238 results about "Deep hole drilling" patented technology

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 discloses a preparation method for smelting a high-rhenium-molybdenum alloy pipe. The method comprises the following steps: 1, uniformly mixing Mo powder and Re powder, performing cold isostatic pressing, and sintering to obtain a high-rhenium-molybdenum alloy sintered blank; 2, carrying out vacuum electron beam smelting for many times to obtain a smelted high-rhenium molybdenum alloy cast ingot; 3, performing high-temperature extrusion combination and forging to obtain a smelted high-rhenium molybdenum alloy bar; 4, performing deep hole drilling, honing and machining treatment to obtain a smelted high-rhenium molybdenum alloy pipe blank; and 5, performing multi-pass high-temperature rolling, intermediate heat treatment, surface treatment and finished product heat treatment to obtain the smelted high-rhenium molybdenum alloy pipe. According to the method, repeated vacuum electron beam smelting is adopted, and repeated pressure machining such as high-temperature extrusion, forging and high-temperature rolling is combined, so that the purity and component uniformity of the smelted high-rhenium molybdenum alloy pipe are improved, the structure is uniform, the mechanical property is excellent, and higher dimensional precision and surface quality are obtained; the material is suitable for the fields of cladding pipes, heat pipes, medical implants and the like in nuclear reactors.

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 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 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 invention relates to the technical field of steam turbine rotor machining, and discloses an elastic supporting device of a steam turbine rotor deep hole drilling and boring machine, which comprises a towing bracket and a center frame, supporting assemblies are arranged on the circumference of the center frame, and each supporting assembly comprises a cylinder body and a piston rod, one end of the piston rod is fixed on a sliding piston in the cylinder body, and the other end is rotatably provided with a central roller; an air compressor is further arranged on the center frame and communicated with the air cavity, the air cavity is communicated with an air spraying pipe and a plurality of air conveying pipes, an air outlet of the air spraying pipe obliquely faces the rotor, and the air conveying pipes are connected with the telescopic rods in the corresponding piston rods after passing through the lubricating oil tank. A side notch is formed in the piston rod, an end cover inserting block is arranged at the position, corresponding to the side notch, of the cylinder body end cover, and an inner hole is formed in the position, corresponding to the side notch, of the center frame shell. The piston rod has the advantages that coolant water stains can be removed, lubricating oil is accurately conveyed, complex external pipelines are not needed, the stability of the piston rod is improved, and dynamic lubrication is enhanced.

The invention discloses a low-carbon drilling ultra-deep hole drilling machine on-line detection and deviation correction system while drilling, relates to the technical field of ultra-deep hole drilling, and aims to solve the technical problems that in the ultra-deep hole drilling process, carbon emission is high, hole sites are prone to deviation, and drilling efficiency and engineering quality are affected. Comprising a sensor group, a data acquisition cable, an integrated data processor and a GPS. The host platform comprises an inclinometry module, a geological forecast module, a comprehensive detection module, a well logging module, a drill hole correction module, a detection and correction module, an intelligent decision module, a drill bit monitoring module and an auxiliary module; an ultra-deep hole drilling machine comprises a rack system, an auxiliary driving system, a working rotation device, a movable type follow-up sliding platform and a drilling machine control system. According to the method, while-drilling online detection and instant deviation correction in a complex geological environment are realized, the problems that track deviation monitoring is lagged and freeze thawing dynamic interference cannot be handled are solved, and the drilling accuracy is remarkably improved.

The chip removal structure for the deep hole drilling and boring machine comprises a drilling and boring machine body and a driving assembly arranged on the drilling and boring machine body, a drill rod is arranged on the driving assembly, a drill bit is fixedly connected to the drill rod, and a workpiece is placed on the drilling and boring machine body; a chip removal assembly is arranged on the drilling and boring machine body, the chip removal assembly is used for discharging metal chips generated during drilling of the drill bit, the chip removal assembly comprises a mounting table, and an annular gap used for discharging cutting fluid to a cutting area is formed between the drill rod and the mounting table. By arranging the chip removal assembly, when a workpiece is drilled, external cutting fluid can enter a cutting area through an annular gap and an arc opening in the drill bit, and while the cutting area is lubricated and cooled, metal chips generated in the cutting area can be taken away and flushed into a discharging groove in the drill rod to be discharged; the whole device enables metal scraps to be discharged from the interior of the drill rod, and therefore the situation that the metal scraps are discharged through a gap between the drill rod and a drill hole to scratch the drill hole is avoided.

