3265 results about "Drill" patented technology

The invention provides a multi-parameter fusion drilling tool state intelligent diagnosis method, device and equipment, and the method comprises the steps: determining a stable working period through obtaining basic operation parameters of a drilling tool, and applying specific frequency excitation vibration to the drilling tool in the stable period to form an active propagation wave; a multi-point monitoring technology is adopted to obtain a response vibration signal and extract a time sequence, and a time sequence offset is obtained through differential processing; identifying a signal propagation delay section based on the time sequence offset, extracting actual propagation time, comparing the actual propagation time with standard propagation time to generate a time delay abnormal value, and determining an internal state change position; a high-damage section is determined by combining energy dissipation analysis, and fault positioning information is generated through spatial superposition; performing frequency sensitivity analysis by utilizing the damage characteristic parameters, capturing a resonance response peak value through frequency sweep excitation, and forming a secondary diagnosis result in combination with the wear severity; and finally, determining a fault development rate, generating a partition maintenance instruction, and completing intelligent diagnosis of the drilling tool state.

The invention relates to the technical field of optimization control, in particular to an automatic bit feeding optimization control system which comprises a bit pressure frequency extraction module, an amplification trend recognition module, a linkage signal monitoring module, a slippage reaction judgment module and a bit feeding speed adjustment module. According to the method, a frequency set is constructed through extreme value extraction, time span and amplitude difference are combined, a bit pressure fluctuation sequence is formed, resolution of dynamic characteristics is enhanced, trend sections are screened through frequency change cumulants, quantitative recognition of fluctuation trends is achieved, well bottom tracks and torque fluctuation signals are introduced, and a period direction consistency comparison mechanism is established. The signal coupling judgment precision is improved, slip judgment logic is constructed according to the amplitude growth rate and the direction consistency, risk grade classification is completed through a strain energy density index, and multi-dimensional signal linkage recognition, trend quantitative grading and energy index evaluation are achieved; and the risk identification accuracy, the response sensitivity and the control instruction adaptability under the complex drilling working condition are remarkably improved.

The utility model discloses a hydraulic rock drill which comprises a machine body composed of a machine base, a cylinder body, a middle body, a gear box, a gear box cover and a machine head which are sequentially connected, a first cavity for containing an impact piston and a second cavity for containing a bit shank are formed in the machine body, and a cooling lubricating cavity communicated with the first cavity and the second cavity is formed in the machine body. An air inlet chamber is formed in the machine base, and an air inlet communicated with the air inlet chamber is formed in the rear end of the machine base. The impact piston is provided with a central channel which is communicated with the air inlet chamber and the cooling and lubricating air chamber; an air passing channel which is communicated with a gap between the bit shank, the rotary assembly and the machine head and a gap between the bit shank and the machine head part is formed in the machine head; cooling and lubricating air introduced into the air inlet chamber enters the cooling and lubricating cavity through the center channel of the impact piston, sequentially passes through the bit shank, the gap between the rotary assembly and the machine head and the air passing channel, enters the gap between the head of the bit shank and the machine head and is blown out, and the situation that the cooling effect is poor due to the fact that air flow is poor after heat exchange is avoided.

The utility model belongs to the technical field of agriculture and forestry machinery, and particularly relates to a soil improvement device. Comprising a deep scarification gun, an air inlet pipe and a spray explosion tank, the lower end of the deep scarification gun is in interference fit with a deep scarification head, the deep scarification head is of a conical structure, an airflow channel is formed in the deep scarification gun, a spraying hole is formed in the lower end of the deep scarification gun, an air inlet is formed in the side wall of the upper end of the deep scarification gun, and the airflow channel is communicated with the spraying hole and the air inlet; the air inlet pipe comprises a hose and a metal pipe, one end of the hose is communicated with the metal pipe, the metal pipe is in interference fit with the air inlet, and the other end of the hose is communicated with the air outlet of the spray explosion tank. According to the scheme, through the integrated modeling design of the deep scarification gun, the drill rod, the deep applying rod and the deep applying head are connected instead of threads or bolts, unnecessary connecting structures on parts are reduced, meanwhile, connecting pieces are reduced, the mechanical property of the deep scarification gun is optimized, the durability of the parts is improved, and the service life of the deep scarification gun is remarkably prolonged.

