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52 results about "Quadratic element" patented technology

Modeling method of plate rolling in online control model

The invention relates to a modeling method of plate rolling in an online control model, which carries out the modeling by a rigid-plastic finite element method. The modeling method comprises the following steps: taking a central line of a plate as an x shaft and the thickness direction of the plate as a y shaft to build a two-dimension plane strain rolling model; inputting rolling conditions and parameters; dividing finite element grids in a rolling deformation region at the lower side of the rolling contact region by adopting a quadratic element and carrying out finite element pretreatment; setting the initial speed field of the finite element; building a rigid-plastic finite element energy functional by taking the initial speed field as an initial value, iterating and solving a minimum value point of the energy functional by adopting the damping Newton method, and obtaining the actual speed field; calculating the strain field and the strain field according to the actual speed field, further calculating online control parameters of the rolling force, the rolling torque and the forward slip value, and obtaining the plate rolling model. The invention improves the calculation speed of the finite element, realizes the online rapid calculation and control of the rigid-plastic finite element of the plate rolling and has strong antijamming capacity and good stability.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Method of preparing aluminum base board short groove holes

ActiveCN103068170AThere is no problem of offset deformationIncrease productivityPrinted circuit manufactureEngineeringQuadratic element
The invention discloses a method of preparing aluminum base board short groove holes. The method of preparing the aluminum base board short groove holes comprises the following steps: due to the fact that multiple relationship range between the length of the groove and the width of the groove is that 1.0 time the width of the groove is smaller than the length of the groove which is smaller than 2.0 times the width of the groove, a plurality of multiple relationships between the length of the groove and the width of the groove, corresponding to different groove holes, are designed. Machined groove holes, after cutting an aluminium sheet, served as a drilling belt to drill, and the offset of the drilling result is measured through quadratic element. According to an acquired measure result, the designed groove hole is compensated in reverse angle to make drilling belt data. Drilling is performed according to the drilling belt data. Targeted on procession drilling belt of the short groove hole, according to the proportional relationship between the length of the groove hole and the width of the groove hole, certain angle is compensated, and therefore the drilled groove hole is prevented from skewing and deforming. And guiding hole drilling hole is not needed, production efficiency and production quality is greatly improved, and production cost is reduced.
Owner:KINWONG ELECTRONICS TECH LONGCHUAN

Tempered glass quality automatic detection device

The present invention belongs the glass quality detection field, especially relates to a tempered glass quality automatic detection device. The tempered glass quality automatic detection device comprises a workbench, a flatness and thickness detection mechanism, a quadratic element detection mechanism, a stress detection mechanism, a delivery mechanism and a control mechanism, wherein the flatness and thickness detection mechanism, the quadratic element detection mechanism, the stress detection mechanism, the delivery mechanism and the control mechanism are arranged on the workbench. The flatness and thickness detection mechanism, the quadratic element detection mechanism and the stress detection mechanism are uniformly distributed at the periphery of the delivery mechanism. The flatness and thickness detection mechanism, the quadratic element detection mechanism, the stress detection mechanism and the delivery mechanism are connected with the control mechanism. When the quality of glass is detected through the adoption of the tempered glass quality automatic detection device, workers only dispose the glass to be detected onto the delivery mechanism, the control mechanism is configured to control the transmission of the delivery mechanism, and the glass to be detected is delivered to each detection mechanism along with the delivery mechanism, therefore the quality detection of the glass is completed. According to the invention, the automatic detection is realized, the manual intervention time is decreased, and plenty of labors are saved.
Owner:SUZHOU PTC OPTICAL INSTR

Method for determining PCB (printed circuit board) inner layer film compensation coefficient

ActiveCN106852030AEnsure that the press fit is free of rivetingImprove Layer-to-Layer AlignmentMultilayer circuit manufactureX-rayEngineering
The invention provides a method for determining the PCB (printed circuit board) inner layer film compensation coefficient. The method comprises the following steps of (1) designing an inner layer film; (2) performing primary measurement on an expansion and shrinkage value in a measuring mode of performing quadratic element measurement on each layer of board of an etched PCB and then calculating the expansion and shrinkage extreme difference; (3) performing secondary measurement on the expansion and shrinkage value in a measuring mode of performing X-RAY measurement on each layer of board of the PCB subjected to board pressing and then calculating the expansion and shrinkage extreme difference; (4) determining the compensation coefficient of each inner layer film according to the obtained expansion and shrinkage extreme difference. The method has the advantages that the inner layer film compensation coefficient is obtained through comparing different expansion and shrinkage data; the PCB lamination expansion and shrinkage can be controlled; the influence on the PCB alignment precision is reduced; the method is practical; the operation is easy; the cost is low; the rejection rate of the multilayer board can be effectively reduced.
Owner:奥士康精密电路(惠州)有限公司

