43 results about "Micrometer" patented technology

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.

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.

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.

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.

The present application relates to structural deformation monitoring technical field, specifically to a kind of monitoring device and its use method for simultaneously monitoring structural joint opening and misalignment amount;The most basic device includes left structure (1), right structure (2), device bottom plate (3), fixed bolt (5), splicing screw rod (6), micrometer measuring rod (8), vertical micrometer panel (10), horizontal micrometer panel (11);Micrometer measuring rod (8) in the vertical micrometer panel (10) is parallel to the structural joint;Micrometer measuring rod (8) in the horizontal micrometer panel (11) is perpendicular to the structural joint;The present application solves the technical problems of the existing joint deformation measurement tool and measurement method, such as single function, low measurement accuracy, low work efficiency and high cost.

The application discloses a spherical radius testing fixture for eccentric rotating valve ball core detection, which comprises a mounting seat, a fixing seat, a sliding shaft, a limiting spring and a micrometer gauge; the mounting seat is in a cylindrical shape, and an installation cavity is arranged on the mounting seat; the fixing seat is integrally formed on the outer side wall of the mounting seat, and two fixing seats are symmetrically arranged; the end portions of the two fixing seats away from the mounting seat are provided with angle blocks, the angle blocks are provided with abutting surfaces, and the abutting surfaces of the two angle blocks are the to-be-measured area; a guide sleeve is embedded in the installation cavity, and the guide sleeve is fixed with the mounting seat through fixing bolts; the sliding shaft and the limiting spring are coaxially arranged in the guide sleeve, and the end of the sliding shaft away from the to-be-measured area extends out of the guide sleeve; a shaft sleeve is arranged at the opening of the guide sleeve away from the to-be-measured area; the micrometer gauge comprises a main body and a measuring needle, the main body is fixed with the shaft sleeve, and the end of the measuring needle abuts against the end face of the sliding shaft away from the to-be-measured area; the application guarantees the accuracy and the repeated precision of detection, and the detection can be directly completed in a valve production and assembly workshop, so that the production and detection efficiency is improved.

The application discloses a kind of high ground stress test methods of deep-buried tunnel surrounding rock.It includes the following steps, step one: after drilling is completed, installation connection and lowering of each instrument equipment in high ground stress test device based on ultra-deep drilling are completed;Step two: pressure equipment is pressurized, high-strength liquid pressure is formed, high-strength liquid pressure reaches hole bottom piston through flexible high-strength pressure pipe, pressure gauge and built-in flexible high-strength pressure pipe;Step three: with the pressure input of pressure equipment, flexible cladding plate on both sides of piston is pressed and moves laterally, and is well cladded with drilling hole wall and gradually applies pressure to drilling hole wall;Step four: the compression deformation of drilling hole wall rock mass after being pressed is measured by micrometer;Step five: P~s characteristic curve is obtained;Step six: ground stress of drilling hole wall rock mass test point is obtained.The application has the advantages of being able to measure and determine ground stress before deep-buried underground chamber or tunnel excavation construction.

The utility model provides a hand -held pressure lever type gauge, include: the top of left side of holding block is provided with arc -shaped groove, detection area sets up in the bottom of left side of holding block, the detection head of pressure lever type micrometer dial central wear measurement rod bottom passes through arc -shaped groove and enters detection area, rapid detection pressure lever group sets up in pressure lever type micrometer dial top, fixed type measuring needle group bottom wear in detection area right side wall, fixed type measuring needle group top and detection head contact, when detecting, right hand passes through finger to wear holding hole and holds holding block, right hand thumb presses down pressure block and makes pressure lever type micrometer dial middle measurement rod be lifted, left hand will standard piece cover and put on fixed measuring needle, right hand thumb leaves pressure block measurement rod and falls back naturally because of gravity, detection head and resist standard piece other side, detect whether pressure lever type micrometer dial upper reading and standard piece thickness numerical value one, after calibrating detection is finished, the bearing required detection area of required detection is in turn and resists fixed measuring needle, and constantly presses and lifts pressure block, and fast measurement is carried out.