The utility model relates to the technical field of ship mechanical part machining, in particular to a polishing device for ship mechanical part machining, and solves the problem that in the prior art, ship mechanical parts of different shapes and sizes cannot be conveniently adjusted and fixed, so that the polishing effect is poor. A polishing device for ship mechanical part machining comprises a machining table and a polishing machine, the machining table is provided with a sliding groove, the interior of the sliding groove is slidably connected with a mounting block, the top of the mounting block is provided with a bearing plate through a buffering mechanism, the surface of the bearing plate is fixedly connected with four supporting blocks, and the surfaces of the supporting blocks are in threaded connection with screws; a clamping drill is fixedly connected to the surface of the screw rod, a plurality of limiting grooves are formed in the surface of the bearing plate, and limiting rods are arranged in the limiting grooves in a penetrating mode. According to the polishing fixture, clamping and fixing of parts with different shapes and sizes are guaranteed, so that the parts can be normally polished, and the polishing effect of the parts cannot be affected.

The utility model discloses a plastic card automatic installation executing mechanism, an installation device and an installation system, and belongs to the technical field of aerated concrete plate production. The actuating mechanism comprises a base and a sliding plate arranged on the base in a sliding manner, wherein the sliding plate is connected with a first chuck and a second chuck; wherein a clamping space for a plastic card to be clamped in is formed between the first clamping head and the second clamping head, and the two clamping heads can be relatively close to or far away from each other and are used for clamping and loosening the plastic card; the sliding plate is connected with a driving source and used for driving the first chuck and the second chuck to move synchronously. According to the utility model, the plastic card can be clamped by utilizing the clamping space formed between the two clamping plates; then the two chucks move synchronously and keep clamping action on the plastic card, and then the plastic card is clamped on the steel chisel through the bayonet on the plastic card, so that automatic assembly between the plastic card and the steel chisel can be completed, and the assembly efficiency and the assembly precision are improved.

The application discloses a kind of electric saw drill bone power system mechanical performance parameter semi-automatic measuring device, including installation in the sliding platform I of support table, fixed in the travelling fixture of sliding platform I, array installation on the several mainframes of travelling fixture, to be measured swing saw head and to be measured drill, fixed in portal frame and with the sliding platform II of movement direction vertical of sliding platform I, tension-gap measurement module, rotational speed-shaft runout-torque measurement module and swing angle measurement module are successively and parallel fixed on sliding platform II, and pneumatic system, control module, data acquisition and storage module.The application is installed on travelling fixture by simple artificial feeding and discharging to realize automatic transport, and the automation of tension-gap measurement, rotational speed-shaft runout-torque measurement and swing angle measurement etc. process is realized in combination with sliding platform II, with the advantages of simple structure, accurate measurement and high efficiency, and measurement data can realize storage and traceability.

An intelligent electric drill includes a case which has an MCU control unit, a drive unit, a power unit, and a data unit. The MCU control unit controls the power, speed, and torque of the drive unit. A mechanical speed mode recognition module group is electrically connected to the MCU control unit and includes a speed mode recognition electronic module and a plastic speed mode module within the case. The mechanical speed mode recognition module group determines the switching position of the plastic speed mode module, and the speed mode recognition electronic module inputs the determined signal to the MCU control unit. This allows users to automatically recognize the positions of mechanical speed mode and function mode while driving with the electric drill. Users can drive with accurate and appropriate power, achieving precise output of speed, torque, and workload.

The invention discloses a half coal rock digging and anchoring all-in-one machine, and relates to the technical field of mining devices, the half coal rock digging and anchoring all-in-one machine comprises a pair of rear drill arm parts arranged on a machine body part, and each rear drill arm part comprises a swing oil cylinder III and a rear onboard jumbolter; a recoil force grading detection mechanism is arranged between the swing oil cylinder III and the rear onboard jumbolter; the recoil force grading detection mechanism comprises a recoil force sensor, a first microswitch, a buffer mechanism and a connecting mechanism. By arranging the recoil force grading detection mechanism, recoil force is transmitted to the mounting plate during working, the mounting plate drives the swing oil cylinder plate to act through the connecting mechanism, the connecting plate of the buffer mechanism triggers a first microswitch firstly and then abuts against a recoil force sensor, and grading detection of the recoil force is achieved; the mechanism solves the problem that the angle deflection of the rear onboard jumbolter is caused by the recoil force but is lack of effective grading detection, avoids the risk of compensation failure caused by the fault of a single detection element, and improves the detection reliability of the recoil force.