Multifunctional precision mapping measuring instrument practical training table

PendingCN109506588AImprove high-end precision measurement skillsCosmonautic condition simulationsUsing optical meansMeasuring instrumentQuadratic element
The invention discloses a multifunctional precision mapping measuring instrument practical training table. The practical training table comprises a practical training table body and numerical operation station. The practical training table comprises a base, a sliding block, a supporting seat, a deflection inspecting instrument, an X-axis sliding table, a Y-axis sliding table, a Z-axis sliding table, an imaging measuring instrument probe and a three-coordinate probe, the base is provided with a spare part kit, the Y-axis sliding table is fixedly installed on the base, the sliding block is slidably installed on Y-axis sliding table, the X-axis table is slidably installed on the sliding rail, the deflection inspecting instrument is fixedly installed at one end of the Y-axis sliding table, thesupporting seat is fixedly installed on the base, the Z-axis sliding table is slidably installed on the supporting seat, and the imaging measuring instrument probe and the three-coordinate probes arefixedly installed on the Z-axis sliding table. The practical training table has the advantages that by the arrangement of the spare kit, the deflection inspecting instrument, the imaging measuring instrument probe and the three-coordinate probe, measuring learning training can be completed with the help of quadratic elements and three-coordinate measuring software matching with a three-dimensional sliding table, the imaging measuring instrument probe and the three-coordinate probe.
Owner:卫国教育科技(河源)有限公司 +2

Double-dynamic quadratic-element internal robot

The invention discloses a double-dynamic quadratic-element internal robot, which comprises a base, a mechanical arm connected with the movable base, a vertical driving assembly set on the base for driving vertical movement of the mechanical arm, the first horizontal driving assembly and the second horizontal driving assembly fixed to the mechanical arm, and the first manipulator and the second manipulator for sliding connection. The first horizontal driving assembly drives the horizontal movement of the first manipulator, and the second horizontal driving assembly drives the horizontal movement of the second manipulator. The invention relates to a mechanical arm which is provided with two manipulators which are controlled by different driving motors. The two manipulators can move independently and horizontally without interfering with each other, and the mechanical arm and the mechanical arm do not interfere with each other. In addition, the horizontal driving motor is arranged on both sides of the base, so that the structure of the double-dynamic quadratic-element internal robot is more compact and beautiful. At the same time, the tension wheel seat provided on both sides of the horizontal driving motor makes the timing belt to move closer to the main body of the transverse arm to avoid the influence of the timing belt on the base.
Owner:LEN SEIKI SHENZHEN

Semi-automatic carton opening machine

The invention relates to a semi-automatic carton opening machine which comprises a PLC (Programmable Logic Controller), a quadratic element movement mechanism, a conveying roller, a pneumatic side pressing device, a front block, a sensor, a touch screen, a control cabinet, a control cabinet support, an organ type protection cover, a part taking and placing station and a cutting station. The touch screen is located on the outer side of the control cabinet. The organ type protection cover is located on the side edge of the control cabinet support. The part taking and placing station is located on one side of the organ type protection cover. The cutting station is located at the lower portion in the control cabinet. The front block is located on one side of the conveying roller. The pneumatic side pressing device is located on one side of the cutting station. The sensor is arranged on the front block. The PLC is electrically connected with a servo motor system of the quadratic element movement mechanism, the sensor, the touch screen, a conveying roller motor, a front block starting switch and a starting switch for starting a pressure testing device. The semi-automatic carton opening machine is simple in structural design and high in performance cost ratio, the quadratic element movement mechanism is high in movement speed and good in movement precision, and extremely-high cutting efficiency can be provided.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1

