66286 results about "Screw thread" 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 utility model provides an angle steel tower foot welding processing platform, and relates to the technical field of welding processing platforms, the angle steel tower foot welding processing platform comprises a workbench, the top of the workbench is fixedly connected with a fixing assembly, and the top of the fixing assembly is fixedly connected with a plurality of limiting assemblies; the fixing assembly comprises a fixing frame, a plurality of mounting grooves are formed in the top of the fixing frame, and threaded rods are rotationally connected to the inner surfaces of the mounting grooves. According to the utility model, through the cooperative use of the first handle, the threaded rod, the guide rod, the moving block, the clamping block and the mounting groove, not only can the tower foot bottom plate be fixed, but also the limiting assembly can be driven to move synchronously, and then through the cooperative use of the second handle, the bidirectional screw rod, the clamping plate, the auxiliary rod and the limiting frame, the tower foot bottom plate can be fixed. And the cross-shaped tower frame on the tower foot bottom plate is clamped and fixed, so that the tower foot bottom plate and the cross-shaped tower plate are conveniently welded after being fixed, and the welding efficiency of the tower foot is improved.

The invention discloses horizontal internal thread tapping equipment, which relates to the technical field of tapping equipment and comprises a main body, a hydraulic mechanism, a clamping, lifting and overturning mechanism, a tapping mechanism, a liquid supply mechanism and a cooling and lubricating mechanism. Through workpiece overturning and tapping direction optimization, the problem of scrap accumulation in traditional tapping is thoroughly solved, when a hydraulic mechanism is used for driving a clamping, lifting and overturning mechanism to descend, an overturning gear is meshed with a toothed plate to drive a workpiece to overturn by 180 degrees, the bottom-to-top tapping action of a screw tap is matched, scraps naturally fall by means of the gravity effect, and the tapping efficiency is improved. Meanwhile, chippings are further scoured through precise spraying of the cooling lubricating liquid, the chippings are prevented from being retained on the surface of the threaded hole or the screw tap, by means of the design, the additional friction resistance of the chippings to the screw tap is reduced, the abrasion and fracture risks of the screw tap are reduced (the service life is prolonged by 30% or above), the problems of thread disorder, size out-of-tolerance and the like caused by chipping extrusion are solved, and the service life of the screw tap is prolonged. The thread machining precision and the surface quality are remarkably improved, and the workpiece rejection rate is reduced.

The invention relates to the technical field of molds, and particularly discloses a multi-point forming mold which comprises an upper mold and a lower mold, the upper mold and the lower mold each comprise a mold base, a plurality of pressing head assemblies and a plurality of guiding pieces, the multiple pressing head assemblies are fixedly connected into the mold bases in a rectangular array mode, each pressing head assembly comprises a motor, a screw, a thread sleeve and a forming pressing head, and the motor is used for driving the screw to rotate; the screw is in threaded connection with the threaded sleeves, the forming pressing head is arranged at the end, away from the motor, of the screw and extends out of the threaded sleeves, the multiple guiding pieces are fixedly connected into the mold base in a rectangular array mode, the threaded sleeves are connected to the two sides, in the first direction and the two sides, in the second direction, of the guiding pieces correspondingly, and the threaded sleeves are slidably connected with the guiding pieces and can slide in the height direction of the guiding pieces. The first direction is perpendicular to the second direction. The multiple pressing head assemblies can be connected into a whole through the multiple guiding pieces, so that the transverse rigidity of the multi-point forming die is improved, meanwhile, the guiding pieces guide ascending and descending of the threaded sleeve, and the accuracy of the ascending and descending action of the threaded sleeve is guaranteed.

The invention relates to the technical field of fastener process production, in particular to a process parameter control method and system applied to fastener production. The method comprises the following steps: acquiring three-dimensional cutting force of a tool-workpiece contact area in a fastener thread machining process in real time, and generating cutting force dynamic fluctuation characteristic data; the real-time abnormal situation of the current machining process is recognized according to the cutting force dynamic fluctuation characteristic data, a tool wear mode is judged, thread ring machining deviation prediction is conducted, and a predicted thread geometric deviation value is generated; and adjusting multiple machining control parameter values according to the predicted thread geometric deviation value, and carrying out real-time machining feedback monitoring so as to realize fastener production self-adaptive control. According to the method, intelligent recognition of the tool wear mode and accurate prediction of the machining deviation are achieved through cutting force sensing, and it is ensured that the thread machining precision of the fastener is stable and controllable through multi-parameter cooperative self-adaptive regulation and control.

