218 results about "Gauge (instrument)" patented technology

The invention relates to the technical field of automatic control of instruments and meters, and discloses a digital pressure gauge error automatic calibration method, device and equipment, a medium and a product, and the method comprises the steps: obtaining a plurality of gauge detection points of a digital pressure gauge; testing the pressure value of each meter checking point to obtain an original pressure value and a standard pressure value; calculating a first measurement error and a corresponding correction coefficient of each meter detection point based on the original pressure value and the standard pressure value of each meter detection point, and performing automatic calibration according to the correction coefficient; and calculating a second measurement error based on the correction coefficient, and comparing with the second measurement error according to a preset precision requirement to judge a pressure detection result. The process of manual detection, calculation and automatic calibration of the digital pressure gauge is omitted, the rationality and accuracy of the detection process are enhanced, and automatic calibration and accurate judgment of the pressure detection result in the factory production link of the digital pressure gauge are realized.

The invention discloses a tunnel field monitoring optimization design method. The method comprises the following steps: step 1, determining a to-be-monitored area in a tunnel construction process; 2, acquiring a rock sample in a to-be-monitored area, and acquiring macroscopic physical and mechanical parameters of the rock; step 3, carrying out parameter calibration on the obtained macrophysical and mechanical parameters of the rock, and determining boundary conditions of the model at the same time; 4, numerical simulation parameters are corrected, and parameters capable of being used for subsequent numerical simulation are obtained; 5, steel arch strain FEM-DEM coupling simulation and primary support contact stress CFD-DEM coupling simulation are carried out respectively, and the arrangement positions of steel arch strain monitoring points and primary support contact stress monitoring points are determined; and 6, arranging a steel arch strain gauge and a soil pressure gauge, and carrying out real-time monitoring. According to the invention, the arrangement position of the monitoring points in the tunnel monitoring area can be scientifically and reasonably determined, the key part priority is realized while the whole area is considered, and the loss of the monitoring instrument and the monitoring cost are reduced.

The invention discloses a method for accurately detecting the wear depth of a part in the factory return fault detection and repair process of an aero-engine, and the method comprises the steps: enabling a measurement instrument and a to-be-detected part to reach the internal temperature of a measurement place before measurement, cleaning the to-be-detected part, carrying out the rough measurement of the wear shape and depth through a sample paste making method, and carrying out the measurement. A to-be-measured part is placed and fixed on the platform according to different measurement objects, the gauge pressing amount and the datum plane or the datum line are determined according to the different measurement objects, and finally the abrasion depth is accurately measured. Visual inspection is adopted, the abrasion depth or the proofing paste projection measurement result is judged through the experience of an inspector to serve as a rough measurement value, a corresponding reachable dial indicator or dial indicator probe is manufactured according to the abrasion shape, a to-be-measured part is fixed to a working platform, and it is ensured that a measurement datum plane or datum line is parallel to the platform; the abrasion depth can be accurately measured by stably sliding the dial indicator or the dial indicator frame, and the abrasion depth is used as the zero part with abrasion, and the component can be continuously used.

The utility model discloses an air gauge for measuring blades, which belongs to the technical field of air gauges and comprises a frame, a conveying belt is arranged on the inner side of the frame, and U-shaped frames are symmetrically mounted at the top of the frame. According to the utility model, when a blade needs to be measured, the blade is limited at the top of the support through the clamping mechanism, the blade is driven to move towards the first U-shaped frame through the conveying belt, when the blade passes through the first U-shaped measuring head, the width of the blade is measured through the U-shaped measuring head and the pneumatic gauge, then the blade continues to move, and when the support moves to the toothed bar, the blade is driven to move towards the first U-shaped frame through the conveying belt. According to the pneumatic measuring instrument for measuring the blade, the toothed bar is meshed with the transmission teeth, the support drives the blade to rotate by 90 degrees, then the blade passes through the second U-shaped measuring head, the thickness of the blade is measured, the size of the blade can be rapidly measured while the blade is conveyed in and out through the pneumatic measuring instrument for measuring the blade, and the measuring efficiency of the blade is effectively improved.

