23 results about "Pentahedron" patented technology

The utility model relates to a connecting piece casting for a pentahedron machining center, which belongs to the technical field of castings and comprises a connecting piece casting body, first fixing plates arranged in an array are connected to the upper surface and the lower surface of the casting, adjustable fixing components are slidably clamped to two sides of the casting, and sliding connecting grooves are formed in two sides of the casting. Sliding grooves are formed in the two sides of the sliding connecting groove, square positioning grooves are formed in the two ends of the connecting piece casting body, first connecting holes are formed in the first fixing plate, kidney-shaped holes are formed in the upper surface and the lower surface of the connecting piece casting body, and square positioning grooves are formed in the two ends of the connecting piece casting body. According to the technical scheme, connecting materials can be positioned, the convenient and fast fixing function is achieved, the connecting stability is remarkably improved, the device is suitable for different connecting modes and can be repeatedly used, the materials of different lengths and widths can be effectively clamped and fixed through the adjustable fixing assembly, and therefore the practicability and flexibility of the technical scheme are remarkably improved.

This invention provides a method and device for predicting temperature changes in electronic components based on pentahedral elements. The method includes: meshing the electronic component into pentahedral elements based on its structural parameters; determining the three-dimensional transient heat conduction governing equation and initial algebraic equation for the target region; determining correction terms based on the virtual node domain defined for the pentahedral elements, the Galerkin weight function, the three-dimensional transient heat conduction governing equation, and the initial algebraic equation; correcting the initial algebraic equation based on the correction terms to obtain the target algebraic equation; determining the final algebraic equation based on the target algebraic equation and a preset time interval; solving the final algebraic equation to obtain the transient heat conduction temperature simulation result; adjusting design parameters based on the transient heat conduction temperature simulation result; and implementing optimized design of the electronic component based on the adjusted design parameters.

The invention relates to the technical field of numerical control machine tools, and particularly discloses a pentahedral gantry machining center numerical control machine tool which comprises a base and a disc, and the base is arranged on the upper side of a transverse plate; a supporting mechanism used for facilitating rotation of the working disc is arranged in the disc. A clamping mechanism used for preventing deviation during machining is arranged in the middle of the upper side of the working disc. According to the pentahedral gantry machining center numerical control machine tool, the supporting mechanism is matched with the balls through the guide rails, stable rotation of the working disc is guaranteed, and lubricating maintenance is facilitated through an oil injection channel and an oil discharge outlet; the clamping mechanism drives an arc-shaped plate to clamp a workpiece through a two-way threaded rod, and an anti-skid pad enhances friction force and prevents machining deviation; the moving mechanism drives a moving plate through a one-way threaded rod and is matched with a fixed plate to adapt to workpieces of various sizes; an electric telescopic rod is matched with a c-shaped rod to assist in fixing the position of the working disc, and the machining stability is improved; the air injection gun can slide to clean machining scraps, and the machining environment is kept clean.

The invention discloses a composite material pentahedron structure part forming process and a structure part, and belongs to the technical field of part machining. The invention discloses a molding process of a composite pentahedral structure part. The molding process comprises the following steps: step 1, preparing a prefabricated part; step 2, laminating and curing; step 3, punch forming; fourthly, demolding is conducted after pressure maintaining and cooling are conducted, and the pentahedron structure part is obtained; the continuous fiber composite material is adopted as the main stress surface of the pentahedron structure, the fiber direction can be directionally laid according to the bearing requirement, the high ductility and rigidity of the metal connecting piece are combined, a composite material force bearing and metal force transmission synergistic structure is formed, compared with a traditional continuous fiber RTM product, the composite material force bearing and metal force transmission synergistic structure is improved by 15%-20%, the stress concentration coefficient at the corner is reduced by 30%, and the service life of the RTM product is prolonged. The industrial problems of corner cracking and interlayer separation are effectively solved, and the mechanical requirements of new energy automobile battery shells, aerospace equipment shells and other high-performance scenes can be met.

