminum sheet. In this state, the aluminum sheet structure will be relatively more stable, and bending can be effectively avoided during the material transfer process.

[0032] A further improvement of the technical solution of the present invention is that a piston cylinder is fixedly connected to one side of the slide, a piston plate is slidably connected between the inner walls of the piston cylinder, a transmission rod is fixedly connected to the top of the piston plate, a linkage rod is slidably connected to the top of the slide, a linkage plate is fixedly connected between the top of the linkage rod and the top of the transmission rod, the bottom of the linkage rod extends to the inside of the limit groove and is fixedly connected to a pressure head, the pressure head is used in conjunction with the slide block, and the piston cylinder and the hollow column are connected by a pipe.

[0033] By adopting the above technical solution, when taking materials, when the slider moves upward to contact and push the linkage rod to move, the linkage plate and the transmission rod move upward, and drive the piston plate to move upward, so that negative pressure is generated in the piston cylinder and transmitted through the pipeline, so that the suction cup can adsorb the aluminum sheet.

[0034] A further improvement of the technical solution of the present invention is that the top of the material moving plate is fixedly connected to a fixed plate, one side of the fixed plate is slidably connected to a plurality of push rods, one end of the push rods is fixedly connected to a wedge block four, one end of the push rods away from the wedge block four extends to the other side of the fixed plate and is fixedly connected to a stop block, the top of the linkage plate is fixedly connected to a wedge block two, wedge block two is used in conjunction with wedge block four, and a spring two is sleeved on the outer side of the push rod.

[0035] By adopting the above technical solution, after taking the material, when it is necessary to put it down, the pressure roller is squeezed upwards, thereby pushing the slide to the side away from it. In the initial stage, the inclined surface of wedge block two will contact and squeeze wedge block four, causing wedge block two to move downward, and drive the piston plate to move downwards through the transmission rod (to achieve resetting), so that when the subsequent slider hits the pressure head, the piston plate can move upwards; the above process is continued until wedge block two passes over wedge block four, at which time wedge block four no longer squeezes wedge block two, so subsequent operations can enable wedge block two to move normally.

[0036] A further improvement of the technical solution of the present invention is that the movable end of one of the three-axis components is fixedly connected to a mounting frame, one side of the mounting frame is fixedly connected to a dust suction pipe, the dust suction pipe is connected to an external dust suction device through a pipeline, and the three-axis component is located at the movable end and is also symmetrically fixedly connected to two support plates, the bottoms of the two support plates are slidably connected to positioning rods, the bottoms of the positioning rods are fixedly connected to a lower pad, the ends of the positioning rods away from the lower pads extend to the top of the support plates and are fixedly connected to the upper pads, a spring four is sleeved on the outside of the positioning rod and located below the support plate, the positioning rod is set as a square rod, and the sides close to the lower pads are fixedly connected to a pressure block.

[0037] By adopting the above technical solution, by setting a pressing block, the pressing block can be contacted and squeezed the aluminum sheet before drilling, so that the aluminum sheet and the PCB board are squeezed and tightly fit, which can reduce the relative displacement and vibration of the two layers of boards during the drilling process, so that the drill bit can pass through the two layers of boards more stably, and when the two layers of boards are tightly fitted, the resistance encountered by the drill bit during the penetration process will be relatively more uniform, avoiding sudden force changes caused by different materials. In addition, pressing can also reduce the accumulation of drill chips between the two layers of boards, keep the drilling area clean, and thus help the drill bit to pass through the two layers of boards smoothly; during the drilling process, the debris generated is sucked out by the vacuum cleaner through the vacuum pipe, and the debris can be discharged in the first time, thereby avoiding the influence of the debris on the optical sensor monitoring.

[0038] A further improvement of the technical solution of the present invention is that the pressing block is set as a copper block, one end of the top of the pressing block is fixedly connected to a copper tube, and heat conducting fins are arranged between the copper tubes.

[0039] By adopting the above technical solution, a copper pressing block is set up so that when heat diffuses on the aluminum sheet, it can be transferred to the pressing block first, thereby reducing the amount of heat diffused outward through the aluminum sheet. After the heat is transferred to the pressing block, it diffuses to the copper tube and is discharged in a concentrated manner under the action of the wind force of the vacuum cleaner, thereby greatly reducing the impact of temperature on the optical sensor.

[0040] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0041] 1. The present invention provides a drilling device and a drilling process for PCB processing. An aluminum sheet with a known thickness is placed on the PCB board. An optical sensor is set at the position of the drill rig to irradiate the aluminum sheet, so that the good reflective performance of the metal surface is used to reflect infrared rays. The position of the drill rig and the metal top is judged by the reflected signal. At the same time, a conductive induction device is set in coordination with the device, so that conduction is completed at the moment the drill bit contacts the metal aluminum sheet, and the conductive induction device generates an electrical signal. The position is the position of the metal top surface, so that precise positioning is completed, and a hole position with a required depth can be drilled even when the PCB board thickness is different or the drill bit size is different.

[0042] 2. The present invention provides a drilling device and a drilling process for PCB processing. A suction cup capable of horizontal movement when picking up materials is provided. When lifting the material transfer plate, the device controls the device to lift up quickly, so that the pressure roller is reset, and the strip plate is moved downward, thereby causing the wedge block three to move downward and no longer squeeze the wedge block one. Therefore, the slide can push the cross plate to move under the rebound action of the spring five, thereby driving the slide to reset and move to the adjacent side, thereby actively bending the aluminum sheet. In this state, the aluminum sheet structure is relatively more stable, and bending can be effectively avoided during the material transfer process.