The invention discloses a camber adjusting method based on a rough rolling bending value and finish rolling wedge-shaped data. According to the camber adjusting method, camber deformation of a plate blank is adjusted by controlling the hydraulic rolling reduction of a four-roller rough rolling machine in the rough rolling process; an infrared width gauge is arranged at the position 5-10 m away from an outlet of the roughing mill. A finish rolling outlet multifunctional instrument is arranged at an outlet of the finish rolling machine and can detect wedge-shaped data of the strip steel; according to the method, the plate blank can be adaptively adjusted according to the rough rolling bending value and the finish rolling wedge-shaped data of the previous plate blank, so that the camber deformation of the plate blank is avoided as far as possible.

The utility model discloses a standard metal measuring vessel with an inclination settlement measuring function, which belongs to the technical field of metal measuring vessels and comprises a transverse frame, adjustable telescopic rods are rotatably mounted at two ends of the transverse frame, a level gauge is fixedly mounted on one side of the middle of the transverse frame, an angle sensor is arranged on a mounting block, and the angle sensor is connected with the adjustable telescopic rods. A gravity block and a fixing piece are fixedly installed at the two ends of the telescopic plate correspondingly. By adjusting the angle between the adjustable telescopic rod and the transverse frame and the detection height, an instrument can be leveled according to different detection environments, the detection accuracy is improved, the fixing piece is arranged at one end of the telescopic plate and adheres to a building, when the building inclines and sinks, the fixing piece moves along with the building, and the detection accuracy is improved. And the telescopic plate correspondingly extends or contracts and correspondingly inclines, so that the output shaft of the angle sensor rotates, inclination and settlement parameters are calculated, the structure is simple, the detection cost is low, and the operation is convenient.

The utility model provides an efficient double-diameter synchronous comprehensive measuring instrument, which relates to the technical field of measuring instruments and comprises a supporting seat, a convex cover plate is fixed and communicated to the top of the supporting seat and close to the center, a square groove is formed in one side wall of the convex cover plate and close to the top, inner diameter grooves are symmetrically formed in the inner wall of the square groove, and the inner diameter grooves are communicated with the convex cover plate. The two side walls of the convex cover plate are each fixedly provided with four measuring heads, one end of each measuring head is provided with a first spray head in an embedded mode, an air source device is arranged in the supporting base, the top of the air source device is fixedly communicated with a connecting pipe, and the top of the connecting pipe is fixedly connected with a convex box; according to the utility model, the part is embedded into the inner diameter groove and the measuring head, and then the first nozzle and the second nozzle are used for spraying gas, so that the inner diameter and the outer diameter of the part can be synchronously measured, the use and the operation are simple, the measurement is convenient, the size of the part is out of tolerance, the out-of-tolerance can be displayed on a screen of a pneumatic gauge, and visual fatigue is avoided; and quality control is facilitated.

The utility model discloses a foldable level gauge and relates to the technical field of level gauges. The leveling instrument comprises a base, a lifting mechanism is arranged at the top end of the base, a leveling instrument body is arranged on the outer surface of one side of the lifting mechanism, folding mechanisms are arranged on the outer surfaces of the three sides of the base, a center foot is fixedly arranged in the middle of the bottom end of the base, and each folding mechanism comprises a first supporting leg. The outer surface of the first supporting leg is sleeved with a second lantern ring, a rotating piece is fixedly installed at the top end of the first supporting leg, a supporting foot is fixedly installed at the bottom end of the first supporting leg, a rotating pin is arranged in the pressing groove, and the two ends of the rotating pin are jointly connected with a rotating shaft in a penetrating mode. According to the leveling instrument, the lifting mechanism and the folding mechanism are arranged, so that the effects of conveniently adjusting the supporting height and the measuring precision of the leveling instrument are achieved.

The utility model discloses the technical field of machining measurement device, more specifically discloses a kind of for the size measurement tool of incomplete circle, comprising: tool main body, detachably set on part;Compensation component, set on tool main body, can be synchronous with the arc to be processed Machining;Wherein, the straight line of the center of the arc to be processed of compensation component and arc to be processed can pass through arc to be processed;Measuring component is used to measure the diameter between compensation component and arc to be processed;By using the utility model, arc can be measured in real time during processing, cancel the use of radius gauge and three-dimensional coordinate instrument;Greatly reduce the difficulty of real-time measurement arc actual size in part processing process, improve the arc size measurement stability and accuracy, can effectively improve the product quality and stability of part.

