688 results about "Drill bushing" patented technology

The invention relates to a method and device for placing implants (1) using a surgical template (11) which is made from tomographic cuts in the patient's jawbone (7). According to the invention, step drills (4) and calibrating drills (5), having a single standard diameter for each type of implant (1), are guided through drill bushings (18) which are inserted into bores (15) in the template (11) in order to produce any drilling sequence corresponding to an implant plan. The penetration depth of the drills (4, 5) is controlled by the height of the bores (15) or by the drill rings (21). The aforementioned template (11) bores (15) serve as a guide for the precise placement of the implants (1) owing to the adapted implant supports (3). Moreover, washers (23), which are mounted around the implant supports (3), limit compression in relation to the implants (1) while said implants are being placed (20). The above-mentioned characteristics serve to limit the required number of drills (4, 5) and implant supports (3) to the longest models only. The inventive method and device are particularly suitable for computer-assisted implantology systems.

A dental tool for guiding a drill bit during a dental implant procedure includes a pivotal drill bushing attached to a bushing holder. The bushing holder, in turn, is attached to a surgical dental stent that fits a patient's jaw. The bushing holder attaches to the stent by extending into a hole or bore of the stent. In some cases, the bushing holder snaps into the hole.

A method for a dental implant process involves creating an overall image that shows a trajectory of a drill bushing in relation to a patient's jaw. The overall image shows a trajectory image that represents the trajectory of the drill bushing and a jaw image that represents the jaw. The method allows a user to move the trajectory image relative to the jaw image, which can be useful when adjusting the angular position of the actual drill bushing.

A device for centering and guiding at least one drill bit of a dental handpiece when drilling a hole in the jaw of a patient in cooperation with a surgical guide equipped with a tubular drill bushing. A support holds a tubular guide sleeve permanently in a coaxial and sliding position with respect to the drill bit. The tubular guide sleeve is able to engage with slight play in the tubular drill bushing. The support insures the engagement of the guide sleeve in the tubular drill bushing at the latest when the drill bit starts to drill in the patient's jaw, thus insuring the centering and guiding of the drill bit.

The invention relates to a pipe fitting radial indexing drilling clamp tooling, which relates to a clamp tooling of a pipe fitting excircle drilling work procedure and solves the problems that each connecting hole on the existing pipe fitting excircle is processed by boring and milling equipment and precise numerical control equipment, and the mass production requirements cannot be met. A drill bush is arranged in each drill bush hole arranged in an indexing disc, each screw rod hole arranged in the indexing disc is matched with one pressing screw rod, in addition, one end of the pressing screw rod is connected with the screw rod hole through screw threads, the other end of the pressing screw rod passes through a press plate to be connected with a pressing screw nut through screw threads, a positioning pin is arranged in a first positioning pin hole, a copper bush is arranged in a copper bush installing hole, a middle shaft is arranged in a middle shaft installing hole and an inner hole of the copper bush, a middle shaft at one end of the copper bush is connected with a screw nut through screw threads, a middle shaft of one end of a first flange is connected with a fastening handle through screw threads, a positioning screw and a positioning threaded hole are connected through screw threads, an indexing pin is embedded in a second positioning pin, and a position limiting pin is arranged in a first position limiting pin hole and a second position limiting pin hole. The clamp tooling is used for processing each hole on the excircle surface of pipe fittings.

A tool for removing an object from a hole in a workpiece which includes a first and second arm pivotably connected together. Each arm having an opening between the ends. The second arm also has a drill hole at the second end. A liner bushing and a drill bushing can be provided in the drill hole. To remove the object from the workpiece, the drill hole is positioned over the object and the arms are adjusted until at least one (1) of the openings of one of the arms is positioned over an existing hole in the workpiece. A securing bolt is then inserted through the opening in the arm into the hole in the workpiece and tightened to secure the tool to the workpiece. Next, a drill bit is positioned in the opening of the drill bushing adjacent the object and rotated until the drill bit is completely through the object.