The invention provides equipment and a process for extracting lithium from lepidolite frame residues and synthesizing urea gypsum, and relates to the technical field of solid waste resource recycling, the equipment comprises a reaction tank, a sealing plate, a reciprocating motion mechanism and a multi-point detection mechanism; the reciprocating motion mechanism comprises a bidirectional threaded lead screw and a threaded block, the bidirectional threaded lead screw is transversely and rotatably connected to the inner wall of the reaction tank, the threaded block is in threaded connection with the bidirectional threaded lead screw, and the bottom of the threaded block is slidably connected with a guide seat. According to the scheme, when the top of a rotating wheel is in contact with a concave position of a convex plate, a rotating seat can drive a sliding rod and a PH detector to move upwards under the action of a spring, so that the bottom end of the PH detector is separated from filtrate, and a plurality of convex parts are arranged on the convex plate, so that the filtrate is subjected to multi-point real-time detection; lithium ion loss caused by co-precipitation of lithium, iron and aluminum due to over-high local pH value of the filtrate is avoided, and the concentration of the lithium solution is effectively improved.

The invention relates to the related technical field of steel column construction, and particularly discloses a super high-rise building steel column embedded type column foot construction device and a construction technology thereof.The construction device comprises a foundation, a steel column, a rib plate, a bottom plate and anchor bolts, the position, below the rib plate, of the steel column is fixedly connected with a pouring plate, and a cavity is formed in the bottom plate; a fixing assembly used for fixedly clamping a steel column is arranged below the bottom plate, an auxiliary assembly used for removing bubbles from concrete is arranged on the side face of the steel column, two sets of clamping blocks move in a cavity of the bottom plate, the bottom plate can be clamped and fixed, and the stability of the steel column during pouring is improved; and meanwhile, when a screw rod rotates to drive a threaded sleeve to rotate in an adjusting block, a steel column above the adjusting block can be pulled for position adjustment, and the adjusting block can drive a wedge-shaped block to extrude a cylindrical head and apply reverse extrusion force to a driving part, so that the clamping and limiting effects of a clamping block on a bottom plate are improved.

In various embodiments, an apparatus comprises a locating optic assembly mount arranged to receive an optic or a bracket on which the optic is installed, wherein the locating optic assembly mount includes: one or more locating fastener openings to receive one or more locating fasteners with threaded sections and non-threaded shoulders, wherein the non-threaded shoulders extend through the optic or bracket and below a surface located below the optic or bracket, each locating fastener opening including: a threaded hole to mate with the threaded section of the corresponding locating fastener; and a counter opening located above the threaded hole, wherein the counter opening is arranged to slip fit with the non-threaded shoulder of the corresponding locating fastener to align a center axis of the locating fastener with a center axis of the locating fastener openings. Other embodiments may be disclosed and / or claimed.

Studs, assemblies, and related methods may provide enhanced reliability of connections between components in high-power pumps. A stud may include a stud body having an anchor end positioned to be threadedly engaged with a fluid end block, and a fastener end positioned to be threadedly engaged with a fastener, thereby to secure the component and the fluid end block to one another. The stud body may include external anchor threads at the anchor end of the stud body having a buttress thread form, thereby to secure the anchor end of the stud body to the fluid end block. The stud body also may include external fastener threads at the fastener end of the stud body, and the external fastener threads may have a thread form different than the external anchor threads of the anchor end of the stud body.

