211 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 utility model relates to a drilling positioning device suitable for different templates, and belongs to the technical field of machining. Comprising a plate body and a magnet, the magnet is located on the side where one corner of the plate body is located, the plate body is provided with a plurality of positioning hole sets, and each positioning hole set is used for positioning the position, needing to be drilled, of the template. The utility model provides a drilling jig which can adapt to templates of various sizes and types, so that the drilling precision and the production efficiency are improved, the operation process is simplified, and in addition, the problem that in a traditional die drilling method, manual line drawing and positioning are carried out firstly, and then drilling operation is carried out is solved at the same time. According to the utility model, the positioning hole groups with different sizes are arranged on the plate body, and the template is fixed by the magnets, so that a flexible and multi-purpose drilling solution is realized.

The invention provides a laser drilling method. The laser drilling method comprises the following steps: S1, positioning a workpiece and determining a target aperture; s2, the rotating speed of the workpiece and the airflow direction of protective gas are determined; s3, determining laser power, laser frequency laser, scanning speed, laser beam focus movement diameter and zooming increment; s4, determining a laser incident angle; s5, the determined machining parameters are used for drilling; according to the laser drilling method provided by the invention, the drilling efficiency can be improved, the drilling quality can be improved, the taper can be greatly reduced, and the preparation of holes with various tapers can be realized through pose adjustment.

The invention discloses a mountain slope drilling device and a drilling method thereof, and relates to the technical field of mountain slope drilling. The mountain slope drilling device comprises a vehicle body, a drilling assembly and a traction assembly, the vehicle body is used for moving on the mountain slope, the drilling assembly and the traction assembly are arranged at the two ends, in the first direction, of the vehicle body correspondingly, and the traction assembly comprises a traction unit and a guide frame; the traction unit is used for collecting or releasing a traction rope, the guide frame corresponds to the traction unit and is arranged on the side, away from the vehicle body, of the traction unit, the traction rope is used for penetrating through the guide frame, and the other end of the traction rope is used for being anchored to the top of a mountain slope. The mountain side slope drilling device can solve the problem that drilling operation cannot be carried out on a high and steep side slope with the height higher than 15 degrees and lower than 45 degrees through drilling equipment, is suitable for drilling operation of the mountain side slope, and improves the working efficiency of side slope drilling under the condition that construction safety is guaranteed.

The invention relates to the technical field of planet carrier drilling, in particular to a planet carrier drilling method and device for an RV reducer, and the method comprises the steps that coordinates of to-be-machined hole sites of a planet carrier are obtained, and the hole sites are divided into inner layer holes and outer layer holes; preferentially machining outer layer holes, and generating an initial machining path based on a historical database matching similar hole site layout; first hole machining is conducted according to the initial machining path; after each hole is machined, temperature data of the machined hole positions are collected through an infrared thermal imager, and a machining path is optimized through a simulated annealing algorithm; and drilling machining is conducted according to the optimized machining path sequence, and after machining of the current planet carrier is completed, the machining path and hole site layout characteristics of the planet carrier are recorded in a historical database. The invention aims to reduce the influence of heat accumulation on the planet carrier and improve the aperture precision and the surface quality.

The invention relates to the field of drilling automation, and discloses a rotary drilling pile machine drilling method and device suitable for complex stratums.The method comprises the following steps that S1, working condition feedback parameters are obtained in real time; s2, recognizing the real-time geological working condition of the drill bit; s3, optimal drilling operation parameters are determined in combination with a preset intelligent decision model; and S4, according to the optimal drilling operation parameters, an execution mechanism of the rotary drilling pile machine is automatically controlled, self-adaptive drilling is carried out, and the device comprises a data acquisition module, a working condition recognition module, a decision optimization module, a closed-loop control module and a drilling tool type selection and recommendation module. According to the method, depth data mining is carried out on key parameters such as rock-soil body specific energy, so that real-time working conditions are accurately classified into specific types such as soft clay and pebble beds, and the technical problems that in the prior art, the geological misjudgment rate is high, the recognition precision is low, and complex stratums cannot be effectively distinguished are solved.

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.

The present invention discloses a fully automatic pipe drilling platform, comprising a workbench and a drilling device. The workbench is provided with two sets of fixed-point moving devices in parallel. The first fixed-point moving device is provided with a pneumatic vise, and the pneumatic vise is provided with a pneumatic chuck along the direction of pipe movement; the pneumatic vise and the pneumatic chuck are provided with laser sensors on opposite sides; the second fixed-point moving device is provided with a secondary drilling device, and a main drilling device is provided opposite the secondary drilling device; lifting platforms are provided on both sides of the workbench, and the lifting platforms are provided with a number of V-shaped rollers for transporting pipes. The present invention can take into account the drilling spacing and angle, accurately locate the drilling position, reduce drilling errors, and at the same time adapt to the drilling requirements of pipes with different inner diameters, solving the problem of one-time automatic drilling of long-distance pipes. The present invention also discloses a drilling method for the above-mentioned fully automatic pipe drilling platform. When the relative position conditions for drilling are met, the main and secondary drilling devices work simultaneously to improve drilling efficiency.

