2031 results about "Deep hole" patented technology

The invention discloses an inner wall grinding device for deep-hole precision parts, and particularly relates to the technical field of pipeline grinding, the inner wall grinding device comprises a grinding box, a grinding mechanism is mounted on one side of a driving assembly, a centering assembly is mounted on the other side of an inner cavity of the grinding box, and a rotating mechanism for driving a round pipe part to rotate is mounted on the rear portion of the centering assembly; and a cooling mechanism for spraying the round pipe part is installed on the right side of the bottom of the grinding box, and two supporting assemblies for supporting the round pipe part are installed on the right side of the bottom of the grinding box. According to the inner wall grinding device for the deep-hole precise part, in the process that a round pipe part is ground from right to left through the arranged grinding mechanism, the internal structure of the grinding mechanism moves under the effect of grinding the round pipe part, and chippings and cutting fluid contained in an inner cavity of the round pipe part can be synchronously scraped outwards; the problem of secondary scratching caused by scrap accumulation in deep hole machining is solved, and meanwhile the workload of the follow-up cleaning procedure is reduced.

The invention belongs to the technical field of automobile part machining, and particularly relates to a double-shaft numerical control deep hole drilling machine for automobile part machining, which comprises a base, two groups of movable frames are arranged above the base, machining shafts for performing deep hole drilling on a long shaft are arranged on one sides of the movable frames, and the two groups of machining shafts rotate in opposite directions; a fixing support is fixedly connected to the upper portion of the base, a clamping assembly for clamping and limiting a long shaft is arranged below the fixing support, the long shaft is positioned and clamped through movement of a plurality of sets of telescopic clamping rods, deep hole machining can be conducted on the shaft through a drill rod installed on a machining shaft, and in addition, the machining efficiency is improved. And through the arrangement of the auxiliary assembly, the axial extrusion force generated during drilling machining of the long shaft can be reduced to a certain extent, the situation that the long shaft is bent and even broken in the machining process is avoided, and the stability of double-shaft deep hole machining of the long shaft can be effectively improved.

The invention belongs to the technical field of coal seam pressure relief and permeability improvement, and relates to a core rod jacking type mechanical reaming device and method, and the device comprises a core rod jacking type reamer, a core rod drill rod, a combined type rotary water tail and a hydraulic propeller which are sequentially connected from head to tail. The core rod jacking type reamer adopts a core rod pushing linkage structure, and the opening or closing state of a tool arm is accurately controlled; the core rod drill rod provides core rod guiding conduction, and deep hole reaming is achieved. The composite rotary water tail is used for rotary dynamic sealing connection of the drill rod core rod and the hydraulic propeller; the hydraulic propeller is used for being connected with hydraulic power and providing hydraulic propelling power for the guide rod. According to the device, hydraulic pressure serves as power to achieve rapid unfolding and retracting of the reaming cutter, the reaming speed is increased, the gas extraction drilling and reaming requirements are met, stable operation can be achieved under the complex geological condition, and the high field popularization value is achieved.

The invention discloses comprehensive rock drift rapid tunneling equipment and a using method thereof.According to the tunneling equipment, a drilling and anchoring integrated multifunctional drilling machine is arranged on one side of a cantilever type tunneling machine body, and a temporary supporting mechanism is arranged above an oscillation cutting part; a deep hole is formed in a to-be-crushed rock by utilizing the multifunctional drilling machine, the deep hole is further expanded and cracked by utilizing the pulsating fracturing system, the strength of a rock mass is weakened, then the rock mass is milled by adopting the oscillating cutting part, and finally, the rock mass is anchored and protected by utilizing the multifunctional drilling machine and the temporary supporting device, so that a guarantee is provided for an operation environment. According to the equipment and the technology, a traditional roadway tunneling procedure is simplified into a continuous procedure, the tunneling efficiency of roadway rock mass is greatly improved, and meanwhile the cost is saved.

The invention relates to the technical field of part machining, and discloses a drilling and milling machine tool for precise metal part machining, which comprises a main body, the top of the main body is fixedly connected with a control panel, and the drilling and milling machine tool further comprises an adjusting mechanism, and the adjusting mechanism is arranged on the side wall of the control panel and is used for bearing a workpiece. The square plate drives a workpiece to move downwards and reset during machining, so that the situation that when the drill shaft drills a hole to a large depth, due to continuous contact between a drill bit on the drill shaft and the wall of the deep hole and overlarge shearing force on the side wall of the deep hole during cutting, the drill bit is broken or damaged can be reduced; the horn-shaped cylinder is opened to be matched with the square plate to drive the workpiece to move up and down, so that the continuous shearing process can be interrupted, the shearing stress is dispersed, the tipping condition is reduced, and the subsequent machining efficiency is improved.