The utility model discloses a hub spinning machine which comprises a processing chamber and a hub blank, two opposite sides of the inner wall of the processing chamber are respectively provided with a rough rotary knife and a fine rotary knife, the bottom end of the processing chamber is provided with a piece jacking mechanism and a deviation rectifying mechanism, the top end of the processing chamber is provided with an opposite jacking mechanism, and the opposite jacking mechanism comprises a piece jacking block. The machined part top seat is located in the containing ring, the hub blank is located between the part ejecting block and the machined part top seat, the upper end of the machined part top seat is in the shape of a circular truncated cone, it can be guaranteed that the angle of the hub blank does not deflect when the hub blank is machined, and the yield of finished hub products is increased. The clamping connection is formed by the pressing block and the clamping groove, the power threaded rod and the fixing plate are rotationally connected, the power threaded rod and the meshing threaded rod are connected in a meshing mode, and the meshing threaded rod and the sliding sleeve are rotationally connected, so that it can be guaranteed that a hub blank is stable and does not shake during machining, and the machining quality is guaranteed; and the device can adapt to hub blanks of different models.

The invention discloses a spacer for separating adjacent bare conductors, and belongs to the technical field of spacer installation, the spacer comprises a spacer and locking mechanisms installed at two ends of the spacer and used for respectively locking the adjacent bare conductors, each locking mechanism comprises a fixed clamp and a movable clamp, a lead-in port is formed between the fixed clamp and the movable clamp, and the lead-in port is communicated with the fixed clamp and the movable clamp. The top of the fixed clamp is a base, the movable clamp is movably arranged on one side of the base, the movable clamp has a rotating stroke and a horizontal sliding stroke relative to the fixed clamp, and the movable clamp has a horizontal state perpendicular to the fixed clamp and a vertical state aligned with the fixed clamp in the rotating stroke; a screw rod is rotationally arranged on the fixed clamp, a screw hole is formed in the movable clamp, when the movable clamp rotates downwards from a horizontal state to a vertical state, the screw hole is in butt joint with the screw rod, and the screw rod is driven by a driving mechanism to rotate so as to be in threaded fit with the screw hole; and the movable clamp performs a horizontal sliding stroke so as to be close to the fixed clamp to clamp the bare conductor.

A kit includes an adjustable chock provided with a first component having screw threads and with a second component having screw threads cooperating with the screw threads of the first component and having a lower bearing surface, and with a bearing element provided with a lower bearing surface in contact with an upper bearing surface of the first component, and with an upper bearing surface. The kit further includes at least one friction ring adapted to be mounted against the lower bearing surface of the second component or against the upper bearing surface of the bearing element.

The utility model discloses a support for steel structure welding, and relates to the technical field of steel structure welding. The support for welding the steel structure comprises a welding table, two arc-shaped grooves are oppositely formed in the welding table, gear rings are movably arranged in the arc-shaped grooves, a plurality of electric push rods are installed on the inner sides of the gear rings, and the telescopic ends of the electric push rods are connected with clamping plates so that the steel structure to be welded can be conveniently clamped and fixed; a lead screw is arranged on the lower side of the welding table, a movable plate is arranged on the lead screw in a threaded mode, fixed rods are fixed between the movable plate and the racks on the two sides, under the action of the lead screw, the movable plate can be conveniently adjusted to move front and back, and the racks are driven to synchronously move in combination with the fixed rods; and therefore, the purpose of synchronously adjusting the two to-be-welded steel structures to rotate is achieved, welding operation can be conveniently carried out on the circle of the butt joint of the steel structures, workers do not need to turn over the steel structures, manpower is saved, and the welding efficiency is improved.

The utility model belongs to the technical field of casing centralizers, and particularly relates to an underground casing centralizer which comprises a centralizer body, the centralizer body is composed of an upper positioning ring and a lower positioning ring, and the upper positioning ring and the lower positioning ring are connected through a plurality of first screws and second screws which are arranged in a staggered mode. An inner gear is rotationally connected to the edge of the lower positioning ring, a driving gear meshed with the inner gear is connected to the bottom of each first screw rod, and a driving mechanism is arranged at the position, located on the upper positioning ring, of one first screw rod; the two ends of the first screw rod are connected with a first moving frame through threads, and the first moving frame is located on the inner side of the centralizer body and rotationally connected with a guide wheel through a first connecting plate; second moving frames are connected to the two ends of the second screw rod through threads, the portions, located on the outer side of the centralizer body, of the second moving frames are rotationally connected with guide frames through second connecting plates, and positioning plates are arranged on the outer sides of the guide frames.

