7301results about "Boring/drilling machines" patented technology

A stop for use with an electric drill bit, the stop having at least one threaded sleeve for positioning the stop relative to a surface into which the drill bit will extend. The stop may have both an inner and an outer sleeve. The sleeves are mounted coaxially, one inside the other about the drill bit. One of the sleeves, preferably the inner sleeve, provides coarse adjustment of the position of the shoulder relative to the tip of the bit, while the other, preferably the outer sleeve, provides fine adjustment of the position of the shoulder relative to the top of the bit.

The present invention relates to the technical field of drilling machines. Disclosed is a numerical control vertical drilling machine having an automatic chip removal function. The numerical control vertical drilling machine comprises a console. A workbench is mounted at the upper end of the console; a vertical plate is connected to the upper end of the console, and a moving frame is slidably connected to the side wall of one side of the vertical plate; a lifting / lowering assembly for driving the moving frame to move in a vertical direction is mounted on the vertical plate; a movable plate is slidably connected into the moving frame, and a moving assembly used for driving the movable plate to move horizontally is mounted in the moving frame; a machining head is mounted at the lower end of the movable plate; and a mounting bracket having an L-shaped section is connected to the side wall of one side of the console. The defects in the prior art are overcome in the present invention, and by means of mutual cooperation of structures such as the console, the workbench, the moving frame, the movable plate, the machining head, a cylinder, a moving plate, a first electric push rod, a cleaning brush, a motor, a lead screw, and a second electric push rod, chips generated after part machining can be automatically cleaned, so that the burden of cleaners is relieved, thereby improving the applicability of a device.

The present invention belongs to the technical field of machining and punching, and in particular relates to a surface pressurized punching device for anode plate machining. The surface pressurized punching device comprises a workbench of a table structure, a machine unit mounted on one side of the workbench, and a rack welded to the table top of the workbench, wherein an operation platform is fastened to the table top of the workbench and inside the rack by means of bolts, and clamping plates which are oppositely arranged are slidably mounted on two sides of the surface of the operation platform; and a hydraulic cylinder is mounted at the center of the surface of the rack, and an output shaft of the hydraulic cylinder running into the rack is fixedly connected to a drill rod by means of a coupler. By means of providing a reaming assembly, an electric motor B is controlled by an external power supply to operate while the hydraulic cylinder drives the drill rod to move, such that the electric motor B drives, by means of a gear A and a chain, a gear B to rotate synchronously while the electric motor B moves with the drill rod by means of an outer frame, thereby driving the drill rod to rotate. Thus, the surface of the drill rod can rotationally grind and finish holes in an anode plate while the drill rod performs drilling, thereby reducing burrs.

The invention relates to the technical field of drilling equipment, in particular to drilling equipment for automobile brake disc production, which comprises a support, an air cylinder and a mounting table, and an electric control drill bit is arranged on the bottom surface of the mounting table. The second rotating disc slides in a second abutting groove through a second abutting block fixed to the inner side of the second rotating disc when moving downwards along with the first rotating disc, stable rotation of the second rotating disc is guaranteed, the second rotating disc and the first rotating disc rotate coaxially, a second arc-shaped groove is formed in the surface of the second rotating disc, and the second arc-shaped groove is matched with the second arc-shaped groove. The circular block at the bottom of the positioning block close to the center of the connecting disc is inserted into the arc-shaped groove II. When the second rotating disc rotates, the second arc-shaped grooves push the positioning blocks to move along the sliding grooves so as to adapt to the inner diameter size of the brake disc, and therefore multi-point positioning can be conducted on the inner diameter and the outer diameter of the brake disc at the same time, and the clamping stability is improved.

The invention relates to the technical field of anchor plate drilling, and discloses a wind power generation anchor plate drilling device which comprises a machine tool body, a drill bit and a storage box, and a fixing mechanism is arranged on the inner wall of the bottom of the machine tool body. During use, firstly, an anchor plate is fixed through the fixing mechanism, after drilling operation is finished, drill bits are stored in the storage box, the drill bits with different diameters are matched through the extrusion assembly, and a rotating ring and a square block are driven to achieve the horizontal movement function; chippings on the surface of the drill bit can be cleaned through the cleaning assembly, so that the cleaning effect is achieved, when the square block and the rotating ring horizontally move towards the outside of the square groove, lubricating oil can be smeared on the surface of the drill bit through the smearing assembly, and the lubricating and maintaining effects are achieved. By means of the arrangement, the drill bit can be conveniently cleaned, maintained and repaired, overall operation is convenient and fast, and the using effect is good.