The utility model provides a deep perforating device for roadbed settlement reinforcement, which relates to the technical field of building construction and comprises a triangular bottom plate. Three groups of balance plates are annularly arranged on the triangular bottom plate, a supporting vertical plate is vertically arranged on the upper end face of the triangular bottom plate, a triangular top plate is fixedly connected to the top of the supporting vertical plate, and two guide columns are fixedly connected between the triangular top plate and the triangular bottom plate; by arranging the drilling and smoothing mechanism, after drilling operation is completed, a rotating rod slowly stretches out towards the earth surface direction, meanwhile, reverse accelerated rotating motion is conducted, and by means of inertia of an inertia balance weight piece, a traction rod forwards pushes a balance weight block to be separated towards the outer side; at the moment, the smoothing arc plate makes contact with the inner wall of the drill hole, the balancing weight exerts pressure, and the smoothing arc plate is tightly attached to the inner wall of the drill hole to do high-speed rotating motion, so that the inner wall is smoothed, the concave-convex degree of the inner wall is effectively reduced, and favorable conditions are created for follow-up steel bar implanting work; the problem that after an existing foundation punching device completes punching operation, the hole wall is obviously uneven is solved.

The present invention provides a production method for small-diameter thick-wall titanium alloy seamless tubes, comprising: Step 1: obtaining a titanium alloy ingot through three times of VAR melting; Step 2: blooming, drawing out, and radial forging the titanium alloy ingot into a round bar, and machining the round bar into a hollow tube blank through deep hole drilling, internal honing, and external turning; Step 3: performing three passes of cold rolling on the hollow tube blank to produce a finished titanium alloy seamless tube; sampling the titanium alloy tube after each pass of cold rolling, observing its crack defects, removing the crack defects, and performing intermediate vacuum annealing after removing the crack defects; Step 4: performing vacuum annealing, straightening, pickling, ultrasonic testing, and packaging on the titanium alloy finished tube in Step 3 to produce a small-diameter thick-wall titanium alloy seamless tube. The present invention comprehensively formulates measures from aspects such as tube blank specification design, tube blank processing technology, titanium alloy tube cold rolling process design, vacuum annealing process design, and internal and external surface defect treatment technology of the tube blank to solve the problem of internal surface cracks in cold rolling of small-diameter thick-wall titanium alloy seamless tubes.

The utility model relates to the technical field of machining, in particular to a high-precision rotatable auxiliary supporting device which comprises a rotating center frame body, a rotating body arranged on one side of the rotating center frame body, four adjusting cavities arranged on the rotating body and clamping contacts arranged in the adjusting cavities in a sliding fit mode. The clamping contact comprises a flange cover arranged on the outer wall of the rotating body, a lead screw rotationally connected with the flange cover through a bearing, a nut and a threaded sleeve which are in threaded fit with the lead screw, a sliding sleeve connected with one end of the threaded sleeve, an ejector head arranged at one end of the sliding sleeve and located at one end of the lead screw, and a limiting open groove formed in the outer wall of the sliding sleeve. The locking mechanism is in threaded fit with one side of the rotating body and is in sliding fit with the limiting open slot; according to the device, the swing of the workpiece during supporting is reduced, the machining precision and the qualified rate are improved, the vibration problem in the high-precision machining process of the deep hole drilling and boring machine is solved, the machining precision of the whole machine is guaranteed, the industry development is promoted, and the machining efficiency and the product quality are improved.

The invention discloses a modular high-frequency vibration deep hole drilling device, which relates to the technical field of cutting numerical control blades, and comprises a driving assembly, a sleeve and a split type tool bit assembly which are connected in sequence, the split type tool bit assembly comprises a hard alloy base body and a composite cutting part with the surface coated with a diamond coating, a spiral chip groove is formed in the surface of the composite cutting part, one end of the base body and the composite cutting part are of an integrally-formed structure, a piezoelectric ceramic vibrator is embedded in the other end of the base body, and the piezoelectric ceramic vibrator is connected with the hard alloy base body. The base body is of a detachable two-section type and is formed by nesting through a thread locking mechanism. The tool bit and the base body can be conveniently and rapidly disassembled and assembled.