Parameter determination device for cutter of quadratic element image measurer

The invention relates to a parameter determination device for a cutter of a quadratic element image measurer. The middle part of a fixture base is adjustably connected with a cutter axle center finding and axial positioning mechanism and a sliding block through a connecting groove. The right end of the fixture base is adjustably connected with a pressing stirring mechanism. The sliding block is positioned between the cutter axle center finding and axial positioning mechanism and the pressing stirring mechanism. A locking mechanism is arranged on each of the cutter axle center finding and axial positioning mechanism and the sliding block. A second V-shaped positioning plate is fixedly connected to the front end face of the sliding block, and a first V-shaped positioning plate is fixedly connected to the right end face of the fixture base. The cutter is positioned and centered by the axle center finding and axial positioning mechanism and the V-shaped positioning plates to facilitate the accurate clamping of a product, parameters such as circular runout of the cutter are conveniently measured by the pressing stirring mechanism, the whole tool is unlimited to the parameter measurement of the cutter in a certain specification, and the pressing stirring mechanism is adjusted upwards and downwards to ensure practicability for cutters in different specifications.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Multi-station quadratic element mechanical arm for hardware punching machining

The invention discloses a multi-station quadratic element mechanical arm for hardware punching machining. The multi-station quadratic element mechanical arm comprises a material suction air cylinder and an arm body. A plunger rod of the material suction air cylinder is connected with a vacuum suction cup. A material frame jacking oil cylinder is arranged under the vacuum suction cup. A to-be-machined material is placed on the material frame jacking oil cylinder. The arm body is arranged on left-right movement linear guide rails on the two sides. The left-right movement linear guide rails are arranged on a motor box. The left end of the arm body is located under the vacuum suction cup. The left-right movement linear guide rails are connected with a transmission mechanism through an openingand closing movement linear guide rail. The transmission mechanism is connected with an arm left-right movement servo motor. The two sides of the arm body are provided with a clamp A and a clamp B. According to the multi-station quadratic element mechanical arm for hardware punching machining, multi-procedure production can be finished through one-person operation production, the labor cost is reduced, a fault checking and knowing device is arranged, punch automation can be matched, running and producing are uninterrupted, and the production efficiency is greatly improved.
Owner:中山市新泰五金制品有限公司

Quadratic element manipulator

The invention relates to a quadratic element feeding manipulator. The manipulator comprises a vibration feeding disc, a material distributing mechanism, a horizontal sliding driving device and a feeding manipulator, the feeding manipulator comprises a clamping jaw opening driving device, a clamping jaw opening driving plate and a plurality of clamping jaws, a left clamping arm and a right clampingarm of each clamping jaw are arranged in the left-right direction of the horizontal sliding driving device in a sliding opening and closing mode, a plurality of clamping jaw opening driving blocks are arranged on the clamping jaw opening driving plate side by side, and the clamping jaw opening driving blocks are located between the left clamping arms and the right clamping arms. According to theinvention, the vibration feeding disc, the horizontal sliding driving device, the material distributing mechanism and the feeding manipulator are arranged, so a plurality of workpieces can be continuously conveyed; and the multiple clamping jaws of the feeding manipulator can convey the workpieces punched in the previous punching procedure of the punching machine to the next punching procedure forpunching at the same time, so that the punching machine can conduct continuous punching on the multiple workpieces at the same time, the workpiece conveying efficiency is high, the production efficiency is high, and full-automatic continuous high-speed production can be achieved.
Owner:FOSHAN SHUNDE KAISHUO PRECISION MOLD AUTOMATION TECH CO LTD

Alignment stability process for outer layer film design

The invention discloses an alignment stability process for outer layer film design. The alignment stability process comprises the following steps of performing film manufacturing, alignment circle designing, verification circle designing, positioning hole drawing, film positioning hole forming, circuit board positioning hole forming, and film alignment and alignment detecting, wherein in the step1), the obtained three-dimensional data needs to satisfy dimensional and surface precision condition needed in growth amplification; in growth amplification, a two-dimensional model is subjected to transition and fusion treatment based on partial similarity of three-dimensional lines on a sample; the alignment circles of an alignment circle arrangement structure and verification circles of a verification circle arrangement structure are both linearly arranged; the alignment circles of the alignment circle arrangement structure and verification circles of the verification circle arrangement structure are both positioned on the linear initial positions; and in the step 7), for ensuring film alignment precision, expansion and shrinkage needs to be measured accurately on quadratic element. Theprocess has a simple structure, convenience in manufacturing, and capability of effectively improving film alignment precision and alignment speed and improving use convenience.
Owner:KIN YIP TECHNOLDGY ELECTRONICS HUI ZHOUCO LTD