The invention relates to the technical field of machine tool machining, and discloses drilling equipment and a drilling process for nozzle pin hole machining, the drilling equipment comprises a support and a base, a drilling device and a lifting device are arranged on the support, a conveying device and a positioning device are arranged on the base, and a feeding conveying table and a discharging conveying table are arranged on the two sides of the base respectively; the drilling device comprises a control source, a plurality of drill bits and an adjusting part used for adjusting the positions of the drill bits, the lifting device comprises a first threaded rod and a transmission part, and the conveying device comprises a conveying belt and a moving part used for controlling the position of the conveying belt on the base. According to the drilling machine, the positions of the multiple drill bits are adjusted through the arrangement of the adjusting piece, workpieces are carried through the arrangement of the conveying belt, and therefore rapid machining and carrying of the workpieces are achieved, and the problems that when different workpieces are machined through a traditional drilling machine, matched cutter heads need to be frequently replaced, and the machining efficiency is high are solved. And machined workpieces need to be grabbed and placed through a mechanical arm, operation is complex, and the machining efficiency is affected.

The invention relates to the technical field of machining, in particular to double-angle machining self-made five-axis equipment which comprises a machining table and a machining assembly, and the machining assembly comprises a four-axis rotary table, a rotary table tailstock, an overturning piece, a five-axis rotary table, a tool plate, a plurality of clamping pieces, a transverse moving piece, a lifting structure, a bearing frame, a front-back adjusting piece and a machining equipment assembling table. According to the hole machining requirements, the four-axis rotary table is controlled to be matched with the rotary table tailstock to drive the overturning piece to overturn front and back, the front-back angle of the mechanical part assembled on the tool plate is adjusted, then the five-axis rotary table is controlled to drive the tool plate to rotate, the left-right angle of the mechanical part is adjusted, and then double-angle adjustment of the mechanical part can be completed. Therefore, the problems that according to existing drilling equipment, double-angle hole machining can be achieved only through two pieces of equipment or two pairs of special angle clamps, the requirement for the manufacturing precision of a tool is high, and angle adjustment is very difficult in the using process are solved.

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 relates to the technical field of flange drilling machining, in particular to a valve flange drilling device which comprises a drilling platform and further comprises a feeding station, a feeding station, a drilling station and a discharging station which are installed on the drilling platform. The feeding station comprises a rotating disc, a material containing groove and an arc-shaped supporting beam. The turntable is rotationally mounted on the drilling platform; a plurality of material placing grooves penetrating along the thickness of the turntable are distributed on the circumference of the turntable at equal intervals; wherein the material containing groove is used for containing a flange workpiece, and the depth of the material containing groove is consistent with the thickness of the flange workpiece; the arc-shaped supporting beam is fixedly installed in the drilling platform, the top end face of the arc-shaped supporting beam is attached to the bottom end face of the rotary disc in a sliding mode, and the arc-shaped supporting beam is used for supporting the flange workpiece in the material containing groove. One end of the arc-shaped supporting beam is located below the feeding station, and the other end of the arc-shaped supporting beam is located on one side of the discharging station. Through the arrangement of the feeding station, a flange workpiece at the feeding station can be conveyed to the drilling station for drilling, and finally the drilled flange workpiece is conveyed to the discharging station for outputting, so that the actions of automatic feeding, drilling and discharging are realized, and the working efficiency of flange machining is improved.

The invention belongs to the field of container corner fitting machining application equipment, and particularly relates to boring equipment for container corner fitting machining. Comprising a rotating disc and a corner fitting fixing station arranged on the rotating disc, the position of the corner fitting fixing station is changed through the arrangement of the rotating disc, and the placement angle of the corner fitting fixing station is changed through the arrangement of a driving cylinder, an upper coupler, a lower coupler, an electromagnetic push rod and an overturning shaft; therefore, the boring surface of the container corner fitting can be automatically turned over, the container corner fitting can be automatically bored, the labor intensity is reduced, and the production efficiency is improved.

