37results about How to "Simplify the drilling process" patented technology

Set of dental drills having two or more dental drills (10, 10′), each of dental drills (10, 10′) having a cutting portion (20, 20′) that has an end-face drilling end (22, 22′) and a shank portion (30, 30′) that has a receiving region (32, 32′) intended to be received in a drill holding device. The shank portions (30, 30′) of the dental drills each have a substantially circular-cylindrical guide region (40, 40′) for guiding the dental drills, the guide regions (40, 40′) of the two or more dental drills being of the same diameter.

A hydraulic unit for slip-controlled braking systems has a plurality of receiving holes for transport devices associated with a plurality of hydraulic circuits bundled into groups, wherein the receiving holes are disposed at a distance from each in parallel with the upper side and a drive shaft having eccentrics located at the plane spacing for driving the transport devices. In order to provide a compromise optimized for manufacturing a small, convenient hydraulic unit, it is proposed that three theoretical planes (E1, E2, E3) are arranged in parallel to the upper side, each receiving two V-shaped receiving holes for transport devices disposed at an angle to each other, and that the drive shaft includes three separate eccentrics for driving the transport devices.

The invention relates to a measuring head of a pneumatic instrument. The measuring head comprises a measuring head body including an air hole end and a ventilating hole end. Slotting is carried out in the air hole end; a pair of symmetric circular venting holes is formed in the slot; and an internal thread is formed in the groove in an annular hole. The ventilating hole end includes an external thread end and an air inlet port; slotting is carried out in the external thread end; and a through hole is formed in the air inlet port and extends to the external thread end and is communicated with the slot in the external thread end. In the prior art, hole drilling is carried out on a measuring head in an integrated entity mode and three holes are perpendicular to each other to form an inverted T shape; and when the measuring head is thickened and dimension of the measuring head is increased, the processing becomes difficult. Therefore, on the one hand, the opened air hole distance is reduced by separating the measuring head; and on the other hand, the thickness of the hole formed inside the measuring head is reduced. And thus the hole drilling process is simplified; and a problem that hole drilling needs the high drilling pressure can be solved.

The invention relates to a long-axis deep hole drilling device and method for removing chips through circulating water. The device comprises a lathe, a deep hole drill bit, a water inlet unit and a water drainage unit. The water inlet unit is composed of a water inlet device and a first feeding device. The water drainage unit is composed of a water drainage pipe and a second feeding device. The water inlet device comprises a shell, a rotary water inlet barrel, a front end sleeve and a wedge-shaped sealing sleeve. The first feeding device and the second feeding device can both conduct feeding movement in the longitudinal direction of the lathe. According to the long-axis deep hole drilling device and method, the drilling procedure is simplified, a good effect is achieved on deep hole drilling of long-axis parts, and the drilling precision, coaxiality and in-hole surface roughness can be guaranteed; and the problem of poor sealing performance of a circulating water path of existing deep hole drilling equipment is solved, and the chip removal capacity during drilling is greatly improved.

The invention discloses drilling equipment for electronic device machining, and relates to drilling equipment. A machining bottom plate is included. A first rotation rod is rotationally connected to the left side of the machining bottom plate in a front-back symmetry manner. An equal-length second rotation rod is hinged to the middle portion of the first rotation rod. The lower end of the second rotation rod is rotationally with a first limiting sliding rod. A first limiting sliding groove is formed in the right side of the lower portion of the machining bottom plate and is in sliding connection with the first limiting sliding rod. A top plate is rotationally connected to the top of the second rotation rod. A second limiting sliding groove is formed in the right side of the top plate. Thetop of the first rotation rod is rotationally connected with a second limiting sliding rod which is in sliding connection with the second limiting sliding groove. The drilling equipment is simple in structure and convenient to use; during usage, the drilling process can be simplified, drilling can be conducted without accurate manual device positioning; the device drives a drill bit to descend fordrilling through downward pressing of the top plate, an electronic device is accurately positioned in the top plate descending process, and the drilling efficiency is effectively improved.

The invention relates to a drilling rod applicable to small-well-hole and large-displacement well drilling. The drilling rod does not need to be subjected to procedures of pulling out the drilling rod, piling a support and inserting an oil pipe, a petroleum drilling process is simplified, the petroleum drilling efficiency is improved and the cost is saved; meanwhile, a secondary shoulder is additionally arranged at an engaged part of a male buckle small end and a female buckle large end; the secondary shoulder and a main shoulder form a double-shoulder structure; a main shoulder face and a thread section have certain interference fit and the secondary shoulder just has a certain auxiliary upper buckle positioning function, so that the interference fit between the main shoulder face and the thread section is accurately realized; and furthermore, the secondary shoulder can also bear one part of load at a working state and has certain overload protection effect, and the anti-torque strength of the drilling rod can also be improved and the safety of the drilling rod is guaranteed.