The application discloses a compact ultraviolet reactor with longitudinal vortex generators. The longitudinal vortex generators comprise a bottom plate and a plurality of longitudinal vortex generating plates; the bottom plate is in a circular ring structure or a spiral structure, and the longitudinal vortex generating plates are in a pentahedron, hexahedron or polyhedral plate structure; the longitudinal vortex generating plates are uniformly arranged along the circumference of the bottom plate, and the longitudinal vortex generating plates are arranged obliquely relative to the radial plane of the bottom plate; the compact ultraviolet reactor comprises coaxially arranged ultraviolet radiation light sources, a light-transmitting quartz tube, longitudinal vortex generators and a reactor cavity; and an annular flow channel between the reactor cavity and the light-transmitting quartz tube forms a reaction zone. The longitudinal vortex generators can strengthen the mass transfer capacity of the fluid medium in the reactor, can improve the time for the fluid medium to accept ultraviolet irradiation, thereby improving the processing efficiency, and have small flow channel space occupation and small pressure difference resistance, and are suitable for various compact ultraviolet reactors.

This invention discloses a method for optimizing cutting accuracy on a CNC lathe for machining five-sided machining centers, relating to the field of CNC machining accuracy control technology. The method includes acquiring the original three-dimensional design model of the workpiece and preset clamping posture information, and generating a workpiece machining simulation model in the CNC lathe's working coordinate system. The model includes the geometric boundaries of machining features, the constraints of each machining feature in the machining time sequence, and the theoretical spatial paths of the tool approaching each machining surface. Based on the time sequence constraints, the tool path sequence is planned, and the tool tip position and posture change sequence are calculated. This sequence is coupled with the axis kinematic model to obtain the theoretical position and speed command sequence of the servo axis. The command sequence undergoes speed smoothing and jerk constraint look-ahead preprocessing to generate smoothed and optimized axis control commands. This method can improve the matching accuracy between tool pose and axis motion, reduce abrupt changes in axis motion, and enhance the trajectory accuracy of the cutting process.

The invention discloses a pentahedral gantry machining center, and particularly relates to the technical field of machining machine tools, the pentahedral gantry machining center comprises an equipment main body and a gantry frame, and further comprises a workbench slidably arranged on the equipment main body, a plurality of inverted T-shaped grooves are formed in the top of the workbench, and a plurality of mounting holes are formed in the workbench; a shell and a translation mechanism used for driving the shell to transversely move are arranged on one side of the workbench, a plurality of cleaning pieces corresponding to the inverted-T-shaped grooves one to one are arranged at the bottom of the shell, a plurality of driving mechanisms used for driving the cleaning pieces to reciprocate are arranged in the shell, a collecting shell is arranged on the other side of the workbench, and an air pump is arranged at the bottom of the collecting shell. A blowing nozzle is arranged at the top, and an air pipe is arranged between the blowing nozzle and the air pump. According to the scrap iron cleaning device, the tedious process of traditional manual cleaning is avoided, automatic cleaning and collection of scrap iron in the machining process are achieved, the shutdown cleaning time is greatly shortened, the same position can be scraped multiple times through the cleaning piece, and workpiece clamping errors caused by scrap iron accumulation are avoided.

The invention relates to the technical field of modular buildings, in particular to a concrete pentahedron modular building and a construction method.The concrete pentahedron modular building comprises multiple sets of pentahedron modular box bodies, multiple sets of frame columns and multiple sets of concrete superposed beams, and the multiple sets of concrete superposed beams are installed between the multiple sets of pentahedron modular box bodies correspondingly; the plurality of groups of frame columns are respectively mounted at the corners of the plurality of groups of pentahedral modular box bodies; the pentahedral modular box body is composed of a pentahedral modular box body top plate and four sets of pentahedral modular box body side plates, the pentahedral modular box body top plate is located at the tops of the four sets of pentahedral modular box body side plates, and gaps are formed between the adjacent pentahedral modular box body side plates; a pouring groove is formed in the side wall of the pentahedral modular box body; the assembly degree is high, installation is fast, the construction period is greatly shortened, the problem of plate repetition between the upper module and the lower module is avoided, and the use space is increased.