This utility model discloses an automated part size inspection device, relating to the field of bearing part inspection technology. It includes a support platform with a measuring stage on its surface. A support column is fixedly connected to the center of the support platform near the measuring stage. An electric push plate is slidably connected to the bottom of the support column near the surface of the measuring stage. The electric push plate can push defective parts into the discharge port. A sliding plate is slidably connected to the center of the support column. A digital micrometer for measuring the outer diameter of bearing parts is installed on the upper part of the sliding plate. A detection camera for inspecting the appearance of bearing parts is fixedly connected to the top of the support column. This utility model simultaneously measures the diameter and appearance of bearing parts using the detection camera and digital micrometer, ensuring the accuracy of the inspection results. The linked electric push plate can push defective parts into the discharge port, improving screening efficiency.

The utility model belongs to the field of guide rail measurement, especially relate to a V type guide rail measuring device. The utility model provides a V type guide rail measuring device, include: V type guide rail body, the outside of V type guide rail body is equipped with measuring mechanism, measuring mechanism includes: measuring frame, the inside bottom end middle part of which is equipped with connecting frame, the inside rotation of connecting frame is connected with the bottom wheel, the top end middle part of measuring frame is connected with the mounting frame through telescopic component, the inside rotation of mounting frame is connected with the top wheel, two micrometers, two micrometers are symmetrically installed on the both sides of measuring frame through adjusting assembly, the probe of micrometer meets the side of V type guide rail body, and the measuring frame is stably connected in guide rail through the cooperation of top wheel and bottom wheel, and the bilateral inclined plane of two sides symmetrical micrometer can realize simultaneous measurement, need not multiple clamping, reduce repeated positioning operation, avoid cumulative error, improve measurement efficiency.

The utility model provides a kind of experimental device for measuring Young's modulus of metal wire by screw micrometer, including measuring frame, light lever device and observation frame;Measuring frame includes measuring support, bearing table, first chuck, second chuck, loading device and screw micrometer;Bearing table is fixedly connected on measuring support, and vertical direction through-hole is provided on bearing table;Screw micrometer is fixed in bearing table end, and the micrometer screw rod area part of bearing table opposite screw micrometer is hollowed out, and the lower end of flat plate is supported by the micrometer screw rod of screw micrometer;Light lever device forefoot is placed on flat plate, and hind leg is placed on the top of second chuck;Observation frame is used to observe the angle change of light lever device.The utility model has the characteristics that compared with conventional experimental instrument, it avoids the error generated by large space distance measurement, and uses autocollimation principle to ensure measurement accuracy, but light path adjustment is simple.

This invention belongs to the field of ship shafting installation technology and discloses a method for illuminating the displacement of ship shafting bearings. The method includes the following steps: Step S1: Establish a first and second reference point for the theoretical shaft centerline; Step S2: Set adjustable optical targets in the inner holes of multiple bearings, confirming that the crosshairs of the adjustable targets coincide with the axis of the inner holes; Step S3: Establish a micrometer collimating telescope behind the first reference point; Step S4: Adjust the micrometer collimating telescope so that its crosshairs coincide with the first and second reference points; Step S5: Based on the displacement, establish parallel axes for positioning multiple bearings using the micrometer collimating telescope; Step S6: Using the parallel axes for positioning multiple bearings as references, align the crosshairs of the targets of multiple bearings with the parallel axes for positioning, completing the positioning of each bearing. This method for illuminating the displacement of ship shafting bearings avoids the scribing deviation caused by manual scribing, ensures the bearing displacement, and results in stable shafting operation with low noise.