The invention relates to the technical field of axle machining, and provides a cutting device and process for axle machining, the cutting device comprises a machining lathe, a connecting plate is fixedly connected to the interior of the machining lathe, and a sliding bottom plate is slidably connected to the outer side of the connecting plate. The first driving motor rotates to drive the top plate to move transversely, a threaded connection structure converts rotary motion into linear displacement, so that the top plate slides in the fixing column, pressure adjustment is conducted through a buffer structure arranged in the fixing column, the pressure adjusting system achieves accurate control over clamping force, meanwhile, the overload protection function is achieved, and the service life of the device is prolonged. Therefore, the problem that the clamping or jacking force is too large in the working process can be effectively solved, and the problem that the working efficiency during axle production is affected due to the fact that the axle is fractured due to the fact that the internal stress of the axle body is too large is solved.

This invention refers to a one-piece ceramic-tile levelling system comprised of a base from which a longitudinally partially-threaded stem rises perpendicular to the flat surface of the base. The device also consists of a torque hood composed of a partially-threaded cylindrical orifice, to the walls of which said stem is attached in an arrangement concentric to said orifice by means of frangible connections. The stem thread and the torque hood thread are complementary to one another so that when the frangible connections are broken, the torque hood is screwed onto the stem in such a way that a face of the torque hood parallel to the flat surface of the base closes in on the same, levelling the two adjacent tiles as it does so.

The invention provides a nut thread defect detection method and system and a medium, and the method comprises the steps: collecting a nut image based on a high-resolution camera, and carrying out the preprocessing of the nut image, and obtaining a preprocessed image; scanning the outer surface of the screw thread of the screw cap based on a laser scanner to obtain three-dimensional point cloud data of the screw cap; extracting image features based on the preprocessed image, generating image data, and performing fusion processing on the image data and the three-dimensional point cloud data to obtain fusion data; thread parameter identification is carried out through a deep learning algorithm based on the fusion data, and thread defect information is obtained; transmitting the thread defect information to a terminal in real time according to a preset mode; through combination of image processing, a three-dimensional laser scanning technology and a deep learning algorithm, automatic detection of screw cap threads is realized, and thread defects including the size, the shape, the number and the like of the threads can be rapidly and accurately identified, so that the detection efficiency and precision of a production line are improved.

In a compound bow, an axle, having threaded ends, is pushed through a hole in a cam. Cam spacers, having internal threads, are screwed onto the ends of the axle until the ends of the cam spacers abut the cam. The cam can rotate freely around the unthreaded middle portion of the axle. The ends of the cam spacers go into holes in limb brackets attached to the bow's resilient limb ends. In one embodiment, the ends of the cams are threaded, and a nut is tightened over the thread to shift the cam spacers and cam left or right relative to the limb brackets. In another embodiment, the cam spacers and limb brackets are threaded, and turning the cam spacer shifts the cam left or right. In both embodiments, the cam position is precisely adjusted and very stable.

The aluminum alloy structure bending equipment for bridge construction comprises a workbench, the top of the workbench is movably connected with a placing assembly, the placing assembly is provided with a slide way assembly, the slide way assembly is movably connected with two sets of supports, and conveying rollers are movably connected between the tops and the bottoms of the supports; a driving motor is fixed to the outer wall of the top of the support, the output end of the driving motor is connected to the top of a conveying roller through a coupler, the conveying roller is used for conveying the aluminum alloy structure, the support is fixed to the outer wall of the top of the workbench, and a bending roller is movably connected to the inner wall of the top of the support. Through threaded connection of the two-way threaded rod and the supports and the guiding effect of the guiding plate, the spacing distance between the conveying rollers on the two supports can be easily adjusted only by driving the two-way threaded rod to rotate, so that the two-way threaded rod is rapidly matched with aluminum alloy structures with different outer diameters, and preparation work before feeding is greatly simplified.

