199 results about "Gauge block" patented technology

The invention discloses a feeler gauge calibration method and device based on non-contact optics, and the method comprises the steps: arranging a to-be-calibrated feeler gauge between an upper measuring head and a lower measuring head of a confocal laser displacement sensor, and enabling the lasers of the two measuring heads to be coaxial for differential measurement; placing a standard gauge block between the upper measuring head and the lower measuring head, inputting a correction value of the standard gauge block, and reading the distance between the upper measuring head and the lower measuring head; measuring points of the filler gauge pieces are determined, the upper measuring head and the lower measuring head respectively read data of the central origin of each filler gauge piece measuring point, the filler gauge is moved, infinitesimal displacement is carried out in the measuring area range in the x-axis plane direction and the y-axis plane direction of each filler gauge piece measuring point, n coordinates are formed by combining reading values of the upper measuring head and the lower measuring head, and an upper plane S1 and a lower plane S2 are fitted respectively; and the thickness deviation and the curvature of the feeler gauge are respectively calculated. The feeler gauge verification method and device based on non-contact optics are high in precision, convenient and efficient to operate, automatic and capable of achieving batch detection.

The invention discloses a semi-automatic gauge block comparator, and relates to the field of thickness measuring instruments, and the technical scheme of the invention is that the semi-automatic gauge block comparator comprises a material placing assembly, a moving assembly and a detection assembly which are arranged on a base; an end table of the material placing assembly is used for placing a gauge block; the moving assembly comprises an XY motion module, a top moving plate, a placing frame and a positioning piece; the XY motion module is arranged on the base, the tail end of the XY motion module is provided with a top moving plate, the top moving plate is located on the outer side of an end table of the material placing assembly and connected with a positioning piece through a placing frame, the positioning piece is located above the end table of the material placing assembly, and the positioning piece is provided with a positioning window used for placing a gauge block; and a measuring head of the detection assembly is correspondingly arranged above the end table of the material placing assembly. According to the utility model, semi-automatic multi-point measurement of the gauge block can be realized, the measurement precision is high, and for small-batch measurement, the measurement efficiency is higher, the structure is simple, the cost is lower, and the reliability, the stability, the accuracy and the reproducibility are very high.

The invention provides a calibration process and a calibration block of a contourgraph, and relates to the technical field of contour parameter calibration, in the calibration process of the contourgraph, first scanning data is obtained by scanning a gauge block calibration part of the calibration block, second scanning data is obtained by scanning a standard ball calibration part of the calibration block, and the first scanning data and the second scanning data are obtained based on a physical model among a probe, a rotating shaft and a sensor. The measuring height difference between the first calibration plane and the second calibration plane, the straightness of the inclined plane, the measuring diameter of the fitting circle, the actual height difference of the gauge block calibration part and the actual diameter of the standard ball calibration part are calculated, and the position relation among the probe, the rotating shaft and the sensor is calculated at least with the minimum straightness of the inclined plane as the constraint. The calibration data not only have the height of the gauge block and the diameter of the standard ball, but also introduce the straightness of the inclined plane, and the calibration data is increased, so that the calibration precision is improved, and the nonlinear error caused by the difference between a mechanical structure and a theoretical model can be reduced.

The invention provides a line spectrum damping device and method based on dynamic anti-resonance, the line spectrum damping device comprises a main mass block, a positive stiffness spring, a base, an inertial element and a self-adjusting element, the upper end and the lower end of the positive stiffness spring are fixed between the main mass block and the base respectively, and the inertial element comprises a lever and an inertial mass block; the lever is movably clamped and positioned through a flexible hinge mechanism fixed on the main mass block and the base, the inertia mass block is fixed at one end of the lever and is connected with the base through a negative stiffness mechanism, the self-adjusting element is fixed on the base, and two fulcrums are arranged at the top end of the self-adjusting element and are respectively contacted with the lever; the lever ratio of the damping device can be adjusted in real time according to the excitation frequency, automatic adjustment of the vibration isolation frequency is achieved, the vibration isolation effect is enhanced, and meanwhile the weight is reduced.