[0043] 3. The present invention provides a drilling device and a drilling process for PCB processing. The suction cup is set to a structure that can be flipped along with the hollow column, so that during the bending process of the aluminum sheet, when the slider moves downward until the rotating head moves into the flipping groove, there is no longer a limit groove to limit the rotating head. Along with the above-mentioned bending process, the hollow column will be flipped synchronously, and then cooperate with the deformation of the aluminum sheet, thereby avoiding falling off due to the incompatibility of the suction direction of the suction cup during bending.

[0044] 4. The present invention provides a drilling device and a drilling process for PCB processing. By setting a pressing block, the pressing block can be contacted with and squeezed the aluminum sheet before drilling, so that the aluminum sheet and the PCB board are squeezed and tightly fitted, which can reduce the relative displacement and vibration of the two layers of boards during the drilling process, so that the drill bit can pass through the two layers of boards more stably. When the two layers of boards are tightly fitted, the resistance encountered by the drill bit during the penetration process will be relatively more uniform, avoiding sudden force changes caused by different materials. In addition, pressing can also reduce the accumulation of drill chips between the two layers of boards, keep the drilling area clean, and thus help the drill bit to pass through the two layers of boards smoothly. During the drilling process, the generated debris is sucked out by the vacuum cleaner through the vacuum pipe, so the debris can be discharged immediately, thereby avoiding the influence of the debris on the monitoring of the optical sensor.

[0045] 5. The present invention provides a drilling device and a drilling process for PCB processing. By setting the pressing block to be copper, when the heat diffuses on the aluminum sheet, it can be preferentially transferred to the pressing block, thereby reducing the amount of heat diffused outward through the aluminum sheet. After the heat is transferred to the pressing block, it diffuses to the copper tube and is discharged centrally under the action of the wind of the vacuum cleaner, thereby avoiding the problem of oxidation of the aluminum sheet near the drilling position due to excessive temperature during the drilling process, thereby affecting the reflection effect of the light source, and greatly reducing the impact of high temperature generated during the drilling process on the optical sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] Figure 1 This is a structural schematic diagram of the aluminum sheet of the present invention in a picking state;

[0048] Figure 2 This is a schematic diagram of the structure of the present invention in a state where an aluminum sheet is placed;

[0049] Figure 3 It is a structural schematic diagram of the drilling state of the present invention;

[0050] Figure 4 It is a partial structural schematic diagram of the material carrier of the present invention;

[0051] Figure 5 This is a schematic diagram of the installation structure of the X-axis servo module of the present invention;

[0052] Figure 6 It is a schematic diagram of the installation structure of the material shifting plate of the present invention;

[0053] Figure 7 It is a structural schematic diagram of the material taking component of the present invention;

[0054] Figure 8 This is one of the cross-sectional structural schematic diagrams of the material taking component of the present invention;

[0055] Fig. 9 This is the second schematic cross-sectional structure diagram of the material taking component of the present invention;

[0056] Fig.10 For the present invention Figure 4 Enlarged view of point A in the middle;

[0057] Fig.11 For the present invention Figure 5 Enlarged view of point B in the middle;

[0058] Fig.12 For the present invention Figure 6 Enlarged view of point C in the middle;

[0059] Fig.13 It is a structural schematic diagram of the aluminum sheet transfer process of the present invention.

[0060] In the figure: 1, main body; 2, X-axis servo module; 3, Z-axis servo module; 4, Y-axis servo module; 5, drilling machine; 6, material carrier; 7, turning axis; 8, connecting rod; 9, material shifting plate; 10, motor; 11, pressing frame; 12, pressing roller; 13, suction cup; 14, groove; 15, slide; 16, turning groove; 17, limit groove; 18, slide; 19, slide block; 20, hollow column; 21, spring 1; 22, linkage rod; 23, linkage plate; 24, piston cylinder; 25, piston plate; 26, transmission rod; 27. Wedge one; 28. Wedge two; 29. ​​Rotating head; 30. Strip; 31. Connecting plate; 32. Wedge three; 35. Spring three; 36. Fixing plate; 37. Push rod; 38. Wedge four; 39. Spring two; 40. Loading platform; 41. Mounting frame; 42. Dust suction pipe; 43. Support plate; 44. Positioning rod; 45. Lower pad; 46. Upper pad; 47. Pressure block; 48. Spring four; 49. Horizontal plate; 50. Sliding rod; 51. Mounting plate; 52. Spring five; 53. Pressure rod; 54. Copper tube. DETAILED DESCRIPTION

[0061] The present invention is further described in detail below in conjunction with embodiments:

[0062] The present invention provides a drilling process for PCB processing, comprising the following steps:

[0063] S1: Clean and adjust the table surface to ensure that the drilling platform surface is flat and free of granular garbage;

[0064] In order to make the PCB stable, and the bottom surface can fit with the top of the drilling platform, reduce the error of the drilling process, and avoid the particles on the support surface causing shaking during drilling;

[0065] S2: Use special pins to fix the PCB to be processed on the drilling platform, and cover the PCB with an aluminum sheet of uniform thickness and fix its edges. The thickness of the aluminum sheet is 0.13mm.