The utility model discloses a bearing processing measuring device which comprises a base plate, a workbench and a measuring scale, the left side and the right side of the top of the workbench are both movably connected with clamping plates, the front side of the bottom of each clamping plate is fixedly connected with an indicating plate, the inner side of each clamping plate is provided with a measuring rod, and an adjusting mechanism is arranged in the workbench. And the surface of the measuring rod is movably connected with a limiting mechanism. According to the utility model, the clamping plate, the indicating plate and the measuring rod are arranged, the clamping plate moves to drive the indicating plate to move, a user can conveniently record the outer diameter of the bearing by observing the position of the indicating plate pointing to the measuring scale, and the clamping plate drives the measuring rod to move to facilitate the user to record the inner diameter of the bearing, thereby solving the problem that the existing measuring device such as a micrometer and a vernier caliper is inconvenient to use. The problems that the outer diameter of a bearing is detected, size data are obtained through contact type measurement, whether the inner diameter of the bearing meets the standard or not cannot be accurately judged, and an inner diameter detection tool needs to be used and is troublesome are solved.

This utility model discloses a measuring device for the width between disc-type friction blocks, belonging to the field of friction block measurement technology. The device includes a housing, an adjustment mechanism shaft, a transition seat, a synchronization mechanism shaft, and a dual measuring scale system. Its key feature is that the micrometer drum drives the adjustment mechanism wheel to rotate via an internal adjustment mechanism gear ring, which in turn drives the adjustment mechanism shaft, fixedly connected to the sun gear, to rotate. The synchronization mechanism shaft rotates synchronously via a spline connection, pushing the transition seat to move axially, causing the second adjustment sleeve fixed to the transition seat and the first adjustment sleeve fitted onto the synchronization mechanism shaft to expand bidirectionally, driving the first and second measuring scales to synchronously displace and contact the inner wall of the friction block. The measured value is read dually through the main scale of the measuring scale and the micrometer-level scale of the micrometer drum. This utility model automatically eliminates gap errors, is easy to operate, and solves the technical problem of insufficient measurement accuracy of traditional calipers.

The present application relates to a kind of multi-link press guide post synchronous precision quick regulation method.It includes the following steps: guide post synchronous precision error measurement based on internal diameter micrometer, the establishment of the kinematics model of transmission system of fusion regulation mechanism, optimal adjustment amount solving of regulation device based on inverse solution, quantitative adjustment operation and the test verification and model iteration fine adjustment of regulation effect of regulation device execution;The method realizes the change from "experience debugging" to "quantitative calculation", effectively solves the deficiency of existing regulation mode, improves the regulation efficiency and accuracy of the synchronous precision of the guide post of multi-link press.

The utility model discloses a special measuring device for cylinder perpendicularity. The special measuring device comprises a measuring seat; the supporting table is arranged on the measuring seat; the rope unwinding rotating shaft is rotatably arranged on the supporting table, a steel wire is wound on the rope unwinding rotating shaft, and a wire pendulum is arranged at the tail end of the steel wire; the transverse moving structure is movably arranged on the measuring seat, and the transverse moving structure drives the supporting table to move transversely; and the longitudinal moving structure is arranged on the measuring seat and drives the transverse moving structure to move longitudinally. The rope releasing rotating shaft is rotated to enable the wire pendulum to cross the inner hole of the suction inlet, the overlap ratio of the steel wire and the center of the inner hole of the outer barrel filling culvert is accurately measured through the inside micrometer, and when the steel wire does not coincide with the center of the inner hole of the outer barrel filling culvert, the position of the steel wire is adjusted through the transverse moving structure and the longitudinal moving structure. And the deviation between the steel wire and the center of the inner hole of the outer barrel filling culvert is less than 0.5 mm. And measuring the deviation between the center of the inner hole of the suction inlet of the outer cylinder and the steel wire to obtain the perpendicularity of the axis of the outer cylinder.