The invention provides a track board drilling parameter intelligent optimization method and system based on deep learning, and relates to the technical field of deep learning, and the method comprises the steps: recognizing a feature region in three-dimensional scanning data through a deep learning semantic segmentation network, building a local coordinate system, calculating hole site deviation, constructing a pose correction field, and achieving the intelligent correction of drilling process parameters. And an optimal drilling track is generated by using a state space search algorithm. The method can adapt to actual geometric errors of the track plate, the drilling precision and efficiency are improved, the drilling failure rate is reduced, and the manufacturing quality of the track plate is improved.

The utility model discloses a planing table milling and boring machining center work fixture which comprises a base, a groove is formed in the bottom of the base, a motor is fixedly connected to the inner wall of the groove, a driving bevel gear is fixedly connected to the tail end of an output shaft of the motor, the driving bevel gear is meshed with four driven bevel gears, and the driven bevel gears are meshed with the driven bevel gears. And each driven bevel gear is coaxially and fixedly connected with a threaded rod, the outer wall of each threaded rod is sleeved with a moving plate in threaded connection with the threaded rod, each moving plate penetrates through the base and is in sliding connection with the base, and each moving plate is provided with a clamping mechanism. One end of a workpiece can be clamped and fixed through the planing table milling and boring machining first clamping block, the middle of the workpiece can be clamped and fixed through the planing table milling and boring machining second clamping block, and the workpiece is stabilized through double fixing; a workpiece is automatically placed on the tool clamp and detected by the pressure sensor, so that the motor is started to realize automatic clamping, and the machining efficiency is improved.

The invention relates to the technical field of gang drills, in particular to a numerical control gang drill device which comprises a machine tool body, a telescopic assembly is arranged in the machine tool body, the output end of the telescopic assembly faces downwards and is connected with an extrusion block, and a storage plate is arranged at the position, below the telescopic assembly, in the machine tool body. One side of the machine tool body is connected with a gang drill plate through an air cylinder, and the side, facing the machine tool body, of the gang drill plate is evenly connected with a plurality of through drill seats. According to the device, a second clamping block and a first laser distance measuring sensor are arranged, the first laser distance measuring sensor can detect the distance value between a drill bit and an extension block at different positions of the drill bit, and the distance value between the drill bit and the extension block can be detected in the mode that the drill bit rotates; the detected distance value is uploaded to a background control system to be compared with a standard data value, and if the detected data value exceeds a standard data value interval, it is indicated that the drill bit deforms.

The invention relates to the technical field of hardware machining, and discloses a drilling machine for precise hardware machining and a using method thereof.The drilling machine comprises a containing table, a connecting frame is fixedly connected to the top of the containing table, two clamping blocks are slidably connected to the top of the containing table, and an electric telescopic rod is started to push a sliding block to descend; when a workpiece is drilled, a rotating rod and a drill bit descend to be close to the workpiece, meanwhile, a motor is started to drive a second belt wheel to rotate, a transmission belt rotates, the rotating rod and the drill bit rotate to drill the workpiece, meanwhile, when the rotating rod rotates, a round ball rod can rotate around the center of a fixed circular ring, the round ball rod can incline, and a first connecting ring can be pulled by the round ball rod; the first connecting ring is moved downwards to descend, so that an extrusion ring descends, an extrusion plate descends, cooling liquid in a liquid storage tank is extruded, the extruded cooling liquid is sprayed out through a communicating hole to flush the surface of the drill bit, and therefore chippings attached to the surface of the drill bit are reduced, and the abrasion speed of the drill bit is effectively reduced.

