155 results about "Hole drilling method" patented technology

A curtain grouting reinforcement method for a tunnel group in a deep backfill area, and a reinforcement effect assessment method. The reinforcement method comprises the following steps: S1, calibrating hole positions according to design; S2, mounting a drilling rig; S3, drilling holes; S4, burying orifice pipes; S5, performing grouting; S6, sealing the holes; and S7, performing the next drilling and grouting cycle. Investment saving and safe and efficient construction are achieved, tunnel surrounding rocks can be fully reinforced, engineering geological conditions are improved, tunnel cavern stability is good, and ground surface settlement is small. The reinforcement effect assessment method comprises an inspection-hole drilling method, multi-wave and multi-component engineering seismograph inspection, assessment based on a high-definition drilling video, assessment based on soil and stone mixture parameter changes before and after grouting, etc., such that multi-angle comprehensive analysis can be achieved, grouting reinforcement effect assessment is more accurate, and a curtain grouting effect assessment system is further improved, thereby providing research ideas for inspecting and assessing the grouting effect in soil-rock mixed backfill areas.

The invention provides an industrial guide rail drilling method and system. The method comprises the following steps of material pretreatment and positioning reference generation; guide rail hydraulic self-locking clamping; a reference hole laser positioning and drill bit path planning step; self-adaptive drill bit spacing adjustment is carried out; double-sided synchronous drilling and vibration suppression are achieved; integrating online burr detection and burr removal; a cutting force closed-loop control step; cooling, lubricating and self-adaptive spraying; a step of continuously discharging and automatically sorting; and predicting the service life of the cutter and replacing the cutter. The scheme has the following advantages that through the V-shaped clamping mechanism and the hydraulic compensation system, synchronous clamping of the four guide rails is achieved, and the clamping time is shortened to 2 minutes per batch; drilling units are symmetrically arranged on the guide rail up and down, double-face hole group machining is completed at a time, and 0.08 mm average positioning deviation caused by the overturning procedure is eliminated; the integrated acoustic emission sensor monitors the abrasion state of the drill bit in real time, when the cutting force fluctuation is larger than 15%, the feeding amount is automatically compensated, and the rejection rate is reduced to 1.5% from 12%.

The invention relates to the technical field of printed circuit boards, in particular to a mechanical drilling method based on a copper thickness drilling split cutter. The method comprises the following steps: step 1, acquiring the total copper thickness Htotal of a PCB laminated board, setting a drilling copper thickness threshold H threshold, and enabling the H threshold to be smaller than the Htotal, step 2, acquiring parameters of each drill hole in the PCB, counting the number of drill holes corresponding to the same drill hole diameter, acquiring a drilling copper thickness value H actual corresponding to each drill hole with the same hole diameter, selecting a standard drill tool diameter phi standard for the drill holes with the same hole diameter, and setting the drilling copper thickness threshold H threshold to be smaller than the Htotal; step 3, when the real H is greater than the threshold H, if the user selects to divide the tool, dividing the tool to enable the tool diameter of the drilling tool to meet the following condition: phi real = phi standard + m, and if the user does not select to divide the tool, keeping the original tool diameter unchanged and enabling phi real to be equal to phi standard; when the actual H is smaller than or equal to the threshold H, the original cutter diameter is kept unchanged; and 4, the drilling equipment uses different parameters to conduct drilling according to the cutter dividing data, high-quality drill holes can be drilled through the method, and the service life of the drilling cutter is effectively prolonged.

The invention belongs to the technical field of circuit board processing, and particularly relates to flexible circuit board drilling equipment and a drilling method thereof.The flexible circuit board drilling equipment comprises a box body, a filtering piece arranged on the box body and an electric sliding rail, and further comprises two workbenches which are slidably connected to the electric sliding rail and used for being alternately located at a feeding and discharging station and a drilling station; the negative pressure mechanism is arranged on the back surface of the box body and is used for applying negative pressure to the workbench at the drilling station for dust extraction during drilling; the auxiliary mechanism comprises a cleaning part arranged above the box body, a linkage part arranged at the rear end of the box body and an impurity removing part arranged below the filtering part; the guide grooves are formed in the inner walls of the front side and the rear side of the box body; and the trapezoidal block is fixedly connected in the box body. According to the device, integrated operation of efficient drilling, automatic dust removal and cleaning and safety protection can be achieved.