[0066] An aluminum sheet of known thickness is placed on the PCB board. An optical sensor is set at the position of the drill rig to illuminate the aluminum sheet, so that the good reflective performance of the metal surface can be used to reflect infrared rays. The position of the drill rig and the metal top is determined by the reflected signal. At the same time, a conductive sensing device is set in coordination with it, so that conduction is completed at the moment the drill bit contacts the metal aluminum sheet, and the conductive sensing device generates an electrical signal. This position is the position of the metal top surface, so that precise positioning is completed, and the required depth hole position can be drilled as required in the case of different PCB board thicknesses or different drill bit sizes;

[0067] S3: calling the program and parameters of the hole to be drilled into the drilling machine, wherein the parameters include the position and depth of the hole to be drilled;

[0068] Among them, the PCB board has been positioned on the drilling platform, and its placement position is unified. By setting the drilling position coordinates, holes with uniform hole positions can be drilled for different PCB boards; and the drilling depth is reflected by the drilling distance after the drill bit contacts the aluminum sheet;

[0069] S4: lower the drill bit until it just touches the aluminum sheet, and record the spatial position parameters of the drill bit end at this time; repeat the above operation at least 3 times, and after obtaining at least 3 spatial position parameters, calculate whether the PCB and the aluminum sheet are placed horizontally based on the obtained data. If not, adjust the drilling platform to make them horizontal;

[0070] The end of the drill bit is used to contact the surface of the aluminum sheet. When in contact, a signal is generated through the conductive sensing device, and the height parameters of at least three non-collinear points are recorded. The height positions at several points are then compared and analyzed, and the height differences between them are calculated. If the height differences between each point are less than the preset threshold, the aluminum sheet is judged to be relatively horizontal. When non-levelness is detected, the drilling platform is adjusted, and the above detection operation is repeated to make it level.

[0071] S5: Then lower the drill bit to drill. When the drill bit just contacts the aluminum sheet, a signal is generated by the conductive sensing device of the drilling platform. The plane height of the aluminum sheet is measured by the amplifier and the optical ruler. The height information of the end of the drill bit at this time is recorded and recorded as the drilling depth origin. Drilling continues according to the drilling depth parameter.

[0072] At the moment when the drill bit touches the aluminum sheet, the conductive sensing device is turned on and generates a signal, which is processed and the position where the signal is generated is recorded as the height position of the metal top surface. Thereafter, the downward displacement of the drill bit is the drilling depth based on this position.

[0073] S6: From the drilling depth origin to the drilling depth, the aluminum sheet is illuminated by the sensor, the distance between the drill bit and the aluminum sheet is determined by the reflection depth of the metal surface, and the reflection depth parameter is set according to the drilling depth;

[0074] During the drilling process, the optical sensor light source is used to face the aluminum sheet, and the distance parameter can be fed back through the reflected signal. When the drill bit contacts the aluminum sheet, the depth parameter difference of the drilling is the drilling depth, and the depth minus the thickness of the aluminum sheet and the gap is the drilling depth on the PCB board.

[0075] S7: Clean the drill hole to ensure that no residue enters the drill hole, measure whether the drill depth meets the standard, and compare the preset depth parameters with the actual drill depth to adjust the parameters.

[0076] By comparing the set parameters with the actual drilling depth, compensation adjustments are made to the equipment error and the error caused by the gap between the PCB board and the aluminum sheet, thereby improving the accuracy of matching the set parameters with the actual operation.

[0077] Wherein, in step S2, a program for drilling pin holes is input into a drilling machine based on the existing hole positions on the PCB board, holes for fixing the position of the PCB board are drilled on the drilling platform, and pins are planted to fix the PCB board on the drilling platform;

[0078] By using the existing hole positions of the PCB board as a reference, holes are drilled on the drilling platform so that the position parameters on the PCB board can be quickly determined. At the same time, holes for positioning can be drilled through the existing hole positions on the PCB board so that subsequent placement and positioning of the PCB board can be in the same position; wherein, the drilling platform is configured as a detachable structure for easy replacement.

[0079] Example 1

[0080] like Figure 1-Figure 13 As shown, a drilling device for PCB processing includes a main body 1, a three-axis component is arranged on the top of the main body 1, and the three-axis component is used to control the drilling platform and the drilling machine 5 to coordinate operations in the three directions of X, Y and Z. The three-axis component includes a Y-axis servo module 4, an X-axis servo module 2 and a Z-axis servo module 3 installed on the top of the main body 1, and the active end of the Y-axis servo module 4 is connected to the drilling platform through screws, and the top of the main body 1 is fixedly connected to a support frame, the X-axis servo module 2 is fixedly installed on the top of the support frame, the Z-axis servo module 3 is fixedly installed on the active end of the X-axis servo module 2, and the drilling machine 5 is fixedly installed on the active end of the Z-axis servo module 3; and also includes:

[0081] The material carrier 6 is fixedly connected to one side of the main body 1, and an adjustable lifting material carrier platform 40 is arranged inside the material carrier 6, and the material carrier platform 40 is used to place aluminum sheets;

[0082] Flip shaft 7, two flip shafts 7 are arranged in parallel, the flip shaft 7 is hinged at the top of the main body 1, the two flip shafts 7 are connected by belt and pulley transmission, a motor 10 is fixedly installed on the top of the main body 1, the output end of the motor 10 is fixedly connected to one end of one of the flip shafts 7, and two connecting rods 8 are symmetrically fixedly connected to the outer sides of the flip shafts 7;

[0083] The top of the material moving plate 9 and the connecting rod 8 are both hinged to the bottom of the material moving plate 9, and a material taking component for adsorbing aluminum sheets is provided at the bottom of the material moving plate 9;

[0084] An optical sensor is fixedly installed at the bottom of the movable end of the Z-axis servo module 3, and the light source direction of the optical sensor is vertically downward.