1. The name of this design product: Deep hole drilling rack (round wood base). 2. Purpose of this design product: This design product is a deep hole drilling rack for fixing wood. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The embodiment of the utility model provides a deep hole drilling machine tool. The deep hole drilling machine tool comprises a base; the driving assembly comprises a first rotating mechanism and a second rotating mechanism, the first rotating mechanism can rotate around the horizontal axis, the second rotating mechanism is provided with a surface used for bearing a workpiece, the second rotating mechanism can rotate around the axis of the second rotating mechanism, and the axis of the second rotating mechanism passes through the center of the surface and is perpendicular to the surface. The rotating axis of the second rotating mechanism intersects and is perpendicular to the rotating axis of the first rotating mechanism. The guide sleeve can move in the vertical direction; and the main shaft can move in the vertical direction, the main shaft is used for clamping the gun drill, and the gun drill can penetrate through the guide sleeve to conduct deep hole machining on the workpiece. According to the deep hole drilling machine tool, deep hole machining can be conducted on a workpiece at any space angle; the gun drill is guided and positioned through the guide sleeve, so that the machining precision can be improved; in the process of drilling inclined holes in a workpiece, the workpiece does not need to be transferred among multiple machines and does not need to be positioned and calibrated again, straight hole and inclined hole machining can be conducted on multiple faces of the workpiece on one machine tool by clamping the workpiece at a time, and therefore the machining efficiency can be improved.

The invention relates to the technical field of deep hole machining, in particular to a deep hole drilling tool with an inner cooling channel, which comprises a mounting rod, a drill bit, a mounting sleeve, an adjusting assembly and a positioning assembly. During boring operation, the mounting rod is fixed on an original axis through the positioning assembly by taking a completed drill hole as a positioning reference, so that the mounting rod can provide axial guidance and radial support for the mounting sleeve. Therefore, the mounting sleeve is always kept highly coaxial with the drilling axis in the rotating process, the axis deviation problem caused by tool changing or re-clamping in the traditional process is effectively avoided, and the consistency of the drilling center and the boring center is guaranteed.

The utility model discloses a grinding clamp for a tiny cutter of a deep hole drill. Comprising a base, a telescopic rod arranged on the upper side of the base, an outer plate arranged on the surface of the front side of the telescopic rod, a dismounting and mounting assembly arranged on the front side of the outer plate, a connecting plate arranged on the outer wall of the front side of the dismounting and mounting assembly, a transverse frame installed on the surface of the front side of the connecting plate and a clamping assembly arranged on the lower side of the transverse frame, and the dismounting and mounting assembly comprises an inserting groove formed in the surface of the front side of the outer plate; the clamping assembly comprises a center groove formed in the center of the transverse frame, a first bevel gear is installed on the inner wall of the front end of the center groove in a matched mode, and a second bevel gear is installed on the inner wall of the front end of the center groove in a matched mode. And the clamp can be conveniently and independently detached for maintenance, and the tool can be conveniently and efficiently clamped.

The present application relates to a kind of high-carbon chromium bearing steel wire rod containing sulfur and its manufacturing method, belong to wire rod steel field.The chemical composition of wire rod is designed as C:0.95~1.05%, Si:0.15~0.40%, Mn:0.25~0.45%, P:≤0.015%, S:0.020~0.055%, Cr:1.35~1.65%, Al:0.030~0.060%, Cu≤0.10%, Mo≤0.05%, Ni≤0.05%, As+Sn+Sb≤0.015%, O≤0.0006%, Ti≤0.0015%, Ca≤0.001%, the balance is Fe and inevitable impurity element.The production process is: converter initial smelting-LF refining-vacuum degassing-continuous casting-hot delivery-heated casting blank+ breakdown rolling-intermediate billet surface treatment-intermediate billet heating+wire rod rolling-controlling cooling.The present application develops a kind of wire rod easy to turn or deep hole drilling processing, and the production method of the wire rod can save production cost greatly and improve production efficiency.

