56results about How to "Reduced processing performance" patented technology

The invention relates to the technical field of straightening equipment, and discloses an automatic matching straightening machine for shaft workpieces, which comprises a machine body, a plurality of linear sliding rails for a plurality of mechanisms to linearly move are arranged on the machine body, and strip-shaped tooth grooves matched with moving gears are formed in the two sides of the interior of the machine body; one side of the machine body is provided with a PLC (Programmable Logic Controller) control cabinet for calculating input shaft workpiece data information and generating a control signal, and the PLC control cabinet is used for controlling each mechanism on the machine body in an operation process. By adding and arranging the movable detection mechanism, when the shaft workpiece is straightened, the movable detection mechanism adopts a lever type detection structure, can be tightly attached to the surface of the shaft workpiece, sensitively captures bending deformation information of the workpiece, realizes accurate acquisition of deformation, avoids subjectivity and errors of manual detection, and improves the straightening accuracy of the shaft workpiece. And full-length movement detection can be realized along a linear sliding rail, all parts of the shaft workpiece are covered, and the condition of missing detection of a deformation position is avoided.

This utility model relates to a casting mold for an arc-shaped component of an automotive shock absorber, comprising a feed block, a positioning block located behind the feed block and cooperating with it, a base plate located behind the positioning block, and a ejector mechanism located between the base plate and the positioning block; it also includes a movable core block embedded inside the rear side of the feed block and a positioning core block embedded inside the front side of the positioning block and cooperating with it; two side core-pulling assemblies are also provided between the feed block and the positioning block, which are respectively distributed vertically. The side core-pulling assembly includes a slider movably connected to the front side of the positioning block to enable left and right translation and located to the right of the positioning core block, a hydraulic cylinder fixed to the right outer wall of the positioning block, and a side forming block fixed to the left outer wall of the slider; this utility model simplifies the structure and reduces processing and manufacturing steps while ensuring easy demolding, and can process two arc-shaped components simultaneously in a single casting process, thereby improving production efficiency.

The utility model relates to fastener production technical field discloses fastener elastic sheet type catch hook continuous forming mould, including lower mould, the upper surface of lower mould is set up with a plurality of mould grooves, both sides of lower mould all are fixedly connected with two fixed links, the outside slide connection of fixed link has the connecting frame, a plurality of connecting frames between fixedly connected with upper mould, the lower surface of upper mould is fixedly connected with a plurality of modules, the lower surface of lower mould is set up with recess, recess's inside fixed mounting has the step motor, and the output of step motor is provided with anti -drifting subassembly. The utility model discloses utilize two mutually close limit link, fast to the metal sheet that places in a plurality of mould grooves is limited, and promotes the offset metal sheet to correct position, makes it align mould groove and processes, and with the support shell of up -and -down, after the metal sheet is processed into a plurality of catches and is in the mould groove inside, pushes it up, the metal sheet is convenient for from mould groove fast to break out to reduce the adhesion.

The utility model discloses a spinning machine, including main pressure lever, pressure disc, clamping material mandrel and pressure mechanism. Pressure disc and clamping material mandrel are used to clamp work piece between both and drive work piece rotation, and pressure mechanism is used to pressurize to work piece to make work piece spinning forming along the pressure disc periphery surface. Pressure disc is connected in the first end of main pressure lever, and the first end of main pressure lever is equipped with ball head, and the ball socket of shape matching ball head is equipped on pressure disc, and ball head is movably inserted into ball socket, and makes main pressure lever and pressure disc form ball hinge. The spinning machine in the application can adapt to the work piece in the process of wheel spinning manufacturing, realize the adhesion between the pressure disc and the work piece, keep good contact, improve the flatness quality of the work piece in the process of wheel spinning, and reduce the increase process and waste cost caused by instability.