The invention relates to the technical field of deep hole machining, and provides a multi-axis linkage machining system for drilling and milling the inner wall of a deep hole, which adopts a linear motion device to directly drive a cutter support module, omits a lead screw and other intermediate transmission links, shortens the non-cutting time, has high positioning precision, can improve the machining efficiency, and has lower operation noise and vibration. The processing environment can be improved; according to the workpiece clamping device, a second hollow rotating platform is connected with a chuck, the chuck clamps the workpiece, through program control, the second hollow rotating platform can drive the workpiece on the chuck to rotate and position at any angle, and the requirement for machining the workpiece by a drilling and milling cutter module is met; the problems of time waste, positioning errors and the like caused by secondary clamping are avoided, and the workpiece machining efficiency is improved; a tool bit of the drilling tool module is fed by adopting a variable-diameter structure (a tool bit feeding assembly), and drilling and milling can be carried out on the inner walls of deep hole type workpieces with complex inner hole shapes such as bottleneck holes and stepped holes.

The invention discloses a double-row medium-length hole blasting method for a filling stope. According to the method, a theoretical value range of each blasting parameter is deduced according to field engineering practice, an ore rock blasting crushing mechanism and a blasting parameter theoretical formula. The method comprises the following steps of: constructing a stope blasting model with different hole bottom distances, explosive unit consumption and resistance line combinations by using ANSYS numerical simulation software in combination with physical and mechanical properties of ore rocks and field explosive performance parameters, and preferably selecting double-row medium-length hole blasting parameters according to a chamber effective stress distribution rule and a roof area vibration velocity peak value of the ANSYS blasting model. According to the method, by selecting the double-row optimal medium-length hole blasting parameters, it is guaranteed that ore rocks in the chamber are fully crushed, the effective stress invading the roof and the blasting vibration velocity peak value are reduced, and the roof is prevented from being damaged. And meanwhile, the explosive loading amount is reduced, the economic cost is reduced, and the production efficiency of a mine is improved.

The invention provides a broken thick and large ore body combined mining method based on medium-length hole blasting and drift type cooperation, and belongs to the field of ore body mining. Firstly, an ore body is segmented and partitioned, blocks are formed in a three-dimensional space, then the blocks are alternately operated through sequential control, meanwhile, the positions of a pre-splitting area and a recovery area are limited in the space, and the positions of the pre-splitting area and the recovery area are determined; and safe and efficient mining of the broken thick and large ore body is realized in cooperation with a medium-length hole subsection presplitting blasting and drift stoping process. According to the method, on the basis that the broken thick and large ore body is segmented and partitioned, and time sequence and space regulation and control are conducted on operation of the blocks, medium-length hole blasting is used for presplitting the ore body, controllable caving lumpiness is formed, direct disturbance to a recovery area is reduced, caved ore is efficiently recovered by adopting access road type mechanical equipment, and the recovery efficiency is improved. The large-scale caving advantage of the medium-length hole sublevel mining method is exerted, safe and efficient recovery of the broken ore body is guaranteed through drift type mining, and remarkable technical breakthrough is achieved.

The invention relates to the technical field of drill rod vibration reduction, in particular to a drill rod vibration reduction device based on a bent beam semi-active nonlinear energy trap. The drill rod damping device based on the semi-active NES is suitable for deep hole machining and good in damping efficiency and comprises a connecting base, a mounting plate and NES components, and each NES component comprises a U-shaped auxiliary beam, an elastic main beam, a flexible hinge and a PID controller. Each U-shaped auxiliary beam is clamped in the corresponding annular groove, one end of each elastic main beam is fixed to the middle of a middle beam of the corresponding U-shaped auxiliary beam, the other end of each elastic main beam is fixed to the middle of the other side face of the flexible frame in the width direction, each U-shaped auxiliary beam is provided with a strain gauge, and the input end of the PID controller receives the multiple strain gauges. And the output end of the PID controller controls the plurality of piezoelectric ceramic stacks. The device is obvious in vibration suppression effect and suitable for drilling machining.