The application discloses a kind of active-passive fusion rock burst monitoring systems and methods for deep well roadway driving, and the system is composed of regional active detection layer, local passive monitoring layer, data processing center and physically isolated dual-fiber ring network.The regional active detection layer uses splicing annular track and electrically sliding controllable seismic source / seismic pickup, and the sliding interval is dynamically adjusted according to the real-time measured value of the loose circle;The local passive monitoring layer arranges microseismic sensors using pentahedron topology support, and the node depth changes adaptively with the loose circle.The data processing center integrates lightweight dual-source CT inversion module, confidence-weighted double-difference positioning module and excavation step-model refresh mapping table.Each time the roadway is excavated by 50m, a 1m×1m×1m grid velocity model local update can be completed under the condition of no downtime, the microseismic event positioning error ellipsoid volume is reduced by ≥30%, and high-precision, blind area-free and continuous monitoring of rock burst danger zones is achieved.

The utility model discloses an electronic board structure of a lightweight star sensor, which comprises a square frame, a lens group is mounted on the left side of the square frame, five circuit boards are mounted on the outer side of the square frame, and a flexible PCB (printed circuit board) is connected between every two adjacent circuit boards. The four circuit boards are respectively provided with an image sensor module, a signal processing module, a data processing module, a communication interface module and a power management module. According to the utility model, the star sensor is integrated at the outer side of the lens group, so that the occupied space can be effectively reduced, the size of the star sensor is further reduced, the wiring length can be effectively reduced, the cost is saved, meanwhile, the star sensor can have three-dimensional thermal management, five circuit boards form a pentahedral radiator, and the space is saved. And each plate can be independently connected with heat dissipation surfaces (top / side / bottom) in different directions of the satellite shell, so that the heat dissipation effect is effectively improved.

This invention discloses a pentagonal mobile robot based on flexible hinges, comprising first to fifth truncated tetrahedral vertices and first to tenth telescopic branches; each pair of truncated tetrahedral vertices is connected by telescopic branches to form a pentagonal body; the special flexible hinge method forms a fixed connection with high rigidity and strong stability of deformation and movement; the specially designed vertex and hinge method enable the mobile robot to achieve complete vertex passage movement, vertex position interchange, overall inward and outward flipping, and movement through deformation; this invention can be applied to reconnaissance and detection in unknown environments.

The utility model relates to numerical control machine tool technical field discloses a heavy cutting's crown block gantry five -face processing center, including the workstation, the workstation both sides symmetry is provided with the stand, two the stand top end is erected with the crossbeam, install the slide saddle and the slide saddle sliding connection's slide ram on the crossbeam, the slide ram lower extreme is connected with the universal head, drive system, including for driving the crossbeam, slide saddle and the slide ram move's X axle double screw rod synchronous drive mechanism, Y axle screw rod drive mechanism and Z axle screw rod drive mechanism, the utility model discloses through X axle double screw rod synchronous drive, ensure the positioning accuracy when crossbeam big stroke movement, cooperate Y, Z axle screw rod drive, promoted the stability of multi -shaft linkage processing, effectively solved the problem of single screw rod drive synchronous accuracy deficiency. The slide ram adopts the square cross section hard rail structure and cooperates the hydraulic balance oil cylinder, compared with traditional cylindrical section anti -deformation ability significantly enhances, and the stability is better when heavy cutting.

The invention relates to a vertical and horizontal composite pentahedron machining tool of a gantry structure, and relates to the field of machine tool machining equipment, the vertical and horizontal composite pentahedron machining tool comprises a five-face machining device and a tool table, a workpiece can be installed on the tool table, and the five-face machining device can machine the workpiece on the tool table; a plurality of mounting grooves are formed in the tool table, mounting blocks located in the mounting grooves are arranged on the tool table, threaded holes capable of being matched with studs of bolts needed for workpiece mounting are formed in the mounting blocks, the mounting blocks can slide along the mounting grooves so that the threaded holes can be aligned with the mounting holes in the workpiece, and the bolts can be inserted into the threaded holes. And the workpiece is mounted and fixed on the tool table. The tool table has the beneficial effects that in the process that the workpiece is placed on the tool table, it is not needed to adjust the positions of the bolts for alignment many times, so that the workpiece installation time is shortened, and the workpiece installation efficiency is improved.