The invention provides a tool servo-driven multi-station metal sheet grooving device, and particularly relates to the technical field of metal sheet grooving machining, the device is based on a base, a first DD motor with a driving mechanism is arranged in the center of the base, and a positioning unit capable of achieving X-axis and Y-axis accurate adjustment is assembled at the top of the base; five sets of feeding conveying units driven by servo motors are evenly arranged on the base along the circumference of the first DD motor, each set of feeding conveying units is matched with a set of grooving machining units, the grooving machining units are in sliding fit with a feeding conveying module through feeding adjusting units, and a cutter set is driven through the servo motors and a synchronous transmission structure to achieve metal sheet grooving operation. The equipment is further provided with a workpiece fixing base matched with the positioning unit and a pentagonal protection structure covering the machining area. According to the equipment, through multi-station circumferential layout and full-servo drive control, automation of the metal sheets is achieved, the efficiency and precision of grooving machining of the metal sheets are greatly improved, and the safety of machining operation is higher.

The utility model discloses a valve position feedback structure and plug valve belongs to plug valve technical field. Include: valve stem, its operating end is set to cylinder structure and forms valve stem cylinder surface, simultaneously valve stem forms valve stem plane along the axial cutting, micro -switch, its setting is in valve stem side part, and micro -switch has trigger button, and trigger button is arranged with valve stem adjacent, wherein, when valve stem is in initial position, valve stem plane is opposite parallel with trigger button and both do not contact, when valve stem rotates, the edge of valve stem plane extrudes trigger button, when valve stem rotates to the maximum opening, valve stem cylinder surface fully oppresses trigger button. Through the cooperation structure of valve position feedback function integration in valve stem and micro -switch, the complex linkage components such as limit switch, connecting rod, corner sensor required by traditional valve are saved, and the number of parts is reduced significantly, and the overall structure compactness and reliability are improved.

The objective of this invention is to minimize the causes of etching defects or pinholes in ultrathin ferroalloy foils with a thickness of 10–30 μm, which are suitable for high-precision metal masks for electronic components. To solve the above-mentioned technical problems, an iron alloy foil is manufactured as follows: comprising C: 0.150% or less, Si: 2.00% or less, Mn: 10.00% or less, Ni: 2.00 to 50.00%, Cr: 19.00% or less, N: 0.20% or less, Al: 0.030% or less, Co: 5.00% or less, Mg: 0.0005% or less, Ca: 0.0005% or less, Ti: 0.01% or less, P: 0.035% or less, S: 0.0300% or less, with the remainder consisting of Fe and impurities; relative to the total mass of inclusions with a particle size of 2.00 μm or more, Al2O3: 30% or less by mass, MgO: 15% or less by mass; among the inclusions with a particle size of 2.00 μm or more, the proportion of inclusions with a particle size of 5.00 μm or less is 80.00% or more.

The invention provides a method for preparing a thermal insulation material by a dry method, the thermal insulation material and a household appliance, and relates to the field of thermal insulation materials. The method for preparing the thermal insulation material by the dry method comprises the following steps: providing a hard shell, wherein the hard shell is provided with a first opening and a second opening which are communicated with an inner cavity of the hard shell; the hard shell is filled with dispersed organic fibers from the first opening in an air blowing mode, so that the heat insulation material is formed. According to the technical scheme, the hard shell can provide high-strength internal and external support for the heat insulation material, the hard shell is filled with the dispersed organic fibers, the heat insulation material has the beneficial effects of being low in heat conduction, easy to process, clean and environmentally friendly, the organic fibers are in a dry state in the processing process in an air blowing mode, and therefore the heat insulation material is not prone to cracking. The final dryness can be ensured, and the processing efficiency is improved; in addition, no additional dispersant is needed, damage of the dispersant to organic fibers can be avoided, and the quality of the thermal insulation material is improved.

This invention discloses a servo continuous interpolation and curve parameterization control method based on a Mitsubishi PLC system, relating to the field of CNC motion control technology. The method includes process parameter conversion and interpolation execution: The system receives user-inputted process parameters at a human-machine interface, including at least the target bending angle; the PLC main controller automatically calculates the coordinate parameters required for the motion control module to execute the interpolation motion based on a preset geometric model and the process parameters. This application lowers the operational threshold by encapsulating complex mathematical coordinate calculations within the program, allowing operators to interact only with intuitive process parameters, enabling even non-professionals to quickly and accurately debug equipment. This application also improves equipment efficiency and flexibility: intelligent continuous interpolation judgment reduces unnecessary starts and stops, increases equipment operating cycle time, and one-click switching between linear / circular modes enhances the equipment's ability to handle different processes.