The invention discloses an earth surface directional drilling high-pressure deep hole grouting construction method based on steel sleeve hole fixing. The earth surface directional drilling high-pressure deep hole grouting construction method comprises the following steps that firstly, a directional drilling machine is used for vertically drilling a grouting hole downwards; secondly, a plurality of steel floral tubes are sequentially put down in the three-opening first branch grouting hole; thirdly, cement-bentonite-based sleeve shell materials are continuously injected into the first section of the steel floral tube to the inner bottom of a first branch grouting hole of the three-opening hole, and an annular space between the first branch grouting hole of the three-opening hole and the steel floral tube string is filled with the cement-bentonite-based sleeve shell materials; fourthly, a packer is lowered to the bottom of the three-opening first branch grouting hole; a packing section is formed in front of the packer; and fifthly, cement grout is injected into the grouting pipe, grouting is conducted on the packing section, the finally-set cement-bentonite-based casing material is split and damaged under the effect of grouting pressure, and the grouting grout is injected into the stratum to be reinforced through the grout channel. According to the method, the hole collapse phenomenon when the grouting hole penetrates through the unfavorable geological section can be prevented, the grouting stopping effect of the packer is guaranteed, and retreating type segmented grouting construction is guaranteed.

The embodiment of the utility model discloses a deep hole machining combined tool in the technical field of hole machining drilling tools. When a deep hole is machined, the distance between the milling cutter blade and the chamfering cutter blade is adjusted according to the depth of the hole needing to be machined, the position of the chamfering cutter limiting block can be directly adjusted through the arrangement of the scale marks, a measuring tape does not need to be additionally used for measurement, and firstly, the milling cutter blade is fixed to a groove cavity of a first clamping groove through cooperation of a first bolt and a first threaded hole; then a second bolt is matched with a third threaded hole to fix a chamfering blade in a groove cavity of a second clamping groove, then a positioning sliding block is placed in a groove cavity of a first chip removal groove, and after size adjustment is completed, the third bolt is placed in a hole cavity of a first limiting hole and a hole cavity of a second limiting hole, so that the third bolt is screwed into a hole cavity of the second threaded hole; and the position of the positioning sliding block is fixed, so that the chamfer is machined while the deep hole is machined.

The invention discloses a deep hole turning numerical control machine tool machining clamp, and relates to the technical field of clamps, the deep hole turning numerical control machine tool machining clamp comprises a mounting seat and a flange mounted on the rear side of the mounting seat, a groove is formed in the front side of the mounting seat, a rotating seat is mounted in the groove, and rotating shafts are connected to the centers of the upper surface and the lower surface of the rotating seat; first bearings are connected between the two rotating shafts and the mounting base, mounting grooves are formed in the centers of the side walls of the periphery of the rotating base, and chuck bodies are mounted in the four mounting grooves. By arranging the four chuck bodies, the rotating seat can clamp special-shaped parts, round parts, square parts and thin-wall parts, and the universality of the machining clamp is achieved; by arranging the mounting base, the rotating shaft and the rotating base, the rotating base rotates to switch different chuck bodies to clamp different types of workpieces, the chuck does not need to be detached for replacement, and the time interval for switching the different types of workpieces for machining is greatly shortened.

The medium-length hole mining method under the complex geological condition comprises the following steps that S1, a stope is divided, specifically, the stope is divided into two stages along the inclination direction of an ore body, and bottom columns are not reserved; s2) roadway construction; s3) stoping: taking the cutting raise and the transverse cutting roadway as double free surfaces, and constructing medium-length hole blasting in a retreating manner from the middle to the two ends; s4) drilling and blasting; s5) transporting the ores; and S6) ventilation and dust prevention. The method is suitable for mining inclined ore bodies with thick ore bodies, unstable IV-level surrounding rock stability, extremely unstable V-level local parts and inclination angles of 30-50 degrees. By means of the non-sill-pillar structure and the 25-m stage interval and the through ore removal access road of the outside-vein transportation roadway, 15%-20% of sill pillar resource loss in a traditional method can be eliminated, the ore recovery rate is greatly improved, dead ore resources in a mining area are activated, and the service life of a mine is prolonged.