The invention relates to a transmission shaft retainer inner sphere diameter detector, in particular to a retainer inner sphere diameter detector for a fixed end joint and a movable end joint of a car constant velocity universal joint transmission shaft, which comprises a support, a rotating shaft A, a rotating shaft B and a positioner, a measuring rod A is rotatably connected to the rotating shaft A, the measuring rod A is perpendicular to and fixedly connected with a measuring head A, a measuring rod B is rotatably connected to the rotating shaft B, and the measuring rod B is perpendicular to and fixedly connected with a measuring head B; a gauge rod of the dial gauge and the measuring rod B are fastened through a screw, a contact on the dial gauge makes contact with the end face of a screw installed on the measuring rod A, one end of the bolt penetrates through the measuring rod A and is in spiral connection with the measuring rod B, the spring is sleeved on the bolt, the positioner is provided with a spherical groove, a square notch, a groove opening A and a groove opening B, the square notch is opposite to a reamed hole in the working table plate, the measuring head A is opposite to the groove opening A, and the groove opening B is opposite to the groove opening B. And the measuring head B is opposite to the groove opening B. When the detector is used for measuring the inner ball diameter of the retainer, not only is the measurement convenient, but also the detection precision of the inner ball diameter of the retainer can be ensured.

The invention discloses a method for correcting a temperature effect of a static level gauge system, relates to the technical field of correction and calibration of the static level gauge system, and considers shrinkage and expansion in the length direction and the radial direction of a communicating pipe between static level gauges, shrinkage and expansion of communicating liquid and shrinkage and expansion of a bowl body of the static level gauge. The method can reduce the influence of the temperature effect on the hydrostatic level data, and has reference significance for improving the temperature adaptability and precision of the hydrostatic level monitoring method.

The utility model relates to the field of powder metallurgy part measuring devices, and discloses an inner diameter measuring device for an automobile powder metallurgy part. The pneumatic measuring instrument comprises a pneumatic measuring instrument body, a base located on one side of the pneumatic measuring instrument body, an inner diameter measuring column head arranged on the top of the base and a rotating sleeve, the rotating sleeve is rotationally connected with the base, the inner diameter measuring column head is located in the rotating sleeve and concentrically arranged, and the rotating sleeve is provided with a plurality of clamping columns. After a part is placed in the rotating sleeve, the multiple clamping columns clamp the part and enable the part, the inner diameter measuring column head and the rotating sleeve to be kept concentric. According to the utility model, the internal diameter value of a part measured by the pneumatic gauge body is more accurate; the clamping column is more stable in the process of driving the part to rotate after clamping the part; the operation is convenient.

1. The name of the design product: the reference assembly of rail straightness measuring instrument. 2. The use of the design product: the reference assembly of rail straightness measuring instrument for detecting the straightness of rail. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

1. Name of the product in this design: Diamond measuring instrument (capable of measuring a small diameter of 1mm). 2. Application of this design: Probe for online precision measurement of machine tools. 3. The key design feature of this product is its shape. 4. Images or photos that best illustrate the design key points: composite state diagrams.

The invention belongs to the technical field of ships, and discloses a ship water gauge mounting method which comprises the following steps: S1, sequentially placing a plurality of water gauge segments on a plurality of pier bases; s2, pre-confirming the positions of a height mounting line and a rib position line and the plate thickness of a bottom plate outside a mounting rib position; s3, a waterline and a rib detection line are determined and marked, a first sample punching point is determined on the waterline, and a second sample punching point is determined on the rib detection line; s4, scribing the height mounting line and the rib position line in the step S2 by using a total station according to the step S3; and S5, confirming an upper mounting line and a lower mounting line of each water gauge character, and performing spot welding and full welding on the water gauge character. According to the ship water gauge character mounting method, the water gauge character can be mounted when the ship is transferred to an external field in a segmented, tire-free and placed mode, the water gauge character is mounted through the total station, the height mounting line, the rib position line, the water line, the rib detection line, the mounting line and the like, and the mounting precision is improved; therefore, the general assembly stage in the prior art is improved to the segmentation stage for installation of the water gauge character.