The invention relates to the technical field of planet carrier machining, in particular to a finish turning and drilling method for a planet carrier of a planetary reducer, which comprises the following steps of: acquiring various monitoring data in real time in each machining stage in the finish turning process of the planet carrier; in each processing stage, acquiring a temperature rise deviation characteristic value at each moment; dividing a time period between the current moment and the initial moment of the processing stage into temperature rise response intervals; acquiring an association response deviation characteristic value of various monitoring data in each temperature rise response interval, acquiring a heat accumulation influence coefficient in each temperature rise response interval by combining the change trend of various monitoring data in each temperature rise response interval, and acquiring an adjustment response characteristic value at the current moment; and the cutting speed at the current moment and the injection pressure of the cutting fluid are adjusted. The planet carrier machining deviation caused by workpiece deformation and deviation due to the heat accumulation effect is effectively reduced, and the machining precision and the use performance of the planet carrier are improved.

The invention provides a drilling method for a laser X-shaped through hole of a circuit board and the circuit board, and the drilling method for the laser X-shaped through hole of the circuit board comprises the steps: covering a dry film on the surface of a copper-clad plate; patterning the dry film to form a mask coverage area and a non-mask area corresponding to the position of the preset positioning target; removing the dry film in a non-mask area; carrying out brownification treatment to change the color of the copper surface of the copper-clad plate in the non-mask area; and performing laser drilling on the copper-clad plate based on a positioning target by using the characteristic difference between the non-mask region and the mask coverage region as the positioning target. The characteristic difference between the color-changing copper surface in the non-mask area and the non-color-changing copper surface below the mask covering area is used as a positioning target of laser drilling. A traditional low-precision mechanical drilling positioning mode is replaced, the positioning reference is directly generated on the plate surface by utilizing the high-precision characteristic of the photoetching technology, the manufacturing precision of the positioning target is fundamentally improved, and the positioning target is particularly suitable for drilling scenes with strict position precision requirements and is beneficial for improving the product yield and reliability.

The invention relates to the technical field of machining, in particular to a bolt rod drilling clamp and method. The clamp comprises a bottom plate and a V-shaped block support; the V-shaped block support is mounted on the top surface of the bottom plate; a plurality of V-shaped grooves are formed in the top surface of the V-shaped block support and are sequentially arranged at intervals from left to right; a plurality of pressing blocks are installed on the top face of the V-shaped block support, and every two V-shaped grooves are correspondingly provided with one pressing block. The middle of each pressing block is installed through a pressing screw. According to the drilling method, the clamp is adopted for clamping a bolt product to be machined. The clamp can clamp a plurality of bolt products to be machined at a time, so that the drilling efficiency of bolt rod parts is improved. The V-shaped block support and the pressing block are used for limiting and pressing bolt products, stability is better, two bolt products can be pressed at the same time through one pressing plate, only the pressing screws need to be tightened during pressing, and compared with the prior art, operation is easy and convenient, and the purpose of rapid clamping is achieved.

The invention provides an electromagnetic adsorption type drilling actuator capable of achieving automatic feeding and an automatic drilling method, and relates to the technical field of intelligent machining. The electromagnetic adsorption type drilling actuator comprises a drilling machine body, a connecting support, a feeding system, an electromagnetic adsorption device, an image sensing unit and a control system; the connecting support is slidably connected with the drilling machine body and fixedly connected with the tail end of the mechanical arm. The feeding system is fixedly arranged on the connecting bracket; a moving part of the feeding system is fixedly connected with the drilling machine body; the electromagnetic adsorption device is fixedly arranged on the connecting support, and the adsorption face of the electromagnetic adsorption device faces the feeding direction of the drilling machine body. The image sensing unit is fixedly arranged on the drilling machine body; and the control system is electrically connected with the drilling machine body, the feeding system, the electromagnetic adsorption device and the image sensing unit. A visual module is integrated on the aspect of the device, an executing mechanism with the real-time environment sensing capacity is constructed, and cooperative control of precise feeding transmission and self-adaptive adsorption is achieved through modular design.

