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277 results about "Micrometer" patented technology

A micrometer sometimes known as a micrometer screw gauge, is a device incorporating a calibrated screw widely used for accurate measurement of components in mechanical engineering and machining as well as most mechanical trades, along with other metrological instruments such as dial, vernier, and digital calipers. Micrometers are usually, but not always, in the form of calipers (opposing ends joined by a frame). The spindle is a very accurately machined screw and the object to be measured is placed between the spindle and the anvil. The spindle is moved by turning the ratchet knob or thimble until the object to be measured is lightly touched by both the spindle and the anvil.

Ultrasonic abrasive flow surface texture machining device and method based on auxiliary magnetic field

PendingCN121715921AGrinding carriagesGrinding bedsSurface engineeringAbrasive flow machining
The invention discloses an ultrasonic abrasive flow surface texture machining device and method based on an auxiliary magnetic field, and belongs to the field of precision machining and surface engineering. The ultrasonic abrasive flow surface texture machining device comprises a workbench, an ultrasonic vibration generating device, a magnetic field generating device, an abrasive flow machining system and a three-dimensional motion platform. The composite abrasive particle suspension is composed of a basic solution, carbonyl iron powder magnetic particles and silicon carbide abrasive particles. According to the method, magnetic particles are guided by a magnetic field to form a chain along magnetic lines of force, ultrasonic high-frequency impact is combined, abrasive materials are driven to impact the surface of a workpiece in order, a submicron texture with the consistent direction and the uniform size is formed, the depth ranges from 0.2 micrometer to 2 micrometers, and the width ranges from 1 micrometer to 20 micrometers. Texture parameters are flexibly regulated and controlled through magnetic field and ultrasonic parameters, and the method has the advantages of being high in machining precision, high in controllability, low in cost, environmentally friendly and recyclable, is suitable for precise parts of bearings and cutters, and can remarkably improve the tribological performance and wettability of the parts.
Owner:BEIJING UNIV OF TECH

Boring head and boring tool assembly

A boring head arranged for holding a boring tool for metal cutting includes a main body having a support surface and a scale surface. The boring head further includes a piston including a boring tool interface for fixedly carrying the boring tool. The piston is movably arranged in the main body along the positioning axis (y), and a micrometer screw. The micrometer screw is arranged in the main body and coupled to the piston, such that, when the micrometer screw is rotated, the piston is moved along the positioning axis to one of the protracted positions or the retracted position. The micrometer screw has a head abutting against the support surface. The head includes a radially outer head surface provided with first graduation marks. The scale surface is provided with second graduation marks aligned with the first graduation marks to provide a reading of the axial position of the piston.
Owner:SECO TOOLS AB

Machining method for inner ring of short cylindrical roller bearing with flange-free outer ring

The invention discloses a processing method of an inner ring of a short cylindrical roller bearing with a flange-free outer ring, relates to a processing method of a bearing inner ring, and aims to solve the problem that the stability, the consistency and the bearing surface quality of the conventional processing method of the short cylindrical roller bearing with the flange-free outer ring cannot meet the requirements of a user on the bearing quality. The method comprises the following steps: carrying out rough turning and fine turning on a bearing inner ring in sequence, and then turning a raceway, an inner chamfer and an outer chamfer, turning an oil groove and drilling two rows of oil holes; heat treatment is conducted, then coarse grinding is conducted firstly, then fine grinding is conducted, tempering is supplemented at high temperature, then oil grooves and oil holes are cleaned, an inner raceway is subjected to final grinding, acid pickling is conducted, hydrogen removal is conducted, and the outer diameter of the inner ring and the inner diameter are subjected to final grinding; and respectively carrying out abrasive flow machining on the outer surface and the inner surface of the bearing inner ring, then carrying out flaw detection, finely grinding an inner raceway, and submitting inspection. By the adoption of the machining method, the precision scatter difference of the obtained bearing inner ring is controlled within 0.5 micrometer, the consistency and stability of the machining method are good, and the machining method is applied to the field of bearings.
Owner:AVIC HARBIN BEARING CO LTD

