154results about How to "Guaranteed drilling accuracy" patented technology

The invention belongs to the technical field of pipe whip restraint steel structures of main power houses of nuclear power station conventional islands, in particular to a production process method of the pipe whip restraint steel structure of the main power house of the nuclear power station conventional island, which comprises the lofting process, the marking-off and scribing process, the cutting processing process, the bevel processing process, the hole-making process, the correction process, the polishing surface, the material splicing process, the pre-splicing process of a steel member, the assembly process, the processing process of a friction surface, the welding process of the steel structure and the anti-slip test of the friction surface of the steel member before leaving a factory, sandblasting, derusting and coating of a base coat are carried out in the factory, and the production of the steel structure is divided into the production processing of a welded H-shaped steel column, the production of a steel beam, the assembly and the welding of a support part, the production of a combined steel beam, the assembly and the welding of a girder box body and an inclined support below the girder box body, and the assembly and the welding of a pipe whip restraint key. The production process method can improve the drilling precision, utilize a numerical control planar drilling machine to complete the drilling on a gusset plate, determine a variety of processing processes and welding process parameters, and ensure the dimension of the member after the assembly and the smooth proceeding of field installation.

The invention discloses a high-precision electric drill capable of conducting positioning. The high-precision electric drill comprises a shell, a drill bit, a motor and a transmission mechanism, wherein the motor and the transmission mechanism are arranged in the shell, the drill bit is connected with the motor in a transmission mode through the transmission mechanism, a sleeve is arranged on the shell, a positioning rod is arranged in the sleeve, the positioning rod and the sleeve are vertically connected in a sliding mode, and a positioning piece can conduct positioning on the surface of a workpiece is arranged at the lower end of the positioning rod. When the high-precision electric drill is used, the positioning rod is installed near a hole to be machined first, switch-on of a motor power supply is subjective to to-be-machine hole coverage achieved by the shallow, on the surface of the workpiece, of the drill bit, the sleeve arranged on the positioning rod in a sleeving mode plays a role in guiding the drill bit, and therefore the accuracy of the drilling position and the perpendicularity of a hole are ensured.

The invention discloses a double-arm four-drill drilling, anchoring and loading integrated machine. The double-arm four-drill drilling, anchoring and loading integrated machine comprises two drilling arms (8), one excavation work arm (9) and a scraper conveying groove (10), wherein a long sliding rack (4) and a short sliding rack (11) are arranged on each drilling arm, a rock drill (3) for drilling a roadway head-on blasthole and a water and gas exploring engineering hole is arranged on the long sliding rack, a jumbolter (18) for drilling an anchor bolt hole or an anchor rope hole in a roofing and two roadway sides is arranged on the short sliding rack, the drilling arms are connected with the long sliding rack and the short sliding rack by a connecting mechanism, the connecting mechanism comprises a front-rear screw swinging mechanism (7) connected with the drilling arms, a support base (5) is arranged at one end of the front-rear screw swinging mechanism, the long sliding rack is movably connected with the support base by a connecting base (6), a cantilever support (15) with adjustable height is arranged at one side of the support base, and a horizontal screw swinging mechanism (14) is arranged on the cantilever support. The double-arm four-drill drilling, anchoring and loading integrated machine has complete drilling function, can perform excavation, loading and deslagging and has wide operation range.

The invention discloses a drilling device for an earthen archaeological site. The drilling device is characterized in that a bottom plate is mounted on the upper surface of a slideway through two groups of bottom plate rollers; a pair of round guide rails is fixed on the bottom plate, and a motor mounting plate is mounted on the round guide rails through sliders; a gear motor is fixed on the motor mounting plate; a rotating connector is mounted on an output shaft of the gear motor in a sleeving manner; one end of a connecting sleeve is fixedly connected with the rotating connector through a flange, and the other end of the connecting sleeve is in sleeve joint with one end of a drill rod through threads; the other end of the drill rod is connected with a drill; and the drilling rod, the round guide rails and the slideway are parallel. According to the drilling device for the earthen archaeological site, when a drill tube penetrates into the earthen archaeological site continuously, a drill rod jacket arranged on the drill rod in a sleeving manner goes deep into earth mass with the drill rod and is supported on the earth mass through a drill rod support frame, further, the drill rod jacket can move forwards continuously with the drill rod, so that the drill rod is prevented from shaking in a drilling process, the drilling accuracy is guaranteed, safety and reliability are achieved, and the drilling device has the characteristics of convenience, fastness and high work efficiency.