The invention relates to the technical field of circuit board production, in particular to a drilling machine table top and a drilling machine. The drilling machine table top comprises a workbench, astretchable device and a vacuum adsorption device, one end of the stretchable device is fixed on the workbench, the other end of the stretchable device is used for bearing a circuit board, the stretching and retracting direction of the stretchable device is perpendicular to the workbench so as to support the circuit board, then a bottom supporting space is formed between the circuit board and theworkbench, the vacuum adsorption device is used for being in butt joint with the bottom surface of the circuit board so as to enable the circuit board to be adsorbed and fixed to the stretchable device. According to the provided drilling machine table top, the bottom supporting space can be formed between the circuit board and the workbench through the stretchable device, then bottom supporting extracting and conveying of the circuit board are facilitated, the higher reliability is achieved, moreover, the problem that a structure layer of the circuit board is not flat is solved, the structureis simple, the operation is convenient, moreover, the cost is low, and the development prospect is good.

The invention discloses a full-section hydraulic blasting demolition method for an urban viaduct. The method comprises the following steps: adding a built-in reserved hole design and a groove design; manufacturing and fixing a matched formwork to a bridge steel reinforcement framework through vertical pre-buried pipelines of stand columns, beams and plates of a bridge, and pouring concrete for one-time forming, wherein built-in large pre-buried holes are used for draining water, and the three small pre-buried holes are used for arranging lighting and communication lines and traffic monitoring cables; dismantling cables arranged in the three pre-buried small holes of each pier of the viaduct and using thes mall holes as compensation holes; performing explosive charging, networking, protecting and detonating, and using a high-precision delay detonator for controlling the detonating sequence of each bridge pier blasting point and a box girder water pressure blasting point; and when the viaduct continuously collapses span by span, dividing each section of box girder into three parts to collapse. According to the method, the blasting demolition drilling construction procedure is reduced, the drilling cost is reduced, the harmful effects of noise, dust and the like are reduced, the environmental protection property is high, the construction period is short, and the cost is low.

The invention relates to a control pressure casing drilling method for underground containing formation injection pressure. The problems that the yield and the three-production development effect are affected during drilling, closing and updating of an existing three-production casing damage well, and drilling safety is affected when drilling and closing are not conducted are mainly solved. The method is characterized by comprising the steps of drilling a well, cementing the well, installing pressure control drilling equipment and testing pressure; secondly, drilling a well in a non-oil-layer section, testing a hydraulic pressurizing anti-deviation tool, and recording the pressure of a vertical pipe and the pump displacement in the process; drilling in a second-opening casing drilling section, and performing second-opening well cementation; and logging. By the adoption of the drilling method for the control pressure casing pipe containing the formation injection pressure underground, a renewal well can be drilled under the condition that the well is not stopped, the injection-production relation of a casing damage well group can be completed in time, injection of a drilling area is not affected, and the normal block development effect is guaranteed.

The invention discloses an automatic identification method for a laminated interface during laminated structure drilling. The method has the advantages of measuring and recording an idle rotation speed n0 of a drilling equipment spindle; obtaining a function expression of Td=f(n) of an output torque Td of the drilling equipment spindle with respect to the rotation speed n of the drilling equipmentspindle by experiment and mathematical fitting; deriving a formula of Td=g(n,m,k) for calculating the torque by using the formula; combining two equations to obtain an equation of f(n)=g(n,m,k); determining the corresponding coefficient of mi(i=1,2,3...) for each material, determining other processing parameters except the rotation speed of the drilling equipment spindle, and obtaining the corresponding coefficient ka; solving the rotation speed ni (i = 1, 2, 3...) of the drilling equipment spindle corresponding to different materials; during drilling processing, measuring the real-time rotation speed na of the drilling equipment spindle, comparing na with n0 and ni one by one, and finding a value closest to na, wherein if the value is closest to n0, a cutter does not touch a workpiece orcuts through the workpiece, and if the velue is closest to ni, the drilling equipment processes the workpiece material corresponding to Ni. The method has the advantages of simplifying the drilling operation process, shortening the processing time and the like.