[0085] In this embodiment, by controlling the motor 10 to work, the flip shaft 7 is rotated, and the connecting rod 8 is driven to flip, so that the material moving plate 9 is flipped to the top of the loading platform 40, and the flip shaft 7 continues to flip, so that the material picking component adsorbs the aluminum sheet. A photoelectric sensor is installed inside the limit groove 17. When the light source is blocked by the slider 19, it means that the upward movement distance of the slider 19 exceeds a certain value, indicating that the transmission is sufficient to suck up the aluminum sheet; when the aluminum sheet is sucked up, the motor 10 is controlled to work to rotate the flip shaft 7, so that the material moving plate 9 can be flipped to the top of the drilling platform, and the aluminum sheet can be released, so that the aluminum sheet is laid flat on the surface to be loaded. The PCB board to be drilled; then the material transfer plate 9 is flipped to the upper and oblique position of the material loading platform 40, but no material is taken, so as to provide space for the drill rig 5 to drill; then the X-axis servo module 2 and the Z-axis servo module 3 are controlled to work, and the Y-axis servo module 4 is coordinated to work, so that the drill rig 5 moves to the position where a hole needs to be drilled for drilling. During the adjustment and control process of the Z-axis servo module 3, its active end will move to drive the drill rig 5 and the optical sensor to move synchronously. The optical sensor shines vertically downward on the aluminum sheet. By utilizing the reflection effect of the metal, the sensor can quickly and accurately receive the feedback signal, and then obtain the distance from the drill rig 5 to the metal surface.

[0086] The bottom of the loading platform 40 is supported by a hydraulic device, and a sensor is arranged on the uppermost aluminum sheet in the loading rack 6, that is, the uppermost aluminum sheet is controlled to be flush with the light source height of the sensor.

[0087] like Figure 3 , Figure 4 and Figure 6As shown, preferably, the material picking component includes a groove 14 opened at the bottom of the material moving plate 9, the inner wall of the groove 14 is slidably connected with a slide 15, one side of the slide 15 is fixedly connected with two limit bars slidably connected to the material moving plate 9, and a suction cup 13 is arranged under the slide 15; the bottom of the material moving plate 9 is slidably connected with two pressure rods 53, the bottom ends of the two pressure rods 53 are fixedly connected with a pressure frame 11, and the inner side of the pressure frame 11 is rotatably connected with a pressure roller 12; the top ends of the pressure rods 53 extend to the top of the material moving plate 9 and are fixedly connected with a strip board 30, a connecting plate 31 is fixedly connected between the two strip boards 30, the ends of the strip boards 30 away from each other are fixedly connected with a wedge block three 32, and the side of the slide 15 away from the limit bar is fixedly connected with a wedge block one 27 used in conjunction with the wedge block three 32; the outer side of the pressure rod 53 is sleeved with a spring three 35.

[0088] When the material is taken out, along with the downward pressure of the material moving plate 9, the pressure roller 12 will first contact the aluminum sheet, so that the pressure roller 12 and the pressure frame 11 push the pressure rod 53 upward, thereby driving the strip plate 30 and the connecting plate 31 to move upward relative to the material moving plate 9, squeezing the spring three 35, and making the wedge block three 32 squeeze the wedge block one 27, so that the slide 15 moves to the side away from the wedge block one 27, at this time, the suction cup 13 has not yet contacted the aluminum sheet; and the cross-section of the wedge block three 32 is a right-angled trapezoid. When the wedge block one 27 touches its top surface, the suction cup 13 just contacts the aluminum sheet, and with continued downward pressure, the hollow column 20 will push the slider 19 to slide upward. In this process, as the slider 19 slides upward, the slider 19 and the rotating head 29 will completely slide into the deep of the limit groove 17, thereby preventing the rotating head 29 from turning over; at this time, the suction cups 13 are at the farthest distance between each other, and the pressure roller 12 is pressed upward to a height flush with the bottom of the suction cup 13.

[0089] Example 2

[0090] like Figure 8 , Fig. 9 and Fig.10 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a flip groove 16 is provided at the bottom of the slide 15, a limiting groove 17 is provided at the top of the inner wall of the flip groove 16, and slide grooves 18 are provided on both sides of the inner wall of the limiting groove 17, a slider 19 is slidably connected between the two slide grooves 18, a turntable 29 is rotatably connected to the inner side of the slider 19, a hollow column 20 is fixedly connected to the bottom of the turntable 29, a suction cup 13 is fixedly connected to the bottom of the hollow column 20, a spring 21 is fixedly connected between the top of the slider 19 and the inner wall of the limiting groove 17; a cross plate 49 is fixedly connected between every two slides 15, four mounting plates 51 are fixedly connected to the bottom of the material moving plate 9, a slide rod 50 is slidably connected to the inner wall of the reserved through hole on the mounting plate 51, one end of the slide rod 50 is fixedly connected to the cross plate 49, and a limiting head is provided at the other end, and a spring 52 is sleeved on the outer side of the slide rod 50.