The invention discloses a drilling device for construction metal plates, and relates to the field of machining. By adoption of the drilling device for the construction metal plates, the problem that atraditional drilling device only positions plates, and consequentially, the drilling precision cannot be ensured is mainly solved. The drilling device comprises a base, a workbench and a movable frame, wherein a rotary motor is mounted at the position, right facing a storage table, of the bottom of the movable frame, and a shaft stretching end of the rotary motor is connected with a drill stem; the periphery of a stem body of the drill stem is slidably sleeved with a positioning sleeve, and L-shaped rods are symmetrically fixed to the two sides of the positioning sleeve; and connecting columns matched with the L-shaped rods are fixed to the bottom of the movable frame and are provided with insertion grooves which are open downwards, and vertical rod bodies of the L-shaped rods are slidably clamped in the insertion grooves. According to the drilling device for the construction metal plates, the positioning sleeve is arranged to position the drill stem when the drill stem makes contactwith the plates, so that slipping of the drill stem is prevented, and the drilling precision is ensured; and meanwhile, the positioning sleeve moves synchronously when the drill stem is fed, so that feeding of the drill stem is avoided.

The invention discloses a horizontal deep hole group drilling machine for aerated concrete blocks capable of drilling multiple deep holes on aerated concrete blocks. , Drilling motor, transmission system, motor base, movable drill frame, linear slider, pinion gear, automatic advance and retreat knife motor, motor bracket, large gear, screw bracket, rack, electrical control box, the twist drill is drilled together The rods are connected together, the composite bearing is connected with the guide rod bracket, installed on the left side of the frame, the rear of the drill pipe is connected to the movable drill frame, the drilling motor is connected to the motor base on the movable drill frame, and the knife advances and retreats automatically The motor is fixed on the motor bracket and connected to the upper right side of the frame. The large gear is connected to the automatic advance and retreat knife motor and the screw control. The movable drill frame connected to the linear slider moves forward and backward on the guide rod. The guide rod and the screw rod are installed on the screw rod. On the bracket, the electrical control box is installed on the upper right side of the rack.

The invention belongs to machining technology and relates to a graduated adjustable drilling guide tool. The graduated adjustable drilling guide tool is characterized by comprises a base (1), a slider (2), a workpiece fastening screw (3) and a slider fastening screw (4). The graduated adjustable drilling guide tool has the advantages that shaft workpiece drilling precision is guaranteed, machining efficiency is increased, and machining cost is lowered.

The invention provides a method for positioning longitudinal osteotomy position of tibia in unicompartmental knee arthroplasty, an intramedullary positioning rod and a thighbone drilling guide auxiliary device are used for determining the drilling position of a fixing hole used for mounting a thighbone prosthesis on the thighbone, the fixing hole is prepared under the guiding effect of the thighbone drilling guide auxiliary device, the postartis of the thighbone is cut off, the meniscus is cut off, a thighbone test mold with the appropriate thickness of the distal condyle is selected and installed after bone surface primary forming, the knee joint is bent and stretched repeatedly, and the longitudinal osteotomy position of the tibia is determined through the thighbone test mold. By capturing the motion trail of the tibia joint during relative normal motion, reference is provided for longitudinal osteotomy of the tibia platform, so that the longitudinal osteotomy position of the tibia is determined, the rotation alignment of the tibia prosthesis is closer to the motion trail of the tibia joint, collision between the prostheses is avoided, the motion compatibility and coincidence of the thighbone and tibia prostheses are better, the postartis of the thighbone is preferentially cut off, so that the meniscus on the tibial plateau is cut off more easily, and the collateral ligament is prevented from being damaged.