The invention belongs to the technical field of mining engineering, and particularly relates to a composite roof gob-side entry retaining roof cutting pressure relief deep hole presplitting blasting method which comprises the steps that geological data are obtained, a discrete element method is combined, a composite roof-roadway space three-dimensional mechanical model is constructed, and the roof fracture and collapse process under different blasting parameters is simulated; a whale optimization algorithm and a BP neural network are fused on the basis of roof fracture and collapse processes under different blasting parameters, and a target blasting parameter combination is dynamically output; the method comprises the following steps: monitoring roof microcrack propagation and stress change data in real time, adjusting blast hole arrangement and a charging structure in combination with a target blasting parameter combination, automatically installing a blasting material and an axial air spacer by adopting an intelligent charging robot based on the adjusted blast hole arrangement and charging structure, and accurately controlling blasting through a high-precision electronic detonator. And an ordered pressure relief process is formed according to the detonation time difference. Therefore, the problems that in the prior art, the parameter adjusting range is narrow, blasting stress distribution is uneven, and construction stability is poor are solved.

The utility model discloses hollow half shaft forming equipment, which belongs to the field of manufacturing of automobile parts and comprises a graded reducing device, a hollow half shaft forming device and a hollow half shaft forming device. The spline cold extrusion device is used for extruding an internal spline on the hollow half shaft blank; the grading hole shrinkage device comprises a first hole shrinkage die, a second hole shrinkage die and a third hole shrinkage die, wherein the first hole shrinkage die is used for extruding the shape of a hollow half shaft on a hollow half shaft blank; the second reducing die is used for reducing and forming the hollow half shaft blank output by the first reducing die to a target diameter; the first reducing die, the second reducing die and the cold extrusion spline device are matched, the cold-rolled steel pipe is used as a hollow half shaft blank for multiple times of reducing forming of the hollow half shaft, material consumption can be reduced, and meanwhile the undesirable phenomena of center hole eccentricity, uneven wall thickness and the like when a special-shaped deep hole is machined in a charge bar can be avoided.

The invention discloses a rock burst ultra-deep hole blasting unloading wave absorption coupling prevention method for a steeply inclined coal seam, and belongs to the technical field of coal mining, and the method comprises the following steps: step 1, determining an unloading target rock stratum where a working face top plate and / or bottom plate stress concentration area is located in the steeply inclined coal seam; 2, determining a wave absorbing target rock stratum between the unloading target rock stratum and a roadway on the corresponding side of the working face of the steeply inclined coal seam; 3, arranging a plurality of unloading blast hole groups in the roadway; step 4, arranging a wave absorbing blast hole group at the position where the unloading blast hole group is arranged in the roadway; 5, all the wave absorbing blast holes are detonated, and all the unloading blast holes are detonated; and 6, after blasting is completed, the near-surface surrounding rock of the roadway on the corresponding side subjected to blasting serves as a supporting bearing layer for combined supporting. According to the invention, a three-level cooperative control mechanism of source unloading, propagation weakening and terminal bearing is realized, and steeply inclined coal seam clamping type roof and floor rock burst disasters are prevented fundamentally.

The invention relates to the technical field of tunnel supporting, in particular to a large-span tunnel composite supporting system which solves the problems that an existing large-span supporting structure is insufficient in strength, poor in durability and complex in construction to a certain extent and comprises a slope body, a tunnel is arranged in the slope body, and a plurality of deep holes are formed in the inner wall of the tunnel and distributed in a matrix mode. A grouting hole communicated with the deep hole is formed in the side part of the deep hole; an anchor rod mechanism is installed in the deep hole and comprises a rod body assembly and a connecting assembly, the rod body assembly is inserted into the deep hole, the connecting assembly is connected with one end of the rod body assembly, and the connecting assembly protrudes out of the deep hole; a first series-connection piece and a second series-connection piece are installed on the connecting assembly, the first series-connection piece is connected with the multiple anchor rod mechanisms arranged in the first direction in series, and the second series-connection piece is connected with the multiple anchor rod mechanisms arranged in the second direction in series; a supporting plate is arranged in the tunnel, the supporting plate is limited to the end of the anchor rod mechanism through the connecting assembly, and the supporting plate and the inner wall of the tunnel are arranged in a spaced mode.