The application provides a tunnel blasting scheme intelligent design method, and relates to the technical field of tunnel engineering. The application obtains blasting design parameters based on a tunnel engineering geological exploration report and a forepoling geological prediction; obtains a drill-and-blast method tunnel blasting scheme 01 based on the blasting design parameters (4) by using a tunnel engineering blasting theory and a computer deep learning technology; establishes an existing drill-and-blast method tunnel blasting scheme sample library of built or under-construction tunnels based on the blasting design parameters (10) by using the computer deep learning technology, and obtains a to-be-built drill-and-blast method tunnel blasting scheme 02 by inputting the blasting design parameters and tunnel engineering requirements; and obtains a final drill-and-blast method tunnel blasting scheme according to the economic, efficient, safe and simple principle by using an artificial selection method based on the obtained drill-and-blast method tunnel blasting scheme group. The method avoids the influence of subjective factors, combines a traditional experience design method, big data processing and artificial intelligence technology, and provides an efficient scheme for design and construction personnel.

The invention discloses a reamer electromechanical driving mechanism and method capable of detecting the position state of a blade, and relates to the technical field of tools of petroleum drilling engineering, the reamer electromechanical driving mechanism comprises a power assembly, a lead screw assembly, an ejector rod, a locking assembly, a rotation detector and a displacement detector which are mounted in a drill collar; the power assembly is connected with the lead screw assembly, the lead screw assembly is connected with the ejector rod, the ejector rod is connected with the reamer blade, the power assembly rotates and drives the ejector rod to move up and down through the lead screw assembly, and the ejector rod moves up and down to drive the reamer blade to be unfolded or folded. The locking assembly is assembled on the ejector rod, and after the reamer blade is unfolded in place, mechanical self-locking is conducted on the ejector rod. The rotation detector is assembled beside the lead screw assembly to detect rotation of the lead screw assembly, and the displacement detector is assembled beside the ejector rod to detect up-and-down movement of the ejector rod. The opening and closing state of the cutter wing is measured and uploaded through the rotating detector and the displacement detector, the cutter wing is expanded in place, the underground condition can be judged easily, and controllable multiple reaming is achieved.

The application relates to the technical field of well drilling, and is a motor control type variable-diameter stabilizer, which comprises a variable-diameter mechanism, a pressure driving mechanism, a non-magnetic drill collar, a control outer shell and a variable-diameter joint which are sequentially and threadedly connected together from top to bottom, the variable-diameter mechanism comprises a righting block which is slidingly installed in an installation sliding groove, the variable-diameter joint is provided with a limiting ring, a reset spring is arranged between the installation sliding block and the limiting ring, the variable-diameter joint is provided with a plurality of sinking grooves, a piston is arranged in each sinking groove, the variable-diameter joint is provided with a liquid storage channel, a communication hole which is in communication with the liquid storage channel is arranged on the inner side wall of each sinking groove, the control outer shell is internally provided with the pressure driving mechanism, the non-magnetic drill collar is internally provided with a control system, and the pressure driving mechanism is electrically connected with the control system. The application has the advantages of reasonable and compact structure, convenient use, safety, labor saving and high efficiency, and the righting block is controlled by forming a pressure difference at the variable-diameter joint and extending.

Computer implemented methods and systems for testing one or more operational changes in a drill rig includes initiating the one or more operational changes and using, in part, image data of a mechanical mud separation machines (“MMSM”) to detect the impact of the one or more changes. The image data may be processed by a Deep Neural Network to identify objects in the object flow, operational parameters of the MMSM, and wellbore environmental conditions. Additional image data may be selected for additional processing based on the results of the analysis. The results of the test may be used to update the drilling operation or a drilling model.