The utility model discloses an adjustable center distance caliper calibration device, which comprises a rectangular bottom plate and rectangular guard plates fixed on two transverse sides of the rectangular bottom plate, and a mounting groove is formed between the rectangular guard plates. The adjustable center distance caliper calibration device further comprises a plurality of measuring block gauges with different lengths, clamping block gauges which are used for being arranged on the two sides of the measuring block gauges to form a concave measuring opening, and a block gauge clamper which is used for enabling the measuring block gauges and the clamping block gauges to abut against each other. According to the adjustable center distance caliper calibration device, the measurement block gauges with different lengths are matched with the clamping block gauges to form concave measurement ports with different measurement lengths, so that the purpose of providing a plurality of calibration points for center distance caliper calibration is realized; and the adopted block gauge holder can conveniently and quickly fix the measuring block gauge and the clamping block gauge, and is simple to assemble, use and operate.

The invention relates to a gauge block multi-parameter efficient detection device and method based on a length gauge, and the device comprises the length gauge which is used for detecting the size of a gauge block, and also comprises an automatic gauge block measurement module which is used for installing the length gauge, a robot module which is used for moving and installing the gauge block, and an automatic feeding module which is used for storing the gauge block. The use method based on the gauge block multi-parameter efficient detection device comprises the following steps: S1, installing the standard gauge block and the to-be-measured block in place; s2, self-checking and resetting of the multi-axis mechanical arm; s3, the multi-axis mechanical arm adsorbs the corresponding gauge blocks through a first servo vacuum suction cup, and the multi-axis mechanical arm moves the gauge blocks into a standard gauge block groove and a detection gauge block groove in the U-shaped positioning block; s4, detection is carried out through a length gauge, and after detection is completed, the gauge block is reset to the carrying disc; no manual intervention exists in the process of calibrating the gauge block by using the gauge block multi-parameter automatic detection device based on the length gauge, the measurement error caused by manual fork shifting of the gauge block is reduced, and the measurement precision of the gauge block is improved.

The invention relates to a high-precision small-angle generating device and method based on temperature regulation and control. Comprising a base, a hinge piece, a sine arm, a reflector, a gauge block, a temperature measurement module and a temperature control module. The temperature measuring module and the temperature control module are both installed on the outer wall of the gauge block. One end of the sine arm is rotationally connected with one end of the base through a hinge piece; the gauge block is mounted on the base, the other end of the sine arm is in contact with the gauge block, and the reflector is mounted on the sine arm; the height value h of the gauge block changes along with the change of the temperature, thereby pushing the sine arm to rotate around the rotation point of the hinge piece, and enabling the angle of the reflector to change. According to the invention, the temperature of the gauge block is regulated and controlled to generate a small angle, the temperature of the gauge block is in one-to-one correspondence with the generated angle change, and the influence of the environment temperature on the temperature of the gauge block is converted into the generated angle and the measured temperature, so that the harsh control requirement on the environment temperature is weakened by the mode; and the application scene of the small-angle generator is expanded.

The utility model relates to the technical field of gauge block grinding, in particular to a gauge block machining grinding plate device which comprises a base, the middle end of the top of the base is fixedly connected with an n-shaped frame, an electric push rod is fixedly installed at the middle end of the top of the n-shaped frame, and the extending end of the electric push rod is fixedly connected with a movable plate. Fixing blocks are fixedly connected to the left end and the right end of the bottom of the movable plate, driving threaded rods are movably connected to the inner sides of the two fixing blocks through bearings, and driving motors fixedly connected with the right sides of the driving threaded rods are fixedly mounted on the right sides of the fixing blocks. Through cooperation of the structures, the device has the advantage of being good in grinding quality, and the problems that most of grinding plates on existing grinding equipment grind gauge blocks in a reciprocating type linear track or a reciprocating type annular track, the same part of the gauge blocks can be repeatedly ground in the grinding mode, and the grinding efficiency is poor are solved. And grinding traces caused by repeated grinding can influence the surface quality of the gauge block.