The invention relates to a cleaning structure of a radial drilling machine, and belongs to the technical field of cleaning devices of radial drilling machines. The device comprises a cleaning assembly and a collecting assembly, the cleaning assembly comprises a top pushing part, and the top pushing part is used for being installed on the top of a workbench in a left-right sliding mode; the collecting assembly comprises a collecting box with an open top end; the cleaning assembly further comprises a side pushing piece, the side pushing piece is fixedly connected with the top pushing piece, and the side pushing piece is used for being installed on the front side of the workbench in a left-right sliding mode. The collecting box is used for being installed in an inner cavity of the workbench in a left-right sliding mode, and a feeding hole is formed in the front side wall of the collecting box. The collecting assembly further comprises a guiding piece, the guiding piece is used for being installed on the right side wall of the workbench and located in front of the collecting box, the guiding piece is provided with a guiding face, and the guiding face inclines downwards from front to back. The top and the side portion of the workbench can be cleaned at the same time, cuttings falling from the side portion can be collected, and the cuttings cleaning and collecting effect is better.

The invention discloses a valve drilling and boring device, and relates to the technical field of drilling devices, through use of a protection assembly, a supporting base is included, splashed cooling oil and metal filings can be blocked by the inner wall of a protection shell, and due to the fact that the cooling oil is sprayed to the inner wall of the protection shell and the area of the inner wall of the protection shell is large, the surface area is increased when the cooling oil is spread; the boring frame rotates to drive an oil scraping rod to rotate, the oil scraping rod scrapes the cooling oil and metal filings adhered to the inner wall of the protective shell, the cooling oil and the metal filings fall down from an oil discharging opening, and the effects of accelerating heat dissipation of the cooling oil and accelerating circulation of the cooling oil are achieved; the situation that the temperature of the cooling oil is too high due to the fact that the cooling oil is directly recycled and heat dissipation is difficult in the traditional situation is avoided, the cooling oil is sprayed on the inner wall of the protection shell to increase the heat dissipation area, and the cooling oil is scraped and recycled through the oil scraping rod after heat dissipation, so that it is guaranteed that the cooling oil can be fully dissipated; and the cooling oil is actively scraped and recycled to accelerate the circulation of the cooling oil.

The invention relates to the technical field of machining, and discloses drilling equipment with an auxiliary positioning function, which comprises a workbench, a multi-station continuous drilling mechanism, two groups of concentric positioning mechanisms and a synchronous conveying mechanism, a bottom cavity is fixedly formed in the bottom of the workbench, a plurality of bases are fixedly arranged at the bottom of the bottom cavity, the synchronous conveying mechanism is arranged on the left side of the top of the workbench, and the multi-station continuous drilling mechanism is arranged in the middle of the top side of the workbench. The concentric positioning mechanisms are arranged on the two sides of the multi-station continuous drilling mechanism. According to the drilling equipment, the drill bit can be pushed to move towards the outer wall of the pipeline while rotating through movement of the conical barrel, multi-station synchronous drilling is conducted on the pipeline, at the moment, the spring is compressed, elastic force in the opposite direction is generated, and when the movable seat moves in the opposite direction, the drill bit is reset under the action of the spring. The drilling synchronism of the pipeline can be guaranteed, and the drilling efficiency and precision are improved.

The invention relates to the technical field of plate punching, and discloses a plate punching device for mechanical part manufacturing, which comprises a base, the top of the base is fixedly connected with a vice, the top of the base is fixedly connected with a supporting column, the outer wall of the supporting column is slidably connected with a sliding frame, and the side wall of the sliding frame is slidably connected with a sliding table. A fixing cylinder is rotatably connected to the bottom of the sliding table, after a plate is fixed by a user, a drill bit is made to rotate through a supporting assembly and a driving assembly, the plate is drilled till a spring reset rod is pressed to make contact with the bottom of an arc-shaped telescopic sleeve, the edge of a hole is extruded by a conical scraper, burrs on the edge of the hole are scraped away, and the plate is fixed through a fixing cylinder. The drill bit and the conical scraper rotate synchronously to fit the edge of a hole and remove burrs on the edge of the hole, so that the problem that the center of the hole is difficult to align when a cutter is replaced to remove the burrs after drilling is completed is effectively prevented, and synchronous drilling and deburring is realized.