The utility model relates to driven wheel technical field especially is a machine tool driven wheel device of dust removal function, including driven wheel subassembly, the transmission assembly and the rotating roller are rotatively connected with the inside of driven wheel subassembly, the transmission assembly is fixedly connected with the cleaning assembly between the rotating roller, driven wheel subassembly is fixedly connected with the rotating roller through first screw, the transmission assembly includes cylinder shell, the rear end fixedly connected with the turntable of cylinder shell, the rubber sealing ring is fixedly connected with the outside of turntable, is equipped with the dust removal groove in the inside of turntable, the rubber block is inserted in the dust removal groove, the rubber block is fixedly connected with the turntable through second screw, the cleaning assembly includes arc plate, the rubber scraper is fixedly connected with the outside of arc plate, a plurality of arc plates are fixedly connected with the outside of turbine blade, in the utility model, when the device removes the dust in the inner wall of machine tool driven wheel, does not need to remove driven wheel as a whole, significantly improves the removal efficiency, reduces the operation difficulty, is favorable for sustained production.

The application discloses a sawing machine for improved wood board, which comprises a mounting table, a rotating assembly, a pressing assembly and a cutting assembly. The mounting table is provided with a boss and a support, and the boss is disc-shaped. The rotating assembly is composed of a rotating motor and a rotating table. The motor is fixed to the lower surface of the center of the mounting table, and the output shaft penetrates through the center of the boss. The rotating table is fixed to the free end of the output shaft of the motor, and the lower surface of the rotating table is provided with a groove corresponding to the boss. The pressing assembly comprises a telescopic air cylinder and a pressing structure. The pressing structure is rotatably installed on the output shaft of the air cylinder. The cutting assembly is composed of a sliding rail, a cutting motor and a cutting disc. The cutting motor is installed on the sliding rail, and the cutting disc is fixed to the free end of the output shaft of the motor. The output shaft is telescopic. The sawing machine is provided with the rotating motor and the groove of the boss. The rotating motor is matched with the groove of the boss to realize continuous rotating cutting of the wood board at any angle. In combination with the pressing assembly, the wood board can be clamped in the rotating process, and the process problem of repeated adjustment of the traditional equipment is overcome.

This utility model relates to the field of range hood technology and discloses a range hood. The range hood includes a panel, a back panel disposed behind and opposite to the panel, a mounting plate disposed at the upper end of the panel, and two side panels disposed on the left and right sides of the panel. The panel, back panel, mounting plate, and two side panels form a smoke collection chamber. The panel has a central smoke inlet communicating with the smoke collection chamber. The mounting plate has a smoke inlet portion and an oil guiding portion extending downwards behind the smoke inlet portion. The smoke inlet portion has a top smoke inlet communicating with the smoke collection chamber. The lower end of the oil guiding portion extends to the rear side of the panel and is located above the central smoke inlet. The lower end of the oil guiding portion has an oil guiding groove, and the left and right sides of the oil guiding groove have oil guiding sections sloping downwards towards the side panels. In the left-right direction, the central smoke inlet is located between the left and right ends of the oil guiding groove. This utility model's range hood can effectively improve the oil collection effect and enhance the user experience.

A kind of double electrode arc seal glue structure's intelligent ring, it includes: ring body;Intelligent electrical component is fixed in the inside of the ring body;Seal glue layer is encapsulated in the inside of the ring body, and the intelligent electrical component is covered;The intelligent electrical component includes double sensor electrode;The double sensor electrode is embedded in the seal glue layer, and the electrode contact end of the double sensor electrode is exposed to the inner surface of the seal glue layer;The inner surface of the seal glue layer is continuous smooth circular arc surface, and the outer peripheral surface of the seal glue layer is adapted and closely adheres to the inner side wall of the ring body, the inner surface of the seal glue layer is set as continuous smooth circular arc surface, the convex platform and step structure in the prior art are completely cancelled, and the smooth wearing surface without convex and step is formed in the inside of the ring body.When wearing, the inner ring of the ring is in uniform contact with the finger, does not jam hand, does not press finger, does not cover sweat, and is more friendly for long-term wearing.