The invention belongs to the field of precision measuring tool automation, and discloses an automatic gauge block feeding device based on a manipulator, which comprises an automatic gauge block feeding and discharging mechanism and a manipulator grabbing mechanism, in a system comprising a material bin, a material disc, a three-axis material taking mechanism and a vacuum material suction module, feeding of a measured block and a standard gauge block to a transferring platform and subsequent discharging and recycling are automatically completed, a robot arm grabbing mechanism integrates a visual positioning module and a multi-degree-of-freedom robot arm cantilever, and the tail end of the robot arm grabbing mechanism is provided with a vacuum suction cup, a thin pneumatic claw and the like. The measuring block can be accurately positioned and automatically grabbed from the transfer platform for subsequent measurement. Through cooperation of the two mechanisms, the full-automatic, unmanned and lossless feeding process of the gauge blocks from storage, selection, conveying, visual recognition to accurate grabbing is achieved, the working efficiency and the gauge block processing precision are remarkably improved, the labor cost is reduced, and wide application prospects are achieved.

The invention relates to the technical field of laser scanners, in particular to a tracking type laser scanner precision calibration method, which comprises the following steps: selecting a standard block gauge with a corresponding thickness from a standard block gauge set, and constructing a gap simulation test piece or a step difference simulation test piece through lapping; acquiring a reference value of the simulation test piece by using high-precision metering equipment, driving a to-be-calibrated tracking type laser scanner to scan the simulation test piece at a plurality of measurement positions for multiple times, and recording original measurement data; based on the reference value and the original measurement data, a measurement error and a repeatability error are calculated, and the measurement precision of the tracking type laser scanner is evaluated; and if the measurement precision does not meet the preset standard, establishing a segmented error model through multi-distance data acquisition, calibrating compensation parameters and dynamically correcting a measurement value in real time. The precision of gap and order difference measurement of the tracking type laser scanner can be improved, the cost is low, and the operation is convenient.

The present invention discloses a method for measuring the angular indication error of a laser tester for blade included angle, comprising the steps of: (1) manufacturing a blade included angle gauge block; (2) selecting a blade included angle gauge block; (3) obtaining the measured angular value of the gauge block to be measured; and (4) calculating the angular indication error of the laser tester for blade included angle. By manufacturing a blade included angle gauge block with a reasonable structure, the present invention makes the pattern of the laser of the laser tester for blade included angle reflected on the arc-shaped scale disk clear through the blade included angle gauge block, greatly improving the accuracy of measuring the angular indication error of the laser tester for blade included angle. At the same time, a method for measuring the angular indication error of the laser tester for blade included angle with simple and complete method steps is provided, facilitating the subsequent measurement operation of the angular indication error of the same type of equipment to be inspected.

The invention relates to a measuring tool, comprising: a gauge rod; the number of the clamps is two, each clamp comprises a first clamp and a second clamp, the first clamp and the second clamp are matched to form a first clamping space and a second clamping space, and the meter rod is arranged in the first clamping space in a penetrating mode and detachably connected with a clamp body; the detection piece comprises a positioning pin and a measuring meter, the positioning pin is connected with the second clamping space of one clamp, a body of the measuring meter is connected with the second clamping space of the other clamp, and a probe of the measuring meter is opposite to the positioning pin in position. During measurement, the standard gauge block is used to position the positioning pin and mark the zero point of the dial indicator, and then the positioning pin is locked and fixed. Then the measuring tool is placed at the annular groove to be measured, the probe is stretched out and drawn back to cross the interference structure and abut against the inner wall and the outer wall of the annular groove to be measured of the cylinder body with the positioning pin, the value of the measuring meter is read, the wall thickness value of the cylinder body at the annular groove is obtained, rapid measurement and verification are achieved, and batch quality risks are avoided.

The utility model discloses a ceramic gauge block grinding and calibrating device, which relates to the technical field of ceramic gauge blocks and comprises a bottom plate, an L-shaped plate is fixedly connected to the upper end of the bottom plate, an electromagnetic chuck is fixedly connected to the lower end of the L-shaped plate, and a moving block is electromagnetically attracted in the electromagnetic chuck. A size measuring instrument is fixedly mounted at the lower end of the moving block, a protective ring is fixedly connected to the outer surface of the size measuring instrument, a controller is fixedly connected to the upper end of the L-shaped plate, the controller is in signal connection with the electromagnetic chuck and the size measuring instrument, a placement groove is formed in the upper end of the bottom plate, and a machining table is fixedly connected to the interior of the placement groove; and when the size of the ceramic is changed, the deviation position of the ceramic can be corrected through the controller, so that the ceramic can be machined through the cutter, and the ceramic can be calibrated more quickly and conveniently.

