The disclosure discloses a device for monitoring the thickness of a wheel valve hole on line, which is mainly composed of a frame, a base plate, a lifting cylinder, a first bracket, a bearing base, a linear bearing, a mounting plate, a guide shaft, a lifting shaft, a first servo motor, a first synchronous pulley, a connecting plate, a synchronous belt, a second synchronous pulley and the like, wherein the base plate, a third bracket and a second mounting rack are fixed on the frame, a visual sensor is mounted on the third bracket, the mounting plate is fixed on the base plate via the first bracket, the bearing base is fixed on the mounting plate, and the lifting shaft is mounted on the bearing base via the linear bearing.

A wheel center bore size qualification detection device includes an upper crossbeam, large guide posts, small guide posts, a center go/no go gauge no go end, a center go/no go gauge go end, small guide sleeves, large guide sleeves, a stand, jaws, small air cylinders, a coupling flange A, a coupling flange B, a lower crossbeam, bases, a large air cylinder, a centering pin A, centering pins B, a mobile sensor bracket, a mobile sensor, a detection connecting rod and bracket, a backing plate, connecting bolts and a fixed plate. The device provided has the characteristics of accurate location, practical structure, high detection accuracy, high efficiency, work safety and reliability and the like.

A wheel center bore size qualification detection device includes an upper crossbeam, large guide posts, small guide posts, a center go/no go gauge no go end, a center go/no go gauge go end, small guide sleeves, large guide sleeves, a stand, jaws, small air cylinders, a coupling flange A, a coupling flange B, a lower crossbeam, bases, a large air cylinder, a centering pin A, centering pins B, a mobile sensor bracket, a mobile sensor, a detection connecting rod and bracket, a backing plate, connecting bolts and a fixed plate. The device provided has the characteristics of accurate location, practical structure, high detection accuracy, high efficiency, work safety and reliability and the like.

An aperture measuring device and aperture measuring method for measuring the size of the aperture of a through-hole in a conductive structure is described to reduce the aperture measurement time and improve the working efficiency. The aperture measuring device includes: an aperture testing component for being inserted into the through-hole, wherein the aperture measuring device includes a plurality of resistor segments with different diameters, the individual resistor segments being successively connected in series in an order of the sizes of their diameters; and a measuring module for measuring the resistance value of a resistor segment unable to be inserted into the through-hole in the aperture testing component to determine the size of the aperture of the through-hole.

Disclosed is a wheel center hole size qualification detection device. The upper ends of large guide posts are connected with an upper cross beam, the lower ends of the large guide posts are connected with a lower cross beam, a frame is fixed on a foundation via bases, the large guide posts are arranged in large guide sleeves on the frame, a large cylinder is fixed on the foundation and connected with the lower cross beam, the large cylinder drives an overall framework formed by the upper cross beam, the lower cross beam and the large guide posts to move up and down, small guide posts are respectively fixed on two sides of the center of the upper cross beam and inside the large guide posts, small cylinders are fixed below the frame, and clamping jaws are connected with the small cylinders.

Disclosed is a wheel center hole size qualification detection device. The upper ends of large guide posts are connected with an upper cross beam, the lower ends of the large guide posts are connected with a lower cross beam, a frame is fixed on a foundation via bases, the large guide posts are arranged in large guide sleeves on the frame, a large cylinder is fixed on the foundation and connected with the lower cross beam, the large cylinder drives an overall framework formed by the upper cross beam, the lower cross beam and the large guide posts to move up and down, small guide posts are respectively fixed on two sides of the center of the upper cross beam and inside the large guide posts, small cylinders are fixed below the frame, and clamping jaws are connected with the small cylinders.

A device and method for measuring the thickness and position tolerance of a wheel bolt hole. The device includes a screw, a handle, a detection pillar and a base plate, where the handle and the base plate are fixed via the screw; the detection pillar is fixed onto the base plate through interference fit; and the detection pillar a bolt hole. The position tolerance and thickness of a bolt hole are measured simultaneously, and the labor intensity is reduced, and the existing bolt hole position tolerance detection tool can be modified for the use as the tool of the device, saving costs. The tool can detect the thickness of a bolt hole and qualitatively determine the range where the difference between the value of bolt hole thickness and the standard value approximately lies, and can be used for the grading of bolt hole thickness values based.

A drift device, including a cylindrical main body having a hollow inner cavity, a front portion including a channel configured to receive a bumper, the cross bar including a central indentation, and a rear portion. The rear portion may include a plurality of openings or selectively removable panels. The cylindrical main body, the front portion, and the rear portion are formed together as a single piece.

A drift device, including a cylindrical main body having a hollow inner cavity, a front portion including a channel configured to receive a bumper, the cross bar including a central indentation, and a rear portion. The rear portion may include a plurality of openings or selectively removable panels. The cylindrical main body, the front portion, and the rear portion are formed together as a single piece.

Disclosed herein are pipe deflection gauges comprising a first guide disc having an outer circumferential edge that functions as the gauge surface, as distinguished from prior art devices, in which discrete rods or fins affixed to a central support define the gauge surface. The disclosed deflection gauges advantageously provide a cross-sectional profile having an altitude that is substantially the same as the maximum outer diameter, and therefore better align with user expectations for measurement of deflection, while being able to comply with regulatory standards by providing an accurate assessment of compliance of a particular pipe.