[0091] In this embodiment, when the material transfer plate 9 is lifted, the suction cup 13 and the pressure roller 12 are initially reset downward, and the bottoms are kept flush, and the material transfer plate 9 is continuously lifted, and the lifting is controlled to be fast, so that the slider 19 moves downward until the turret 29 moves into the flip groove 16, and at this time, the limit groove 17 no longer limits the turret 29;

[0092] In the above process, along with the resetting of the pressure roller 12, the strip plate 30 will move downward, and then the wedge block 32 will move downward, and the wedge block 27 will no longer be squeezed. Therefore, the slide 15 can push the cross plate 49 to move under the rebound action of the spring 52, and then drive the slide 15 to reset and move to the closer side, so that the aluminum sheet is actively bent. At the same time, along with the above bending process, the hollow column 20 will be folded synchronously, and then cooperate with the deformation of the aluminum sheet. In this state, the aluminum sheet structure will be relatively more stable, and bending can be effectively avoided during the material transfer process.

[0093] Example 3

[0094] like Figure 8 , Fig. 9 and Fig.10 As shown, on the basis of Example 2, the present invention provides a technical solution: preferably, a piston cylinder 24 is fixedly connected to one side of the slide 15, a piston plate 25 is slidably connected between the inner walls of the piston cylinder 24, a transmission rod 26 is fixedly connected to the top of the piston plate 25, a linkage rod 22 is slidably connected to the top of the slide 15, a linkage plate 23 is fixedly connected between the top of the linkage rod 22 and the top of the transmission rod 26, the bottom of the linkage rod 22 extends to the inside of the limit groove 17 and is fixedly connected to a pressure head, the pressure head is used in conjunction with the slider 19, and the piston cylinder 24 and the hollow column 20 are connected through a pipeline.

[0095] In this embodiment, when taking materials, when the slider 19 moves upward until it contacts and pushes the linkage rod 22 to move, the linkage plate 23 and the transmission rod 26 move upward, and drive the piston plate 25 to move upward, so that negative pressure is generated in the piston cylinder 24 and transmitted through the pipeline, so that the suction cup 13 can adsorb the aluminum sheet.

[0096] like Figure 4 , Figure 6 and Fig.10 As shown, preferably, the top of the material moving plate 9 is fixedly connected to a fixed plate 36, one side of the fixed plate 36 is slidably connected to a plurality of push rods 37, one end of the push rods 37 is fixedly connected to a wedge block 4 38, one end of the push rods 37 away from the wedge block 4 38 extends to the other side of the fixed plate 36 and is fixedly connected to a stop block, the top of the linkage plate 23 is fixedly connected to a wedge block 28, the wedge block 28 is used in conjunction with the wedge block 4 38, and a spring 2 39 is sleeved on the outer side of the push rod 37.

[0097] In this embodiment, after taking the material, when it is necessary to put it down, the pressing roller 12 is pressed upward, thereby pushing the slide 15 to move to the side away from it. In the initial stage, the inclined surface of the wedge block 28 will contact and press the wedge block 4 38, so that the wedge block 28 moves downward, and drives the piston plate 25 to move downward (to achieve reset) through the transmission rod 26, so that when the subsequent slider 19 contacts the pressure head, the piston plate 25 can move upward; continue the above process until the wedge block 28 passes over the wedge block 4 38, at which time, the wedge block 4 38 no longer presses the wedge block 28, so the subsequent operation can make the wedge block 28 move normally;

[0098] When the wedge block 28 is reset, the wedge block 28 will press the inclined surface of the wedge block 4 38, so that the wedge block 4 38 moves in a direction perpendicular to the moving direction of the wedge block 28 to provide space, so that the wedge block 28 can be reset. This process occurs along with the reset process of the slide 15.

[0099] Before the aluminum sheet is adsorbed, the above action is also performed once along with the action of the pressure roller 12, so that the piston plate 25 moves downward. During this process, positive pressure is generated in the piston cylinder 24, so air is blown through the suction cup 13 to adsorb the position to be adsorbed.

[0100] Example 4

[0101] like Figure 3 and Figure 5 As shown, on the basis of Example 3, the present invention provides a technical solution: preferably, the movable end of the Z-axis servo module 3 is fixedly connected to a mounting frame 41, one side of the mounting frame 41 is fixedly connected to a dust suction pipe 42, the dust suction pipe 42 is connected to an external dust suction device through a pipeline, the movable end of the Z-axis servo module 3 is symmetrically fixedly connected to two support plates 43, the bottoms of the two support plates 43 are slidably connected to positioning rods 44, the bottoms of the positioning rods 44 are fixedly connected to lower pads 45, the ends of the positioning rods 44 away from the lower pads 45 extend to the top of the support plates 43 and are fixedly connected to upper pads 46, a spring 48 is sleeved on the outer side of the positioning rods 44 and located below the support plates 43, the positioning rods 44 are configured as square rods, and the sides close to the lower pads 45 are fixedly connected to pressure blocks 47.