The invention discloses jaw crushing equipment for refractory material raw material processing, which belongs to the field of jaw crushers, and is characterized in that an upper crankshaft, a lower crankshaft, a reinforcing piston and an impact part are arranged on a fixed jaw plate mechanism by simulating the principle of an impact drill, so that the upper crankshaft and the lower crankshaft can be driven to rotate when a belt pulley I rotates; the reinforcing piston is promoted to reciprocate in the piston stroke channel, the impact pile section of the impact piece at the corresponding position in the piston stroke channel is continuously impacted in a reciprocating mode, the impact piece is driven to continuously reciprocate on the fixed jaw plate body, and finally the end of the impact rod continuously impacts the interior of a crushing cavity of the jaw crusher box body; and materials in the middle section position in the crushing cavity are impacted, and the crushing efficiency of the materials is improved.

The invention relates to the technical field of tunnel engineering disease treatment, in particular to a construction method of a drainage system for karst tunnel inverted arch upheaval disease treatment, which comprises the following construction steps: S1, arranging settlement monitoring points in a disease section tunnel, and arranging a reinforcing structure in a lining arch foot area; and S2, the existing disease inverted arch is broken and removed section by section according to the preset length, and temporary supporting is carried out in time. And S3, an overhaul window is dug in the lining through a water mill drill, and a supporting structure is synchronously installed. And S4, a foundation trench is excavated in the bottom of the inverted arch, a concrete strip-shaped foundation is poured to serve as a foundation of the steel corrugated pipe arch culvert, the steel corrugated pipe arch culvert is installed, the axis of the steel corrugated pipe arch culvert is consistent with the karst cave water flow direction, and the steel corrugated pipe arch culvert is in sealed butt joint with the confluence overhaul groove. And S5, a drainage pipe is pre-buried in the inverted arch reconstruction section, the confluence overhaul groove and the central drainage ditch are connected, and finally concrete is poured to seal the inverted arch structure. The method effectively solves the problem of upheaval of the inverted arch caused by water burst of the deeply-buried karst cave, reduces the damage of the lining structure, and improves the long-term stability of the tunnel.

The invention discloses a multifunctional all-in-one unit for drilling and blasting method construction and a construction technology, and relates to the technical field of tunnel construction, the multifunctional all-in-one unit comprises a rack assembly, a left drilling arch arm frame, a left drilling arm frame, a vertical arch arm frame, a right drilling arm frame, a right drilling arch arm frame, a guniting arm frame, a pumping system, a hydraulic system and an electrical system; a vertical arch module of the left drilling arch arm frame, a vertical arch module of the vertical arch arm frame and a vertical arch of the right drilling arch arm frame snatch a left arch frame, a middle arch frame and a right arch frame to carry out arch erecting and mesh welding operation; a charging hanging basket is arranged at the front end of the rack assembly; the rock drilling modules of the left drilling arch arm frame and the right drilling arch arm frame work independently or cooperatively in cooperation with the left drilling arm frame and the right drilling arm frame and are used for drilling anchor rod holes and blast holes. According to the invention, multiple functions such as drilling of blast holes, charging of a hanging basket, blasting, erecting of meshes, anchor rod operation, guniting and the like can be integrated, parallel working procedures or seamless connection of the working procedures can be realized, and the construction progress can be greatly improved.

The invention relates to the technical field of intelligent manufacturing equipment, in particular to a turning machine tool and a turning method of a hydraulic motor output shaft. The turning machine tool comprises a rack, a drill chuck assembly used for clamping and fixing a workpiece is rotationally installed on the rack, and the drill chuck assembly is driven by a driving device arranged on the rack to rotate; a tailstock is fixed to the machine frame, and an ejector pin which can linearly move, can rotate and is used for abutting against and limiting the end of a workpiece is installed on the tailstock. A tool rest bottom plate capable of linearly moving in the axial direction of a workpiece is arranged on the rack, a rotary cutter head is arranged above the tool rest bottom plate, and a tool turret is arranged above the rotary cutter head; a plurality of turning tools with the machining precision gradually increased are sequentially and fixedly clamped on the tool turret in the circumferential direction at equal angles. The turning method is efficient, precise and high in automation degree. And the bottleneck problems of low efficiency, poor precision stability, dependence on skilled workers and the like of multi-precision shaft parts such as output shafts of hydraulic motors in the traditional turning process are effectively solved.