A new type of cup mouth measuring instrument

This invention discloses a novel cup rim measuring instrument, belonging to the field of measuring instrument technology. It aims to solve problems encountered when using conventional calipers to measure the rim of paper cups, such as significant influence from sample molding, substantial human error, insufficient accuracy, and the inability to avoid seam errors. The measuring instrument includes a base, a measuring cup pan, a dial, a steel bar, a calibration block, a turntable, a digital micrometer, an adjusting block, a locking structure, and an elastic reset component. High-precision measurement is achieved by using a flexible steel bar to conform to the cup rim contour, combined with the digital micrometer. A tension spring provides uniform preload, and the locking structure fixes the length of the steel bar. The mating structure between the adjusting block and the measuring head ensures accurate data. This measuring instrument offers precise and stable measurements, is easy to operate, and is suitable for various types of paper cups, especially for paper cup production quality inspection scenarios with high requirements for measurement accuracy and consistency.
Owner:ZHEJIANG NEW DEBAO MACHINERY

Clamp for detecting jumping of motor shaft

The utility model belongs to the technical field of fixtures, and particularly relates to a fixture for detecting jumping of a motor shaft, which comprises a base, a micrometer is mounted on the base, a radial clamping mechanism is arranged at the upper end of the base, a threaded shaft is mounted in the base through a bearing, and a moving block is connected to the middle section of a shaft body of the threaded shaft through threads. The top of the moving block is fixedly connected with a baffle, and the baffle is fixedly connected with an end push block. According to the utility model, the radial clamping mechanism is arranged on the base, the cushion blocks on the two L-shaped plates can support the motor shaft, and the lifting of the pressing block can be controlled through the screw thread movement between the adjusting rod and the adjusting rod, so that the motor shaft is clamped in a combined manner by combining the cushion blocks, and a good fixing effect is achieved during the jumping detection of the motor shaft; and the device is suitable for motor shafts with different diameters, and the applicability is good.
Owner:NINGBO HENGYUAN AXLE IND CO LTD

Balance shaft plane measuring tool

The invention relates to the technical field of machining and measurement, in particular to a balance shaft plane measuring tool which comprises a base, a positioning mechanism and a measuring mechanism. The measuring mechanism comprises a sliding block arranged on the front face of the base in a sliding mode and two symmetrical mounting rods fixedly arranged on the upper surface of the sliding block, dial indicators are rotationally arranged at the top ends of the two mounting rods through adjusting bolts, and probes are arranged at the measuring ends of the dial indicators. Through the arrangement of the positioning mechanism and the measuring mechanism, the balance shaft main body can be abutted and fixed, then the slide block is moved to enable a probe on the dial indicator to reach a specified detection position on the surface of the balance shaft main body, the dial indicator is subjected to zero comparison, finally, the slide block is moved to drive the dial indicator and the probe to move, and the reading change of the dial indicator is observed. Whether the balance shaft main body is qualified or not can be quickly judged by judging whether the reading change of the dial indicator is within a specified range or not, so that the tool has the advantages of low manufacturing cost and high measurement efficiency.
Owner:CHANGZHOU SHUJIA MASCH CO LTD