The utility model relates to the technical field of motor stator and rotor punching sheet punching, in particular to a motor stator and rotor punching sheet punching device which comprises a machining table, a supporting frame is fixedly installed on the top of the machining table, and a rotating disc used for placing a motor stator and rotor punching sheet is arranged on the portion, below the supporting frame, of the machining table. A driving part used for driving the rotating disc to rotate is arranged in the machining table, a pressing assembly used for fixing the motor stator and rotor punching sheet is arranged at the top of the supporting frame, the pressing assembly further comprises a discharging part used for discharging, on one hand, the motor stator and rotor punching sheet can be fixed when being punched, and on the other hand, the motor stator and rotor punching sheet can be fixed; and on the other hand, stable punching can be ensured under the action of the spring, the situation of accidental movement is prevented, the effect of automatic discharging is achieved, and the machining production efficiency of the stator and rotor punching sheets of the motor can be effectively improved.

A lift device includes a chassis, an implement interface configured to be removably coupled to an implement, and a lift assembly coupled to the chassis and the implement interface. The lift assembly is configured to raise the implement interface relative to the chassis. The lift device includes an implement sensor coupled to the implement interface and configured to detect whether the implement is coupled to the implement interface. The lift device includes a controller operatively coupled to the lift assembly and the implement sensor. The controller is configured to adjust operation of the lift device in response to the implement sensor detecting that the implement is coupled to the implement interface.

The invention discloses a drilling device and method for greenhouse steel pipe production, belongs to the technical field of steel pipe drilling, and provides the following scheme that the drilling device comprises a drilling mechanism, and a drilling auxiliary mechanism is arranged in the drilling mechanism; the drilling assembly moves downwards, a pulley moves along with the drilling assembly and extrudes an inclined plane between the pulley and a sliding rail, a first piston rod moves, an elastic supporting assembly is hydraulically driven to move, a supporting head enters a steel pipe fitting, the steel pipe fitting can be limited by the supporting head, and meanwhile an inner cavity of the steel pipe fitting is full of the supporting head; secondly, the elastic supporting assembly further drives the toothed bar and the clamping assembly to conduct transmission, so that the clamping assembly clamps and fixes the steel pipe, then extrusion movement between a pulley and a sliding rail is adopted, acting force can be converted through hydraulic pressure, and therefore the steel pipe can be clamped and fixed; and the toothed bar smoothly drives the clamping assembly to complete automatic positioning of the steel pipe fitting, so that the purpose of efficient operation is achieved.

The boring and milling device comprises a boring rod, a boring cutter and a cutting fluid nozzle, a vibration suppression cavity is formed in the end, close to the boring cutter, of the boring rod, a vibration suppression cylinder is arranged in the vibration suppression cavity in a clearance mode, and the two ends of the vibration suppression cylinder are both connected with rubber sleeves; one rubber sleeve is communicated with a cutting fluid nozzle, and the other rubber sleeve is communicated with an external cutting fluid source; a supporting rod is arranged on one side of the end of the boring rod, and a rotating wheel used for abutting against the hole wall of a boring hole of a to-be-machined workpiece is rotationally arranged at the end, away from the boring rod, of the supporting rod. A discharging auger arranged in the length direction of the boring rod is rotationally arranged on the supporting rod, and a power assembly used for driving the discharging auger to rotate so as to discharge cuttings on the side, away from the boring cutter, of the boring rod is arranged on the supporting rod. Cuttings are discharged through the discharging auger to be away from the area where the boring cutter is located, and the influence of the accumulated cuttings on the cutting effect of the boring cutter can be reduced; the vibration suppression cylinder is flexibly connected with the boring rod through the rubber sleeve, and the chatter phenomenon of the boring rod can be suppressed or eliminated.

The invention discloses a rapid positioning and punching device and method for a precision die, and relates to the technical field of precision die and die casting machining equipment. The device comprises a workbench and an air floatation-vibration suppression and vacuum pre-fixing integrated platform at the bottom of a positioning groove of the workbench, and the air floatation-vibration suppression and vacuum pre-fixing integrated platform can be switched between a vacuum adsorption pre-fixing mode and an air floatation vibration suppression mode. Y-axis modules are arranged on the two sides of the workbench and drive the X-axis module and the Z-axis lifting mechanism to move. The intelligent drilling unit adopts an inner cooling type drill bit with a built-in phase change microcapsule, and the position error is compensated in real time through a laser interferometer. The method integrates the devices and sequentially comprises the steps of workpiece vacuum pre-fixing, air floatation vibration suppression, self-adaptive balanced clamping, vision and laser composite positioning, drilling and phase change self-cooling, laser dynamic error compensation and the like. The problems of positioning drifting, short service life of a drill bit and clamping unbalance during drilling of high-hardness die steel and large die castings (such as electric control boxes of new energy automobiles) are effectively solved.