The invention discloses an electronic scale base PCB assembling device and method, and relates to the technical field of assembling device.The electronic scale base PCB assembling device comprises a workbench, two first conveying frames are symmetrically fixed to the upper end face of the workbench, a conveying belt is rotationally arranged between the two first conveying frames, and positioning assemblies are arranged on the two first conveying frames; two second conveying frames are symmetrically fixed to the upper end face of the workbench, a conveying assembly is arranged on the two second conveying frames, a material taking assembly used in cooperation with the conveying assembly is arranged on the workbench, a robot arm is arranged on the workbench, a vertical lifting guide rail is fixed to the tail end of the robot arm, and a lifting base is movably arranged on the vertical lifting guide rail. An electric drill is fixed to the lower end of the lifting base. A screw feeder is arranged on the workbench. In the use process, manual assembly processing of the PCB body and the electronic scale base body is not needed, the operation is labor-saving, and the electronic scale base is convenient to use.

The invention relates to a virtual simulation emergency drilling method and system under a mine fire dynamic catastrophe condition based on deep reinforcement learning, and belongs to the field of mine safety management. According to the method, a mine comprehensive database is constructed, environment, equipment, fire source and ventilation system data of a mine are collected, a mine structure model is generated by using a three-dimensional modeling technology, and a mine fire spreading process is simulated in real time through fire dynamics simulation, deep reinforcement learning optimization and a virtual reality technology. The drill personnel enter the fire disaster simulation environment through the virtual reality equipment to carry out emergency operation, and the system carries out real-time feedback according to the operation of the drill personnel and optimizes the fire disaster spreading simulation model. Parameters such as wind speed and wind quantity of the ventilation system and fire spreading are subjected to coupling calculation, so that the accuracy and dynamic response of fire simulation are ensured. According to the system, through cooperative work of a plurality of modules, intelligence, individuation and high efficiency of mine fire emergency drilling are realized, and the emergency response capability of drilling personnel is effectively improved.

The utility model discloses a rhinestone sorting device which comprises a horizontal linear module, a vertical linear module, a vertical linear module, a plurality of vertical linear modules and a plurality of vertical linear modules, wherein a connecting plate is arranged at the bottom of a sliding block of the horizontal linear module; the plurality of vacuum rocking drilling machines are positioned below the horizontal linear module and are arranged along the length direction of the horizontal linear module; the detection mechanism is connected with the sliding block of the horizontal linear module through the connecting plate and is used for shooting and detecting the rhinestone; the sorting mechanism is connected with the sliding block of the horizontal linear module through the connecting plate and is used for sorting rhinestones; according to the utility model, the horizontal linear module is arranged above the vacuum rocking drilling machine, and the horizontal linear module drives the detection mechanism and the sorting mechanism to pass above the vacuum rocking drilling machine, so that the rhinestones are detected and sorted, manual participation is not needed, the labor cost is effectively saved, and the sorting efficiency is improved.

The invention discloses an electric drill motor overload protection device, and relates to the technical field of circuit overload protection, the electric drill motor overload protection device comprises an electric drill main body, the side part of the electric drill main body is provided with a driving module, the electric drill main body is internally provided with an overload assembly, the overload assembly comprises a hard through pipe and an elastic through pipe, and the hard through pipe and the elastic through pipe are internally provided with connecting wires in a penetrating manner; composite connecting pieces are assembled outside the sides, close to each other, of the two connecting rods; the whole composite connecting piece is of a double-layer structure, the inner layer is an electrified contact head used for achieving circuit conduction, the outer layer is an adsorption magnetic ring playing a role in adsorption and fixation, thermal expansion of the heat sensitive piece is a continuous process, but the action of triggering the upper inclined plate to move to disconnect the circuit is completed instantly, and therefore the heat sensitive piece is not damaged. The delayed process of temperature accumulation is converted into the instant action of mechanical triggering, so that the response of the protection device is quicker and more reliable, timely intervention can be performed when the temperature of the motor just exceeds the safety range, and the operation time of the motor at the dangerous temperature is effectively shortened.