The utility model discloses an automatic calibrating device for a contact network geometric parameter measuring instrument, which comprises a first operating platform and a second operating platform, a laser range finder, a contact network geometric parameter measuring instrument and a prism are arranged on the first operating platform, and a second support is horizontally arranged on the second operating platform in a sliding manner. A first straight line fine adjustment assembly and a line pattern plate are arranged on the second support, a left lifting fine adjustment assembly and a right lifting fine adjustment assembly are arranged between the first straight line fine adjustment assembly and the line pattern plate, the left lifting fine adjustment assembly and the right lifting fine adjustment assembly are both used for adjusting the height of the line pattern plate, and a second level gauge is arranged on the line pattern plate. A plurality of scale marks are arranged on the line pattern plate; scale marks on the line pattern plate are divided into two scale measuring plates. Compared with the prior art, the calibrating device provided by the utility model realizes the automatic, continuous and digital calibration of the height value and the pull-out value of the contact line of the geometric parameter measuring instrument of the overhead line system. The whole structure is simple, and the calibrating device is convenient to debug.

The invention discloses a four-axis diameter measuring instrument and a method thereof, belongs to the technical field of diameter measuring instruments, and provides the following scheme that the four-axis diameter measuring instrument comprises an adjustable four-axis diameter measuring mechanism, a preprocessing mechanism is arranged on the adjustable four-axis diameter measuring mechanism, and the adjustable four-axis diameter measuring mechanism comprises a fixed base and two fixed shells; one of the fixed shells is fixedly connected to the fixed base; according to the invention, through the detachable design of the two laser multi-axis diameter measuring instruments, the two laser multi-axis diameter measuring instruments can operate independently and finish diameter measurement of two separated wires synchronously when processing batch single-specification wires and improving the efficiency, and the two laser multi-axis diameter measuring instruments can be combined to form a four-axis measuring system when comprehensive detection of high-precision wires is needed. The four-dimensional synchronous measurement of the wire rod is realized, multiple adjustment is not needed, the problems of low single-mode efficiency and complicated multi-dimensional operation of the traditional equipment are solved, the wire rod can be cleaned in advance through the cleaning assembly before diameter measurement, and the accuracy of measured data is ensured.

The utility model discloses an engineering investigation level gauge with a double stable structure, which comprises a measuring instrument, a circular bottom plate, a turntable, a movable bracket and a lower fixing plate, the bottom of the lower fixing plate is fixedly connected with a fixing pipe, a connecting rod is inserted into the inner side of the fixing pipe, the bottom of the connecting rod is fixedly connected with a ground nail, and the ground nail is fixedly connected with the turntable. A first through hole is formed in the surface of the movable support, a sliding rod is inserted into the inner side of the first through hole, a connecting block is fixedly connected to the bottom of the sliding rod, a threaded hole is formed in the surface of the connecting block, a first sliding groove is formed in the surface of the circular bottom plate, a butterfly bolt handle is inserted into the inner side of the threaded hole, and a butterfly bolt handle is inserted into the inner side of the first sliding groove. The bottom of the measuring instrument is fixedly connected with a sliding block, a second sliding groove is formed in the top of the rotating disc, and the sliding block is inserted into the inner side of the second sliding groove. According to the horizontal measuring instrument for engineering investigation, a dual-stable structure is installed, so that the horizontal measuring instrument is more stable in use, and a device facilitating the disassembly of the gradienter is arranged.

The utility model discloses an expansion joint width gauge for bridge detection, which relates to the field of bridge detection, and comprises a ruler sleeve, a fixed column is fixed on one side of the top of the ruler sleeve, a screw sleeve is fixed inside the fixed column, the inner wall of the screw sleeve is in meshed connection with a screw rod, and the outer surface of the screw rod is in meshed connection with a fixed disc. The outer surface of the fixing disc is provided with a fixing sleeve, the screw rod penetrates through the top of the fixing sleeve, the middle of the top of the ruler sleeve is fixedly provided with a telescopic column, one side of the telescopic column is fixedly provided with a handle, and the handle is located on one side of the fixing sleeve. When the thread sleeve moves, the fixing column is driven to move, when the fixing column moves, the ruler sleeve is driven to move, when the ruler sleeve moves, the measuring ruler moves, when the measuring ruler moves, the measuring ruler can measure the depth of the bridge expansion joint conveniently, and the accuracy of integer values is improved.