The invention discloses an anti-deviation hole drilling method and system based on geological feedback information, and relates to the technical field of drilling anti-deviation regulation, and the method comprises the steps: monitoring the stress change of a drill bit of a drilling machine in real time, and generating a stress signal data set; processing the stress signal data set, and constructing stress change quadrant distribution; generating an abnormal trigger discrimination result based on the abnormal trigger discrimination; if the abnormal triggering judgment result is that heterogeneous stratum triggering is abnormal, surrounding rock strength quadrant distribution is generated; and fusion control of local cutting tooth load self-adaptive control and direction adjusting mechanism global control is carried out. The technical problems that in the prior art, when drilling is conducted in the heterogeneous stratum, hole deviation inducements are difficult to accurately recognize, effective hole deviation prevention and correction means are lacked, the drilling precision is poor, and the stability is insufficient are solved, effective prevention and correction of hole deviation of the drill bit of the drilling machine under the heterogeneous stratum are achieved, and the drilling efficiency is improved. And the drilling precision and stability are improved.

The invention discloses a prospecting drilling method for a steeply inclined ore deposit, which comprises the following steps of: firstly, carrying out comprehensive geological survey, acquiring and analyzing geological structure, rock characteristics and ore body distribution, designing a drilling path, downwards drilling on the ground according to a design scheme to form a main drill hole, then forming branch holes at different positions of the main drill hole, and finally, carrying out drilling on the main drill hole. And after exploration of each branch hole is completed, hole sealing operation is carried out. The comb-shaped exploration branch hole structure can obtain geological information of the ore body from multiple angles and positions, compared with traditional single-hole exploration, the shape, thickness change, grade distribution and the like of the ore body can be known in detail, exploration blind areas are effectively reduced, exploration precision is improved, exploration of multiple positions can be completed in the one-time drilling process through the one-hole multi-branch design, and the exploration efficiency is improved. The exploration efficiency is greatly improved, and the exploration time and cost are reduced.

A fully steerable flexible curved drilling robot device comprises a first flexible tube including a concentric through hole centered on a longitudinal axis, a second flexible tube including an eccentric through hole, wherein the second flexible tube is positioned in the concentric though hole of the first flexible tube, and configured to move translationally along the longitudinal axis and rotationally about the longitudinal axis, and a drill bit connected via a bearing to a flexible drive shaft, the drill bit positioned at a distal end of the first flexible tube, and wherein the flexible drive shaft extends through the eccentric through hole of the second flexible tube and is configured to provide a rotational torque to the drill bit. A steerable flexible curved drilling robot system and drilling method are also disclosed.

This invention discloses a rapid drilling device and method for the floor of coal mine roadways. It includes a drilling rig, drill rods, and a drill bit. The drill rods consist of a transition drill rod and a circular drill rod. A water channel is provided through the transition drill rod, the circular drill rod, and the drill bit at a certain thickness. A water extraction pipe is provided inside the transition drill rod and the circular drill rod. A water extraction pipe and a water supply pipe are sleeved through the center of the drill arm. The drill arm's water extraction pipe communicates with the drill rod's water extraction pipe and the drill bit's inner cavity. The drilling rig's water supply pipe communicates with the drill rod's water channel. During drilling, water injected from the water supply pipe enters the bottom of the hole through the water channel. The water at the bottom of the hole, carrying drill cuttings, is extracted sequentially through the hollow drill bit, the drill rod's water extraction pipe, and the drill arm's water extraction pipe under external negative pressure. This allows drilling mud to be continuously extracted from the center of the drill rod during drilling, eliminating the need for special drill bit removal and cuttings disposal, shortening the drilling progress, greatly improving drilling efficiency, ensuring the floor pressure relief effect, and providing technical support for safe production on site.

The invention relates to a drilling method, in particular for a turbine shaft of an aircraft turbine engine, which method is implemented by a drilling machine (100) including a drill rod (8), a cutting tool (4) mounted on a free end of the drill rod, and an anti-vibration ring (10) positioned on the drill rod behind the cutting tool, the anti-vibration ring including a sleeve including a bore extending longitudinally coaxially between a front end and a rear end of the sleeve, as well as a first absorption means positioned in the bore and a second absorption means positioned on an outer circumference of the sleeve, the method including steps of: a) placing the anti-vibration ring on the drill rod near a free end of the drill rod; b) securing the cutting tool to the free end of the drill rod; c) drilling a bore to be made in the turbine shaft by pushing, during which the anti-vibration ring is inserted into an inlet (21) of the bore to be made.