H-shaped steel horizontal automatic welding equipment with correction mechanism

ActiveCN117399866BCorrect horizontal amplitude errorsCorrection level errorWelding/cutting auxillary devicesAuxillary welding devicesProduction lineMicrometer
The application relates to the field of H-steel welding equipment, in particular to H-steel horizontal automatic welding equipment with a correcting mechanism, which comprises an upper-layer H-plate correcting mechanism, a middle-layer H-plate correcting mechanism and a lower-layer H-plate correcting mechanism, the upper-layer H-plate correcting mechanism is arranged at the top end of the equipment, the middle-layer H-plate correcting mechanism is arranged at the lower end of the upper-layer H-plate correcting mechanism, the lower-layer H-plate correcting mechanism is arranged at the lower end of the middle-layer H-plate correcting mechanism, and the lower end of the lower-layer H-plate correcting mechanism is provided with a bottom plate adjusting mechanism. The electronic micrometer and the correcting mechanism can clamp and convey wing plates with different specifications and thicknesses and adjust the error of the wing plates in the horizontal direction, the electric correcting roller mechanism can correct the vertical amplitude of the web plate, the wing plate and the web plate are adjusted by the machine, the uncertainty of manual adjustment is reduced, and the bottom plate adjusting mechanism can process wing plates with different specifications and widths without replacing the production line.
Owner:ANHUI LIUAN GREAT WALL STEEL STRUCTURE CO LTD

Waterproof coiled material thickness detection equipment

The utility model relates to the technical field of thickness detection equipment, in particular to waterproof roll thickness detection equipment, which comprises a working table, mounting racks arranged on two sides of the top end of the working table and detection assemblies arranged in the mounting racks, the detection assemblies comprise micrometer gauges, slide rods and slide plates, bottom end contact rods of the micrometer gauges penetrate through the mounting racks, and the slide plates penetrate through the mounting racks. The sliding rod is fixed to the bottom end of the mounting frame, the outer side of the sliding rod is sleeved with a sliding plate, the bottom end of the contact rod makes contact with the top end of the sliding plate, the outer side of the contact rod is sleeved with a spring, and the bottom end of the spring makes contact with the top end of the sliding plate. And the roll shaft rolls between the sliding plates on the two sides, when the roll shaft moves up and down, the springs can achieve the buffering effect, the sliding rods on the two sides can slide through the groove body structures on the two sides of the sliding plates, and the problems of shaking and deviation are reduced.
Owner:YUSHEN WATERPROOF MATERIALS GROUP CO LTD

Positioning carrier applied to high-precision micrometer

The utility model discloses a positioning carrier applied to a high-precision micrometer. The positioning carrier comprises a clamping jig, a positioning bracket and a measuring head, the clamping jig can abut against the interior of a product and clamp the product, the positioning support can be clamped on the clamping jig, and the measuring head can be clamped on the positioning support; the measuring head comprises a first contact and a second contact, one end of the first contact can be in contact with a measuring anvil of the micrometer, the other end of the first contact can be in contact with the outer side of a product, one end of the second contact can be in contact with a micrometric screw of the micrometer, and the other end of the second contact can be in contact with the outer side of the product. The first contact can be matched with the second contact to abut against the outer side of the product.
Owner:SUZHOU LINGYU ELECTRONICS TECH CO LTD

A flatness adjusting device for a molding press

PendingCN122165583AMicrometerPhysics
This invention discloses a flatness adjustment device for a molding press and the molding press thereof, belonging to the field of molding presses. The device includes a connecting plate, on which a hot press plate is mounted via connectors. Forcing members are located at the four corners of the top surface of the hot press plate. Four driving members are located on the side of the connecting plate facing the hot press plate, each driving member acting on one of the forcing members. When the transmission assembly rotates the turning part, the rotation of the turning part, through the driving part, forces the corresponding forcing members to move the corresponding corner of the hot press plate by a displacement at the micrometer level, thereby achieving precise adjustment of the corners of the hot press plate. Compared to the existing technology that directly adjusts by striking a conical rod with a hammer, this method is more convenient and ensures a higher degree of precision, allowing operators to adjust the flatness of the hot press plate more quickly.
Owner:ANHUI TENGKUI NEW MATERIALS CO LTD