The present invention relates to the technical field of bearing groove bottom detection, and proposes an inner ring cross-ball distance and groove bottom spacing measuring instrument, including a base with legs, through holes and grooves; a slide is slidably arranged on the base, and the slide is provided with multiple bearing surfaces with gradual height changes, and the bearing surfaces are used to place the test piece; the first push rod is fixed on the base and the end is used to contact the groove bottom of the test piece; the second push rod is slidably arranged in the groove and the end is used to contact the groove bottom on the other side of the test piece; the dial indicator is arranged on the base and the input telescopic end is located above the through hole; the push rod is slidably arranged in the through hole, and the push rod is used to push the input telescopic end; the connecting rod is slidably arranged on the base, and one end is connected to the second push rod, and the other end is connected to the push rod, and the connecting rod and the slide are located on opposite sides of the base. Through the above technical scheme, the problems of complex structure and high cost of bearing groove diameter measuring instruments in the related technology are solved, and a low-cost and high-precision measuring device is proposed.

The invention discloses a method for measuring straightness circle run-out of a spinning cylinder, which not only adapts to spinning cylinders with different lengths and outer diameters, but also can avoid the problem of deformation of a thin-wall spinning cylinder caused by clamping of a traditional manual detection platform through a roller base and a roller which are adjustable in spacing, and guarantees the stability of a measurement reference. Meanwhile, expensive and complex equipment such as a laser interferometer and a three-coordinate detector does not need to be relied on, the detection cost of the large or overweight spinning cylinder is effectively reduced, and the high-cost burden brought by a special customized instrument is eliminated; by means of the PLC servo system, constant-speed sliding of the dial indicator and constant-speed autorotation of the spinning cylinder are achieved, operation is convenient and fast, controllability is high, comprehensive measurement of generatrix straightness at different angles and run-out of different section circles can be accurately completed, detection accuracy, practicability and economical efficiency are considered, and detection requirements in actual production are better met. The device is especially suitable for a thin-wall spinning cylinder, external force cannot be applied to the spinning cylinder in the measurement process, and the deformation risk caused by measurement operation is avoided.

The present application relates to a kind of high concentricity oil distribution shaft finishing method for ship, the design of special cover size at both ends, ensure the accuracy of center hole after installation;Fine turning process, cooperate with advanced HSF1 type ultrasonic thickness gauge monitoring workpiece wall thickness value ensure the workpiece deep hole and outer diameter 0.05mm concentricity. Formulate "temperature compensation principle and method of precision parts size measurement", temperature compensation is used in precision machining to minimize measurement error. Deep hole drilling and boring machine has been unable to complete the oil distribution shaft inner hole ∅250H8, ∅230H8 roughness Ra3.2 step deep hole processing, reform deep hole boring equipment increases inner hole honing head to solve the problem, using digital electronic percentage table measuring instrument group solves the problem of detection. Use modular special tool combined with tungsten steel shockproof tool bar to complete the processing of reverse R angle inside waist type groove, significantly improve efficiency. Use CAM software to select tool parameters analysis, optimization, calculation and generation program, develop reverse thinking programming, ensure that tool path is clear, reliable, good stability.

The utility model discloses a cold-rolled steel strip thickness gauge, relates to the technical field of cold-rolled steel strips, aims to solve the technical problem that a current cold-rolled steel strip coil is unstable in fixation and easy to shake and damage during thickness measurement, and comprises a fixed frame mounted at the top end of a workbench. A cold-rolled strip steel coil is placed on the supporting plate, the buffering support supports the supporting plate, so that the supporting plate sinks into the inner side of the fixing frame, the cold-rolled strip steel coil also falls into the inner side of the fixing frame, longitudinal movement of the cold-rolled strip steel coil is limited through the fixing frame, and the air cylinder enables the fixing piece to be inserted into a center hole of the cold-rolled strip steel coil. The transverse movement of the cold-rolled strip steel coil is limited, and then the thickness of the cold-rolled strip steel is detected through the auxiliary roller and the thickness measuring instrument. The thickness measuring device has the advantages that the movement of the cold-rolled strip steel coil can be limited in the longitudinal direction and the transverse direction, bottom buffer support is provided for the cold-rolled strip steel coil, the cold-rolled strip steel coil cannot shake during thickness measurement, and the cold-rolled strip steel coil cannot be damaged due to unstable fixation.