The invention discloses a strengthening technology for a soft plastic collapse body karst tunnel. The strengthening technology comprises the steps that S1, surveying is carried out, a jet grouting pile technology is adopted at a soft foundation, and a steel flower pipe pile technology is adopted at a rock layer; S2, drilling is carried out by using the jet grouting pile technology , and a hole isdrilled at a positioning position through a rotary vibration drilling machine; S3, a grouting pipe is lowered, and drilling and lowering the grouting pipe are completed at the same time; S4, jet grouting is carried out, after a jet pipe is inserted into a predetermined depth, jetting operation is carried out from bottom to top, and a columnar jetting pile solidified body is formed after jetting construction is finished; S5, drilling is carried out by using the steel flower pipe pile technology, the position of the rock layer is confirmed, and a deep hole drilling machine is used for drilling;S6, lowering a pipe and grouting are carried out, and a steel flower pipe is grouted through a horn grouting pump until completely dense grouting is achieved; and S7, testing process is carried out, and a geological drill drilling and coring method is used for testing. By adopting a composite foundation treatment method combining a jet grouting pile and a steel flower pipe pile, the strengtheningtechnology overcomes the defect of " paying attention to a vault and making light of a tunnel bottom" in the prior tunnel construction, and thus the operation safety is ensured.

The invention discloses a fixture for conducting rough machining on water plugging holes of an engine cylinder block. An engine cylinder block to be machined is placed on a supporting plate. The engine cylinder block can conduct slippage on a base along with the supporting plate, so that feeding and discharging of a cylinder block piece are facilitated. When machining is conducted, a clamping device clamps the engine cylinder block to the supporting plate, meanwhile a locking portion locks the supporting plate and the base, it is guaranteed that in the drilling process of a drill bit is guaranteed, the cylinder block cannot waggle, and drilling deviation is avoided. A guide device plays a guide function on the drill bit of a radial drilling machine, and drilling accuracy is guaranteed.

The invention relates to a flex-rigid integrated circuit (IC) package substrate and a manufacturing method thereof. Aiming at improving the product quality and the product performance of the multi-layer integrated circuit package substrate, the invention adopts a high-Tg nonflowing PP sheet and pure copper foil materials and the newest wire bonding surface treatment technology and the automatic alignment and parallel exposure technology so that the minimum wire width/wire pitch of the substrate reaches 30 microns/30 microns, the pitch reaches 60 microns, the total thickness of four layers of flex-rigid substrates is less than or equal to 240 microns and the thickness tolerance is controlled within +/-5 microns. By adopting a method for combining ultraviolet with CO2 laser and a copper foiletching alignment technology, the invention can effectively avoid the problem of ensuring the drilling accuracy of blind holes by controlling the uniformity of the product thickness and improve the yield of blind buried drilling holes at 1 to 3 layers and 1 to 4 layers of four-order flex-rigid substrate products with the thickness of 240 microns by more than 30 percent.

The invention discloses a dual-drill stem transmission gear and a dual-drill stem gas outburst-preventing drill. The dual-drill stem transmission gear is provided with a transmission gear shaft in a box body; the box body is provided with a hollow external gear shaft therein; the external gear shaft and the box body are rotationally and hermetically connected; an internal gear shaft is sheathed and fixed with the internal hole of the dual-drill stem transmission gear by a bearing; a limiting mechanism is arranged between the internal hole and the internal gear shaft; the external gear shaft and the internal gear shaft are provided with transmission gears which are meshed with two transmission gears arranged on the transmission gear shaft; and the transmission gear shaft is connected with a power machine. The dual-drill stem gas outburst-preventing drill further comprises a machine frame, and an elevating positioning mechanism which are connected to a vertical support frame; the vertical support frame is provided with a sliding track; the sliding track is provided with a sliding plate; the sliding track and the sliding plate are in slip fit. The box body of the dual-drill stem transmission gear is arranged on the sliding plate; and a propeller hydraulic cylinder is arranged between the box body and the sliding plate. The invention has novel design, compact structure, high efficiency, excellent gas discharge effect, convenient usage, and excellent social and economic benefits.