This utility model relates to a simple clamping fixture for metal processing, belonging to the technical field of metal processing equipment. The clamping module includes a first clamping block made of titanium alloy, which is a flat metal block with a semi-circular appearance. The first clamping block is guided and connected to a second clamping block via a limiting rod. The second clamping block is made of the same material and has the same appearance as the first clamping block. The second clamping block can maintain relative clamping with the first clamping block at different opening and closing angles on a three-jaw chuck via the limiting rod. This utility model provides a simple clamping fixture for metal processing with a convenient structure, simple and quick operation, and the ability to accurately align the center of block-shaped metal materials, reducing excessive cutting losses during processing.

The utility model provides a kind of for automobile parts's pull riveting workstation, including base, transmission belt and slide, base one side is equipped with positioning hole, the other side is equipped with slide rail, positioning hole is equipped with driving shaft, auxiliary shaft, transmission belt inner face is arranged at the outer periphery of driving shaft and auxiliary shaft;Slide and slide rail are connected, slide and transmission belt are opposite, slide top is equipped with mounting groove, slide one side is equipped with telescopic shaft, the other side is equipped with extruding block, transmission belt one side is equipped with fixture mechanism, fixture mechanism includes chassis, clamping seat and clamping block;Chassis is fixed in transmission belt one side, clamping seat one side is equipped with protruding key block, key block is arranged in the key groove of chassis, clamping block is arranged in clamping seat one side;The utility model has the beneficial effects that: its structure design is simple and reasonable, with the effect of reducing the need to pause processing first, then change workpiece processing.

The application provides a modular mold and design method for product variants, comprising a mold body model, the forming surface of the mold body model has at least one movable block embedding slot; a movable block, the movable block has at least one movable block, the movable block is detachably connected with the mold body model through a fastening assembly, so that the movable block has an assembly position matched with the mold body model, and the movable block has a separation position from the mold body model, the movable block is used to constitute a variant structure mold of a target product when being located at the assembly position, the movable block is arranged in the movable block embedding slot, and the mold body model is used to constitute a basic type structure mold of the target product when the movable block is located at the separation position. The application at least solves the technical problem that the mold design corresponding to multiple variant products in the prior art has poor universality.

The application discloses a preparation method of a composite lithium-rich lithium supplement additive, and lithium ferrite is taken as a core, NiO@ lithium salt is prepared by adopting an ALD atomic deposition method, and the composite lithium-rich lithium supplement additive is prepared by fully mixing and uniformly sintering the carbon-coated lithium ferrite and the NiO@ lithium salt. The application fully gives play to the advantages of high lithium supplement capacity of lithium ferrite, low gas production of lithium nickelate and good environmental adaptability, and obtains a lithium supplement agent with high capacity and good stability; the contact of nano-nickel protoxide and the lithium salt coating layer prepared by the ALD method is sufficient, which is beneficial to subsequent sintering, can be prepared at a lower temperature, is beneficial to cost reduction, and the residual lithium on the surface of the core lithium ferrite can be obtained through the solid solution reaction of the nickel protoxide and the peripheral lithium salt coating layer, and the 'double-channel lithium acquisition mode' can reduce the overall residual alkali amount of the material, which is beneficial to improving the subsequent battery slurry processing performance.

The utility model discloses a kind of hydraulic bearing devices for twenty-roller mill frame machining, including outer sleeve, end cap, inner sleeve and extension sleeve, inner sleeve is coaxially arranged in the inner side of outer sleeve, and the extension sleeve coaxial with it is integrally formed and processed in one end of outer sleeve, the inner diameter of extension sleeve is less than the inner diameter of outer sleeve and forms step at the interface of both;The other end of outer sleeve is fixedly connected with end cap by bolt, and through hole for high-precision boring bar is provided in the middle of end cap. The hydraulic bearing device can make the tooling composed of high-precision wallboard and high-precision boring bar and the like, ensure the machining precision of mill frame plum-blossom cavity, make the deformation of roll system extremely small during rolling process, obtain very accurate thickness deviation in the whole width direction of rolling, and have the advantages of simple operation, high reliability, low cost and the like.

