1683 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 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 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 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 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 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 discloses an anchor rod and grouting combined reinforcement control method for surrounding rock of an argillaceous weak cemented roadway, relates to the technical field of coal mine roadway support, and solves the problems of poor anchoring performance of an anchor rod, insufficient grouting pertinence and poor grouting and anchoring collaboration in the prior art. According to the technical scheme, the method comprises the steps that grouting and supporting parameter collaborative design is conducted; after roadway tunneling, full-section concrete spraying sealing is immediately carried out; deep and shallow hole step-by-step differential grouting is conducted, shallow hole low-pressure permeation is conducted firstly to form a shallow reinforcing ring, and then deep hole high-pressure splitting is conducted to form a deep reinforcing area; and finally, high-pretightening-force anchor rods (cables) are installed to form a cooperative bearing body. The reinforcing ring layer with the reasonable strength gradient is formed, efficient cooperation of surrounding rock modification and active supporting is achieved, and the supporting reliability and the overall stability of surrounding rock are remarkably improved.

The invention relates to the field of laser machining, in particular to an optical zoom laser precision machining deep hole and deep groove device which comprises a first shell, a laser generator mounting seat, a laser generator, a beam expander mounting seat and a beam expander, an air induction opening and an air exhaust opening are formed in the two opposite side walls of the first shell correspondingly, and a heat dissipation mechanism is mounted on the first shell; the heat dissipation mechanism comprises an induced draft fan and an exhaust fan, the induced draft fan and the exhaust fan are fixedly connected to the two opposite side walls of the first shell correspondingly, the induced draft fan communicates with the induced draft opening, the exhaust fan communicates with the exhaust opening, and a plurality of first heat dissipation fins arranged at equal intervals are fixedly connected to the laser generator installation base. The multiple first cooling fins are located between the induced draft fan and the exhaust fan. The problem that the heat dissipation effect of an optical instrument is poor is solved.

The invention relates to the technical field of soil stratified sampling, in particular to soil stratified sampling equipment which comprises a lifting table, a stand column and a drill rod. The upper end of the outer drill pipe is rotatably mounted in the middle of the lifting table, a sludge discharge port is formed in the outer wall of the upper end of the outer drill pipe, the inner drill pipe is rotatably mounted in the outer drill pipe in a liftable manner, the first spiral blade is mounted on the outer wall of the inner drill pipe, and the first spiral blade is mounted on the tip end of the inner drill pipe. The first spiral blade is located between the inner drilling pipe and the outer drilling pipe, the lower end of the inner drilling pipe is hinged to the tip end through a hinge shaft, the tip end and a lower end butt joint opening of the inner drilling pipe are obliquely arranged, the driving mechanism is installed on the lifting table and drives the outer drilling pipe and the inner drilling pipe to rotate oppositely, and the opening and closing assembly is installed on the inner drilling pipe. The opening and closing assembly is used for driving the tip to overturn around the hinge shaft; the deep hole drilling device can drill a deep hole, clean soil in the deep hole and perform deep and stratified sampling, and is convenient to operate and small in limitation.

The invention discloses an electric spindle with a central water outlet mechanism. The electric spindle comprises a shell. A through cavity is formed in the middle of the shaft core, and one end of the shaft core is sleeved with a driving key; the motor comprises a stator and a rotor; the broach mechanism comprises an end seat, a center rod, a pull rod, a pull claw assembly and a driving device, and a sleeve piece is arranged between the end seat and the center rod; the central water outlet mechanism comprises a fluid inlet path, a fluid outlet path and a fluid channel, and the fluid channel is communicated with the fluid inlet path and the fluid outlet path; and a cooling mechanism. The cooling mechanism, the pulling mechanism and the center water outlet mechanism are integrated, the shaft core is cooled, water can be sprayed to a tool penetrating into a hole to cool the tool when the tool of the electric spindle machines an over-deep hole, the whole tool is cooled through the cooling mechanism, the thermal expansion effect of the heated shaft core is counteracted, and the machining efficiency is improved. Impact force generated on a bearing in the tool loosening and clamping process is eliminated through the tool pulling mechanism, water is accurately sprayed to a heated tool through the center water outlet mechanism to enable the heated tool to be cooled, and therefore thermal deformation of the tool is effectively prevented.

The invention relates to the technical field of cutting machining, in particular to a lengthened hard alloy spiral cutter strip and cutting equipment thereof, the cutter strip main body of the spiral cutter strip adopts a 60-degree large spiral angle and a lengthened design, so that a cutter provided with the spiral cutter strip can complete machining of a deep hole or a side wall at a time; the cutting force of the cutter can be more axial, and radial vibration in the cutting process is reduced; the cutting equipment comprises a rack and a bracket fixed to the top of the rack, a feeding part is installed on the rack, and a material changing part is fixedly installed on the bracket. The material changing part comprises a material frame fixed to the bracket, a material conveying belt installed at one end of the bottom of the material frame, a material stirring assembly installed in the middle of the material frame and a material clamping assembly used for stopping the material stirring assembly, and the material changing part further comprises an embedding groove, a clamping plate and a clamping positioning assembly. And a target piece on a machining station can be automatically clamped and corrected.

The invention relates to the technical field of intelligent blasting, and discloses an automatic blasthole arrangement method for a slow slope deep hole step and related equipment, and the method comprises the following steps: obtaining topographic data of a target step, and determining an initial blasthole layout for the target step according to the topographic data; determining whether a first included angle between the designed slope bottom line of the target step and the natural slope surface line is within a preset range or not; in response to the first included angle within the preset range, determining that the slope surface of the target step is a gentle slope surface; a main blast hole closest to the gentle slope in the initial blast hole layout is determined, a first intersection point of the main blast hole and a designed slope bottom line and a second intersection point of the natural slope surface line and the designed slope bottom line are determined, and the resistance line distance between the first intersection point and the second intersection point is calculated; whether the resistance line distance exceeds a preset distance threshold value or not is determined, and it is determined that a supplementary blast hole is additionally formed between the main blast hole and the natural slope line in response to the fact that the resistance line distance exceeds the preset distance threshold value. Therefore, it can be guaranteed that the blasting effect is better.