A device for detecting the precision of a flange run-out detection device comprises a standard workpiece, a first gauge block for detecting the precision of an end face run-out sensor and a second gauge block for detecting the precision of a radial run-out sensor, the standard workpiece comprises a flange and a driving shaft, and the axial end face of the flange is a horizontal plane. The inner circle of the flange is a perfect circle, the shape of the first gauge block is a cuboid, the thickness of the first gauge block is at least 2mm, the cross section of the second gauge block is L-shaped, the second gauge block comprises a measuring part and a fixing part, the lower end face of the fixing part is a standard plane, one side of the measuring part is a vertical plane, and the other side of the measuring part is a cambered surface. The radius of the cambered surface is the same as that of the inner circle of the flange, and the distance between the top of the cambered surface of the measuring part and the vertical plane is at least 2mm.

The invention belongs to the technical field of gas chambers, and particularly relates to a dry-type gas chamber piston sealing wear detection device and method, and the device comprises a mounting rack, a measurement box disposed on the mounting rack, and an extraction handle. The extraction handle is detachably connected with the measuring box and the mounting frame; the measuring box comprises a cuboid shell with a top opening, a measuring block is arranged in the shell, one end of the measuring block is connected with one side wall of the shell through a spring, an opening is formed in the side wall opposite to the side wall, and the opening allows a part of the measuring block to penetrate through the opening and extend out of the shell; and a gland is arranged at the top of the measuring box. By applying the online detection device for the sealing wear of the piston of the gas chamber, the wear condition of the sealing rubber strip can be measured under the normal operation condition of the gas chamber, and the original operation process is not changed, so that online detection is realized.

The invention discloses a non-destructive modified vernier caliper and a method for measuring the bottom wall thickness of a narrow cavity, relates to the technical field of mechanical measurement tools, and aims to solve the problem of measurement of the bottom wall thickness of a narrow cavity of a spaceflight large shell section part. The caliper comprises a vernier caliper body, cylindrical ball top contacts are fixed at the lower ends of two caliper feet, a supporting block is slidably arranged on a main caliper, a positioning block is fixed on an auxiliary caliper, and a dial indicator is mounted on the positioning block; a clamping pin lengthening block can be connected between the clamping pin and the contact, all the components are connected through plug-in screws with soft copper pads, key components are made of 45 # steel which is blued after quenching, and the overall precision reaches 0.01 mm. The invention also discloses a measuring method, which comprises the following steps of: after zero calibration of the standard gauge block, extending the long contact into the cavity, arranging the short contact outside, and calculating the wall thickness according to a formula. The device can go deep into a narrow cavity for measurement, has the advantages of high precision, low cost, convenient operation and no damage, and is suitable for high-precision measurement requirements in the fields of spaceflight and the like.

The invention relates to the technical field of industrial three-dimensional part measurement, and discloses a standard gauge block for measuring an industrial three-dimensional part, which comprises a measurement standard block body and a measurement system of mobile phone software, a color block is arranged outside the measurement standard block body, a two-dimensional code is installed outside the measurement standard block body, and the color block is connected with the two-dimensional code. And a magnetic attraction block is fixedly mounted in the measurement standard block body. According to the standard gauge block for measuring the industrial three-dimensional part, through combination of software and hardware, a measurement standard block body with a standard size is firstly created, and through photographing of mobile phone software, image processing and recognition, algorithm addition and spatial three-dimensional calculation of the measurement standard block body, the size of the part in each direction in a picture is calculated; if the shot part is an article trained by the system, automatically marking the length, width, height and key overall dimension of the part by software; if the part is a non-trained part, software automatically marks a line on the picture to mark measurement data, so that a user can conveniently and intuitively check and export the data.