Gear machining detection method

The invention discloses a gear machining detection method, and belongs to the technical field of gear machining detection. The machining comprises machining of tooth crest chamfers, polishing of gear tooth surfaces and machining of tooth profile chamfers; the detection comprises the following steps of: detecting the sizes of each shaft and each tooth by using a micrometer, and performing three-coordinate detection on the verticality and the planeness of the end surface of the tooth part. After the technical scheme is adopted, the gear machining and detecting efficiency is improved, and the machining precision and quality are guaranteed.
Owner:GUIZHOU QUNJIAN GEAR

Cross-rod distance measuring device

The utility model relates to the technical field of measuring gauges, and provides a cross-rod distance measuring device. The measuring rods are installed on the supporting piece, the two measuring rods are coaxially arranged along a first straight line, the measuring rods can slide relative to the supporting piece so as to be close to or far away from each other, the opposite ends of the two measuring rods are used for abutting against the inner wall of the gear ring, the adjacent ends of the two measuring rods are connected through the micrometer, and the micrometer is used for obtaining the distance between the two measuring rods; the number of the first guide rods is at least two, the first guide rods are installed on the supporting piece, the first sliding blocks and the first guide rods are arranged in a one-to-one correspondence mode, the first sliding blocks can slide or be locked along the first guide rods, and the first sliding blocks are used for being supported on the axial end face of the gear ring so that the first straight line can coincide with one diameter of the gear ring; and the measuring bar can move or be locked along the axial direction of the gear ring. Therefore, the cross-rod distance measuring device can be suitable for different types of gear rings with different axial sizes.
Owner:NANJING HIGH SPEED GEAR MFG

Method and device for establishing and predicting regression model of surface roughness of cold-rolled low-carbon steel

The invention provides a regression model establishing and predicting method for cold-rolled low-carbon steel surface roughness, relates to the technical field of cold rolling, and aims to solve the technical problem that in the prior art, the surface roughness of cold-rolled low-carbon steel strip steel cannot meet individual requirements of customers through advanced design. The method comprises the following steps: selecting low-carbon steel with specific chemical components of 0.01-0.065% of C, less than or equal to 0.03% of Si and a coiling temperature of 630-730 DEG C, measuring the roughness of five points on the surface of the cold hard coil, and calculating an average value of Ra; the concentration of the continuous annealing leveling liquid is controlled to be larger than 2.5%, the roughness of a working roller is controlled to be 2.3-2.8 micrometers, the elongation is selected, the rolling force and the kilometers of the roller are counted, and the roughness of a finished product is measured; the roughness of the raw material, the rolling force of the temper mill, the elongation of the temper mill and the kilometers of the rollers are used as independent variables, the roughness of the finished product is used as a dependent variable, and a mathematical expression is obtained by fitting a regression model through Minitab; and finally, according to customer demands, substituting preset parameters for prediction and optimization. The surface roughness is preset in advance, the unqualified risk is reduced, the test period is shortened, and the method is suitable for industrial mass production.
Owner:BAOTOU IRON & STEEL (GROUP) CO LTD

Special gauge for measuring the inner tooth span

The utility model discloses a special gauge of inner tooth cross bar distance measurement belongs to the processing detection equipment field of inner tooth product. The special gauge includes: setting fixed area, buffer area and test area on the detection platform, setting up the micrometer in the fixed area, setting up the detection mobile unit in the buffer area, and the detection mobile unit one end is contacted with the detection rod of micrometer, and the other end of detection mobile unit sets up the mobile round bar, setting up the fixed round bar in the test area, and the fixed round bar sets up at least one, when detecting, mobile round bar and fixed round bar all are located in the gear interior. At present, the inner tooth cross bar distance size is three -coordinate measurement, and the measurement time is long, and it needs professional measuring personnel to operate three -coordinate equipment, and the operation is complex and requires high, and the equipment value is high. The special gauge of this design, through the ingenious design, can reach the measurement precision of three -coordinate, and the operation is simple, and the efficiency is high, and the volume is small, can be placed in the production and selection field workbench, and the cost is low.
Owner:NEDSCHROEF FASTENERS KUNSHAN CO LTD