The present invention provides a laser drilling method, comprising the following steps: S1: determining workpiece positioning and target aperture; S2: determining workpiece rotation speed and protective gas flow direction; S3: determining laser power, laser frequency, scanning speed, laser beam focus motion diameter, and zoom increment; S4: determining the laser incident angle; and S5: drilling using the above-determined processing parameters. The laser drilling method provided by the present invention can improve drilling efficiency, improve drilling quality, significantly reduce taper, and achieve the preparation of holes of various tapers through posture adjustment.

A method for drilling using a cutting tool capable of being rotated and translated about / along the same axis by a drilling device, which includes a cutting motor capable of causing the cutting tool to rotate about the axis and a feed motor capable of causing the cutting tool to translate along the axis. The method includes adapting control of the motors. The speeds of the cutting motor and the feed motor are controlled as long as the torque and the thrust are below the torque threshold and the thrust threshold, respectively; when the torque or the thrust reaches or exceeds the torque threshold or the thrust threshold, the current of the motor generating the torque or the thrust whose threshold has been exceeded is controlled, whereas the other motor is still subject to speed control, so the feed per revolution of the cutting tool is equal to a predetermined value.

The embodiment of the application belongs to the technical field of thermoplastic drilling processing, and relates to a drilling method based on ultrasonic-assisted thermoplastic and a drilling system. The drilling method is applied to the drilling system based on ultrasonic-assisted thermoplastic, and the method comprises the following steps: controlling the drilling system to rotate at a preset rotating speed and ultrasonic vibration at a preset amplitude; and controlling the drilling system to move towards a workpiece to drill the workpiece. The method can reduce the processing force of the drilling system, facilitate chip removal in the hole forming process, and prolong the service life of the thermoplastic drill.

The invention relates to the technical field of circuit board production, in particular to a numerical control drilling method for a double-sided printed circuit board production line. The method comprises the following steps: determining drilling production parameters of each drilling hole according to radiuses and distribution positions of a plurality of drilling holes of a circuit board to be produced; performing drilling operation on the circuit board to be produced based on the drilling production parameters of each drill hole, and collecting multiple pieces of vibration data in a target drilling time period; consistency analysis is conducted on the multiple pieces of vibration data, and a vibration anomaly index of the target drilling time period is obtained; and according to the vibration abnormal index of the target drilling time period, whether a drilling adjustment instruction for coordinate calibration is generated or not is determined. According to the method, the situation that the drilling effect deviates from the expectation can be found in time, abnormal drilling vibration caused by positioning deviation is effectively corrected through coordinate calibration, and the positioning deviation in the PCB drilling process is always kept within the expectation error range.

The invention discloses an up-and-down collaborative laser drilling system and method, and relates to the field of collaborative working.The up-and-down collaborative laser drilling system comprises a positioning workbench, a laser collaborative drilling device and a mechanical reaming device, a positioning mold is installed on the positioning workbench, a rectangular positioning groove is formed in the top of the positioning mold, and an annular supporting boss is fixed to the inner wall of the rectangular positioning groove; the laser collaborative drilling device comprises an upper synchronous beam, a lower synchronous beam, sliding seats and laser emission heads, the positioning workbench is located between the upper synchronous beam and the lower synchronous beam, the upper synchronous beam and the lower synchronous beam synchronously move in the length direction of the positioning workbench, and the sliding seats are slidably installed at the bottom of the upper synchronous beam and the top of the lower synchronous beam correspondingly; the sliding base moves in the width direction of the positioning workbench, the laser emission heads are installed on the sliding base, light beams of the two laser emission heads coincide, the design of the upper laser emission head and the lower laser emission head in cooperation is adopted, the light beams of the two laser emission heads coincide, drilling is conducted synchronously from the upper portion and the lower portion of a plate, and the drilling efficiency is improved.

The invention discloses a tunnel drilling device capable of achieving multi-dimensional angle adjustment and a drilling method.The tunnel drilling device comprises a multi-dimensional adjustment assembly and an electric hammer installation support arranged on the multi-dimensional adjustment assembly, and an electric hammer is assembled on the electric hammer installation support; the multi-dimensional adjusting assembly comprises an X-direction sliding module, a Y-direction sliding module, a lifting assembly and an inclination angle adjusting assembly. The X-direction sliding module and the Y-direction sliding module are used for controlling the electric hammer to reciprocate in the X direction and the Y direction correspondingly, the lifting assembly is used for controlling the electric hammer to ascend and descend in the height direction, and the dip angle adjusting assembly is used for changing the axial dip angle of the electric hammer. The multi-direction adjustable electric hammer has the beneficial effects that the electric hammer can be flexibly adjusted in multiple directions, automatic and high-precision punching is achieved based on visual perception, and the complex drilling requirement of the top of a tunnel is met.