The present invention belongs to the technical field of motor assembly, and particularly relates to a method for improving the assembly quality of high-power density motors, comprising the following steps: (1) Monitoring the perpendicularity of the bearing positioning step with a gauge block; (2) Hand-held positioning method for hot sleeving the bearing; (3) Axial hammering method for the bearing; (4) Installation and alignment method for the outer ring of the cylindrical bearing; (5) Tightening the bearing housing symmetrically and checking the bearing installation quality by the disk rotation method; (6) Monitoring the clearance between the inner and outer covers and the shaft with a feeler gauge; (7) Four-point symmetric knocking method for the end cover; (8) Disk turning auscultation method. By analyzing the influencing factors of phenomena such as internal rubbing sound of the motor, rubbing of the inner and outer covers against the shaft, shaft movement, large bearing vibration, large body vibration, abnormal bearing sound, and high bearing temperature, the above assembly method is designed, which can achieve the effects of improving the motor assembly quality and extending the service life of the motor.

The invention discloses a special support for a gauge block automatic detection device, which comprises a gauge block support, a support base and a base tray, and is characterized in that the gauge block support is used for placing a standard gauge block and a measured block, the support base is used for placing the gauge block support, the base tray is used for placing a plurality of support bases, and each support base is fixed at the placing position of the base tray; the gauge block support is provided with a first rectangular hole, a second rectangular hole, a circular slot, a side surface groove and a limiting groove, the first rectangular hole is used for placing a measured block, the second rectangular hole is used for placing a standard gauge block, the circular slot is used for preventing a measuring head from contacting with the gauge block support, and a fork sheet of a mechanical arm can be inserted into the side surface groove so as to move the gauge block support on the workbench; the limiting groove is used for fixing the position of the gauge block support, the support base is provided with an insertion groove, and a fork piece of the mechanical arm is inserted between the gauge block support and the support base. According to the invention, the problems of clamping, positioning and moving on the ribbed workbench in the process of automatically measuring the gauge block by the mechanical arm can be solved.

The utility model discloses a track gauge block detacher for a railway track, which relates to the field of track traffic, and comprises a sleeper, a track gauge block, a steel rail and a stress application rod, the lower end of the stress application rod is detachably connected with a buckle iron sheet device, the buckle iron sheet device is rotatably connected with an eagle beak bayonet device through a positioning bolt, and the stress application rod is slidably connected with a sliding sleeve device. According to the gauge block dismounting device, gauge blocks of different specifications can be dismounted on the premise that the eagle beak bayonet device is not replaced, the gauge block dismounting device is very convenient to use, in addition, the sliding sleeve device is matched with the pull rod device, and the dismounting efficiency is improved. Stable buffering force is applied to the eagle beak bayonet device to keep a proper posture, the eagle beak bayonet device is prevented from being stuck, the sliding sleeve device is moved up and down, and the opening and closing degree of the eagle beak bayonet device is adjusted through the pull rod device, so that a worker does not need to bend down to adjust with hands, the labor intensity of the worker is reduced, and the track maintenance efficiency is greatly improved.

The invention relates to a high-precision gauge block support device which comprises a measuring instrument combination, a zero-clearance sliding device and an eccentric fine adjustment device. And the zero-clearance sliding device and the eccentric fine adjustment device form an adjustable main body which is arranged on the measuring instrument combination. Gaps can be eliminated under the action of the elastic force of the spring when the device moves up and down; and meanwhile, gaps caused by abrasion generated in the movement process of mechanical matching can be eliminated.

The invention discloses an embedded track structure compatible with fasteners for fixing steel rails and a track changing method, the embedded track structure comprises track bearing grooves cast in a track bed in situ and the steel rails arranged in the track bearing grooves, and when any steel rail is fixed in the corresponding track bearing groove in a discrete locking state, the steel rails are fixed through a plurality of fastener elastic strips arranged on the two sides of the steel rails; each fastener elastic strip is fixed to the bottom of the corresponding rail bearing groove through an anchor bolt. And the rail bottom of each steel rail is provided with a gauge block corresponding to the corresponding fastener elastic strip at the position of the corner angle formed by the upper surface and the side surface. When the rails are replaced, the temporary steel rails are fixedly locked through the fastener elastic strips so as to meet the traffic requirement, and when the lines are idle, new steel rails are constructed to be fixed in the corresponding rail bearing grooves in a continuous locking state. According to the invention, the rail changing operation is completed in different skylight time stages, so that the flexibility and convenience of embedded rail maintenance are greatly improved.