The utility model relates to ball screw measurement technical field, especially a kind of ball screw's pitch diameter measuring instrument, the one end of installation box length direction is equipped with micrometer, the measuring head of micrometer is inserted into installation box, and the movable member is slidably arranged in installation box, and the movable member includes the guide rail slidably connected with installation box, the first clamping arm fixedly connected at one end of guide rail, adjustment slot is set up on installation box for the first clamping arm to extend and reciprocatingly slip, the outer circumferential surface of installation box is equipped with the second clamping arm with its detachable connection, the first clamping arm and the second clamping arm are oppositely arranged, and the end of both is equipped with contact measuring ball, the first clamping arm is located at the one end of installation box close to micrometer, the second clamping arm is located at the one end away from micrometer, installation box is also equipped with spring to make the first clamping arm after sliding reset, the utility model has the beneficial effects that: improve measurement accuracy and efficiency.

The present application relates to the field of bearing measurement, in particular to a bearing manufacturing clearance detection device, including a workbench and a control cabinet, through the linkage of two groups of micrometers arranged oppositely and a transversely swingable pressing cylinder, on the basis of synchronous fixation of inner and outer rings, when the pressing cylinder drives the outer ring to swing, the two side connecting frames touch the micrometer measuring ends respectively, and the two groups of micrometers record the radial displacement of the two sides of the inner ring in real time. By comparing the two groups of data, not only the overall radial clearance value can be obtained, but also whether the two side clearances are symmetrical or exist load bias can be accurately judged, effectively overcoming the technical limitation that the existing device cannot compare the two side clearances; at the same time, the automatic centering of the micrometer is realized through the slope guidance of the positioning rod and the tapered positioning groove, the floating cooperation of the connecting cylinder and the connecting rod and the spring buffer can adapt to the bearing height, combined with the rotation of the bearing seat driven by the servo motor to obtain multi-phase clearance data, providing reliable support for comprehensive evaluation of bearing quality.

This invention provides a crankshaft milling insert dimension inspection device, including a worktable, a detachably connected micrometer on top of the worktable, a liftable support plate on the worktable, and a support assembly on top of the support plate for supporting the insert body. The support assembly includes a placement plate placed on the support plate, a boss fixed on the placement plate, and a vertically arranged rod for passing through a hole in the insert body fixed on the boss. Two opposing clamping plates are slidably connected to the support plate, and a stop bar is fixed on the opposing surfaces of the two clamping plates. The placement plate is located between the two clamping plates. A drive assembly is provided on the support plate for driving the two clamping plates to move closer together, and a first electric telescopic rod is provided on the worktable for driving the support plate to rise and fall. This invention eliminates the need for operators to repeatedly pick up or place inserts one by one, allowing for continuous sequential inspection of a group of inserts. The operation is simple and fast, improving the efficiency of insert inspection.

The utility model relates to a forward osmosis membrane doctor blade for uniform coating, which is characterized by the following technical solutions: one end of the blade body is designed as a circular arc end, which makes the one end of the blade body more smooth, and the circular arc end is less likely to stick to slurry than a wider flat blade. Meanwhile, an adjusting mechanism is arranged at the two lifting lugs. When adjusting the distance between the circular arc end and the base film, the circular arc end is moved to contact the surface of the base film by the driver. After contact, the adjusting micrometer is adjusted so that the screw rod of the adjusting micrometer abuts against the top of the lifting lug and the adjusting micrometer is zeroed. Then, the adjusting micrometer is adjusted to the required distance, at which time the adjusting micrometer is separated from the top of the lifting lug. Then, the blade body is lifted by the driver so that the top of the lifting lug contacts the adjusting micrometer. In this way, the thickness, yield and uniformity of the coating can be controlled without damaging the structure of the base film and maintaining stable operation of the production line.