To provide a punching system which can improve efficiency of punching and shorten the work time when punching a workpiece by using a punching device.SOLUTION: A punching system 1 using a gantry type punching device comprises: drill position adjustment means S1 which adjusts a drill position; clamp operation start means S2 which fixes a workpiece; punching means S4 which performs movement control of a drill unit along the Z-axis lower side in conjunction with the clamp operation and performs punching; punching completion detection means which detects completion of the punching; punching drill lifting means which lifts a punching drill; punching drill reaching confirmation means which confirms that the drill tip has reached a workpiece upper surface position; and clamp operation release means which releases the clamp operation of a workpiece clamp in conjunction with the reaching confirmation of the drill tip.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of technological equipment, and particularly discloses a positioning device for machining an inclined hole of a seal head, which comprises a connecting base, a positioning device and a positioning device, and the connecting base comprises a plane end connected with a machining plane of a drilling machine and a machining end used for fixing a seal head workpiece; the workpiece fixing assembly is arranged on the end face of the machining end and used for fixing an end socket workpiece; and the drilling auxiliary assembly is arranged on the plane end. According to the device, the end socket workpiece is placed on the inclined plane of the base, the inclined hole machining plane of the end socket workpiece is kept consistent with the machining plane of a drilling machine through the base in the positioning device, then positioning of the inclined hole in the circumferential direction of a product is limited through the positioning block installed on the support, and after the product is positioned and pressed, the inclined hole is machined. By means of the outer circle of the bottom plane of the end socket and the appearance of the inclined hole, the inclined hole can be machined on a common drilling machine, and therefore batch machining of end socket workpieces is facilitated.

The application relates to the technical field of planet carrier drilling, in particular to a planet carrier drilling method and a drilling device for an RV reducer. The method comprises the following steps: obtaining planet carrier to-be-processed hole position coordinates, grouping the hole positions into inner layer holes and outer layer holes; preferentially processing the outer layer holes, generating an initial processing path based on a historical database and matching similar hole position layouts; performing first hole processing according to the initial processing path; after processing one hole, collecting temperature data of the processed hole position through an infrared thermal imager, and optimizing the processing path by using a simulated annealing algorithm; performing drilling processing according to the optimized processing path sequence, and recording the processing path and hole position layout features in the historical database after the current planet carrier is processed. The application aims to reduce the influence of heat accumulation on the planet carrier and improve the hole diameter precision and surface quality.

The application relates to the technical field of planet carrier machining, in particular to a fine machining and drilling method for a planet carrier of a planetary reducer, which comprises the following steps: in each machining stage in the fine machining process of the planet carrier, various monitoring data are collected in real time; in each machining stage, the temperature rise deviation characteristic value at each moment is obtained; the time period between the current moment and the initial moment of the machining stage is divided into various temperature rise response intervals; the associated response deviation characteristic value of the various monitoring data in each temperature rise response interval is obtained; the thermal cumulative influence coefficient in each temperature rise response interval is obtained in combination with the change trend of the various monitoring data in each temperature rise response interval; the adjustment response characteristic value of the current moment is obtained; and the cutting speed and the injection pressure of the cutting fluid at the current moment are adjusted. The application aims to effectively reduce the machining deviation of the planet carrier caused by the workpiece deformation and deviation due to the thermal cumulative effect, and improve the machining precision and use performance of the planet carrier.

The invention discloses a container bamboo floor row type drilling machine and a drilling method, and relates to the technical field of container bamboo floor production and processing. The drilling machine comprises two basic assemblies, each basic assembly comprises an outer rail, an inner rail and a rail block, the two outer rails are connected through a left-right stretching assembly, and a drilling assembly is arranged on each rail block. The left-right stretching assembly comprises a first rack, a second rack, a first gear and an outer sleeve, and a locking component is arranged in the first gear to fix the distance between the two base assemblies. The drilling assembly comprises a connecting block, a side convex rod, a side concave rod, a drilling block and a drilling rod, the connecting block is connected with the side concave rod through the side convex rod, and the drilling rod is driven by the driving assembly to drill holes. Through the structural design, the problems that in the prior art, drilling efficiency is low, precision is insufficient, operation is inconvenient, and equipment adaptability is limited can be efficiently solved, and the drilling requirements of container bamboo floors of different specifications are met.