[0102] During the drilling process, the metal plate needs to be drilled first, and then the PCB board is drilled after drilling through it. In the process, not only a large amount of debris will be generated, but in the above-mentioned precise positioning process, positioning is based on the reflection of the metal. The generation of debris will inevitably affect the reflection effect of the metal, thereby affecting the monitoring of the drilling depth. In addition, since the aluminum sheet and the PCB board are two types of plates stacked together, there is a gap between the two, which not only affects the actual drilling depth (the distance from the metal surface to the PCB surface has an additional gap length), but also at the moment of drilling through the aluminum sheet, the drill bit will be suddenly suspended in the air, resulting in a sudden change in force, and at the moment of contacting the PCB board, it will obtain greater resistance, which will not only affect the drilling effect, but also easily damage the PCB board, and also cause damage to the drill bit;

[0103] In this embodiment, by providing a pressing block 47, the pressing block 47 can be made to contact and squeeze the aluminum sheet before drilling, so that the aluminum sheet and the PCB board are squeezed and tightly fit, which can reduce the relative displacement and vibration of the two layers of boards during the drilling process, so that the drill bit can pass through the two layers of boards more stably, and when the two layers of boards are tightly fitted, the resistance encountered by the drill bit during the penetration process will be relatively more uniform, avoiding sudden force changes caused by different materials. In addition, pressing can also reduce the accumulation of drill chips between the two layers of boards, keep the drilling area clean, and thus help the drill bit to pass through the two layers of boards smoothly; during the drilling process, the debris generated is sucked out by the vacuum cleaner to the vacuum tube 42, so the debris can be discharged in the first time, thereby avoiding the influence of the debris on the monitoring of the optical sensor.

[0104] In addition, in the above process, the pressing block 47 can directly enclose the drilling position to reduce the debris flying around and affecting the use of the optical sensor.

[0105] Example 5

[0106] like Figure 5 and Fig.11 As shown, based on Example 4, the present invention provides a technical solution: preferably, the pressing block 47 is set as a copper block, one end of the top of the pressing block 47 is fixedly connected to a copper tube 54, and heat-conducting fins are arranged between the copper tubes 54.

[0107] During the drilling process, the drilling position continuously generates heat. To ensure accuracy and that the drilling operation position does not exceed the range of the aluminum sheet, the optical sensor irradiation position is close to the drilling position, so that the heat can be easily transferred to the light source irradiation position;

[0108] In this embodiment, by providing a copper pressing block 47, when heat diffuses on the aluminum sheet, it can be preferentially transferred to the pressing block 47, thereby reducing the amount of heat diffused outward through the aluminum sheet. After the heat is transferred to the pressing block 47, it diffuses toward the copper tube 54 and is discharged in a concentrated manner under the action of the wind force of the vacuum cleaner, thereby greatly reducing the impact of temperature on the optical sensor.

[0109] The following is a detailed description of the working principle of the drilling device used for PCB processing.

[0110] like Figure 1-Figure 13 As shown, clean and adjust the table to ensure that the drilling platform surface is flat and free of granular garbage. Use special pins to fix the PCB board to be processed on the drilling platform. According to the existing holes on the PCB board, input the program of drilling pin holes into the drilling machine, drill holes on the drilling platform for fixing the position of the PCB board, and plant pins to fix the PCB board on the drilling platform.

[0111] Aluminum sheets of 0.13 mm are stacked on the loading platform 40; the motor 10 is controlled to work, so that the flip shaft 7 rotates, and drives the connecting rod 8 to flip, so that the material moving plate 9 flips to the top of the material moving platform 40, and the flip shaft 7 continues to flip, so that the material picking component absorbs the aluminum sheet. When picking up the material, with the downward pressure of the material moving plate 9, the pressure roller 12 will first contact the aluminum sheet, so that the pressure roller 12 and the pressure frame 11 push the pressure rod 53 upward, and then drive the strip plate 30 and the connecting plate 31 to move upward relative to the material moving plate 9, squeeze the spring three 35, and make the wedge block three 32 squeeze the wedge block one 27, so that the slide 15 moves to the side away from the wedge block one 27, and the suction cup 13 has not yet contacted the aluminum sheet;

[0112] The cross section of the wedge block 32 is a right-angled trapezoid. When the wedge block 1 27 contacts the top surface thereof, the suction cup 13 just contacts the aluminum sheet, and the hollow column 20 pushes the slider 19 upwards with continued downward pressure. In this process, the slider 19 and the rotating head 29 completely slide into the deep of the limiting groove 17 as the slider 19 slides upwards, thereby preventing the rotating head 29 from turning over.

[0113] During the above process, when the slider 19 moves upward until it contacts and pushes the linkage rod 22 to move, the linkage plate 23 and the transmission rod 26 move upward, and the piston plate 25 moves upward, so that negative pressure is generated in the piston cylinder 24 and transmitted through the pipeline, so that the suction cup 13 can adsorb the aluminum sheet; a photoelectric sensor is installed inside the limit groove 17. When the light source is blocked by the slider 19, it means that the upward movement distance of the slider 19 exceeds a certain value, which is sufficient to generate a certain negative pressure in the piston cylinder 24 through transmission, so that the aluminum sheet can be sucked up;

[0114] As the pressure roller 12 is reset, the strip plate 30 moves downward, and then the wedge block 32 moves downward, and the wedge block 1 27 is no longer pressed. Therefore, the slide 15 can push the cross plate 49 to move under the rebound action of the spring 5 52, and then drive the slide 15 to reset and move to the side close to each other, so that the aluminum sheet is actively bent. At the same time, the hollow column 20 is synchronously folded with the above bending process, so as to cooperate with the deformation of the aluminum sheet.