The automatic punching device for automobile brake disc machining comprises a workbench, a feeding mechanism used for automatic feeding is arranged at the top of the left side of the workbench, an annular sliding rail is fixedly installed in the center of the top of the workbench, and a plurality of first limiting sliding blocks are slidably connected to the annular sliding rail; according to the automobile brake disc punching device, symmetrical punching is carried out on an automobile brake disc through two cutting punching machines on the symmetrical drilling mechanism, the punching efficiency is high, during punching, an inserting rod is inserted into a limiting sleeve, the cutting punching machines are limited and fixed through the limiting sleeve and the inserting rod, and the punching efficiency is high; the cutting perforating machine has the advantages that the problem that the cutting perforating machine deflects during perforating is avoided, perforating quality is improved, an inserting rod can press a bottom plate downwards every time the inserting rod is pressed downwards, air in an air bag is blown out from an air blowing pipe when the inserting rod ascends, the top of the automobile brake disc is blown to remove chippings while pressing downwards, and manual cleaning with an air gun is not needed.

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 provides a piston machining drilling clamp and belongs to the technical field of piston machining, the piston machining drilling clamp comprises a machine tool and a machining table arranged on the machine tool, a piston is placed on the machining table, a clamping assembly used for fixing the piston is arranged on the machining table, and a supporting mechanism is arranged at the bottom of the piston. The supporting mechanism comprises two sets of supporting plates arranged at the bottom of the machining table, guide plates are slidably arranged on the supporting plates, and supporting cylinders are rotatably mounted on the guide plates; by arranging the supporting mechanism, precise positioning of the piston pin hole can be achieved, a stable machining reference is established, stable supporting of the pin hole is achieved through the synergistic effect of the multiple sets of supporting blocks, deformation of the pin hole due to different cutting forces is prevented, the supporting assembly can gradually retreat along with drilling, the supporting blocks always keep stable clamping force, and the machining precision of the piston pin hole is improved. And it is ensured that the hole wall is stressed in a balanced mode in the whole drilling process, and temporary deformation is avoided.

The invention relates to the technical field of five-axis machine tool drilling, in particular to a clamping device for wing hanging drilling operation and a laser measurement drilling system. A first middle assembly and a second middle assembly are detachably and fixedly connected with corresponding rotary tables; the second middle assembly is provided with an end plate extending front and back, and two sets of connecting areas spaced front and back are formed on the end plate. The clamping device further comprises a compensation insertion piece, and the compensation insertion piece can be selectively inserted between the first middle assembly and the first connecting lug and can also be selectively inserted between the connecting area and the rotary table so as to compensate the fluctuation quantity of the corresponding distance. The clamping device has the beneficial effects that through multiple technical means such as structure reuse, rotation reference unification, spacing compensation mechanism and assembly process optimization, high-precision, high-efficiency and high-stability indexing drilling clamping of the wing hanger is achieved, and then the drilling efficiency and the drilling precision are improved.

A power tool stand comprises a base; a projecting frame connected to the base; and a power tool carriage moveably mounted on the projecting frame. The power tool carriage comprises a first interface arranged to electrically connect with a removeable power tool and a second interface in electrical connection with the first interface and arranged to electrically connect with a removeable battery.

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.

A two-hole core drilling machine of the invention includes a body, a vertically reciprocating carriage vertically reciprocably mounted to the body, a fixing plate coupled to one side surface of the carriage, to rotatably support a drive shaft of a motor, a pivoting plate fastened to the fixing plate under a condition that a pivot angle of the pivoting plate is changed, a moving plate fastened to the pivoting plate under a condition that a length of the moving plate from the pivoting plate is varied, a belt or chain mounted between a drive pulley coupled to the drive shaft and a driven pulley coupled to a driven shaft rotatably mounted to the moving plate, a first core bit coupled to the drive shaft, and a second core bit coupled to the driven shaft.