The invention discloses a hardware electromechanical drilling workbench convenient for collecting chippings. The hardware electromechanical drilling workbench comprises a support, a drawer, a first connecting rod and a storage plate, wherein a universal wheel is installed on the lower surface of the support, and a storage grid is fixed above the inner side of the support; the drawer is positionedinside the storage grid, and a lock opening is formed in the front surface of the drawer; a workbench plate is arranged on the upper surface of the support, and a chip placing groove is formed in theworkbench plate; the left side and the right side of the front surface of the workbench plate are correspondingly provided with a first connecting block, and the inner side of the first connecting block is connected with a first fixing block; the first connecting rod penetrates through the upper side of the workbench plate, and a turning plate is arranged on the outer side of the middle part of the first connecting rod. According to the hardware electromechanical drilling workbench convenient for collecting chippings, the scraps can be conveniently collected, the tidiness of the workbench canbe kept, the drilled objects can be clamped, the accuracy of drilling is guaranteed, the tool and the part can be conveniently stored, and the working efficiency is improved.

The invention discloses a non-penetration-type photovoltaic support which comprises a plurality of base plates, the front ends of the base plates are provided with front supporting bases, the rear ends of the base plates are provided with rear supporting bases, a photovoltaic module is fixed between every two adjacent base plates through pressing blocks arranged on the front supporting bases and the rear supporting bases, the rear sides of the photovoltaic modules are provided with back guide plates, and lateral backflow plates are arranged on the outer sides of the photovoltaic modules on the two sides of the photovoltaic support. The whole non-penetration-type photovoltaic support is designed by using the aerodynamics, the three sides of each photovoltaic module are all provided with the corresponding guide plates, air can be guided, wind power borne by whole equipment is reduced, the whole non-penetration-type photovoltaic support is designed independently, the non-penetration-type photovoltaic support can be used for modular production assembly, storage and transportation are greatly facilitated, net-shaped combination is used, no weights are needed for bottom stowage or only a small number of weights are needed for bottom stowage, and the cost is lowered; due to the fact that no bottom stowage and no fixation are needed, the weight is relatively low, and the bearing requirements for construction roofs can be lowered.

The invention discloses a rotary type laser drilling positioning tool, and mainly relates to the field of glass processing tools. The tool comprises a base, a supporting base, a locking mechanism anda workpiece positioning and fixing device, wherein a driving motor is arranged in the base; the supporting seat is rotationally connected with the base and is in transmission connection with the driving motor; the locking mechanism comprises an annular magnet fixed on the supporting seat and supports fixed to the top of the base, the center line of the annular magnet coincides with the center lineof the supporting base, electromagnets matched with the annular magnet are arranged at the top of the supports; and the workpiece positioning and fixing device is fixedly connected with the support seat. The tool can solve the requirement of glass annular drilling, and has the advantages of being simple in structure, convenient to operate, high in positioning precision and low in manufacturing cost.

The invention discloses a drilling device for building construction. The drilling device comprises a machine body, a drill bit and a handle are installed on the machine body, the drilling device further comprises a sleeve plate, the machine body is clamped in the sleeve plate in a sliding mode through sliding blocks, and supporting legs are vertically fixed to two sides of the sleeve plate; and asliding rail is horizontally fixed to the upper end of the machine body, a sliding plate is embedded in the sliding rail in a sliding mode, scale marks are arranged on the sliding plate, and an indicating strip matched with the scale marks is arranged on the upper end face of the sleeve plate. According to the drilling device for building construction, the machine body is vertically clamped in thesleeve plate in a sliding mode and supported on the wall face through the supporting legs on the sleeve plate, so that the drill bit is always perpendicular to the wall face in the drilling process,and then the drilling quality is guaranteed; and the sliding plate with the scale marks is arranged on the machine body, zero setting before drilling can be carried out according to the drill bits ofdifferent lengths, the drilling depth can be visually known according to the scales indicated by the indicating strip after zero setting is completed, thus the drilling precision is guaranteed, and the drilling device is suitable for the drilling requirements of different depths, and is convenient and rapid to operate.