A thin-wall bearing bush finishing device and finishing process method

PendingCN122626012AMicrometerSlide plate
The present application relates to a kind of thin-wall bearing bush finishing device and finishing process method, it is related to the technical field of part processing, including bearing seat, rectangular groove, first pressing assembly, support seat assembly, second pressing assembly, wall thickness micrometer, U-shaped avoidance groove, positioning frame, sliding plate, traction rod, side pressing assembly, lower pressing positioning assembly, air suction assembly, driving assembly, third pressing assembly, internal thread cylindrical pin, the present application can solve the prior art mainly relies on artificial experience and multiple pressing plate directly to the bearing bush that exists elastic deformation is forcedly pressed, the above-mentioned technology faces large size thin-wall bearing bush, since the two ends of bearing bush rebound inward when initially placed and left and right position is difficult to naked eye accurate centering, directly pressing is prone to uneven stress of bearing bush and occurs torsion, so that the outer cylindrical surface cannot be completely attached to bearing seat, seriously affect the wall thickness uniformity of subsequent boring, etc.
Owner:NEWLONG MARINE POWER (FUNAN) CO LTD

Load test device and method for fixed launching pad of medium-large carrier rocket

PendingCN122062859AElasticity measurementSpace launchJackscrew
The invention relates to the technical field of spaceflight launching equipment testing, in particular to a load test device and method for a fixed launching pad of a medium-large carrier rocket. The technical problems that in the prior art, a fixed launching pad load test device is insufficient in bearing capacity and single in loading mode, and multi-point loading and ballasting working condition tests cannot be met at the same time are solved. Comprising a test platform, a test tool, loading equipment and test equipment. The test tool comprises a base, a portal, a loading beam, a support and a lug, and is connected with a foundation embedded steel plate through bolts; the loading equipment consists of a plurality of hydraulic jacks and a hydraulic pump station, and is uniformly controlled by a PLC (Programmable Logic Controller) multi-point synchronous jacking control system; and the test equipment comprises a micrometer and a laser tracker and is used for accurately measuring the deformation of the fixed table body. The device is simple in structure, safe and reliable in structure, flexible in loading mode, high in bearing capacity and capable of achieving multi-point-position and multi-working-condition load tests with the maximum 2025 t ballast and 625 t pull load.
Owner:CHINA FIRST HEAVY IND +1

Small-size power shaft coaxiality calibration device and method

The invention belongs to the helicopter assembly technology, and particularly relates to a small-size power transmission shaft coaxiality calibration device and method. The connection mode of the power transmission shaft and the input end of the main speed reducer is simulated, the relation between the transmission axis and the main speed reducer input axis is analyzed, and the installation coaxiality of the power transmission shaft is converted into a measurable value. The process adjustment amount in the structure is reasonably utilized, and the coaxiality of the power transmission shaft is adjusted while the coaxiality detection of the small-size power transmission shaft is adapted. The device can fully simulate the actual included angle condition after the installation of the engine power transmission shaft and the main reducer input shaft axis, achieves the synchronous measurement and adjustment through setting an adjustment link, and simplifies the installation and adjustment process of the power transmission shaft. The actual included angle after the axes of the engine power transmission shaft and the main reducer input shaft are installed is converted into the measured value of the dial indicator, errors caused by manual operation are reduced, and the aircraft assembly quality is improved while the installation and adjustment precision is guaranteed.
Owner:HARBIN

Measuring tool for batch machining of lathe parts and using method of measuring tool