The utility model relates to a kind of brake drum inner brake face runout detection devices, including positioning pin, transmission sleeve, transmission rod, measurement contact, micrometer and table head contact, the transmission rod includes vertically arranged vertical force arm and transverse force arm, the end of the vertical force arm is equipped with the measurement contact, the measurement contact is horizontally arranged, the end of the transverse force arm is equipped with the table head contact, the middle part of the transmission rod is rotatably mounted on the transmission sleeve by the positioning pin, the micrometer is vertically installed on the transmission sleeve, the table head contact is contacted with the measuring rod of the micrometer. The combination design of transmission rod, measurement contact, micrometer and table head contact, the accurate detection of brake drum inner brake runout is realized. The detection device is simple in structure, easy to debug, widely applicable, high in measurement efficiency, improves online measurement efficiency, thereby improves product factory pass rate, saves measurement cost.

The utility model discloses a kind of adjustable force quick moving type micrometer, including ruler frame, measuring rod, adjusting handle and force adjusting mechanism, measuring rod is slidably connected in ruler frame, adjusting handle is rotatably connected in ruler frame one end, force adjusting mechanism is set in ruler frame, including fixed shaft sleeve, fixed ratchet wheel, guide pin fixed seat, guide pin and adjusting assembly.In the utility model, through the mutual abutment transmission structure of "force compression spring-movable ratchet wheel-fixed ratchet wheel", adjusting handle can be linked in the thread of adjusting handle when rotating, and drive measuring rod whole to slide in ruler frame, spring elasticity is converted into the measurement force of measuring rod, the precompression of force compression spring directly determines the frictional force between fixed ratchet wheel and movable ratchet wheel, and then control the contact force of measuring rod and workpiece;User can change the compression of force compression spring by adjusting threaded rod, adapt to the measurement demand of different material workpieces such as soft, hard and the like.

The utility model relates to bearing detection device field discloses a kind of for bearing lock mouth height measurement, including base, the middle part of base is equipped with transmission structure, the top of transmission structure is equipped with supporting plate, the top of supporting plate is equipped with detection structure, and the detection structure includes lever assembly and sliding assembly, and the sliding assembly includes fixed link, the top of supporting plate is fixedly connected in the fixed link, the outer periphery of fixed link is slidably connected with slider one, the outside of slider one is fixedly connected with bracket. In the utility model, by pressing lever rotation, end slider one moves on fixed link, moving slider one drives bracket to move, bracket is attached to bearing lock mouth fixed on support block, then measuring height is carried out to bracket by micrometer, to realize the measurement of bearing lock mouth height, fast and stable, make measurement result more accurate.

This application discloses a portable testing device for a wheel diameter measuring instrument micrometer, comprising a portable positioning mechanism, a two-dimensional adjustment mechanism located on the portable positioning mechanism, a measuring instrument micrometer, and an alignment auxiliary device. The portable positioning mechanism includes a positioning base and a fixing member located on the positioning base. The positioning base has a slot for placing the main scale of the wheel diameter gauge reading end, and the main scale of the wheel diameter gauge reading end is fixed to the positioning base by the fixing member. The two-dimensional adjustment mechanism is disposed on the positioning base, and the measuring instrument micrometer is disposed on the two-dimensional adjustment mechanism. The two-dimensional adjustment mechanism is used to adjust the position of the measuring instrument micrometer, and the alignment auxiliary device is used to ensure that the axis of the measuring instrument micrometer is aligned with the axis of the micrometer being tested. This application solves the problems of disassembly for testing, insufficient accuracy, and poor portability in the prior art, and is suitable for rapid traceability of wheel diameter measuring instruments in railway fields.

This invention proposes a self-aligning roller rotary inner diameter micrometer, comprising a fixed component, a rotating component, and a measuring component. The fixed component includes a chuck seat with concentric inner and outer rings. Multiple clamping sliders are movably disposed between the inner and outer rings. A movement control component for controlling the clamping sliders is located between the inner and outer rings. The rotating component is positioned above the fixed component and includes a bearing seat fixedly connected to the chuck seat, on which a shaft ring is rolled. The measuring component includes a compensation slider fixedly connected to the shaft ring. A measuring rod is slidably disposed through the compensation slider. The length direction of the measuring rod is the same as the radial direction of the inner ring. A probe assembly is located at the end of the measuring rod facing the center of the inner ring, and a dial indicator is located at the end of the measuring rod away from the probe assembly. This invention avoids the errors caused by traditional manual measurement and the fatigue caused to operators by high-frequency measurement.