The invention belongs to the technical field of coal bunker dredging, and particularly relates to a coal bunker hydraulic drilling rig dredging device which comprises a pipe barrel frame, fixing blocks, a flow dividing barrel, a slope falling type material guiding mechanism and a hydraulic drilling type material passing mechanism, the fixing blocks are arranged on the inner wall of the pipe barrel frame, the flow dividing barrel is arranged between the fixing blocks, the slope falling type material guiding mechanism is arranged on the fixing blocks, and the hydraulic drilling type material passing mechanism is arranged on the pipe barrel frame. The hydraulic drill type material passing mechanism is arranged on the slope falling type material guiding mechanism, and the slope falling type material guiding mechanism comprises a material falling assembly, a lifting assembly and a buffering assembly. According to the dredging device for the coal bunker hydraulic drilling rig, coal falling into the coal bunker can be buffered, generation of pulverized coal is reduced, and the blockage phenomenon occurring in the discharging channel can be monitored.

The invention discloses a metal material high-precision cutting system, which belongs to the technical field of metal processing, and comprises a platform body provided with a carrying guide rail and a cutting guide rail, the carrying guide rail is provided with a jig assembly, and the cutting guide rail is provided with a double-shaft walking mechanism of which the end part is provided with an actuator; a pecking drill cutting assembly integrated with an air blade chip removal assembly is arranged on the side face of the actuator. By arranging the pecking drilling cutting assembly, the voice coil motor drives the saw blade to achieve high-frequency micro-amplitude reciprocating motion, pecking drilling type cutting is formed, cutting resistance and thermal stress are effectively reduced, and casting microcracks and saw blade tooth breakage are avoided; a monitoring piston can provide buffering and vibration reduction, resistance is fed back in real time through an air pressure sensor so as to dynamically adjust a double-shaft walking mechanism, a protective cover and an air blade chip removal assembly cooperate, a front nozzle removes surface impurities and cuttings in a kerf, a rear nozzle conducts sweeping and cleaning, and it is ensured that the kerf is clean and effectively cooled.

The invention discloses a self-adaptive control method and system for a mining drilling machine. The method comprises the steps that state parameter data in the drilling process of the drilling machine are collected in real time through a multi-source sensor; quickly matching the acquired data with a pre-constructed dynamic database, generating an initial control parameter, and inputting the initial control parameter into an optimization model to generate a self-adaptive control strategy; performing closed-loop control on a drilling machine executing mechanism according to the self-adaptive control strategy; and monitoring and evaluating the drilling performance index of the drilling machine in real time, and feeding back an evaluation result to the optimization model to realize online iterative optimization. Through three technical means of dynamic database construction, layered double closed-loop control and multi-parameter coupling optimization, adaptive sensing, intelligent decision making and accurate execution of the drilling machine under complex geological conditions are realized, the drilling efficiency is remarkably improved, the energy consumption is reduced, the operation safety is enhanced, and the engineering application value is extremely high.

The present application discloses a fault drill method and apparatus, the method comprising: obtaining a set of fault drill pipelines determined based on a container management platform; determining the fault drill execution state type of the current fault drill pipeline in the system to be drilled in the fault drill pipeline set; and determining, based on the fault drill execution state type, the time when the current fault drill pipeline will next perform a fault drill on the system to be drilled; thereby making the fault drill process more resource-efficient and the drill deployment more flexible, and not being restricted by the platform on which the fault drill depends, avoiding self-dependence problems.

The invention discloses an analysis control method and system for a hydraulic anchor rod drill carriage for a coal mine, and relates to the technical field of mining mechanical equipment, and the method comprises the steps: constructing a sequential temperature sequence, calculating an actual temperature stability characteristic value, and evaluating the stability of the current temperature fluctuation of the drill carriage; constructing a differential pressure sequence, calculating an actual pressure change rate characteristic value, and identifying whether potential abnormality exists in the hydraulic pressure of the drill carriage; the actual temperature stability characteristic value and the actual pressure change rate characteristic value are constructed into an actual drill carriage state characteristic vector, the actual drill carriage state characteristic vector is input into an operation recognition function, a drill carriage operation normal score is obtained, and drill carriage operation evaluation is carried out; and operation parameters of the drill carriage are dynamically regulated. Parameters of a hydraulic system of the drill carriage are regulated by calculating an actual temperature stability characteristic value, calculating an actual pressure change rate characteristic value, constructing an operation recognition function and dynamically regulating and controlling operation parameters of the drill carriage, and therefore it is guaranteed that the operation parameters of the drill carriage can be matched with the hardness of materials at the operation position.