The invention belongs to the technical field of measuring devices, and discloses a lathe part batch machining measuring tool and a using method thereof.The lathe part batch machining measuring tool comprises a rod body and a micrometer, one end of the rod body is provided with a positioning part, and the rod body is provided with a guide groove; the guide groove extends from the other end of the rod body to the positioning part and penetrates through the rod body in the height direction of the rod body; a dial plate and a connecting part are arranged on the two sides of the micrometer respectively, the connecting part penetrates through the guide groove and is connected with a locking piece, the locking piece is used for locking or unlocking the micrometer, a telescopic detection head is arranged on the side wall of the micrometer, and the detection head is arranged towards or back to the positioning part in the length direction of the rod body. Through the arrangement of the rod body and the micrometer, a user can carry out measurement by taking the size of a first product as a reference, so that a zeroing calibration step before each measurement is omitted, the detection process is greatly simplified, the yield of finished products is ensured, and the production efficiency of the products is improved.
Owner:沈阳睿昇精密制造有限公司 +1

Rapid angle dimension detection tool

The utility model relates to the technical field of mechanical manufacturing and measurement, and discloses an angle dimension rapid detection tool, which comprises a workshop detection flat plate, a detection tool base, a detection tool body, a dial indicator proofreading column and a dial indicator, and is characterized in that one side of the detection tool body is provided with an open slot; the testing fixture body is used for judging whether the angle size of a product is qualified or not through relative movement of the testing fixture body. When one side of the open slot can smoothly pass through the product assembly connector, the angle size is qualified; if not, the angle size exceeds a specified range; the utility model provides an angle dimension rapid detection tool, which converts angle measurement into dimension measurement through a detection tool body according to the design dimension and tolerance requirements of a product to be detected, and specifically converts the included angle between the end face of the product and the axis of a component into the height dimension of a connector. Whether the angle is qualified or not is judged by detecting whether the height dimension of the connector is within a preset range or not.
Owner:XIXIA FEILONG AUTO COMPONENTS CO LTD

Feed fine adjustment mechanism and trimming module

ActiveCN224688539UMicrometerControl theory
The utility model discloses a feed fine adjustment mechanism and trim module, this mechanism includes: base, it is equipped with slide rail, sliding block, sliding connection in slide rail, base is connected with mounting block in the retreat direction of sliding block, and sliding block is equipped with inner chamber, fixed block, it is located in the inner chamber and is fixedly connected to the base, micrometer, it is installed to mounting block, and micrometer is equipped with movable thimble, and movable thimble is towards sliding block, elastic member, it is located in the inner chamber, and the both ends of elastic member abut respectively in the inner side wall of fixed block and sliding block, and elastic member has the elastic force direction towards movable thimble, so that sliding block and movable thimble keep abut. Because sliding block and movable thimble keep synchronous movement all the time, therefore sliding block has the same stroke accuracy with movable thimble, just select stroke accuracy in 0.02mm below micrometer can satisfy the requirement of high-precision feed fine adjustment.
Owner:FOSHAN WANXIN WEIYE AUTOMATION EQUIP CO LTD

Gluing machine arm end execution device and parameterized efficient and high-precision automatic gluing method

PendingCN122644251ARough surfaceControl system
The application discloses a kind of end execution device of gluing machine arm and parameterized efficient high-precision automatic gluing method, end execution device includes installation connecting piece, glue outlet structure and gluing structure;Glue outlet structure includes shell, glue inlet, glue cavity, shunt transition area and at least two shunt glue outlet channels, preferably set three flow channels or two to six flow channels, each flow channel is arranged along the equal interval of gluing width direction, ensure that flow resistance is substantially identical, for the uniform output of colloidal micrometer solid phase particle, reduce single outlet nozzle block and the risk of deflection flow.Gluing structure includes short brush type gluing piece or roller type gluing piece;External glue supply control system carries out prediction and closed-loop adjustment to coating thickness by glue layer thickness parameterization model.The application can realize continuous, uniform, repeatable automatic gluing on complex rough surface, and is suitable for 0.05~0.3 mm glue layer high-precision controllable coating.
Owner:YANSHAN UNIV