Disclosed is a method of fastening a cap of a container, the method including: specifying a screw thread engagement point of a cap and a neck ring of a container; and aligning the engagement point with a fastening start position of the cap and fastening the cap to the neck ring, in which the specifying of the engagement point includes detecting the engagement point by rotating the cap in a reverse direction in a state where the cap is seated on the neck ring.

An oil drain plug assembly includes a threaded drive nut rotatable to open and close a valve assembly controlling the flow of oil from an oil reservoir, the valve assembly including a valve body with a threaded hollow valve rod extending therethrough, wherein the distal end of the valve assembly is in fluid communication with the oil reservoir, the threads of the hollow valve rod are positioned on the outer surface of the hollow valve rod away from its distal end, and the threaded drive nut is threaded onto the threads of the hollow valve rod.

A method, includes securing a component of an anchor apparatus to a board of a form utilized to form a concrete support structure; coupling an anchor of the anchor apparatus relative to the component by engaging a threaded segment of the component with a cooperative threaded segment of the anchor; depositing concrete within the form to create the concrete support structure, the concrete support structure at least partially enclosing the anchor; removing at least a portion of the board of the form; and accessing the anchor through a cavity in the concrete structure formed by the component.

The invention relates to the technical field of mechanical precision machining, and discloses a novel steel ultra-slender internal thread machining technology which comprises the steps that a workpiece is clamped on a machining platform at a time, internal thread preprocessing is conducted on the workpiece, so that a prefabricated threaded hole with the finish machining allowance is formed, and a measuring probe is adopted for conducting online detection on the prefabricated threaded hole; the detection result of the prefabricated thread representing the actual geometrical morphology and the spatial pose is obtained; and on the basis of the detection result, determining control parameters for dynamically compensating the movement of the machining tool in subsequent finish machining. According to the method, an ideal force-torque model dynamically changing along with the machining depth is established in advance by utilizing an actual hole pattern contour function established through online detection and combining the physical law of material cutting, and then the machining torque monitored in real time is compared with the model, so that machining abnormities such as chip blockage and the like can be judged immediately and accurately.

The invention discloses a two-degree-of-freedom clamp capable of adjusting the bending moment and direction of a turbine blade and a test method. The two-degree-of-freedom clamp comprises a blade clamping component, an upper adjustable U-shaped head, a lower adjustable U-shaped head, an upper clamping rod and a lower clamping rod. The blade clamping component is in threaded connection with the upper adjustable U-shaped head and the lower adjustable U-shaped head, the other end of the upper adjustable U-shaped head and the other end of the lower adjustable U-shaped head are connected with the upper clamping rod and the lower clamping rod respectively, and the other end of the upper clamping rod and the other end of the lower clamping rod are connected with an upper clamping head and a lower clamping head of the fatigue testing machine respectively. The upper clamping rod and the upper adjustable U-shaped head are adjustably connected in pairs in the transverse direction intersecting with the vertical axis so as to adjust the eccentricity of the turbine blade load. The eccentric angle of the blade load can be adjusted by adjusting the rotation cycle of the blade clamping component. According to the clamp disclosed by the invention, by adjusting the eccentricity and the eccentricity angle during a turbine blade test, different bending moment directions and relative sizes of different sections during the turbine blade test can be realized, so that the aim of simulating a real load is fulfilled.

The invention relates to the field of fasteners, in particular to a fastener product quality tracing method and system, and the method comprises the steps: extracting a stud contour, screening edge points in the stud contour to obtain a thread point set, and carrying out the fitting of the thread point set to obtain a virtual thread curve; presetting a plurality of straight lines parallel to the central axis of the stud contour, calculating gray evaluation between the target intersection point and other pixel points except the target intersection point on the corresponding straight line, taking other pixel points corresponding to the maximum gray evaluation as actual intersection points, and traversing to obtain actual intersection points corresponding to ideal intersection points on each straight line; and for any straight line, calculating the position distance of any two adjacent actual intersection points to construct a distance sequence, judging that the stud workpiece is qualified in response to all the distance sequences meeting a preset condition, and judging that the stud workpiece is abnormal in response to any one of the distance sequences not meeting the preset condition. According to the invention, the precision of thread detection in a fastener product can be improved.