Provided is a mobile device 10 with a spherical drive system that moves over a travel surface G and comprises four or more rotors 15, 15′, 16, 16′, 17, 17′, 18 and 18′ that are rotationally driven by driving sources 20, 22, 24 and 26 while in contact with four driving spheres 11, 12, 13 and 14 from two different directions, thereby causing the driving spheres to rotate, wherein the centers P1, P2, P3 and P4 of the driving spheres are positioned at the side edges S1, S2, S3 and S4 of a virtual inverted hip roof pentahedron H having a base e disposed at a position higher than the center of each driving sphere and a ridge O disposed at a position lower than the center of each driving sphere, respectively.

The invention relates to the technical field of machining tools, and discloses a gantry type pentahedron machining tool which comprises a tool body, a chip collecting groove and a liquid collecting cavity are formed in the left side and the bottom of the tool body correspondingly, a portal frame is slidably installed at the top of the tool body, a universal machining mechanism is arranged on the right side of the portal frame, and an air injection disc is arranged on the universal machining mechanism. A mounting table is fixedly connected to the bottom of an inner cavity of the lathe bed, and rotating plates and torsion rotating shafts are rotationally connected to the left side and the right side of the mounting table correspondingly. A rotating plate and blocking cloth are controlled to form triangular flow guide areas on the left side and the right side, an air spraying disc is matched to follow to conduct machining blowing on workpieces, and therefore chippings are more easily blown into filter channels on the front side and the rear side, a driving assembly is matched to drive the rotating plate and the blocking cloth to vibrate, and a sliding frame is driven to enable an elastic brush strip to clean the front inner wall and the rear inner wall of a lathe bed; and in cooperation with the driving assembly, the spiral shaft is driven to rotate, the filter channel is driven to vibrate, and the chippings and the cutting fluid can be collected correspondingly.

This utility model discloses a screw-driving fixture for a polyhedral warning light, including a base plate. A fixed frame is fixed to one end of the base plate, and a movable frame is slidably connected to the other end. The movable frame can move towards or away from the fixed frame. A first fixed wheel is rotatably connected to the fixed frame, and a second fixed wheel is rotatably connected to the movable frame. A pentahedral heat sink is positioned between the first and second fixed wheels. Each fixed wheel is movably connected to an adjusting wheel. The adjusting wheel is movably connected to the fixed frame or movable frame on the same side via a magnetic attraction assembly. When the adjusting wheel is rotated and magnetically attracted to the fixed frame or movable frame on the same side via the magnetic attraction assembly, the upper surface of the pentahedral heat sink is in a horizontal state. This fixture can protect the optical structural particles on the warning light's light plate and improve assembly efficiency when screwing the light plate of the warning light onto each plane of the pentahedral heat sink.

The utility model discloses a pentahedral gantry machining center, which belongs to the technical field of gantry machining centers, and comprises a stand column and a bracket moving assembly, the bracket moving assembly comprises a first guide seat and a second guide seat, a first bracket is fixedly arranged at the top of the first guide seat, a second bracket is fixedly arranged at the top of the second guide seat, and the first guide seat and the second guide seat are fixedly arranged on the stand column. A first cover plate is arranged above the first bracket in a hinged mode, a second cover plate is arranged above the second bracket in a hinged mode, a rotating shaft used for driving one end of the first cover plate to rotate as a base point is arranged on the edge of the first bracket, and a rotating shaft used for driving one end of the second cover plate to rotate as a base point is arranged on the edge of the second bracket. The spindle head bracket can be covered when the spindle head bracket is not used, dust is prevented from entering the spindle head bracket, the spindle head is prevented from being placed in a deviated mode, and the phenomenon that the spindle head cannot be installed when automatically assembled again is avoided.

The utility model discloses a pentahedron rotary table for switching grippers in automobile welding, which comprises a rotary motor, a rotary table, a first support table, a second support table, a third support table, a fourth support table and a reserved support table, and the rotary motor is mounted at the bottom of the rotary table and drives the rotary table to rotate. The first supporting table, the second supporting table, the third supporting table, the fourth supporting table and the reserved supporting table are distributed around the rotating table. According to the utility model, the characteristic that the modern automobile welding production line has high requirements on flexibility of multiple automobile types is met.