External thread tip diameter measuring device and measuring method

The application discloses a male thread top diameter measuring device and a measuring method, and belongs to the technical field of measuring devices.The male thread top diameter measuring device comprises a base, a micrometer, a support, a connecting rod, a wedge-shaped block and two pressure sensors, the base is horizontally arranged, the micrometer is vertically arranged at the middle of the upper end of the base, the support is arranged above the base, the support is provided with a vertically arranged connecting rod, the middle of the lower end of the wedge-shaped block is provided with an angular notch which penetrates the wedge-shaped block from front to back, a vertically penetrating first sliding hole is arranged at the top corner of the angular notch on the wedge-shaped block, the first sliding hole is located on the angle bisector of the top corner of the angular notch, the top corner of the angular notch is alpha, the connecting rod penetrates the first sliding hole, and the lower end of the connecting rod is provided with a first limiting block, the measuring part of the micrometer and the connecting rod are located in the same vertical plane in the front-rear direction, and the two pressure sensors are arranged on the side walls on the two sides of the angular notch respectively, and the device has the advantages of simple structure and convenient measurement.
Owner:CHINA NAT PETROLEUM CORP +1

A conveying roller alignment auxiliary device and an alignment method thereof

The present application relates to the technical field of conveying roller, especially to a conveying roller alignment auxiliary device, which comprises a clamp, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a micrometer, the inner ring diameter of the clamp is smaller than the diameter of the conveying roller, one end of the first connecting rod is arranged on the outer shell of the clamp, the other end of the first connecting rod extends outward along the radial direction of the clamp and is vertically arranged on the second connecting rod, the third connecting rod is also vertically arranged on the second connecting rod, the fourth connecting rod is also vertically arranged on the third connecting rod, and the micrometer is arranged on the fourth connecting rod and the measuring head of the micrometer is parallel to the third connecting rod. The conveying roller alignment auxiliary device is helpful to realize the accurate conveying of the conveying roller to the conveyed objects.
Owner:SHANGHAI BAOSTEEL METALLURGICAL CONSTRUCTION CORP +1

Multi-section outer diameter measuring tool for motor shaft

The invention discloses a multi-section external diameter measuring tool for a motor shaft, which is used for efficiently and accurately detecting the multi-section external diameter size of the motor shaft. The measuring tool comprises a main platform, a convex mounting block, a mounting rod, a supporting plate, a V-shaped supporting block and a plurality of slidable measuring assemblies. The measuring assembly comprises a vertical plate, a sliding rail and two clamping parts, one clamping part is connected with a dial indicator, the clamping part moves along the sliding rail by rotating the measuring rod, and contact and measurement of the measuring block and the outer wall of the motor shaft are achieved. Through the multi-measuring-head synchronous measurement design, the detection efficiency is remarkably improved, the equipment investment and occupied time are reduced, manual measurement errors are avoided, and the method is suitable for the rapid quality inspection link in batch production of motor shafts.
Owner:SHANGHAI YAOFUYUAN PRECISION MACHINERY CO LTD

Method for measuring height of blade root groove after creep deformation by using measuring point transfer

The invention discloses a method for measuring the height of a blade root groove after creep deformation by using measuring point transfer. According to the existing detection, a depth vernier caliper or a depth micrometer is adopted to directly measure the distance between the circle center of a tooth groove corresponding to the two sides of a blade root groove and the bottom of the blade root groove, no corresponding reference exists in the mode, and the measured distance is not accurate. The method comprises the following steps that a backup plate abuts against the end face, where a blade root groove is located, of a turbine wheel disc during measurement, and then when a first-stage tooth groove is measured, a square ring shell is moved in the height direction, so that a positioning block of the square ring shell is located at the position of the first-stage tooth groove; the two positioning blocks synchronously and reversely move until the positioning blocks are inserted into the tooth grooves, the scale insertion ruler slides to enable the bottom of the scale insertion ruler to make contact with the bottom of the blade root groove, the bottom of the scale insertion ruler is the zero scale, and the distance between the circle center of the tooth grooves and the bottom of the blade root groove can be read by observing the scale where the upper surface of the datum plate is located. The method is used for measuring the height of the blade root groove of the turbine wheel disc of the gas turbine after creeping.
Owner:JIANGSU HUADIAN YIZHENG THERMOELECTRICITY CO LTD