The invention relates to the technical field of deep hole machines, and discloses a bolt sleeve three-station deep hole machine which comprises a bottom shell, an upper machine shell and a plurality of hydraulic clamping shells, the upper machine shell is fixed to the top of the bottom shell, and the hydraulic clamping shells are fixed in the upper machine shell. A hydraulic oil cylinder is fixed to the center of the outer wall of the top of the hydraulic clamping shell, a connecting rod is arranged at the bottom end of a piston rod of the hydraulic oil cylinder, a movable seat is arranged at the bottom end of the connecting rod, a pressing block is arranged at the bottom of the movable seat, a drill sleeve is arranged on the inner wall of the bottom of the hydraulic clamping shell, and a bolt sleeve is arranged between the drill sleeve and the pressing block. The drilling motor drives the drill bit to rotate, drilling of the bolt sleeve is achieved, and due to the fact that the bolt sleeve is vertically arranged, chip removal in the drilling process is facilitated; and through the arrangement of the three hydraulic clamping shells and the assemblies of the hydraulic clamping shells, bolt sleeve drilling machining can be independently conducted on three stations, and the machining efficiency can be improved.

The invention discloses a one-stop machining method for a high-precision step deep and long hole in a high-voltage switch butt joint. The one-stop machining method comprises the steps that a special tool is adopted for clamping and aligning a workpiece. And oppositely drilling through holes in the two sides of the workpiece by using the combined tool to obtain the through holes. And the combined tool enters the through hole from the two ends of the main hole to bore the right-end stepped hole and the left-end stepped hole step by step. And the coaxiality of the left end stepped hole and the right end stepped hole is detected on the machine. The special tool is matched with the combined tool to complete machining of deep and long holes of parts, on-machine detection can be achieved, defective products are effectively prevented from flowing out, a traditional machining method for the high-precision stepped deep and long holes is broken through, the problem that a drill bit deflects, and consequently a follow-up tool is broken is solved, and the machining efficiency is improved. The high-precision step deep and long hole machining device reduces low production efficiency and product percent of pass caused by out-of-tolerance straightness of a grinding process, and realizes one-stop machining of a high-precision step deep and long hole of a high-voltage switch with higher efficiency and higher quality under the condition of ensuring dimensional precision, form and location tolerance and surface quality.

The invention relates to the technical field of deep hole machining, in particular to boring equipment and technology for a fan spindle, the boring equipment for the fan spindle comprises an outer pipe, an inner pipe and a center rod, a fixing seat is arranged at the rear end of the outer pipe, an oil inlet and an oil outlet are formed in the fixing seat, and an annular flow channel is formed between the outer pipe and the inner pipe; a chip removal channel is formed between the inner pipe and the center rod, the oil inlet is communicated with the annular runner, and the oil outlet is communicated with the chip removal channel; the outer pipe is further provided with a liquid passing hole, and the cutting fluid in the annular flow channel flows back into the chip removal channel through the liquid passing hole. A first spiral groove is formed in the peripheral face of the front end of the inner pipe, and cutting fluid can drive the inner pipe to rotate when flowing through the first spiral groove. The front end of the center rod is a conical head, a second spiral groove is formed in the peripheral face of the conical head, and when the cutting fluid flows back to the chip removal channel, the inner pipe drives the cutting fluid to rotate and flow along the second spiral groove, so that backward suction force is generated in the chip removal channel, and waste of the cutting fluid is avoided while chip removal is achieved.

The invention relates to the field of deep hole drilling, in particular to a deep hole drilling precision regulation and control method and device based on dust detection. When a machining instruction is received, tool data of equipment and material data of a workpiece are obtained; inputting the tool data and the material data into a preset correlation model, and analyzing and outputting equipment initial processing parameters through the correlation model; when the equipment starts machining, dust data of the machining area are obtained in real time, and whether the conditions for adjusting the machining parameters are met or not is judged according to the dust data; analyzing the dust data, extracting the dust capacity of the processing area, and if the dust capacity exceeds a preset dynamic threshold value, judging that the condition of adjusting the processing data of the equipment is met; based on a judgment result, analyzing dust distribution information of the workpiece machining area; and processing adjustment parameters of the equipment are generated according to the dust distribution information of the workpiece processing area. By analyzing the dust distribution information, the system can further optimize the conditions of the machining areas, and it is ensured that the machining effect of each area is accurately controlled.

The hydraulic stand column remanufacturing production line comprises a cylinder body repairing production line and a hydraulic part assembling production line which are arranged on the two sides of a main channel correspondingly. The cylinder body repairing production line comprises a process joint welding area, a raw material storage area, a repairing line raw material warehousing area, an outer circular surface repairing area, an inner circular surface repairing area, a honing buffer area, a deep hole honing area and a process joint cutting area which are arranged in sequence; the hydraulic part assembly production line comprises an assembly line raw material warehousing area, an assembly line material storage area, a cylinder body cleaning area, an assembly area A, an assembly area B and an assembly finished product storage area which are sequentially arranged. Workpieces are transferred through the truss manipulator and the AGV. Automatic surface repairing operation and automatic assembling operation of the heavy-weight cylinder workpiece can be automatically achieved, the automation degree is high, the labor cost can be greatly saved, the working efficiency and the production efficiency are improved, and meanwhile the assembling quality can be effectively guaranteed.