The application discloses a pentahedron gantry machining center and particularly relates to the technical field of machining tools, which comprises a device main body and a gantry, further comprises a workbench slidingly arranged on the device main body, the top of the workbench is provided with a plurality of inverted T-shaped grooves, a plurality of mounting holes are arranged on the workbench, a shell and a translation mechanism for driving the shell to move horizontally are arranged on one side of the workbench, a plurality of cleaning pieces corresponding to the inverted T-shaped grooves are arranged at the bottom of the shell, a plurality of driving mechanisms for driving the cleaning pieces to move back and forth are arranged in the shell, a collecting shell is arranged on the other side of the workbench, an air pump is arranged at the bottom of the collecting shell, a blowing nozzle is arranged at the top of the collecting shell, and an air pipe is arranged between the air pump and the blowing nozzle. The application avoids the complicated process of traditional manual cleaning, realizes the automatic cleaning and collection of iron filings in the machining process, greatly shortens the downtime cleaning time, and the cleaning piece can scrape the same position multiple times, thereby avoiding the workpiece clamping error caused by the accumulation of iron filings.

The invention provides an electronic component temperature change prediction method and device based on a pentahedron unit, and the method comprises the steps: carrying out the grid division of the pentahedron unit according to the construction parameter information of an electronic component as a target object, and determining a three-dimensional transient heat conduction dominating equation and an initial algebraic equation of a target region in the target object; determining a correction term according to a virtual node domain, a Galerkin weight function, a three-dimensional transient heat conduction dominating equation and an initial algebraic equation defined for the pentahedron unit; correcting the initial algebraic equation according to the correction term to obtain a target algebraic equation, determining a final algebraic equation according to the target algebraic equation and a preset time interval length, and solving the final algebraic equation to obtain a transient heat conduction temperature simulation result; and adjusting design parameters according to the transient heat conduction temperature simulation result, and implementing optimization design of the electronic component according to the adjusted design parameters.

Provided is a mobile device 10 with a spherical drive system that moves over a travel surface G and comprises four or more rotors 15, 15′, 16, 16′, 17, 17′, 18 and 18′ that are rotationally driven by driving sources 20, 22, 24 and 26 while in contact with four driving spheres 11, 12, 13 and 14 from two different directions, thereby causing the driving spheres to rotate, wherein the centers P1, P2, P3 and P4 of the driving spheres are positioned at the side edges S1, S2, S3 and S4 of a virtual inverted hip roof pentahedron H having a base e disposed at a position higher than the center of each driving sphere and a ridge O disposed at a position lower than the center of each driving sphere, respectively.

The invention discloses an active-passive fusion rockburst monitoring system and method for deep roadway tunneling. The system is composed of a regional active detection layer, a local passive monitoring layer, a data processing center and a physically isolated double-optical-fiber ring network. The regional active detection layer adopts a splicable annular track and an electric sliding type vibroseis / seismometer, and the sliding distance is dynamically adjusted according to the real-time measured value of the loose circle; the local passive monitoring layer adopts a pentahedron topology support to arrange microseismic sensors, and the node depth changes adaptively along with the loose circle. The data processing center is integrated with a lightweight double-source CT inversion module, a confidence-weighted double-difference positioning module and a tunneling step-model refreshing mapping table. The speed model local updating of the 1m * 1m * 1m grid can be completed once under the non-shutdown condition when the roadway is tunneled by 50m every time, the volume of a micro-seismic event positioning error ellipsoid is reduced by more than or equal to 30%, and the high-precision, non-blind area and continuous monitoring of a rockburst dangerous area is realized.

A modular three-dimensional assembly comprising a plurality of identical pentahedrons, each with five vertices, eight edges of varying lengths, and five faces— specifically, one right-angled trapezium, three right triangles, and one isosceles obtuse triangle. Each pentahedron face includes at least one coupling mechanism, configured to detachably connect with corresponding mechanisms on adjacent units, utilizing a combination of protrusions and recesses.