85results about How to "Accurate detection accuracy" patented technology

A method for testing the parallelism and roughness of the axial end surface of a bearing, in which the bearing to be tested (7) is placed flat on a measuring platform (6), and the side fulcrum (5) is aligned by moving the side fulcrum fork (4). Accurate the radial end face of the bearing under test, contact the sensor probe (8) with the axial end face of the bearing under test (7), make the measuring platform rotate one circle at a low speed through the motor (13), and the sensor probe against the axial end face of the bearing under test It also detects one circle and sends out a detection signal. The detection signal is input into the computer, and the parallelism or roughness of the axial end surface of the bearing under test can be detected through the comparison of the computer's pre-stored programs. For the parallelism or roughness detection of batches of small and medium-sized outer rings or batches of small and medium-sized inner rings and batches of small and medium-sized sleeve parts, the detection efficiency is higher, and the detection accuracy is more accurate and reliable.

The embodiment of the invention provides a probe device, a precision detection method, a precision detection system and a positioning system. The probe device comprises a positioning part and a guidedetection part, wherein the positioning part is provided with a bearing body, and the bearing body bears three or more positioning pieces which are not collinear; the guide detection part is connectedwith the bearing body, a first preset position relationship exists between the guide detection part and the positioning pieces, and the guide detection part is provided with a cylindrical outer contour structure mutually matched with a guide piece of the positioning system. By means of the embodiment, the precision of the guide piece can be precisely detected, therefore, the control precision ofa surgical robot is effectively improved, and the system safety is improved.

In an image forming apparatus, rollers to stretch and suspend a transfer belt to which color images are transferred are equipped with small diameter portions and a marker is formed, the marker facing to the small diameter portions sequentially when the transfer belt runs.

The invention provides a subway rail inspection vehicle which comprises a vehicle frame. A front bogie and a rear bogie are arranged at the front end and the rear end of the lower portion of the vehicle frame respectively. A generator set, an electrical system and a diesel box are arranged in the middle of the lower end face of the vehicle frame. A vehicle body is arranged on the upper end face of the vehicle frame. Rail detection devices are arranged at the two ends of the lower portion of the vehicle frame. A limit detection device is arranged at one end of the vehicle body. Video monitoring systems are arranged at the two ends of the vehicle body. A front cab, a meeting room, a detection room and a rear cab are arranged in the vehicle body in sequence. A detection cabinet and a detection table are arranged in the detection room. The generator set is electrically connected with the rail detection devices, the limit detection device and the video monitoring devices and provides detection electric power for the rail detection devices, the limit detection device and the video monitoring systems. All the detection devices are electrically connected with the detection cabinet, and detection results are displayed through a displayer on the detection table. According to the subway rail inspection vehicle, the rail detection devices and the limit detection device are integrally installed on one vehicle; the requirement for detection of subway lines and national railway line is met; the subway rail inspection vehicle has the advantages of being high in detection efficiency and accurate in detection.

The invention provides a method for detecting the welding defect rate and the binding rate of a target assembly. The method for detecting the welding defect rate comprises the following steps: providing a standard sample with a known defect area; detecting the defect of the standard sample by an ultrasonic flaw detector to determine detection conditions; providing a target assembly; detecting the target assembly under the detection conditions to obtain the defect area of the target assembly; obtaining the welding defect rate of the target assembly through the defect area of the target assembly, wherein the provision of the standard sample comprises provision of a target and provision of a backboard; welding the target to the backboard; punching the welded backboard, wherein the bottom area of the obtained pore is the defect area of the standard sample. The invention also provides the method for detecting the welding binding rate of the target assembly. The standard sample made by adopting the method enables the subsequent detection accuracy of the target assembly to be high, and is simple and convenient to make.

The invention relates to a detection device for size of an automatic through hole. The detection device comprises a working table, a sieving device fixed on the working table, a size detection device, a slewing device and a discharge device, wherein the sieving device, the size detection device, the slewing device and the discharge device are electrically connected with the control system respectively; the discharge device comprises a qualified product discharge device and an unqualified product discharge device; the sieving device, the size detection device, the qualified product discharge device and the unqualified product discharge device are uniformly distributed around the slewing device in sequence. According to the detection device and the detection method for the size of the automatic through hole, automatic control of PC (Personal Computer) system is adopted, and the design is smart and reasonable, so that the labor force of workers is greatly reduced, qualified products and unqualified products are convenient to distinguish, the detection precision is accurate, and the detection efficiency is higher.