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2215results about "Mechanical thickness measurements" patented technology

Hub characteristic detecting device for production line

InactiveCN102636093ASimple and reliable stepsNo additional displacementMechanical thickness measurementsUsing optical meansProduction lineHorizontal transmission
The invention discloses a hub characteristic detecting device for a production line. The hub characteristic detecting device is characterized by comprising a horizontal transmission mechanism, a positioning mechanism, an offset detecting mechanism, a thickness detecting mechanism and an imaging mechanism, wherein a rotating shaft of a hub is vertically arranged at one end of the horizontal transmission mechanism, moves to the position of the positioning mechanism horizontally and stands on a conveying belt naturally after being horizontally positioned; in the standing process, the offset detecting mechanism and the thickness detecting mechanism are controlled to acquire hub offset and thickness data, and carries out imaging processing from the top surface of the hub by the imaging mechanism; and finally, the hub is conveyed out by the horizontal transmission mechanism in a same posture. The posture of the hub is constant in the detecting process, the hub keeps standing after being horizontally positioned by the positioning mechanism once till being output finally, so that the step is simple and reliable, no additional displacement is caused. The hub characteristic detecting device disclosed by the invention has the advantages that low efficiency and worse consistency of manual operation are avoided, the detecting speed is high, the period is very short and the detecting consistency is good.
Owner:厦门宣凯精密制造有限公司

Clamping equipment for part machining

The invention relates to the technical field of clamping devices, in particular to clamping equipment for part machining. The clamping equipment comprises a fixing platform; a fixing mechanism and a driving mechanism are arranged below the fixing platform; the fixing mechanism comprises two fixing seats; a transversely-arranged bidirectional screw rod is rotationally connected between the two fixing seats; a sliding plate is in threaded connection to each of two threaded parts of the bidirectional screw rod; two sliding blocks are arranged between the two sliding plates; fixing blocks for fixing steel pipes are arranged on the two sliding blocks; compression springs are fixedly connected between the fixing blocks and the sliding blocks; first measuring mechanisms are connected between thefixing blocks and the sliding blocks; and a second measuring mechanism is further fixed to the upper end of the fixing platform. The first measuring mechanisms are used for measuring the pre-tightening force on the clamped steel pipes in real time, the bidirectional screw rod is rotated, the pre-tightening force on the steel pipes is close to the reference pre-tightening force, and thus the pre-tightening force for clamping the steel pipes is measured, regulated and controlled.
Owner:重庆亿普机电有限公司

Quality testing system for friction discs

The invention discloses a quality testing system for friction discs. The quality testing system consists of a first defect detection device, a second defect detection device, an internal tooth stick distance detection device, a thickness and flatness detection device, and a controlling and managing machine, wherein the first defect detection device, the second defect detection device, the internal tooth stick distance detection device and the thickness and flatness detection device are sequentially arranged, and the controlling and managing machine is used for controlling the whole testing system to work; a feeding manipulator is arranged at the front end of the first defect detection device; a discharging manipulator is arranged at the tail end of the thickness and flatness detection device; a moving and overturning manipulator which is used for completing the overturning operation of the friction discs in a moving process is arranged between the first defect detection device and the second defect detection device; moving manipulators are arranged between the second defect detection device and the internal tooth stick distance detection device, and between the internal tooth stick distance detection device and the thickness and flatness detection device. The detection of the friction plates on scratches, patches, foreign matters in grooves, broken blocks, grooving traces, center distances of internal tooth sticks, flatness and thickness can be completed at the same time; unmanned automated operation can be realized, a false detection rate generated due to the weariness of staff is reduced, the production efficiency is improved, and the production cost is reduced.
Owner:SUZHOU JIUDIAN INTELLIGENT TECH CO LTD

Method for testing physical performances of film and film-substrate interface based on nanometer indentation continuous stiffness curve