The invention discloses a sectional switching control method and a sectional switching control system for reciprocating wire moving abrasive wire cutting tension, and belongs to the technical field of numerical control machining. The problems of violent sudden change during reciprocating wire moving reversing, high-frequency shaking at a constant speed and other non-uniform tension are solved. Starting a closed-loop control strategy based on tension real-time feedback in a constant-speed wire feeding stage based on real-time acquisition of a wire cylinder reversing electric signal; and in the reversing wire feeding stage, closed-loop control is closed, and feed-forward compensation cooperative mechanical buffer unit control synchronously triggered by a reversing signal is started. Correspondingly, a system for implementing the method is provided and comprises a tension detection unit, a tension execution unit, a mechanical buffering unit and a control unit. The control unit can achieve independent compensation of tension disturbance of the motor end and the hand wheel end of the wire cylinder. Through segmented switching control and electromechanical cooperative compensation, the tension reversing fluctuation is controlled within + / -1N, and the constant-speed fluctuation is controlled within + / -0.2 N, so that the single-side wire loosening phenomenon is effectively improved, and the stability of reciprocating wire moving sand wire cutting is improved.

The utility model relates to the technical field of centrifugal pumps, in particular to a pump body mounting structure for a centrifugal pump, which comprises a centrifugal pump body, a mounting component is arranged at the bottom of the centrifugal pump body and comprises a bottom plate, sliding grooves are symmetrically arranged at two ends of the inside of the bottom plate, and the sliding grooves are communicated with the bottom plate. Sliding columns are slidably connected to the interiors of the sliding grooves, protruding plates are fixedly connected to one ends of the bottoms of the sliding columns, a mounting platform is arranged at the bottom of the mounting assembly, the distance between the two protruding plates is adjusted by synchronously sliding the two sliding columns in the sliding grooves oppositely or oppositely, and front-back clamping of the protruding plates to the mounting platform is achieved. According to the structure, accurate centering of the front and back positions of the centrifugal pump body and the mounting platform is achieved, front and back clamping and fixing of the mounting platforms with different widths are achieved, the applicable range of pump body mounting is widened, the stability of pump body mounting is improved through the structure, and compared with traditional mounting and fixing of bolts one by one, the pump body mounting efficiency and operation convenience are improved.

This invention relates to the field of laser processing technology for hot-rolled coils, and provides a laser cutting device for hot-rolled coil processing, including a frame: a laser cutting machine is fixedly connected to the inner wall of the frame, and a cutting baffle is fixedly connected to the outer wall of the laser cutting machine; a feeding monitoring mechanism, a feeding correction mechanism, and an anti-tilting mechanism are provided on the inner wall of the upper feeding port of the frame; and guide rollers are provided on the inner wall of the upper feeding port of the frame. Through the arrangement and coordinated use of the frame, laser cutting machine, feeding monitoring mechanism, feeding correction mechanism, and guide rollers, this structure systematically solves the problem in the prior art of hot-rolled coils shifting due to changes in the cutting path, resulting in defective products on the edges, by using a closed-loop control logic of "monitoring-feedback-correction-limiting". This significantly reduces the workload of manual inspection and intervention and the processing error rate.

The invention discloses a MicroLED micro display device and a preparation method thereof. The preparation method comprises the following steps: providing a driving substrate and a plurality of first epitaxial wafers emitting first color light; patterning the first epitaxial wafer to form a plurality of first epitaxial partitions which are distributed at intervals and have epitaxial structures; the first epitaxial wafer is cut to form a plurality of first epitaxial sub-wafers with preset shapes, and each first epitaxial sub-wafer is provided with a plurality of first epitaxial partitions; bonding the plurality of first epitaxial sub-wafers on a driving substrate in sequence to form a first bonding wafer; and processing and forming a plurality of first light-emitting units which are provided with epitaxial structures and are separated from one another on the first bonding sheet. The wafer reconstruction technology is adopted, a large-size driving substrate does not need to be cut, small-size monochromatic epitaxial wafers are processed into epitaxial sub-wafers, then the epitaxial sub-wafers are bonded to the driving substrate one by one, the epitaxial sub-wafers are fully paved to the maximum extent, invalid waste of driving substrate materials is avoided, and the auxiliary material cost and the overall production cost are remarkably reduced.

