9results about How to "Accurate positional relationship" patented technology

This invention discloses a car roof rack assembly fixture, comprising: a connecting assembly; a pair of clamping assemblies respectively connected to both ends of the connecting assembly for positioning and clamping the corresponding roof rack; a clamping mechanism connected to the connecting assembly; and an adsorption assembly configured to adsorb onto the glass roof, and applying force to the connecting assembly through the clamping mechanism to press the roof rack clamped by the pair of clamping assemblies firmly against the surface of the glass roof. This car roof rack assembly fixture of the present invention can achieve precise assembly and positioning of the roof rack and glass roof, ensuring the consistency of the final product's appearance and the reliability of the connection, thereby improving production efficiency and product quality. The present invention also discloses a method for assembling a car roof rack and a glass roof.

The invention relates to the technical field of fasteners, and provides a high-strength anti-loosening fastener which comprises a first lock nut, the first lock nut is provided with a through hole, the through hole is provided with a first thread part and a first step part which are adjacent, a first anti-loosening ring is arranged on the first step part and provided with an anti-loosening cavity, and the diameter of the anti-loosening cavity is smaller than the thread inner diameter of the first thread part; the second lock nut is provided with a second step part, an extending part and a second thread part, the second step part abuts against the first anti-loosening ring, the extending part is arranged in the anti-loosening cavity and abuts against the first step part, the extending part is provided with a third thread part, threads of the third thread part are embedded into the first anti-loosening ring, and the thread inner diameter of the second thread part is equal to that of the first thread part. By means of the technical scheme, the problem that in the prior art, a nut is poor in anti-loosening effect is solved.

The present application relates to the field of neuromodulation, and discloses a real-time contact monitoring device and method for transcranial ultrasound therapy, the device comprising a positioning cap, an external magnet array, an ultrasonic coupler, and an ultrasonic control system. The external magnet array forms a periodically changing magnetic field signal in two different directions. The ultrasonic coupler integrates an ultrasonic transducer, a three-axis pressure sensor array, and a three-axis Hall effect sensor array. Among them, the pressure sensor array is used to detect the pressure distribution of the contact surface between the ultrasonic coupler and the scalp, and the Hall effect sensor array is used to detect the magnetic field change of the external magnet array to determine the position offset of the ultrasonic coupler. The ultrasonic control system controls the working state of the ultrasonic transducer according to the pressure distribution information and the position offset information. The present application effectively solves the problem of detecting the deviation of the ultrasonic coupler from the specified position or separation from the scalp caused by external disturbances such as head movement during transcranial ultrasound stimulation.

The present application relates to the technical field of coal mining, and particularly relates to a tool and a method for installing a stand column pressing plate ear plate and a limiting connecting seat, which on one hand provides a tool comprising a first positioning shaft, a horizontal positioning plate, a vertical positioning plate and a second positioning shaft, which has a first circular through hole and a groove in the same relative position relationship as the stand column pressing plate ear plate and the limiting connecting seat are installed on the main reinforcement of the base, and after the tool is positioned with the column nest core positioning hole and the lower bottom surface of the main reinforcement as the reference, the position of the stand column pressing plate ear plate and the limiting connecting seat can be quickly positioned according to the first circular through hole and the groove thereon. On the other hand, a method for installing the stand column pressing plate ear plate and the limiting connecting seat is provided based on the tool, which quickly and accurately positions and installs the stand column pressing plate ear plate and the limiting connecting seat by using the tool, avoids the error of manual measurement and line marking, improves the work efficiency, and is one-time synchronous positioning, which can well ensure the assembly accuracy and ensure the accurate relative position relationship between the two.

The present application relates to the technical field of automation assembly, and discloses a micro part automatic assembly equipment, which comprises an equipment platform and a tooling module, and is provided with a feeding module, a robot transplanting module, an insulating ring assembly module, a visual inspection module, an automatic assembly module, a detection and adjustment module, a dispensing module and a reverse detection module on the equipment platform. The time for completing the assembly of one product through the cooperation of the multiple modules is 287s. In actual production, the actions of different modules are completed in parallel, so the actual production process is higher than 287s. Through analysis, the demand of 100 pieces per day is met, and the assembly efficiency of micro parts is greatly improved. The specially designed tooling module is used for carrying micro parts, so that the micro parts are easy to grasp and the surface of the parts is not damaged during assembly. At the same time, the detection and adjustment module can quickly detect the assembly position of the micro parts, ensure the assembly quality of the parts, and greatly improve the yield.