The present application relates to a kind of long shaft drilling device and drilling method, drilling device includes drilling machine, drilling machine is equipped with the rotary chuck for fixing workpiece, and the drill bit for drilling, also include drilling tool, drilling tool includes end seat and movable seat, end seat is used to connect with workpiece end reference surface, end seat and movable seat are connected by crossbeam, multiple axial positioning sleeve are slidably arranged on crossbeam;Axial positioning sleeve is rotatably provided with angular positioning sleeve, angular positioning sleeve is provided with guide hole;The base of drill bit and angular positioning sleeve are provided with locking mechanism for being connected, locking mechanism can be radially telescopic;Axial positioning sleeve and angular positioning sleeve are all provided with fastening mechanism.The present application is suitable for the positioning machining of the radial hole of longer shaft, especially suitable for the positioning machining of multiple radial holes on longer shaft, without repeated positioning, can greatly improve processing efficiency, and can improve the machining precision consistency of same batch workpiece.

The present application relates to the technical field of circuit board production, and particularly relates to a numerical control drilling method for a double-sided printed circuit board production line. The method comprises the following steps: determining drilling production parameters of each drilling hole according to radii and distribution positions of a plurality of drilling holes of a to-be-produced circuit board; performing drilling operation on the to-be-produced circuit board based on the drilling production parameters of each drilling hole, and collecting a plurality of vibration data within a target drilling time period; performing consistency analysis on the plurality of vibration data to obtain a vibration anomaly index of the target drilling time period; and determining whether to generate drilling adjustment instructions for coordinate calibration according to the vibration anomaly index of the target drilling time period. The present application can timely find that drilling effect deviates from expectation, and effectively correct abnormal drilling vibration caused by positioning deviation through coordinate calibration, so that the positioning deviation in the PCB drilling process is always kept within an expected error range.

This application provides a drilling method, drilling system, and back drilling method for a circuit board. The method involves drilling through the circuit board using a preset drilling path. The tool drills through at least the first conductive layer, the second conductive layer, and a layer that is prohibited from being drilled during back drilling. An electrical signal generated by the tool during the drilling process is obtained. Based on the electrical signal, the distance between the first and second conductive layers is determined. Based on this distance, the back drilling depth for the through-hole is determined. Since there is no other metal between the first and second conductive layers, no noise signals are typically generated. Therefore, the distance between the first and second conductive layers can be accurately determined based on the electrical signal, and thus the back drilling depth can be accurately determined.

This invention relates to the field of PCB manufacturing technology, specifically disclosing a PCB drilling method based on differentiated processing of the same hole diameter. The method includes the following steps: acquiring hole position information and integrating measured data from the board surface for condition prediction; assigning virtual tool diameter codes to different hole positions according to the evaluation results and coordinating manufacturability for high-risk hole positions; using codes to drive two-layer parameter decision-making, generating Pareto optimal parameters through multi-objective optimization; during processing, decoupling thermo-mechanical-vibration interaction errors in real time through a multi-source sensor fusion model and generating multi-dimensional compensation instructions; and finally, achieving self-learning directional fine-tuning and iterative closed-loop of processing parameters through the linkage analysis of online hole wall quality assessment and tool life prediction. This invention achieves comprehensive intelligent processing from inter-hole differentiated parameter matching to dynamic precision feedback control within the hole, significantly improving hole wall quality and processing efficiency while effectively reducing overall processing costs, and has good industrial promotion value.

The application discloses a segmented drilling method for a wire needle jig, and relates to the field of precision machining. The segmented drilling method for the wire needle jig is used for micro-hole drilling of a PCB with a large depth-diameter ratio. According to the drilling characteristics of different depths, a segmented operation scheme is designed, and the scheme sequentially includes a positioning stage, an efficient chip removal stage and an outlet finishing stage. Different drilling strategies are executed in different stages, and the rotational speed, the feed rate and the single feed depth are accurately controlled. In this way, an accurate guide hole can be formed on the plate material in the initial stage, continuous and smooth drilling can be realized on the plate material in the middle stage, and the edge collapse of the hole outlet can be effectively avoided in the final stage. In the machining process, the machining parameters are dynamically adjusted by monitoring the load. Compared with the fixed machining strategy, the machining efficiency can be effectively improved, the plate material failure rate can be reduced, and the service life of the drill bit can be prolonged.