The invention belongs to the technical field of shield tunnel construction, and particularly relates to a shield tunnel tunneling method under complex geological conditions. Comprising the steps that S1, reasonable shield tunneling machine model selection is conducted according to the specific stratum characteristics and the surrounding environment of an interval; s2, the boulders are detected, encryption and supplementary exploration are carried out in the boulder range, and the strength, size and distribution of the boulders are grasped in detail; s3, according to application conditions, the boulder treatment method comprises the steps that when good operation conditions exist in the ground range corresponding to the boulder area, the boulders are treated through ground reinforcement or deep hole blasting or punching pile crushing; if the boulder distribution range is concentrated and the development scale is not large, after a boulder area is confirmed, the stratum within a certain range around the boulder is reinforced through a sleeve valve pipe from the ground, and after slurry is solidified, the boulder is tightly wrapped; and S4, the shield tunneling machine conducts tunneling. By means of the shield tunneling method, safe and efficient tunneling of the shield under the complex geological condition of the boulder development stratum is achieved.

The invention relates to the technical field of underground mining of metal ore deposits, in particular to a staged ascending pillar-free large-diameter deep-hole lateral caving subsequent filling mining method, which comprises the following steps of: dividing a steeply inclined medium-thickness ore body into a plurality of stages, and dividing large and small stopes in the stages without leaving pillars; digging a flat-bottom ore removal structure at the bottom of the stope, and digging a rock drilling chamber at the bottom of the stope at the upper stage; digging a cutting well at the end part of the stope and expanding the cutting well into a cutting groove; large-diameter parallel deep holes are drilled downwards in the rock drilling chamber, and lateral ore caving is carried out with cutting grooves as free faces; the caved ore is transported out by a carry-scraper through the flat-bottom ore removal structure; and the stope goaf is subjected to subsequent cemented filling. The small stopes are firstly stoped and filled with the 1: 4 full-tailing cementing material, and after the small stopes are solidified, the large stopes are stoped and filled with the 1: 20 full-tailing cementing material. The method has the characteristic of ascending stoping among stages, and has the advantages that pillar-free continuous stoping is realized, and the rock drilling chamber is used as a flat bottom ore removal structure to be reused.

The invention belongs to the technical field of slope construction, and particularly relates to a down-the-hole drill and a vertical blast hole blasting high and steep slope construction method. The method comprises the following steps: S1, firstly designing and arranging holes, firstly determining a blasting area, then determining a chassis resistance line, then determining the row pitch of the holes, and calculating the drill hole spacing and the row pitch according to the drill hole diameter and the blast hole density coefficient; s7, carrying out quality acceptance; when a drilling machine is used for drilling vertical deep holes with different depths, a slope surface is subjected to blasting and layered excavation to a slope bottom line, vertical downward excavation is firstly performed to a slope toe, then the slope is brushed to the slope toe along a slope top line, a breaking hammer is used for trimming a local under-excavation part, and finally a permanent slope is formed. The slope engineering standardization work of a project is greatly improved, the over-excavation and under-excavation phenomena are reduced, and powerful support is provided for permanent slope formation.

The invention relates to a machining method for large-diameter deep-blind-hole alloy structural steel complex-shape deep groove quenched hardware. The problems that the large-diameter deep-blind-hole alloy structural steel complex-shape deep groove quenched hardware is high in machining precision, long in period, high in cost and prone to causing part scrapping are solved by means of various special cutters and clamps in different working procedures. A large-hole and deep-hole adjustable U drill, a large-hole and deep-hole bottoming drill, a numerical control vibration reduction cutter bar special for a deep blind hole double-tool-bit endoscope, a rapid dividing device and a special inner cooling quenching device are used for solving the machining problem of large-diameter deep-hole alloy structural steel complex-shape deep groove quenching hardware. The roundness of a deep hole of a machined workpiece is smaller than or equal to 0.015 mm, the symmetry degree of six-equal-division grooves is smaller than or equal to 0.03 mm, and the technical requirements of high-precision complex parts are completely met.

The invention discloses a deep hole blasting method for a strip mine step, relates to the technical field of blasting engineering, and aims to solve the problems that an existing strip mine step blasting method is easy to cause excessive large blocks on a slope surface and on the front section of the step, so that the excavation difficulty and the transportation potential safety hazard are increased. The method comprises the steps that an inclined first main blast hole and a vertical second main blast hole are drilled in the end, close to the slope surface, of a step to be blasted; a first auxiliary hole crossed with the first main blast hole is drilled in the slope surface, and a second auxiliary hole is formed beside the first main blast hole of the step; charging each blast hole with explosives; all the blast holes are connected into a detonating network through detonating lines; detonating through an exploder; wherein the first main blast hole and the second main blast hole can be distributed in a quincunx shape, the second main blast hole is vertical, and each main blast hole comprises a filling section and a charging section. According to the method, the auxiliary holes are formed to solve the problem of insufficient explosion stress of the slope and the step front section, and the explosion effect is improved.