This utility model discloses a radial stiffness measuring device for the inner tie rod of a steering gear, relating to the field of automotive steering system testing. It aims to solve the problem that existing technologies only perform axial stiffness testing on the inner tie rod and cannot measure its radial stiffness. The technical solution adopted is as follows: An end fixing device is located on the worktable; a neck fixing device is located to the right of the end fixing device; a tension / compression mechanism is located to the right of the neck fixing device; the tension / compression mechanism is connected to the output head of a tension / compression machine; and a measuring mechanism is also located on the worktable, including a micrometer. The measuring end of the micrometer contacts the tension / compression mechanism, and the micrometer is electrically connected to a computer. This utility model uses the end fixing device and the neck fixing device to fix the inner tie rod, and uses upper and lower clamping blocks to fix the ball cup housing, and works with the tension / compression machine to achieve radial tension / compression. The radial stiffness of the inner tie rod is measured by measuring the offset of the upper clamping block using the micrometer.

This utility model relates to a dual-spindle workpiece grinding device, comprising: a machine bed; a feeding mechanism disposed on the machine bed for feeding and conveying the workpiece to be ground; a workpiece rotating fixture, comprising a workpiece positioning device and a flipping mechanism, wherein the workpiece positioning device is used to clamp and fix the workpiece, and the workpiece positioning device is controlled to rotate by the flipping mechanism; a cross slide disposed between the machine bed and the workpiece rotating fixture for driving the workpiece rotating fixture to move in the X and Y axis directions; and a dual-head grinding assembly disposed on the machine bed for performing rough grinding and fine grinding on the workpiece in the workpiece rotating fixture. This utility model can perform rough grinding and fine grinding simultaneously, significantly improving grinding efficiency, reducing the transfer time of the workpiece between different processes, reducing human operation error, and ensuring the stability of grinding quality. It is particularly suitable for grinding the inner measuring surfaces of calipers and micrometers with high machining accuracy requirements.

The tool for rapidly detecting the position degree of the mortise of a large-size disc part of the application comprises a spring, a lever, a micrometer, an end face positioning plate, a positioning block and a main body with a special-shaped structure, the inner end face of the main body is provided with a continuously arranged groove, a pull pin is arranged in the groove, the lever is arranged in a T-shaped structure and contains three positioning references, the three references are tightly attached to the working face, the end face and the bottom face of the mortise of the part during detection to fix the measuring tool, ensure that the measuring head on the other side is at a fixed position during each detection, ensure that good reproducibility can be obtained during detection by different persons, two new gripping handles are additionally arranged to facilitate the force exertion of the detection personnel and improve the measuring efficiency.

This application discloses a vertical testing device for a wheel diameter measuring micrometer, including an auxiliary positioning component, a two-dimensional adjustment mechanism, and a gauge micrometer. The gauge micrometer is used to measure the micrometer being tested. The auxiliary positioning component includes a reference plate, a reference base mounted on the reference plate, a testing positioning plate, and a fixing component. A gauge slot is formed between the reference base and the testing positioning plate, and the gauge slot is used to hold the movable end reading device of the wheel diameter gauge. The fixing component is used to fix the movable end reading device in the gauge slot, ensuring a tight fit between the wheel diameter gauge positioning surface and the testing positioning plate. The high-precision machining of the reference plate in this application ensures the overall stability of the device, solves the problem of poor compatibility of testing devices in the prior art, adapts to the calibration needs of wheel diameter gauges of different specifications, and improves testing accuracy and efficiency.