The filter element pressing device comprises a limiting frame and a driver installed on the inner wall of the right end of the limiting frame, push rods are in transmission connection with the positions, close to the upper side and the lower side, of the outer wall of the left end of the driver, and an extrusion plate is fixedly connected between the outer walls of the left ends of the two push rods. A bottom plate is arranged on the left side of the extrusion plate, pressure sensors are embedded in the positions, close to the upper side and the lower side, of the interior of the outer wall of the left end of the extrusion plate so as to detect the pressure during extrusion, a fixing frame is arranged on the right side of the bottom plate, a filter element a is arranged on the right side of the fixing frame, and a filter element b is arranged on the right side of the filter element a; by installing the limiting plate and the multiple positioning heads, it is ensured that the filter element a, the filter element b and the fixing frame are kept in the correct position relation in the assembling and extruding process, the problems of damage and faults caused by extruding dislocation are avoided, and the assembling efficiency and production quality of the filter element assembly can also be improved.

The utility model relates to an oil pumping system structure for a methanol pump. The water pump comprises a pump body, the plunger sleeve is arranged in the pump body and is provided with a low-pressure fuel cavity; the plunger is movably connected to the interior of a cavity of the plunger sleeve, the oil inlet valve is installed on the plunger sleeve, a plunger cavity capable of being communicated with the low-pressure fuel cavity is formed between the plunger and the oil inlet valve, and the oil inlet valve is provided with a high-pressure oil outlet hole; the oil outlet valve is installed on the plunger sleeve, and the oil outlet valve is provided with a high-pressure fuel cavity capable of being communicated with the high-pressure oil outlet hole; when the plunger moves to a first position, the oil inlet valve can be opened and the oil outlet valve can be closed at the same time, so that the low-pressure fuel cavity communicates with the plunger cavity; and when the plunger moves to a second position, the oil inlet valve can be closed and the oil outlet valve can be opened at the same time, so that the high-pressure fuel cavity is communicated with the high-pressure oil outlet hole. The sealing ring has the advantages of low processing difficulty, chemical resistance, long sealing life and the like.

The invention discloses a processing method and device of a displacement sensor, a storage medium and electronic equipment, an AMT gear shifting execution mechanism is hoisted to calibration equipment, the calibration equipment comprises a high-precision positioning mechanism, a displacement sliding table, a displacement ruler and a driving mechanism, the driving mechanism is used for driving the displacement sliding table to move along a preset track, and the displacement sliding table moves along the preset track; the method comprises the steps that a displacement sliding table is driven by a driving mechanism to move, a target shaft in an AMT gear shifting execution mechanism is linked to move within the measuring range of the target shaft, and the displacement measurement value of a displacement ruler and the voltage value of a displacement sensor of the AMT gear shifting execution mechanism at each displacement point are obtained; the relative position between the magnetic core on the target shaft and the displacement sensor is changed; based on the displacement measurement value and the voltage value corresponding to the displacement measurement value, a calibration curve is established by adopting a polynomial fitting algorithm, and the calibration curve comprises a mapping relation between the displacement measurement value and the voltage value; and the calibration curve is written into the displacement sensor through controller area network (CAN) communication.

The utility model relates to the technical field of pipe machining, and discloses a multi-angle pipe beveling machine which comprises a pedal, the inner wall of the pedal is fixedly connected with a connecting rod, the outer wall of the connecting rod is fixedly connected with a fixing ring, the upper surface of the fixing ring is fixedly connected with a spring, the upper surface of the spring is fixedly connected with a bottom plate, and the bottom plate is fixedly connected with the bottom plate. A rotating block is fixedly connected to the outer wall of the connecting rod, a supporting block is slidably connected to the outer wall of the pushing block, the lower surface of the clamping block is fixedly connected to the upper surface of the supporting block, the inner wall of the pushing block is slidably connected to the outer wall of the guide rod, and a cutting assembly is arranged on the inner wall of the bottom plate and used for cutting a pipe. In the utility model, the pedal is treaded to enable the connecting rod to drive the push block to slide on the outer wall of the guide rod, and the clamping block and the push block can achieve the effect of centering and clamping different types of pipes, so that the dimensional accuracy such as angle, depth, width and the like of a groove meets the effect of meeting the design requirement and the welding process standard.