The invention relates to the technical field of drill rod vibration reduction, in particular to a drill rod vibration reduction device based on a semi-active nonlinear energy trap. In order to solve the problem that a traditional active non-linear energy trap vibration suppression structure cannot be suitable for vibration reduction during deep hole machining, the novel drill rod vibration reduction device based on the semi-active non-linear energy trap is provided and comprises a connecting base, an NES mechanism and a PID controller. The NES mechanism comprises two flexible hinges, two mass blocks, a left elastic auxiliary beam, an elastic main beam and a right elastic auxiliary beam, the left elastic auxiliary beam is composed of two left semi-arcs, the two left semi-arcs are distributed at the axial left end in the annular groove in a front-back mode, the right elastic auxiliary beam is composed of two right semi-arcs, the two right semi-arcs are distributed at the axial right end in the annular groove in a front-back mode, and the two right semi-arcs are distributed at the axial left end in the annular groove in a front-back mode. The elastic main beam is composed of two main semicircles, and the two main semicircles are distributed in the axial middle of the interior of the annular groove in a front-and-back mode. The device is simple in structure and obvious in damping effect.

The invention provides an efficient deep hole rotary drilling rig, and relates to the technical field of rotary drilling rigs. The efficient deep hole rotary drilling rig comprises a rotary drilling rig body and a drilling bucket. The drilling bucket comprises a barrel, a drilling claw assembly and a switch piece. The drilling claw assembly comprises a plurality of drilling claws and a plurality of drill bits; the drilling claw comprises a side plate, a bottom plate, a collecting piece and a limiting block; the side plates and the bottom plate are integrally formed, the bottom plate is provided with a soil inlet, the collecting piece is installed below the bottom plate, the limiting block is rotationally connected with the barrel, the limiting block is provided with a limiting hole, and the drill bit is installed at the bottom of the collecting piece. The switch piece comprises a motor, a turbine and a worm; the motor is installed on the barrel and electrically connected with the rotary drilling rig body, the turbine is installed on an output shaft of the motor, the worm is matched with the turbine and penetrates through the barrel, and the output end of the worm is matched with the limiting hole. The efficient deep hole rotary drilling rig solves the technical problems that according to an existing rotary drilling rig, opening and closing of a drilling bucket are tedious, and the rotary drilling efficiency is low.

The invention provides a deep hole drilling numerical control correction method and system based on force sense feedback, and relates to the technical field of machining numerical control, and the method comprises the steps: monitoring the vibration amplitude and frequency spectrum features of the surface of a drill rod, comparing the vibration amplitude and frequency spectrum features with a cutting vibration feature library, and extracting a chip attachment signal strength index; fusing the index with a resultant force time domain signal to generate a data pair, and separating an additional load time domain sequence from a pure cutting force time domain sequence by using an interference stripping algorithm; if the additional load time domain sequence exceeds the threshold value, a cleaning signal is issued, and cuttings are discharged; comparing the pure cutting force time domain sequence with a corresponding reference, calculating a force deviation, and generating a compensation instruction according to a feed compensation strategy; the instruction is executed, machining continues, the hole diameter and guiding deviation are fed back, the correction effect is verified, and parameters are adjusted till the machining precision is met, so that chip accumulation can be accurately recognized, cleaning is triggered, the real cutting force and the additional interference load are effectively separated, the feeding parameters are dynamically compensated, and the deep hole machining precision and stability are remarkably improved.

The invention belongs to the field of machine manufacturing, and discloses a deep hole inner molded surface profiling boring direct-drive intelligent control cutter system which comprises a cutter assembly, a rotary drive assembly and a sensor assembly. A rotary driving shaft of the rotary driving assembly is connected with an axial gear of the right-angle bevel gear pair, the inner side of a radial gear is connected with a driving nut, and the base plate and the tool apron are connected through a ball screw, so that a blade on the tool apron is driven to achieve radial feeding. The sensor assembly comprises a force sensor, a temperature sensor and a vibration sensor, signals are collected in real time and fed back to the drive control circuit board to control the rotary drive assembly, and therefore the profiling boring precision of blade feeding is improved. Direct driving and intelligent sensing control are combined and embedded in the profiling adjusting type boring cutter, a cutter transmission chain is greatly reduced, the transmission rigidity, the control precision and the response speed are improved, and therefore the performance requirements of a deep hole complex inner profile for high precision, high quality, high efficiency and high cost performance are met.