The invention relates to a drill press, in particular to a drilling table of a multidirectional tyre mould. The invention provides the drill press which has a simple structure and convenient use and is convenient to solve the problem of processing a micropore on a curved surface. The drill press comprises a supporting platform (1), an upper bedplate (2) and a supporting rod (3); a transverse movable shaft (4) is arranged on the supporting rod (3); the supporting rod (3) is provided with a lifting screw rod (5) parallel to the supporting rod (3); the outer end of the transverse movable shaft (4) is provided with a slope angle connecting plate (6); and the top end of the slope angle connecting plate (6) is provided with a universal drilling mechanism (5). The universal drilling mechanism (5) comprises a drill bush seat (16), a pneumatic drill (15), a drill sleeve (13), and an air pipe (14). With the structure, as the transverse movable shaft can move up and down and right and left, the upper bedplate can rotate to certain degree and is fixed by a stable pin; through rotation of the universal drilling mechanism, holes are drilled arbitrarily according to the design so as to realize the aim of drilling holes on different curved surfaces.

The invention discloses a numerical control inverted double-station deep hole drilling machine. The numerical control inverted double-station deep hole drilling machine comprises a double-station machine body component, wherein the rear table surface of the machine body component is fixedly and vertically provided with a left frame type upright post component and a right frame type upright post component; two frame type compressing components are connected with the left upright post component and the right upright post component respectively along a sliding plate up and down by taking a slide rail as a guide; the compressing components are provided with drill bushing assembly seats, drill bushings and hydraulic oil cylinders, so that workpieces can be positioned and clamped; the front table surface of the machine body component is fixedly provided with a left main shaft component and a right main shaft component; the main shaft of the main shaft components is provided with a special deep hole gun drill; both sides of the machine body component are fixedly provided with variable frequency speed regulation motors; and the variable frequency speed regulation motors are in transmission connection with the main shaft components through synchronous belts. An inverted structure that a drill is arranged on the lower side effectively improves the chip removal and the heat dissipation during the deep hole machining and improves the surface accuracy of parts at the same time. A left working unit and a right working unit can be alternately used in waiting time during operation, so that the production efficiency is improved.

The invention provides a drilling fixture for a cylinder cover, which can effectively improve positioning precision and clamping precision of a workpiece, accordingly guarantees machining precision of the workpiece, can greatly reduce labor intensity of workers, enhances production efficiency and lowers production cost. The drilling fixture comprises a bottom plate, and a fixing plate is vertically mounted on the bottom plate. The drilling fixture is characterized by further comprising a workpiece positioning and clamping device and a plate jig, the workpiece positioning and clamping device is fixed onto a workpiece clamping surface of the fixing plate, the plate jig is connected with the upper end of the fixing plate by a hinge device, and a drill bushing is correspondingly mounted on the plate jig according to a to-be-drilled position of the workpiece.

The present invention provides an automatic wheel rim online drilling device, comprising a frame, an air cylinder, a profiling drill jig, a drill bush, a servo electric cylinder, a drilling power head, etc. Firstly, a sensor enables a wheel to be positioned, and the air cylinder causes left clamping blocks to move rightward by two guide rods and guide sleeves so as to clamp the wheel jointly with a right clamping block; the servo electric cylinder causes a drilling system to move toward the wheel and the profiling drill jig can first come into good contact with the wheel rim and then the servo electric cylinder moves continuously to compress upper and lower springs so that the drill bit enters the drill bush, and at this time the drilling power head drives the drill bit to rotate, thus starting drilling on the wheel rim. By using the device of the present invention, X-ray rejects of wheels can be automatically marked by drilling, and the device can adapt to flow casting spun blanks with thick rims; and through orientation of the drill bush, the situation that the drill bit is frequently broken when drilling on the arc surface of the outer side of the wheel rim can be effectively avoided.

The invention discloses a processing method of an inclined hole on a blast furnace casing, and the processing method comprises the following steps that: a datum line for assembling the furnace casing and a projection line for a water tube on an assembling platform are drawn, and a straight drift eye is processed on a suitable position; a splicing operation of the furnace casing is performed; lines are drawn to show out the expanding shape of the inclined hole on the outer wall of the furnace casing; each inclined hole is marked on the outer wall of the furnace casing through the straight drift eye; a steel tube drill bush for a shoulder hole is made; the steel tube drill bush produced which keeps consistent with the inclined hole sample of the outer wall of the furnace casing according to the intersecting die then is welded on the corresponding position of the outer wall of the furnace casing; according to the projection line and the datum line for the cooling water tube drawn in step 1, the horizontal location of a tapping machine is fixed; a sliding bearing is made according to the size of the steel tube drill bush and the cog cutter of the tapping machine; the cog cutter of the tapping machine is threaded into the sliding bearing and then arranged into the steel tube drill bush, and then the sliding bearing is fixed with the steel tube drill bush or the furnace casing; the tapping machine is connected, started, and operated to finish the processing of an inclined hole.