[0115] Then the motor 10 is controlled to work and the flip shaft 7 is rotated, so that the material moving plate 9 can be flipped to be located above the drilling platform, and the material moving plate 9 will be pressed down toward the drilling platform with the continuous flipping of the flip shaft 7, and the slide 15 will be pushed to the side away from the drilling platform by pressing the pressure roller 12 upward. In the initial stage, the inclined surface of the wedge block 28 will contact and press the wedge block 4 38, so that the wedge block 28 moves downward, and the piston plate 25 is driven to move downward (to achieve reset) through the transmission rod 26, so that when the slider 19 contacts the pressure head later, the piston plate 25 can move upward;

[0116] The above process is continued until the wedge block 28 passes over the wedge block 4 38. At this time, the wedge block 4 38 no longer presses the wedge block 28, so the subsequent operation can make the wedge block 28 move normally; when the wedge block 28 is reset, the wedge block 28 will press the inclined surface of the wedge block 4 38, so that the wedge block 4 38 moves in a direction perpendicular to the moving direction of the wedge block 28 to provide space, so that the wedge block 28 can be reset. This process occurs along with the reset process of the slide 15.

[0117] During the placement of the aluminum sheet, the aluminum sheet will first contact the drilling platform from the center, and the two wings will be spread out to make the two sides flat, and the dust will be fanned out, so that the two surfaces can fit more closely and reduce the error caused by the gap between the two.

[0118] The material transfer plate 9 is flipped to the upper side of the material loading platform 40, but the material is not taken out to provide space for the drill to drill; then the X-axis servo module 2 and the Z-axis servo module 3 are controlled to work, and the Y-axis servo module 4 is coordinated to work, so that the drill 5 moves to the position where the hole needs to be drilled to drill. During the adjustment and control process of the Z-axis servo module 3, its active end will move to drive the drill and the optical sensor to move synchronously. The optical sensor is vertically irradiated downward on the aluminum sheet. By using the reflection effect of the metal, the sensor can quickly and accurately receive the feedback signal, and then obtain the distance from the drill 5 to the metal surface;

[0119] Before the drilling, the pressing block 47 is first made to contact and squeeze the aluminum sheet, so that the aluminum sheet and the PCB board are squeezed and tightly fit, which can reduce the relative displacement and vibration of the two layers of boards during the drilling process, so that the drill bit can pass through the two layers of boards more stably. When the two layers of boards are tightly fitted, the resistance encountered by the drill bit during the penetration process will be relatively more uniform, avoiding sudden force changes caused by different materials. In addition, pressing can also reduce the accumulation of drill cuttings between the two layers of boards, keep the drilling area clean, and thus help the drill bit to pass through the two layers of boards smoothly. During the drilling process, the generated debris is sucked out by the vacuum cleaner to the vacuum pipe 42, so that the debris can be discharged in the first time, thereby avoiding the influence of the debris on the monitoring of the optical sensor.

[0120] In addition, when heat diffuses on the aluminum sheet, it can be preferentially transferred to the pressing block 47, thereby reducing the amount of heat diffused outward through the aluminum sheet. After the heat is transferred to the pressing block 47, it diffuses toward the copper tube 54 and is discharged in a concentrated manner under the action of the wind force of the vacuum cleaner, thereby greatly reducing the impact of temperature on the optical sensor.

[0121] Among them, the picking and placing of the above-mentioned aluminum sheets tend to be in a horizontal position relative to the flip axis 7, and there is a very small horizontal displacement during the picking and placing process. This displacement helps to make the aluminum sheet and the lower aluminum sheet misaligned when picking up the material, and in subsequent operations, the two wings are folded up first, which can effectively reduce the disturbance of the lower aluminum sheet when taking the aluminum sheet.