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 present invention relates to the field of construction engineering technology, specifically to a lifting type variable diameter self-protection wall drilling bored pile drill bit and a drilling method. It comprises a main drill component, a drill bit is provided at the lower end of the main drill component, and the outer wall of the main drill component is sleeved with a wall protection outer cylinder; a lifting oil cylinder is provided on the main drill component to connect the wall protection outer cylinder; slots are distributed on the wall protection outer cylinder, and blades are provided in the slots; a pusher for controlling the opening and closing of the blades is provided on the main drill component; a knife edge is provided on one side of the blade, and a slurry outlet hole for outputting concrete slurry and a liquid outlet hole for outputting quick-setting agent are provided on the other side; a mud inlet hole is provided at the lower end of the main drill component, and a mud suction pipe is provided inside to communicate with the mud inlet hole. The present invention can realize the self-protection of cement-mixed soil, and at the same time of drilling, cement slurry and quick-setting agent can be injected into the wall protection layer to stir and quickly form a cement-mixed soil wall.

The drilling device, the power distribution cabinet drilling equipment and the drilling method are applied to the field of power distribution cabinet machining, and the drilling device comprises a trepanning mechanism and a collecting mechanism which are oppositely arranged; the trepanning mechanism is provided with a first adsorption part, and the collecting mechanism is provided with a second adsorption part matched with the first adsorption part; the distribution positions of the first adsorption pieces are arranged on one side of a to-be-perforated area of a target power distribution cabinet, and the number of the first adsorption pieces is designed to be that when the perforating mechanism and the collecting mechanism are connected to the to-be-perforated area, deformation generated by the to-be-perforated area is matched with stress of the to-be-perforated area; the second adsorption piece is arranged on the other side, corresponding to the first adsorption piece, of the to-be-perforated area. Through cooperative work of the tapping mechanism and the collecting mechanism, pollution to the internal environment of the power distribution cabinet due to chipping scattering is avoided, potential safety hazards such as electrical short circuit caused by chippings are eliminated, and the safety of installation and maintenance of the power distribution cabinet is remarkably improved.

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 invention relates to the technical field of Chinese yam planting, and discloses multi-row punching equipment for Chinese yam planting and a punching method.The multi-row punching equipment comprises a rack, a mounting frame is fixedly connected to one side of the top of the rack, a connecting plate is mounted on the outer side of the mounting frame through a lifting assembly, and two driving racks are slidably connected to the inner side of the connecting plate; a driving gear is movably connected to the inner side of the connecting plate through a bearing, a connecting sleeve is connected to the outer side of a driving rack through a connecting strip, and a spline sleeve is rotationally installed on the inner side of the connecting sleeve. By arranging the multiple spiral drill rods, multiple punching operations can be completed at a time, the punching efficiency is greatly improved, and the Chinese yam planting time and labor cost are saved. According to the equipment, the distance between the spiral drill rods can be flexibly adjusted so as to meet the planting requirements and row spacing requirements of different varieties of Chinese yams, the reasonability and scientificity of Chinese yam planting are guaranteed, better growth and development of the Chinese yams are facilitated, meanwhile, the universality of the equipment is improved, and the application range of the equipment is widened.

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 utility model relates to a plane and high steep slope drilling operation trolley which comprises a moving mechanism, a supporting frame and a drilling device, the drilling device is fixedly installed on the supporting frame, the supporting frame is movably installed on one side of the top of the moving mechanism, winches connected with steel wire ropes are installed on the two sides of the moving mechanism, and the steel wire ropes are connected with the winches. Wheels are arranged at the four ends of the moving mechanism. During slope surface operation, firstly, the trolley is controlled by the winch to be lifted to a working position, and then the conveying angle of the drilling device is determined by adjusting the angle of the supporting frame, so that the drilling device is suitable for construction operation of drilling on a plane and a high and steep slope. Compared with a traditional method for setting up a fixed drilling operation platform to conduct horizontal plane drilling, the trolley does not need to be mounted and dismounted, the trolley can be moved to the next drilling point position at any time, the scaffold mounting and dismounting time is saved, and a foundation frame body of the operation platform does not need to be treated.

The invention relates to the field of metal machining, and discloses a flange plate drilling device which comprises a base, a support is mounted at the top of the base, a drilling mechanism is mounted at the top of the support, the flange plate drilling device further comprises a lower rotating ring rotationally mounted on the lower portion of the outer surface of the base, and two first supporting cylinders are fixedly connected to the outer surface of the lower rotating ring; a first connecting column and a set of springs are movably connected into the first supporting cylinder in a sleeved mode, a first supporting sleeve is fixedly connected to one end of the first connecting column, and a first rotating shaft and a first clamping block are rotationally installed in the first supporting sleeve. According to the device, through redesign, rigid clamping in the traditional technology is changed, the fixed arc plate which can be bent and deformed and is matched with the outer diameter of the workpiece is designed to abut against the workpiece in a matched mode, the contact area of the fixed arc plate and the workpiece is remarkably increased, and therefore extrusion damage of the fixed arc plate to the local clamping part of the workpiece is reduced.

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.