The invention relates to a tool and a method for machining a crankshaft of a medium speed machine. The machining tool is provided with a cutter for machining a load release groove, a R40 special molding cutter for machining the surface of a balance block and a plug of a crossed hole of a drill gun. The machining method comprises: firstly, according to the prior method, a crankshaft billet of the medium speed machine is subjected to primary TR forging and molding; a main journal, a turning journal, the load release groove, the output end of the load release groove and a free end flange are subjected to machining; the milling balance block ,the shape of a turning arm, and end flange drilling are evenly distributed with holes and screw holes are subjected to machining; the main journal and the turning journal are ground and are subjected to final finishing; subsequently, the load release groove is processed through the cutter for machining the load release groove from outside to inside for a few times by delamination. The R40 special molding cutter is used to machine the surface of the balance block in a vertical cutting mode. The gun drill drills and cuts a guide hole and an oil hole to a crossed hole, and a plug is adopted in the crossed hole. A phi 700 flange hole is drilled through an aiguille and is machined through a Mohs lengthening drill bush. The tool and the method for machining can ensure the quality of a product and greatly improve production efficiency.

The invention belongs to the mechanical processing technology, and relates to a bias correction method of a drill bushing mounting hole of a drill plate. The method for correcting the drill bushing mounting hole comprises the following steps of: measuring a bias value of the drill bushing mounting hole; eccentrically chambering; installing a correction bushing; and installing a drill bushing provided with a correction bushing in the chambered drill bushing mounting hole. According to the bias correction method of the drill bushing mounting hole of the drill plate, a drill bushing does not need to be newly manufactured, thereby shortening the working period, improving the efficiency and meeting the requirement of nasty piece processing.

The invention provides a method for pulling a deep pile foundation by utilizing a full slewing drilling machine, comprising the following steps: a position for positioning the pile foundation is measured, and the full slewing drilling machine is fixed on the center of a drilled pile; after being well positioned, the full slewing drilling machine is utilized for drilling holes, and a first section of steel sleeve is drilled into the hole; in the process of utilizing the full slewing drilling machine for drilling the steel sleeve into the hole, a high pressure water gun is used for brushing a gap between the pipe wall of the steel sleeve and the pile foundation; after the drill bushing of the first section of steel sleeve is accomplished, the operation of drilling is stopped, a second section of steel sleeve is used for lengthening the first section of steel sleeve by connection, and the drilling of the entire steel sleeve is sequentially accomplished; and the operation of pile extraction is carried out when drilling is carried out to pile bottom. The technical scheme can reduce the frictional resistance in the process of drilling the steel sleeve into the hole, prevents soil bodies and water around pile bodies from flowing into pile bottom gaps after pile extraction, and reduces the influence on the ambient environment.

The invention discloses a drilling fixture which comprises a base, a positioning plate and a drill bushing. The positioning plate comprises a top plate and a supporting plate connected with one end of the top plate, the top plate is perpendicular to the supporting plate which is movably connected to the base, a vertical groove structure is formed between the positioning plate and the base, and the drill bushing penetrates the top plate and is arranged on the same. The drilling fixture has high flexibility, and processing of different parts can be realized by the same fixture. Since workpieces can be clamped by force from both the top surface and the side surface, the workpieces can be fixed firmly, and drilling quality is stable. Besides, the drilling fixture has a pneumatic locking effect, and accordingly is convenient and reliable.

The invention discloses a special lathe for drilling and boring a hole for a motor shell-like part. The special lathe comprises a frame, a spindle box, a chuck, a drill bushing, a drill bit, a combined tool, a middle sliding plate, a compressionng device and a positioning device, wherein one end of the frame is provided with the spindle box, and the other end of the frame is provided with the middle sliding plate; the chuck is arranged on the spindle box; the drill bit is arranged on the chuck through the drill housbushing; the combined tool is arranged in the drill bit; a workpiece is arranged on the compressionng device; the workpiece is positioned through the positioning device; the compressionng device is arranged on the middle sliding plate through a fastening screw; the positioning device is arranged on the middle sliding plate; and a spring is arranged in the positioning device. The defects of the prior art are overcome by the special lathe disclosed by the invention; the design transformation layout is reasonable. Through the combined tool, when the hole is processed, a process of drilling and boring the hole and a process of deburring end faces are completed simultaneously, and therefore, the efficiency and the processing precision are improved.