The utility model provides an induced tooth machining, clamping and positioning tool which is characterized in that when induced tooth machining is carried out, a four-jaw chuck of a lathe is used for firmly clamping and aligning a flange plate, the bottom surface of an induced tooth product subjected to a cutting process is flatly placed on a base plate, and two circular arc parts of the induced tooth product abut against two positioning pins; a compression nut at the upper end of the pressing plate is screwed down, and the induced tooth product is limited to move in the radial direction of the tool; the adjusting tip is adjusted to be capable of abutting against the tail end of the induced tooth product, and the induced tooth product is limited to move in the axial direction of the tool; during machining, a hard alloy down-the-hole drill is selected, a threaded bottom hole and a chamfer are machined on an induced tooth product, an internal thread turning tool is used for machining internal threads, and cooling liquid is used for cooling and lubricating the tool and the induced tooth product in the whole machining process. The three-time clamping mode of a drill jig is replaced by one-time clamping, and three working procedures of thread bottom hole machining, chamfering and thread machining are completed through one-time clamping turning.

The invention relates to the field of road repair, in particular to a hydraulic forcible entry device and a using method. According to the hydraulic forcible entry device, when the inspection well cover needs to be forcible entry, well cover cutting equipment and milling equipment are used for cutting and milling the periphery of the inspection well cover, so that only the bottom of the inspection well cover is connected with a shaft through a well ring; the whole hydraulic forcible entry device is lowered till the drill rod reaches the connecting face of the well ring and the shaft, and the oil cylinder keeps retracting in the lowering process; the oil cylinder extends out, the guide rod is driven to slide along the guide sleeve so as to drive the drill rod to extend outwards through the connecting rod, and an impact head slope at the outer end of the drill rod lifts the walling crib upwards so that the walling crib can be separated from the shaft; after separation, the inspection well cover and the well ring can be lifted away from the whole hydraulic forcible entry device. According to the hydraulic forcible entry device, manual forcible entry work after operation of a cutting machine is omitted, the labor intensity is reduced, the labor amount is reduced, the operation efficiency is improved, and the number of constructors needed for forcible entry is reduced.

A quick attach pop riveting device is disclosed, which is an attachment for a screw gun that allows people to use a screw gun as a riveting gun. The quick attach pop riveting device comprises a riveting gun attachment with a non-spinning body component. The non-spinning body component is secured to and around a screw gun or power drill. The riveting gun attachment and the non-spinning body component both include access points for removal and attachment of the components, as needed. The device is easily operated with the attachment and does not spin on the screw gun / power drill and enables users to work without holding the rivets by hand.

The application discloses a drilling tool with concave-convex matching on the side, which comprises a cutting part and a clamping part. The cutting part comprises an end cutting area, a bottom locating surface and a cutting side surface between the end cutting area and the bottom locating surface. The cutting side surface is provided with a plurality of side cutting areas and a plurality of side locating surfaces. The end cutting area and the side cutting area form a cutting area of the cutting part. The side locating surface is provided with an inner mounting hole. The clamping part comprises a clamping groove part and a handle part. The clamping groove part is provided with a bottom clamping surface and a side clamping surface corresponding to the bottom locating surface and the side locating surface respectively. At least one side locating surface is provided with a side locating convex part. The side clamping surface corresponding to the side locating surface is provided with a side clamping concave part. The side locating convex part and the side clamping concave part form a concave-convex matching to determine the mounting direction of the cutting part and realize the circumferential clamping and positioning of the cutting part, so as to transmit the cutting torque and the cutting force between the cutting part and the clamping part in the cutting process. The cutting tool has high rigidity, excellent anti-vibration performance, high positioning accuracy and long service life.