The utility model provides a battery pack which comprises a box body, an installation cavity is formed in the box body, an installation opening is formed in the top of the box body, the top of the installation cavity is communicated with the installation opening, and the installation cavity is provided with a bottom wall and a side wall; a plurality of battery cells are arranged, and the plurality of battery cells are sequentially arranged in the mounting cavity along the length direction of the mounting cavity; the press-fitting part is arranged at the tops of the plurality of battery cells, and the press-fitting part is propped against the top surfaces of the plurality of battery cells respectively; wherein the mounting cavity limits the positions of the plurality of battery cells along the length direction and the width direction of the mounting cavity, and the press-fitting part is matched with the mounting cavity to limit the positions of the plurality of battery cells in the height direction in the mounting cavity. The battery pack in the scheme is relatively low in assembly cost.

This invention discloses a briquetting device for recycling non-ferrous scrap metal, relating to the field of metal resource recycling technology. It includes a forming box, a feeding mechanism, a briquetting mechanism, and an atmosphere protection mechanism. A controller is fixedly installed on one outer wall of the forming box, and a weighing plate with a built-in weight sensor is fixedly installed on the bottom inner wall of the forming box. This invention uses a rodless cylinder-driven reciprocating feeding cylinder, combined with a screw feeder and a laser ranging probe, to achieve multi-layer, multi-point uniform distribution of material within the forming box. This effectively avoids the problem of uneven briquetting density distribution caused by material accumulation on one side in traditional devices, improving the overall density consistency of the briquetting. The weighing plate with the built-in weight sensor accurately measures the weight of the material for each briquetting operation, and combined with an ultrasonic thickness sensor to detect the thickness of the briquetting blocks after forming, this invention ensures that the weight and thickness of each briquetting block are within the set range, meeting standardized production requirements.

The utility model discloses a laser cutting equipment positioning and lifting device which comprises a supporting table, a first screw rod and a second screw rod are arranged on the supporting table, and one end of the first screw rod and one end of the second screw rod are both fixedly connected with circular gears. The outer surfaces of the two circular gears are sleeved with gear belts, a clamping mechanism and a supporting mechanism are arranged on the first screw rod and the second screw rod correspondingly, and the thread pitch of threads on the first screw rod is two times that of threads on the second screw rod. And the supporting mechanism on the second screw rod is always positioned in the middle position of the pipe fitting. According to the utility model, through the specific proportion setting of the screw pitches of the first screw and the second screw, the supporting mechanism on the second screw can be ensured to be always accurately positioned in the middle position of the pipe fitting when the first screw drives the clamping mechanism to move the pipe fitting, so that the pipe is prevented from shaking or deviating due to inaccurate supporting position; therefore, the cutting precision and quality are improved.

The gearbox casting structure comprises a box body and a box cover, the box body and the box cover are both independent casting parts and form a containing cavity after covering, the containing cavity comprises a first cavity body and a second cavity body, first shaft holes are symmetrically formed in the two side walls of the first cavity body, second shaft holes are symmetrically formed in the two side walls of the second cavity body, and the first shaft holes are communicated with the second shaft holes. The center distance between the first shaft hole and the second shaft hole is adjustable. The first shaft hole and the second shaft hole are formed in the corresponding positions of the first cavity and the second cavity respectively, and universal production of gear box castings is achieved through the modular casting technology and the design that the center distance of the shaft holes of the same casting can be adjusted. Different model requirements of a series of units can be met only by adjusting the positions and the sizes of the shaft holes through machining, the mold development types and the machining procedures are reduced, the production cycle is remarkably shortened, the manufacturing cost is reduced, assembly errors and deformation are reduced, and the production efficiency and the unit quality are improved.