The utility model relates to the technical field of aluminum alloy hub manufacturing, and discloses a hub center hole detection plug gauge which comprises a gauge seat, a telescopic gauge block is slidably connected to the gauge seat, the telescopic gauge block is arranged corresponding to a hub center hole and is used for measuring the aperture of the hub center hole, the gauge seat is provided with a sliding hole along the radial direction, and the sliding hole is provided with a through hole. The telescopic gauge block is connected in the sliding hole in a sliding mode through a connecting rod, the gauge seat is provided with a gauge head used for indicating measurement readings, and the gauge head is in transmission connection with the telescopic gauge block. The hub center hole measuring device overcomes the problems that in a traditional hub center hole measuring mode, an inner diameter dial indicator depends on the measuring technique of an operator, specific reading cannot be obtained when a go-no go gauge is used for measuring, and the efficiency is low when a three-coordinate measuring machine is used, the measuring precision is guaranteed, and the measuring efficiency is improved.

The utility model relates to an indication error calibration device for an adjustable three-point inside micrometer, and belongs to the technical field of measurement and detection. Comprising a three-point inside micrometer (1), a gauge block (2), a bottom plate (4) and lightening holes (3), the bottom plate (4) is a square plate, an equilateral triangle groove is formed in the middle of the bottom plate (4), the three-point inside micrometer (1) is arranged in the groove, the section of the three-point inside micrometer (1) is circular, the arc surface of the three-point inside micrometer (1) is tangent to the two side edges of the equilateral triangle groove, and the gauge block (2) is arranged between the lower portion of the three-point inside micrometer (1) and the bottom edge of the equilateral triangle groove. The inner wall of the equilateral triangle groove and the gauge block (2) form a calibration point size; the bottom plate (4) is provided with a plurality of circular lightening holes (3), so that the required standard inner diameter of any specification can be combined by using the existing gauge block, and the gauge block has the effects of flexibility, convenience and simplicity in operation.

This invention discloses a track fastener, including a pre-embedded sleeve embedded in a sleeper, a base, a gauge plate, and a spiral spike. The gauge plate is mounted on the base, and both the base and the gauge plate have through holes for the spiral spike to pass through. The spiral spike is connected to the pre-embedded sleeve to fix the base and the gauge plate. The gauge plate has at least two adjustment slots that can be pressed against the rail base to adjust the track gauge. The distance between the contact point of each adjustment slot and the side of the rail base and the center of the spiral spike is different. The gauge plate is rotated to allow different adjustment slots to engage with the rail base to adjust the track gauge. This track fastener eliminates the spring clips and gauge blocks in traditional fastener systems, adding a gauge plate that can adjust the track gauge, resulting in better overall fastener integrity, fewer parts, easier adjustment, and reduced maintenance costs.

The invention provides an artillery firing pin protrusion measuring method, device and equipment and a medium. The method comprises the steps that an artillery firing pin is in a firing state and extends out of an artillery bolt body mirror surface, and a standard gauge block with a known nominal size is arranged on the vertical face of the firing pin; acquiring an image containing a firing pin and a standard gauge block; respectively and correspondingly segmenting the firing pin and the standard gauge block in the image through an image segmentation technology so as to obtain an image containing the firing pin and an image of the standard gauge block; based on the standard gauge block image and the image containing the firing pin, determining the boundaries of the two sides of the standard gauge block and the boundaries of the two sides of the firing pin in the axial extending direction of the firing pin, and determining the number of corresponding pixels between the two boundary points of the standard gauge block and the firing pin; the size of a unit pixel point is calculated and determined according to the nominal size of the standard gauge block and the number of corresponding pixel points between the two boundary points of the standard gauge block; and calculating and determining the mirror surface size of the firing pin protruding out of the artillery bolt body based on the obtained size of the unit pixel point and the number of corresponding pixel points between the two boundary points of the firing pin.