[0122] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A drilling device for PCB processing, comprising a main body (1), a three-axis component is arranged on the top of the main body (1), and a drilling machine (5) is arranged at the movable end of the three-axis component; characterized in that: include: A material carrier (6), the material carrier (6) being fixedly connected to one side of the main body (1), and an adjustable lifting material carrier platform (40) being arranged inside the material carrier (6); a flip shaft (7), the flip shaft (7) being hinged in parallel to the top of the main body (1), the two flip shafts (7) being connected by belt and pulley transmission, a motor (10) being fixedly installed on the top of the main body (1), the output end of the motor (10) being fixedly connected to one end of one of the flip shafts (7), and two connecting rods (8) being symmetrically fixedly connected to the outer side of the flip shaft (7); a material transfer plate (9), the top ends of the connecting rods (8) being hinged to the bottom of the material transfer plate (9), and the bottom of the material transfer plate (9) being provided with four material taking components for adsorbing aluminum sheets; The material taking component comprises a groove (14) formed at the bottom of the material moving plate (9); a slide table (15) is slidably connected to the inner wall of the groove (14); two limit bars slidably connected to the material moving plate (9) are fixedly connected to one side of the slide table (15); a suction cup (13) is arranged below the slide table (15); two pressure rods (53) are slidably connected to the bottom of the material moving plate (9); a pressure frame (11) is fixedly connected between the bottom ends of the two pressure rods (53); the inner side of the pressure frame (11) is rotated The top ends of the pressure rods (53) extend to the top of the material transfer plate (9) and are fixedly connected to the strips (30), a connecting plate (31) is fixedly connected between the two strips (30), the ends of the strips (30) away from each other are fixedly connected to wedge blocks 3 (32), and the side of the slide (15) away from the limit strip is fixedly connected to wedge block 1 (27) used in conjunction with wedge block 3 (32); the outer side of the pressure rod (53) is covered with spring 3 (35); The bottom of the slide (15) is provided with a turning groove (16), the top of the inner wall of the turning groove (16) is provided with a limiting groove (17), both sides of the inner wall of the limiting groove (17) are provided with sliding grooves (18), a sliding block (19) is slidably connected between the two sliding grooves (18), the inner side of the sliding block (19) is rotatably connected with a rotating head (29), the bottom of the rotating head (29) is fixedly connected with a hollow column (20), the suction cup (13) is fixedly connected to the bottom of the hollow column (20), and the sliding block A spring 1 (21) is fixedly connected between the top of the slide (19) and the inner wall of the limit groove (17); a transverse plate (49) is fixedly connected between each two slides (15); four mounting plates (51) are fixedly connected to the bottom of the material shifting plate (9); a slide rod (50) is slidably connected to the inner wall of the reserved through hole on the mounting plate (51); one end of the slide rod (50) is fixedly connected to the transverse plate (49), and a limit head is provided at the other end; a spring 5 (52) is sleeved on the outer side of the slide rod (50); A piston cylinder (24) is fixedly connected to one side of the slide (15), a piston plate (25) is slidably connected between the inner walls of the piston cylinder (24), a transmission rod (26) is fixedly connected to the top of the piston plate (25), a linkage rod (22) is slidably connected to the top of the slide (15), a linkage plate (23) is fixedly connected between the top of the linkage rod (22) and the top of the transmission rod (26), the bottom of the linkage rod (22) extends to the inside of the limiting groove (17) and is fixedly connected to a pressure head, the pressure head is used in conjunction with the slide block (19), and the piston cylinder (24) and the hollow column (20) are connected through a pipeline; The top of the material shifting plate (9) is fixedly connected to a fixed plate (36), one side of the fixed plate (36) is slidably connected to a plurality of push rods (37), one end of each push rod (37) is fixedly connected to a wedge block four (38), one end of each push rod (37) away from the wedge block four (38) extends to the other side of the fixed plate (36) and is fixedly connected to a stopper, the top of the linkage plate (23) is fixedly connected to a wedge block two (28), the wedge block two (28) is used in conjunction with the wedge block four (38), and the outer side of the push rod (37) is sleeved with a spring two (39).

2. A drilling device for PCB processing according to claim 1, characterized in that: The movable end of one of the three-axis components is fixedly connected to a mounting frame (41), and a dust suction pipe (42) is fixedly connected to one side of the mounting frame (41). The dust suction pipe (42) is connected to an external dust suction device through a pipeline. The three-axis component is also symmetrically fixedly connected to two support plates (43) at the movable end. The bottoms of the two support plates (43) are slidably connected to positioning rods (44), and the bottoms of the positioning rods (44) are fixedly connected to lower pads (45). One end of the positioning rod (44) away from the lower pad (45) extends to the top of the support plate (43) and is fixedly connected to an upper pad (46). A spring four (48) is sleeved on the outer side of the positioning rod (44) and located below the support plate (43). The positioning rod (44) is set as a square rod, and the sides of the lower pad (45) close to each other are fixedly connected to a pressure block (47).

3. A drilling device for PCB processing according to claim 2, characterized in that: The pressing block (47) is configured as a copper block, one end of the top of the pressing block (47) is fixedly connected to a copper tube (54), and heat conducting fins are provided between the copper tubes (54).

4. A drilling process for PCB processing, characterized in that: The drilling device according to any one of claims 1 to 3 above, The following steps are involved: S1: Clean and adjust the table surface to ensure that the drilling platform surface is flat and free of granular garbage; S2: Use special pins to fix the PCB to be processed on the drilling platform, and slightly bend a 0.13mm thick aluminum sheet upwards and cover it on the PCB, and fix it at the edge; S3: transferring the drilling program and parameters into the drilling machine, the parameters including the drilling position and drilling depth; S4: lower the drill bit until the drill bit just touches the aluminum sheet, and record the spatial position parameters of the drill bit end at this time; repeat the above operation at least 3 times to obtain at least 3 spatial position parameters, and calculate whether the PCB and the aluminum sheet are placed horizontally based on the obtained data. If not, adjust the drilling platform to make them horizontal; S5: lower the drill bit to drill. When the drill bit just contacts the aluminum sheet, a signal is generated by the conductive sensing device of the drilling platform. The plane height of the aluminum sheet is measured by the amplifier and the optical ruler. The height information of the end of the drill bit at this time is recorded and recorded as the drilling depth origin. Drilling continues according to the drilling depth parameter. S6: From the origin of the drilling depth to the drilling depth, the sensor irradiates the aluminum sheet with a light source to determine the distance between the drill bit and the aluminum sheet, and sets the reflection depth parameter according to the drilling depth; S7: Clean the drill hole to ensure that no residue enters the drill hole, measure whether the drill depth meets the standard, and compare the preset depth parameters with the actual drill depth to adjust the parameters.

5. The drilling process for PCB processing according to claim 4, characterized in that: In step S2, a program for drilling pin holes is input into a drilling machine based on existing hole positions on the PCB board, holes for fixing the position of the PCB board are drilled on the drilling platform, and pins are planted to fix the PCB board on the drilling platform.

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