The utility model provides a kind of liquid cooling plate structure, battery pack and vehicle, it is related to battery technical field, liquid cooling plate structure includes liquid cooling plate main body and multiple supports, the liquid cooling plate main body includes first liquid cooling plate and second liquid cooling plate, the first liquid cooling plate with the second liquid cooling plate is configured integrated structure;The second liquid cooling plate includes liquid cooling plate body and is sequentially communicated with the liquid inlet structure, cooling flow channel and liquid outlet structure being arranged on the liquid cooling plate body, the liquid inlet structure is used to connect the water outlet of the battery cooling module of vehicle, the liquid outlet structure is used to connect the water return of the battery cooling module;The upper portion of the first liquid cooling plate is used to install battery module;Multiple supports are spaced distribution and respectively with first liquid cooling plate configured integrated structure, support is used to be fixedly connected with battery module.The utility model not only reduces the manufacturing difficulty and cost of liquid cooling plate structure, but also can improve the structural stability and reliability of liquid cooling plate structure.

This invention discloses a hand-eye calibration method based on the registration of a planar polygonal contour point set. The steps are as follows: S1, design a calibration reference object with a polygonal contour; S2, use a line laser contour sensor on the end flange of a robot to perform multi-point scanning on each edge contour at different poses to collect multiple point cloud contour data; S3, set the ideal target position of the calibration reference object, construct a target vertex set, and initialize the hand-eye calibration parameters; S4, construct a fitting vertex set of the polygonal contour based on the point cloud contour data, and perform coarse registration with the target vertex set; S5, construct a coarse registration contour feature point set and a coarse registration projection feature point set based on the ideal target position, and obtain the optimal solution for the hand-eye calibration parameters by minimizing the distance difference between the matching point pairs of the two; S6, design a hand-eye calibration performance evaluation index to evaluate and select the optimal solution for the hand-eye calibration parameters. This method has high registration efficiency and accuracy, low cost, and good stability.

The utility model relates to the technical field of petroleum and natural gas perforating equipment, and provides a directional perforating gun capable of automatically selecting angles to solve the problems that an existing directional perforating gun is complex in design, long in design period, unchangeable in targeted fixed direction and angle design, not universal with other designs and limited in use. Comprising a gun barrel and a directional bullet frame assembly, and a bullet frame pipe in the directional bullet frame assembly is rotationally installed in an inner cavity of the gun barrel through bearing assemblies at the two ends; balancing weights are installed at the two ends of the elastic frame pipe and between the bearing assemblies at the two ends. The balancing weight and the bullet frame pipe are separately designed and mounted, and mounting of the perforating bullet is not affected when the balancing weight is mounted. The balancing weight comprises a balancing weight seat which is provided with a plurality of positioning screw holes in different directions; the bullet rack pipe is provided with a plurality of bullet holes of the same type, the bullet rack pipe is connected with the counterweight seat through the positioning screws, the bullet holes can correspond to the positioning screw holes in different directions, the directional angle can be manually selected for installation during use, and use is convenient and flexible.

The application provides a top connecting structure of a platform door, which comprises a vertically extending connecting column, an upper end of the connecting column is provided with a first connecting piece which is detachably connected with a top beam, and a lower end of the connecting column is provided with a second connecting piece which is detachably connected with a platform door body. A first adjusting piece is arranged between the first connecting piece and the connecting column, and the relative distance between the first connecting piece and the connecting column can be adjusted along the vertical axis of the connecting column to realize overall height adjustment. The first connecting piece is provided with a waist-shaped connecting hole, and the long axis of the waist-shaped connecting hole is parallel to the length direction of the top beam, and the position of the first connecting piece can be adjusted along the length direction. At least one third connecting piece is arranged on the connecting column between the first connecting piece and the second connecting piece, and a second adjusting piece is arranged between the third connecting piece and the top beam, and the relative distance between the third connecting piece and the top beam in the direction perpendicular to the axis of the connecting column can be adjusted. The structure has multi-direction adjusting capability, can adapt to complex environments such as inconsistent top beam height and uneven length direction, reduces repeated adjustment and on-site processing during installation, improves efficiency, and reduces cost and difficulty.