The invention relates to the technical field of glass through hole processing, in particular to a glass support plate deep hole metallization coating method which comprises the following steps: carrying out through hole processing, ultrasonic cleaning and drying on a glass support plate to obtain a pretreated glass support plate; one side of the pretreated glass support plate is marked as a surface A, and the other side of the pretreated glass support plate is marked as a surface B; sticking an adhesive tape on the surface A, and then carrying out magnetron sputtering coating on the surface B; after the adhesive tape is removed, the A surface is cleaned to obtain a pre-metalized glass carrier plate; in the coating process, heating to 180-250 DEG C in a vacuum state, and sequentially sputtering and depositing ceramic layers after the surface of the pretreated glass support plate is etched; one side of the pre-metallized glass support plate, which is subjected to magnetron sputtering coating, is marked as a C surface, and the other side of the pre-metallized glass support plate is marked as a D surface; sticking an adhesive tape on the surface C, and carrying out magnetron sputtering coating on the surface D; the surface C is cleaned after the adhesive tape is removed; the film coating process is the same as the film coating process.

The invention relates to the technical field of deep hole machining, in particular to a drilling device for a deep blind hole of an undercarriage piston rod, which comprises a drill rod, a drill bit is arranged at one end of the drill rod, the drill rod is hollow, a liquid inlet and a liquid outlet are formed in one end of the drill rod, a liquid conveying assembly is arranged on the drill rod, and cutting liquid is conveyed from the liquid inlet by the liquid conveying assembly. Meanwhile, a liquid suction assembly is arranged, the used cutting liquid is pumped out through the liquid suction assembly, and a heat insulation barrel and a heat insulation bag are arranged in the drill rod, so that heat exchange is not generated between the cutting liquid conveyed by a liquid conveying assembly and the used cutting liquid; therefore, the influence of the used cutting fluid on the conveyed cutting fluid is reduced, the influence on the cooling effect of the drill bit is further reduced, meanwhile, the liquid conveying assembly and the liquid pumping assembly are arranged to form a pumping and sucking structure, the influence on the air pressure in the deep hole is avoided, and the deep hole machining quality is improved.

The utility model relates to a platform carrying a movable guide sleeve seat and a deep hole milling and drilling machine tool, the platform is provided with a spindle box, the guide sleeve seat and a slide rail seat, the slide rail seat is provided with a main slide rail, the spindle box and the guide sleeve seat are installed on the main slide rail in a front-back sliding mode, and the guide sleeve seat is located in front of the spindle box; the platform is further provided with a rotatable carrying table, and an auxiliary sliding rail matched with the main sliding rail is arranged on the carrying table. The carrying table rotates to the front end of the sliding rail base so that the auxiliary sliding rail can be in butt joint with the main sliding rail, the guide sleeve base slides to the auxiliary sliding rail, and the carrying table rotates to one side of the sliding rail base so as to avoid the spindle box together with the guide sleeve base. The carrying platform is installed on the platform in a rotating mode, matching of the guide sleeve base and the spindle box is controlled by rotating the carrying platform, compared with a guide rail structure and a carrying platform rotating installation mode, more space is saved, more space can be provided in front of the spindle box, and inclined hole machining can be conveniently conducted on a workpiece.

The invention provides an electric spark machining method for a deep and narrow vent groove of a guide vane and the guide vane. The method comprises the following steps that firstly, electric spark high-speed small hole machining is adopted, and a plurality of bottom holes are machined in the guide vane to be machined through a first electrode; a second electrode is manufactured, and the forming electrode and the corresponding clamping auxiliary part are installed on the electric spark forming machine; and electric spark forming oil immersion machining is adopted, lateral flushing liquid of the guide vane to be machined is increased, machining parameters of an electric spark forming machine are set, and deep and narrow vent grooves are machined. Part of the bottom holes are pre-machined in the position to be machined in the guide vane, the deep and narrow vent grooves are machined in the bottom holes through the method that the hollow forming electrode is used for machining the forming grooves in an electric spark forming mode, and the oil flushing and chip removal conditions during forming of the deep and narrow vent grooves are improved; and the electric spark forming machining efficiency and the surface machining quality of the guide vane are improved. And the device can be applied to machining of various deep holes, grooves and runners, and is good in applicability.