The utility model relates to the technical field of blasting hole protection for surface mine deep hole drilling blasting, and discloses a novel blasting hole protector which comprises a hole protector body. When drilling is conducted through a ground drill hole, the hole protector body is inserted into the drill hole, meanwhile, the supporting device is opened, then the sleeve and the supporting leg are rotated and opened through the first rotating base, and when the supporting device is not long, the supporting leg is ejected out through the extrusion spring; the supporting plate supports and lifts the ground to the position of the fixing groove through rotation of the second rotating seat, flowing stone sand is prevented from flowing into the hole protector main body in severe weather, and the situation that explosives cannot be installed in place due to falling of loose rock blocks after a drilling machine drills holes and during charging is avoided, or inert spacing layers are formed between explosive columns when the explosives fall into the hole is avoided; and the explosion effect is influenced, and the explosion cost is reduced especially in the operation in a rock stratum loose section and in severe rainstorm weather.

The utility model relates to the technical field of deep hole drilling machine tools, in particular to a guide sleeve turnover mechanism of a deep hole drilling machine tool, which comprises a main shaft seat, a mounting seat is arranged on the upper side of the main shaft seat, a rotating shaft is rotatably arranged on the mounting seat, the rotating shaft is parallel to the thickness direction of the main shaft seat, the rotating shaft is connected with a mounting plate, and the mounting plate downwards falls on the front surface of the main shaft seat. A guide sleeve body for guiding and supporting a drill bit is fixedly mounted on the mounting plate, a locking assembly is arranged on the front face of the spindle seat and used for locking the mounting plate and unlocking the mounting plate, a driving assembly is further arranged on the upper side of the spindle seat, and the driving assembly is connected with the rotating shaft to drive the rotating shaft to rotate in a reciprocating mode. The efficiency of avoiding the drill bit by the guide sleeve is improved, and the workload of workers is reduced.

The utility model belongs to the deep hole drilling technical field especially, it is a kind of deep hole drill for machining middle axle of automobile reduction gearbox, to the existing in use, since the heat generated by drill head and hole wall friction, it is inconvenient to carry out heat dissipation, leading to drill head overheating influence processing quality problem, present and propose following scheme, including drill fixed handle, the one end of drill fixed handle is connected with drill head body, the other end of drill fixed handle is connected with water inlet pipe, the inside of drill fixed handle is equipped with cooling mechanism for cooling drill head, the one side of cooling mechanism is equipped with quick release mechanism for the disassembly of drill head. The utility model is sprayed by the water injection hole of drill head body terminal, drill head body is in hole, so that the water that sprays will pass through the chip flute on drill head body and be discharged from inside to outside, to further cool drill head body, and can flush out the impurity adhered to the outer surface of drill head body.

The present invention relates to the technical field of mining of metal and non-metallic ores, and specifically to a method of mining with an empty field followed by backfilling in a downward fan-shaped deep hole drilling stage suitable for mining steeply inclined and inclined ore bodies. The mining method of the present invention is suitable for mining inclined ores with a horizontal thickness of more than 20m, a long strike, good ore fluidity, and an ore footplate movement angle of 30 to 55 degrees. This method arranges one section and two middle sections in the ore body, and arranges a bottom structure for ore recovery in the bottom section. Compared with traditional mining methods, one or two fewer drilling sections are arranged, which reduces a large amount of mining and cutting engineering. Intermediate pillars are left between the mine room and the ore block as supporting pillars to ensure mining safety. A low ash-sand ratio or full tailings filling is used to reduce filling costs. The filling body is not exposed during mining of adjacent mine rooms, which reduces depletion, while taking into account efficiency, safety, cost, depletion and loss.

The invention discloses a multi-shaft deep hole drilling machine capable of being rapidly cooled. A multi-shaft deep hole drilling machine capable of being rapidly cooled comprises a machine tool, a Y shaft is arranged on the machine tool, an X-shaft seat is installed on the machine tool, a tool bit is connected to the X-shaft seat, and a workpiece fixing table is arranged under the tool bit. A recovery base is arranged in the workpiece fixing table, an adjusting sliding table is arranged above the recovery base, a feeding drive is arranged below the adjusting sliding table, and a workpiece clamping base is installed on the adjusting sliding table. The position of the clamping piece seat is adjusted by matching the feeding drive with the adjusting sliding table, so that a workpiece on the clamping piece seat is aligned with a tool bit to be subjected to deep hole machining, chippings generated during feeding and retracting of the machining tool fall into the T-shaped groove, and the chippings are discharged from the receiving hopper box and guided by the lantern ring under the suction of the lower chipping suction device, so that the chippings are discharged into the T-shaped groove. And therefore, the situation that the chippings are accumulated in the T-shaped groove, displace and are difficult to clean is effectively avoided.