Jig for detecting outer surface of cylindrical workpiece

The utility model discloses an outer surface detection jig for a cylindrical workpiece in the technical field of cylindrical workpiece surface detection, which comprises a base, micrometer gauges, probes, a detection clamping rod, a support frame, a limit rod and a baffle plate, the left side and the right side of the base are provided with mounting grooves, and the micrometer gauges can be mounted in the mounting grooves in the left side and the right side. When the diameters of the inner holes of the cylindrical workpiece are different, the cylindrical workpiece can be limited through the left and right groups of different limiting bumps, the breast board is additionally arranged to clamp the workpiece in a matched manner, and the limiting bumps and the breast board are used for positioning in an internal and external clamping manner, so that the workpiece can be accurately positioned when the circular degree of the circumferential surface of the workpiece is detected. The position of the vertical axis of the workpiece can be kept unchanged, the workpiece is accurately positioned, and the detection precision of the workpiece is effectively improved.
Owner:FUJIAN DOMITE AUTOMATION TECH CO LTD

A grinding apparatus for grinding rollers in a grinding machine

ActiveCN224445598UMicrometerDrive shaft
This utility model belongs to the technical field of grinding equipment, and in particular relates to a grinding device for grinding rollers on a grinding machine. It includes a lever, a connecting rod, and a support device. The grinding machine's drive shaft is connected to the lever, one end of which is connected to the connecting rod, and the other end of the connecting rod is connected to the roller. Each end of the roller is connected to a support device for supporting the grinding roller during grinding. The support device ensures the stability of the roller during grinding, ensures coaxiality, and avoids and reduces deformation and errors caused by vibration or improper clamping. The roller's circular runout is guaranteed to be within 3 micrometers, significantly improving the grinding accuracy of the roller and ensuring that the geometric shape and dimensional accuracy of the roller surface meet requirements. It saves time and effort; the grinding support method simplifies the clamping and adjustment process, significantly improving work efficiency. The tail cover design provides a stable support foundation, ensuring accuracy and stability during the grinding process. The equipment has good compatibility and is suitable for more types of grinding machines.
Owner:WEIHAI XINGHENG NEW MATERIAL TECH CO LTD

Axial clearance gauge for connecting rod plunger

ActiveCN224470979UMicrometerPlunger
The application relates to an axial gap detector for a connecting rod plunger, which comprises a bottom plate, a first V-shaped block and a second V-shaped block being fixedly arranged on the top surface of the bottom plate and being spaced apart along the length direction of the connecting rod plunger, the first V-shaped block being used for placing a rod body of the connecting rod plunger, a stopper being fixedly arranged on the end of the first V-shaped block away from the second V-shaped block and being used for abutting against the rod body, the second V-shaped block being used for placing a ball head of the connecting rod plunger, the center of the ball head and the center line of the rod body being located on the same straight line, a clamping assembly being fixedly arranged on the top surface of the bottom plate and being used for clamping and fixing the rod body of the connecting rod plunger, and a measuring assembly, the measuring assembly comprising a micrometer seat and a micrometer, the micrometer seat being fixedly arranged on the top surface of the bottom plate along the length direction of the connecting rod plunger, the micrometer being fixedly installed on the micrometer seat, and the pointer of the micrometer pointing to the vertex of the ball head. Through the application, the axial gap distance of the connecting rod plunger can be quickly identified, the operation is simple, different models can be quickly converted, the cost is low, and the reading is accurate.
Owner:WUHAN FANZHOU ZHONGYUE ALLOY MATERIALS CO LTD