The utility model discloses sheet metal part butt-joint clamping machining equipment, and particularly relates to the technical field of sheet metal part butt-joint machining, which comprises a working table, a support frame is fixedly connected to the top of the working table, a sliding block is arranged at the bottom of the support frame, a welding device is arranged at the bottom of the sliding block, and a first threaded rod is inserted in the middle of the sliding block. The first threaded rod is arranged in the middle of the supporting frame, a limiting sliding groove is formed in the top of the workbench, and two limiting sliding plates are arranged in the middle of the limiting sliding groove. The sheet metal part is clamped and fixed to the top of the supporting plate through the arranged clamping mechanism, the two limiting sliding plates are controlled to drive the supporting plate and the top sheet metal part to move towards the opposite sides, butt joint use and mechanical butt joint can be facilitated, the butt joint accuracy can be guaranteed, and the butt joint efficiency is improved. And the electric push rod is started to control the supporting plate to obliquely rotate, the inclination angle of the butted sheet metal parts can be adjusted, and the using effect is improved.

The invention relates to the technical field of spiral finned tube laser welding, in particular to a solid spinning spiral finned tube laser welding machine. Comprising a first base and a second base, a threaded rod is rotationally connected between the first base and the second base, and the threaded rod is in threaded connection with a machining assembly; the first motor drives the driving belt wheel to rotate, so that the machining assembly conducts welding operation of the spiral fins on the surface of the base tube while moving, and through the transmission relation between the driving belt wheel and the driven belt wheel, the base tube synchronously rotates while the machining assembly conducts moving machining; according to the spiral finned tube machining device, the machining assembly is arranged to meet the welding requirement of the spiral finned tube, movement of the machining assembly and rotation of the base tube are controlled at the same time through the same driving structure, the stability and consistency in the machining process are improved, the machining speed can be adjusted more conveniently, fin welding is more uniform, and the welding quality is effectively improved.

The utility model relates to the technical field of ship mechanical part machining, in particular to a polishing device for ship mechanical part machining, and solves the problem that in the prior art, ship mechanical parts of different shapes and sizes cannot be conveniently adjusted and fixed, so that the polishing effect is poor. A polishing device for ship mechanical part machining comprises a machining table and a polishing machine, the machining table is provided with a sliding groove, the interior of the sliding groove is slidably connected with a mounting block, the top of the mounting block is provided with a bearing plate through a buffering mechanism, the surface of the bearing plate is fixedly connected with four supporting blocks, and the surfaces of the supporting blocks are in threaded connection with screws; a clamping drill is fixedly connected to the surface of the screw rod, a plurality of limiting grooves are formed in the surface of the bearing plate, and limiting rods are arranged in the limiting grooves in a penetrating mode. According to the polishing fixture, clamping and fixing of parts with different shapes and sizes are guaranteed, so that the parts can be normally polished, and the polishing effect of the parts cannot be affected.

The invention discloses a double-acting integrated hydraulic nut and a hydraulic nut system. The double-acting integrated hydraulic nut comprises a cylinder body, a piston, a cylinder cover, a locking nut, an outer hexagon head bolt and a locking sleeve. A mounting plane attached to a workpiece is arranged at the bottom of the cylinder body, and the piston is arranged in an inner cavity of the cylinder body in an axial sliding mode. The outer hexagonal head bolt sequentially penetrates through the axial through hole of the piston and the bottom of the cylinder body, and the threaded end of the outer hexagonal head bolt is meshed with a workpiece in a threaded mode. The cylinder cover is arranged at the top of the cylinder body; the locking nut is in threaded connection with the piston rod and is in contact with the top surface of the cylinder cover; a pressurizing oil port connected with a hydraulic pump station is formed in the side wall of the cylinder body. The hexagonal head of the outer hexagonal head bolt is sleeved with the locking sleeve which is in driving connection with the electric wrench. Due to the fact that the bearing seat bolts are compact in layout and large in bolt pre-tightening force requirement, the experiment platform can be rapidly mounted and dismounted, and working time and cost are greatly reduced.