The invention relates to a a method for testing physical performances of a solid film and a film-substrate interface and belongs to the technical fields of analytic instruments and material performance testing. The method is based on a nanometer indentation continuous stiffness curve and takes the ratio of elastic modulus square of a film-substrate system to the hardness as the ordinate and the indentation depth as the abscissa, a curve is fitted in a iteration screening least square method, and fitted parameters are analyzed and demarcated, thus measuring the physical performances of the film which includes the thickness and the ratio of the elastic modulus square to the hardness and representing parameters related to the thickness of an interface layer and parameters related to the ratio of the elastic modulus square of the interface layer to the hardness and the like. In the method, all tests of the physical performances of the film and the film-substrate interface are based on the nanometer indentation technology, the method can be carried out under the condition of not exposing the substrate surface, the existing equipment does not need to be altered, only the analytic method needs to be change, the application range is wide, and any film material with the film thickness less than the maximum indentation depth of a nanometer indenter can use the method.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

Excessive concrete pouring detector for underwater cast-in-place piles and method for using excessive concrete pouring detector

The invention provides an excessive concrete pouring detector for underwater cast-in-place piles and a method for using the excessive concrete pouring detector. The excessive concrete pouring detector for the underwater cast-in-place piles comprises a measuring rope, a counterweight ring, a coring barrel and a leakage stop valve; the lower end of the measuring rope is fixedly connected with the counterweight ring, the lower end of the counterweight ring is fixedly connected with the coring barrel, a transparent observation window is arranged on a side wall of the coring barrel, and the leakage stop valve is arranged inside the lower end of the coring barrel; and a rotary shaft is arranged in the middle of the leakage stop valve, an upper fan blade and a lower fan blade penetrate through the rotary shaft via connected lantern rings, and two ends of the rotary shaft are fixedly connected with a fixing ring. Compared with the prior art, the excessive concrete pouring detector and the method have the advantages that concrete pouring heights of the underwater cast-in-place piles can be accurately detected, conditions of surfaces of the underwater cast-in-place piles or thicknesses of sediments at bottoms of the piles and the like can be known, the problem that bottoms of pile holes are not thoroughly cleaned or elevations of underwater concrete poured surfaces are inaccurate is effectively solved, the underwater cast-in-place piles can meet design requirements by the aid of the detector, waste of concrete is reduced, and the probability of potential safety hazards is reduced.
Owner:CHINA CONSTR EIGHTH ENG DIV

Method and apparatus for pipe testing

A method of testing pipes for use in making subsea pipelines comprises cutting a ring from one or more pipes of the type used to make the pipeline; forming flat, substantially parallel surfaces on the ends of the ring; providing means for measuring strain and deformation of the ring; mounting the ring in a pressure chamber such that the ends of the ring form seals with opposing walls of the chamber to isolate the inside of the ring from the outside; increasing the pressure outside the ring and measuring the strain and deformation on the ring as the pressure increases; and using the deformation and strain measurements to determine a wall thickness for pipes to be used for the pipeline. An apparatus for testing rings cut from pipes for use in making subsea pipelines, comprises first and second test chamber sections which, when placed together define a test chamber for receiving the ring to be tested; one or more sensors for measuring strain and deformation of the ring; sealing means located in the chamber for forming a seal against the ring when received in the chamber; means for clamping the first and second sections together to form the chamber and engage the sealing means against the ring when received in the chamber to form a pressure resistant seal between the inside and outside of the ring; and a fluid inlet port in one of the chamber sections to allow a pressurised fluid to be admitted to the chamber outside the ring when received in the chamber.
Owner:VERDERG PIPE TECH LTD

Gasket measuring and matching check tool

InactiveCN101915533AFast measurement optionsMatching fastMechanical thickness measurementsEngineeringInverted u
The invention discloses a gasket measuring and matching check tool. The check tool comprises an air cylinder and a check tool base plate, wherein the check tool base plate is fixed at the upper end of the air cylinder and is arranged horizontally; a push rod of the air cylinder vertically passes through the check tool base plate and is fixed with a check tool moveable plate which is arranged horizontally; two vertical upward check tool guide posts are arranged on the two sides of the check tool base plate; check tool top plates which are arranged horizontally are arranged at the upper ends of the check tool guide posts; the check tool top plates are provided with through holes; inverted U-shaped check tool measuring blocks are fixed on the lower side faces; two check tool positioning sleeves which pass through the inverted U-shaped check tool measuring blocks and the through holes on the check tool top plates at the same time are fixed on the upper side of the inverted U-shaped check tool measuring blocks; and height measurement and display mechanisms are fixed in the check tool positioning sleeves. The gasket measuring and matching check tool of the invention has the characteristics of simple structure and easy operation, realizes rapid measurement and matching of gaskets, eliminates a free gap between assemblies in a spring loaded way, and fulfills the aim of selecting a proper gasket effectively and accurately.
Owner:ZHEJIANG JINGANG AUTOMOBILE +1