The present invention provides a numerical control device that can promote chip discharge appropriately and reduce machining time for hole drilling. The numerical control device comprises: a deep hole machining execution unit that performs deep hole drilling by repeating a cut operation and a return operation, the cut operation being an operation for cutting a workpiece while rotating a cutting tool and the return operation being an operation for retracting the cutting tool while rotating the cutting tool; and a chip discharge time calculation unit that calculates a chip discharge time according to the position of the cutting tool after each cut in the cut operation, wherein the deep hole machining execution unit performs the return operation during the chip discharge time.

The utility model discloses a stepping type deep hole drill which comprises a workbench, the side wall of the workbench is fixedly connected with a side frame, the front end of the side frame is fixedly connected with a stock bin mechanism, the outer wall of a first guide rail is connected with a feeding mechanism in a sliding mode, and a clamping and positioning assembly is arranged between the stock bin mechanism and the feeding mechanism. A deep hole mechanism is fixedly connected to the position, close to the front end, of the top of the workbench, a hole guiding mechanism is fixedly connected to the position, close to the deep hole mechanism, of the top of the workbench, and a threading mechanism is fixedly connected to the position, close to the hole guiding mechanism, of the top of the workbench. A soot blowing mechanism is fixedly connected to the position, close to the threading mechanism, of the top of the workbench. According to the utility model, the deep hole drilling equipment is subjected to step-by-step feeding processing setting, so that the deep hole drilling equipment is fully automatic when deep hole processing is carried out on materials, the productivity is improved, the manpower load of operators is reduced, and a plurality of operating mechanisms are modularly arranged, so that tidy and effective procedure arrangement operation can be conveniently carried out.

The application discloses a special center frame device for a deep hole drilling machine for small hole processing and relates to the technical field of machining equipment.The application comprises a base, the base is composed of a bottom plate and two groups of C-shaped clamping blocks, the two groups of C-shaped clamping blocks are fixedly installed at the two ends of the bottom of the bottom plate through bolts, a clamping threaded hole is formed in the top of the C-shaped clamping block, the C-shaped clamping block can be fixedly installed outside the machine tool guide rail through the bolt screwed into the clamping threaded hole, and a support assembly is fixedly installed on the top of the bottom plate through bolts.The C-shaped clamping block can be installed at any position of the machine tool guide rail, the high straightness and good parallelism of the machine tool guide rail can be utilized, the support assembly can be quickly and high-precisely installed, the machining of slender shaft workpieces with different lengths can be implemented, the C-shaped clamping block can be quickly removed when not needed, the C-shaped clamping block is convenient to use, the C-shaped clamping block structure can be stably clamped on machine tool guide rails with different specifications, and the application range is wide.

The utility model relates to deep hole drilling equipment based on a lathe, which relates to the field of deep hole drilling and comprises the lathe and a deep hole drilling mechanism, the lathe is provided with a lathe frame, a three-jaw chuck and a feed frame, the three-jaw chuck is rotatably connected with the lathe frame, and the feed frame is slidably connected with the lathe frame. The deep hole drilling mechanism comprises two deep hole drill bits, a gas pulse assembly and a liquid pulse assembly, one deep hole drill bit is detachably connected with the feeding frame, gas-liquid through holes are formed in the deep hole drill bits, and the gas-liquid through holes of the two deep hole drill bits are communicated with the gas pulse assembly and the liquid pulse assembly respectively. The device has the beneficial effects that the idle lathe is transformed and upgraded, so that the production pressure of deep hole machining of parts is relieved, and on-time delivery of deep hole drilling products of part machining lines during peak seasons is ensured. The method is especially suitable for batch processing of non-ferrous metal and other materials and small-batch production of medium-carbon alloy steel.