Stress quadratic element detecting integrated machine

The invention belongs to a field of optical detection and especially relates to a stress quadratic element detecting integrated machine capable of performing tempered glass stress detection and quadratic element information detection at the same time. The stress quadratic element detecting integrated machine includes a working table board. The working table board is provided with a stress detection mechanism and a quadratic element detection mechanism. The stress detection mechanism is arranged on the working table board and performs stress detection on a to-be-detected sample. The quadratic element detection mechanism is arranged across the stress detection mechanism and performs quadratic element detection on the to-be-detected sample. Therefore, by utilizing the stress quadratic element detecting integrated machine, stress detection and quadratic element information detection can be performed on the to-be-detected sample at the same time. The manufacture cost is reduced; the floor occupancy is saved; requirements to a detection field are lowered; only one detection worker is needed during a detection process, so that a large amount of man power is saved. Besides, the to-be-detected sample does not need to be moved again and again during the whole detection process, so that risks of damages to the to-be-detected sample are reduced and the detection efficiency is improved. The stress quadratic element detecting integrated machine has a broad market prospect.
Owner:SUZHOU PTC OPTICAL INSTR

Measuring device for tool parameters of a two-dimensional image measuring instrument

The invention relates to a parameter determination device for a cutter of a quadratic element image measurer. The middle part of a fixture base is adjustably connected with a cutter axle center finding and axial positioning mechanism and a sliding block through a connecting groove. The right end of the fixture base is adjustably connected with a pressing stirring mechanism. The sliding block is positioned between the cutter axle center finding and axial positioning mechanism and the pressing stirring mechanism. A locking mechanism is arranged on each of the cutter axle center finding and axial positioning mechanism and the sliding block. A second V-shaped positioning plate is fixedly connected to the front end face of the sliding block, and a first V-shaped positioning plate is fixedly connected to the right end face of the fixture base. The cutter is positioned and centered by the axle center finding and axial positioning mechanism and the V-shaped positioning plates to facilitate the accurate clamping of a product, parameters such as circular runout of the cutter are conveniently measured by the pressing stirring mechanism, the whole tool is unlimited to the parameter measurement of the cutter in a certain specification, and the pressing stirring mechanism is adjusted upwards and downwards to ensure practicability for cutters in different specifications.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

A method of calibrating the distance between axes

The invention relates to the mechanical field, in particular to a shaft distance calibrating method. The method comprises the following steps that 1, a drilling shaft or a threading shaft of a drilling-threading machine is selected as a coordinate reference shaft, and machining files of three holes are written, wherein the machine coordinate of the first hole is (0,0), any X and Y machine coordinate of the second hole accords with the corresponding coordinate of the first hole, and the machine coordinate of the third hole is an any value; 2, the first hole and the second hole are machined on a circuit board through a reference shaft of the drilling-threading machine, and the third hole in machined on the circuit board through the other shaft; 3, the actual coordinate value of the third hole in the circuit board is detected through quadratic element detection equipment; and 4, according to the difference value between the machine coordinate of the third hole and the actual coordinate, the shaft distance between the two shafts of the drilling-threading machine is calculated. The shaft distance calibrating method is easy and practical, the machining precision problem caused by deformation caused by thermal expansion of workpieces and a mechanical structure is solved, and equipment machining performance is improved.
Owner:HANS CNC SCI & TECH

Quadratic-element manipulator with small machine table

PendingCN107097254AIncrease the movable distanceReduce the transfer linkArmsMotor speedDrive wheel
The invention discloses a quadratic-element manipulator with a small machine table. The quadratic-element manipulator comprises a base, a lifting assembly arranged on the base, a moving cross arm fixing frame assembly arranged at the top end of the lifting assembly, a moving cross arm assembly arranged on the moving cross arm fixing frame assembly, and a grabbing jaw moving assembly arranged on the moving cross arm assembly, wherein the moving cross arm assembly comprises a moving cross arm drive device arranged on the moving cross arm fixing frame assembly and composed of a motor speed reducer, a cross arm drive wheel connected to the moving cross arm drive device through a transmission connection shaft, and a moving cross arm slidably arranged on the moving cross arm fixing frame; and a cross arm drive belt used cooperatively with the cross arm drive wheel is arranged on the moving cross arm. According to the quadratic-element manipulator disclosed by the invention, the movable distance of a grabbing jaw is greatly increased through the arrangement of the moving cross arm assembly and the grabbing jaw moving assembly which are used cooperatively; and a workpiece can be directly transferred between two stations, and a workpiece transfer link is reduced, so that production efficiency is increased.
Owner:SUZHOU SHENYUN ROBOT
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