Pipeline geometric size measuring machine

The invention discloses a pipeline geometric size measuring machine and belongs to the technical field of measuring equipment. The pipeline geometric size measuring machine comprises a pipeline clamping device, a measuring device and a control box, and the pipeline clamping device, the measuring device and the control box are arranged on an operating platform. The pipeline clamping device is used for supporting a pipeline to be measured through a spindle box mechanism and a tail bracket mechanism. The measuring device is provided with two guide rails on the operating platform, the two guide rails are parallel to the axis of the pipeline clamping device, a measuring framework is driven by a measuring framework driving mechanism to move on the guide rails, and a vernier caliper clamp, an LVDT displacement meter clamp, a hatching pen clamp and a thickness gauge clamp are arranged on the measuring framework. When the pipeline geometric size measuring machine works, the position of the pipeline to be measured and the position of the measuring framework are adjusted electrically or manually, the geometric size of each portion of the pipeline to be measured is measured, or, marking-out is carried out. The pipeline geometric size measuring machine can complete the four operations of marking-out calibration of the pipeline, diameter measurement on any section, thickness measurement on any portion and ellipticity measurement on pipeline sections comprehensively. The pipeline geometric size measuring machine is high in working reliability and convenient to operate, and can improve locating accuracy, enhance measuring effects and improve work efficiency.
Owner:DALIAN UNIV OF TECH

Device and method for measuring tooth thickness of medium and small modulus bevel gear

The invention provides a device for measuring tooth thickness of a medium and small modulus bevel gear. The device comprises a guide rail, a block gauge A and a block gauge B, wherein a guide rail sliding block I and a guide rail sliding block II, which can move forwards and backwards, are arranged on the guide rail, and are respectively connected with a dial indictor and a measuring worktable; the block gauge A and the block gauge B are matched with a measured gear in dimension; and the tooth thickness of the gear can be measured by lifting the dial indicator and replacing a measuring ball which is connected with the dial indicator; and the dimension of the measuring ball is in match with the tooth thickness of the measured gear. The device is convenient for measurement and high in measurement precision and is efficient and reliable. According to the device, the actual value of the tooth thickness can be obtained by calculating according to diameter data of the block gauge A, the block gauge B and the measuring ball and under the condition that the measuring ball can be replaced. The invention also provides an efficient and reliable measuring method adopting the measuring device. According to the method, a mounting base surface of the measured gear serves as a measuring reference surface, and the measuring method controls the tooth thickness to ensure the consistency between the tooth thickness on the mounting base surface and the mounting distance of the measured gear.
Owner:ZHEJIANG FENGLI INTELLIGENT TECH CO LTD

Device for measuring wall thickness of pipe

ActiveCN102052885AFast "carpet" continuous wall thickness measurementFast continuous wall thickness measurementMechanical thickness measurementsObservational errorMeasurement device
The invention provides a device for measuring the wall thickness of a pipe. The device comprises a micrometer gauge (1), a measuring rocker arm (2) and a base (7), wherein the measuring rocker arm (2) comprises an upper arm and a lower arm, which are parallel to each other; a fixed measuring head (4) is arranged on the lower arm; the micrometer gauge (1) is fixed on the upper arm; a micrometer gauge measuring head (3) is aligned to the fixed measuring head (4) that is arranged on the lower arm; a heavy hammer is arranged at the rear end of the lower arm of the measuring rocker arm (2); a V-shaped support (6) and a guide column (10) are arranged on the base (7); and a sliding block (11) drives the measuring rocker arm (2) to slide on the guide column (10). During the measurement, a pipe tobe measured (5) is put inside the V-shaped support (6), and the lower arm of the measuring rocker arm (2) is put inside the pipe to be measured (5). The device achieves the tracking measurement of the wall thickness of the pipe, eliminates the measurement error due to the shape error of the pipe, and is easy and convenient to operate. In the combination with a pipe combined motion driving system,the device can rapidly and continuously measure the wall thickness of the pipe.
Owner:CHINA PETROLEUM & CHEM CORP +1
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