This invention discloses a wire core stabilizing frame for a wire and cable diameter gauge, comprising a support column, a mounting base, two sets of spring-loaded movable pulley assemblies, a fixed pulley assembly, U-shaped guide wheels, a height adjustment mechanism, and a horizontal fine-tuning mechanism. A fixed base is provided at the bottom of the support column. The height adjustment mechanism adjusts the vertical height of the mounting base, and the horizontal fine-tuning mechanism fine-tunes the horizontal position of the movable and fixed pulley assemblies to achieve precise alignment with the diameter gauge. U-shaped guide wheels at the inlet and outlet ends of the mounting base limit wire core swaying, while the movable pulley assembly with a spring-loaded mechanism counteracts Z-axis jitter, further enhancing wire core stability in conjunction with a lateral compression spring. The spring-loaded mechanism includes a pressure sensor and a control panel for precise pressure adjustment. This invention achieves dual precise wire core positioning, ensuring coaxiality and angular consistency upon entering the diameter gauge, improving measurement accuracy. It is also highly adaptable, easy to operate, and protects the wire core, making it widely applicable in online diameter measurement processes such as wire and cable drawing and extrusion.

The utility model relates to the technical field of pressure instrument testing, and discloses a pressure instrument testing device which comprises a support, a plurality of outer shells arranged at equal intervals are installed on the upper surface of the support, adjusting devices used for adjusting environment variables are arranged in the outer shells, a detection pipeline is arranged above the support, and the detection pipeline is communicated with the outer shells. The detection pipeline penetrates through the outer shell, and the contact position of the detection pipeline and the outer shell is coated with sealant. According to the pressure instrument testing device, the pressure gauge bodies of the same specification are installed in the outer shells, the environments in the outer shells are different by opening and closing the corresponding electromagnetic valves, different variable comparison tests under the same model are achieved, or the pressure gauge bodies of different specifications are installed in the outer shells, so that the test efficiency is improved. By opening and closing the corresponding electromagnetic valves, the internal environment of each outer shell is the same, parallel contrast test under the same condition is realized, more comprehensive detection is further realized, and the detection efficiency is improved.

This invention provides a bolt tightening management system that allows for simpler and more accurate evaluation of the quality of hydraulic tightening. [Solution] The bolt tightening management system 1 manages the tightening of bolts in multiple fastening parts 90 to which hydraulic tightening is applied by a tensioning device 50 which comprises a housing part 51 for housing bolts 93, a movable part 52 that screws with the bolts 93 and forms an oil chamber 53 between itself and the housing part 51, and a pump 55 that supplies pressurized oil to the oil chamber 53. The bolt tightening management system 1 comprises a pressure gauge 11 for measuring the pressure of the pressurized oil discharged from the pump 55, an elongation measuring instrument (dial gauge 12) for measuring the elongation of the bolts 93, which is the difference in length of the bolts 93 before and after the supply of pressurized oil, and a storage device (server 3) that stores the measured pressure and elongation values ​​so that they can be output in association with the fastening parts 90.

The utility model belongs to the technical field of taper hole measurement, and particularly relates to a portable railway vehicle taper hole measuring instrument. The device mainly comprises two dial gauges which are respectively installed on a T-shaped workpiece, the T-shaped workpiece comprises a first installation rod and a second installation rod, and the dial gauges can be installed on a long-dimension section or a short-dimension section through fastening bolts and are used for measuring standard long and short taper holes. Besides, the first mounting rod comprises a fixed sleeve and a movable rod, and the movable rod can be inserted into the fixed sleeve and locked through a limiting knob so as to adapt to measurement of taper holes with different lengths. In order to meet the measurement requirements of different apertures, an extension rod can be installed on the measuring rod of the dial indicator. According to the utility model, the selected dial indicator has a Bluetooth wireless transmission function, so that manual intervention is reduced, and a worker can more intuitively know the measurement result of the taper hole. The device has the advantages of simple structure, convenient operation, high measurement precision and the like, and is suitable for on-site rapid measurement of railway vehicle taper holes.

1. Name of the product in this design: Universal Magnetic Meter Stand. 2. Purpose of this design: For clamping and adjusting gauges and other measuring instruments. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.