The utility model provides an intelligent storage and calibration device for standard gauge blocks, which relates to the technical field of storage and calibration devices for standard gauge blocks and comprises a storage cabinet, and an intelligent storage mechanism is arranged on the front side of the storage cabinet and in the storage cabinet. The intelligent storage mechanism comprises a PLC, the back face of the PLC is fixedly connected with the front face of the storage cabinet, the inner side wall of the storage cabinet is fixedly connected with pushing telescopic rods arranged at equal intervals, and each pushing telescopic rod is in signal connection with the PLC through a wire. According to the intelligent storage and calibration device for the standard gauge blocks, the pushing telescopic rods at the corresponding positions are manually controlled, and the multiple containing frames are fixed through the fixing strips, so that the standard gauge blocks on the corresponding containing frames are conveniently pushed by driving the pushing plates until the appropriate standard gauge blocks between the two partition plates on the containing frames are pushed to the needed positions, and the standard gauge blocks are conveniently stored and calibrated. The standard gauge blocks required in the storage cabinet can be conveniently taken and placed, and the use convenience of the standard gauge blocks is improved.

The utility model discloses an injection mold for an insulating gauge block capable of quickly demolding, which belongs to the technical field of injection molds and comprises a workbench, a motor II and four groups of limiting rods I are fixedly mounted at the top of the workbench, and a connecting plate is fixedly mounted between the tops of two groups of limiting rods I positioned on the same side; a two-way lead screw is fixedly mounted at the output end of the second motor, a first moving plate and a second moving plate are in threaded connection with the outer side of the two-way lead screw, an injection mold body for the lower insulation gauge block is fixedly mounted at the top of the first moving plate, and a mounting base is fixedly mounted at the bottom of the second moving plate; the injection mold body for the upper insulating gauge block is fixedly mounted at the bottom of the mounting seat, automatic demolding is generally carried out in a relatively stable and accurate manner, and compared with manual demolding, the demolding force and direction can be better controlled, physical damage to the insulating gauge block is reduced, and the production efficiency is improved. And the risk of flaws, deformation or breakage of the product due to improper demolding is reduced, and the appearance quality and the size precision of the product are guaranteed.

The utility model provides a measuring machine calibration gauge block support. The measuring machine calibration gauge block support comprises a support base, an adjusting mechanism and a gauge block supporting plate. The adjusting mechanism comprises a fixed supporting part and an adjustable supporting part, the fixed supporting part is fixedly arranged on the support base, and the adjustable supporting part is rotationally connected with the fixed supporting part; a supporting and positioning assembly is connected between the adjustable supporting component and the fixed supporting component and located at an opening of an included angle formed by the adjustable supporting component and the fixed supporting component. And the gauge block supporting plate is fixedly arranged on the adjustable supporting component. The angle of the gauge block is changed by rotating the adjustable supporting part, and the height of the gauge block can be changed by adjusting the height of the support base; according to the utility model, the supporting and positioning assembly can reliably support the adjustable supporting part, so that the supporting reliability of the gauge block is improved, and the calibration precision of the measuring machine can be ensured.

The utility model relates to the technical field of steel rail fasteners, in particular to a common fastener for a steel rail joint, which comprises a gauge block, a pressing plate and an iron backing plate, the gauge block is arranged on the outer side of a steel rail, the pressing plate is buckled on the gauge block, the pressing plate is fixed on the iron backing plate through a short T-shaped bolt and a thin nut, and the short T-shaped bolt is fixed on the iron backing plate. And the highest point position of the short T-shaped bolt is lower than the height of a joint clamping plate bolt on the steel rail joint clamping plate. The utility model has the advantages that: 1) the height of the whole group of fasteners is reduced, and the fastener can be mounted at a steel rail joint clamping plate, is suitable for various fastener spacing working conditions, and is suitable for various joints such as common joints, freezing joints, cementing insulation joints and the like; (2) the height of the whole group of fasteners is reduced to the greatest extent by adopting the pressing plate with the counter bore design, and (3) the height of the whole group of fasteners is reduced to the greatest extent by adopting the combination of the short T-shaped bolts and the thin nuts.