The invention relates to a high-efficiency machining method for a stepped inner hole. The high-efficiency machining method comprises the following specific steps that firstly, the end faces of the two ends are flattened; (2) trepanning is conducted, specifically, a deep hole drilling and boring machine is installed, a trepanning cutter body with the diameter of 190 mm is used for trepanning a hole with the diameter of 190 mm from the right end of the workpiece, the length of the trepanning hole ranges from 45750 mm to 10 mm, and the diameter of a material core obtained after trepanning is 105 mm; the phi190 trepanning cutter body is withdrawn, and four inclined wood wedges are evenly distributed to stably support the material core; (3) drilling is conducted, specifically, the workpiece is turned around, and a hole with the diameter of 110 mm is drilled in a deep hole drilling and boring machine from the left end; (4) material core taking is conducted, specifically, after the deep hole drill is withdrawn, the material core automatically falls off, and the material core is taken out after the four inclined wood wedges are removed; the workpiece is turned around, after alignment is conducted with the outer circle of the workpiece as the standard, a hole with the diameter being 200 mm is bored from the right end on a deep hole drilling and boring machine, and an R25 arc is bored. According to the machining mode, tools and tools do not need to be frequently adjusted and replaced, the machining efficiency is improved, and material losses can be reduced.

The utility model relates to a double-shoulder self-sealing drilling and boring rod structure for a deep hole drill, which comprises a hollow rod body, a double-end double-shoulder external thread and a double-end double-shoulder internal thread, and the double-end double-shoulder external thread and the double-end double-shoulder internal thread are processed at two ends of the hollow rod body; the thread form is a rectangular square thread, the inner and outer thread ends adopt double shoulders, and an inner and outer thread small end sealing angle and an inner and outer thread large end sealing angle with 13-angle sealing surfaces are machined at the inner and outer thread small end and the inner and outer thread large end; the double-end double-shoulder external thread of one drilling and boring rod is screwed into the double-end double-shoulder internal thread of the other drilling and boring rod, and the whole drilling and boring rod is formed by end-to-end connection after tightening and screwing; the 13-degree sealing surfaces of the large end and the small end of the thread are attached to form an angle self-sealing surface; the rectangular threads of the drilling and boring rod transmit torque, the double-shoulder structure of the threads positions and enhances the strength of the threaded connector, the structure is simple, large torque can be transmitted, two shoulder faces can be sealed at the same time after screwing, and the problem of leakage of cooling liquid is solved.

The utility model relates to the field of supporting equipment, in particular to supporting equipment for a vertical machining center type deep hole drill. Comprising a supporting plate, the lower surface of the supporting plate is fixedly connected with a plurality of supporting columns, the upper surface of the supporting plate is provided with an adjusting structure, the adjusting structure comprises a sliding groove, the sliding groove is formed in the upper surface of the supporting plate, the inner wall of the sliding groove is rotationally connected with a lead screw, and the arc surface of the lead screw is provided with a bidirectional thread. One side of the supporting plate is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a lead screw, and the arc surface of the lead screw is in threaded connection with two sliding blocks. The supporting equipment for the vertical machining center type deep hole drill has the advantages that before drilling machining is conducted, the top plate can be conveniently adjusted to limit dies of different sizes, the dies of different sizes can be stably fixed when drilling machining is conducted, and the application range of the supporting equipment is widened.

The utility model discloses a multifunctional fixture for deep hole drilling, which comprises a base, a plurality of mounting seats are fixedly mounted at the bottom of the base, two clamping blocks are slidably mounted at the top of the base, and a bidirectional driving mechanism for driving the two clamping blocks to move reversely at the same time is mounted at the bottom of the base. The top of each clamping block is fixedly connected with a guide plate through a plurality of inner threaded pipes, long-rod bolts are installed at the top ends of the inner threaded pipes in a matched mode, the outer walls of the long-rod bolts are movably sleeved with pressing blocks, guide grooves are formed in the upper portions of the guide plates, and a plurality of guide rods are slidably arranged on the guide plates in a penetrating mode. Through the arrangement of the upper driving mechanism, the lower driving mechanism and the two clamping blocks, the bottom end of a workpiece can be fixedly clamped, the workpiece can be tightly pressed on the base through the pressing block through the cooperation of the inner threaded pipe and the long-rod bolt so as to ensure the fixing reliability of the workpiece, and through the arrangement of the clamping base, the roller and the like, the drill bit can be guided, and the machining precision is improved. The stability of the drill bit in the drilling process is improved.