63results about How to "Guaranteed guide accuracy" patented technology

The invention discloses a rolling and sliding compound guide track and a manufacturing method thereof. The rolling and sliding compound guide track comprises a rolling and sliding positioning compound guide track and a rolling guide track, wherein the rolling and sliding positioning compound guide track comprises a first positioning block, a second positioning block, a first rolling body and a first positioning baffle plate, the first rolling body is sequentially fixedly connected with the second positioning block and the first positioning block, and the outward surface of the first positioning block is of a circular arc surface; and the rolling guide track comprises a third positioning block, an adjusting wedge block, a second rolling body and a second positioning baffle plate, wherein the second rolling body is sequentially fixedly connected with the adjusting wedge block and the third positioning block, and the outward surface of the third positioning block is of the circular arc surface. The rolling and sliding compound guide track provided by the invention can ensure the guide precision of motion of a ram and the bearing capacity of the guide track, simultaneously reduce the friction force between the ram and a transmission mechanism, and upgrade the sensitivity, the rigidity and the vibration resistance of the motion of the ram by combining the advantages of a rolling guide track and a sliding guide track; and furthermore, not only geometric tolerance requirement of a guide track mounting groove is ensured, but also processing efficiency can be greatly improved.

The invention provides a wired geomagnetic guide while drilling and a measurement method, which uses the earth's gravitational field and geomagnetic field as reference points to establish a three-dimensional reference coordinate system, and uses inertial devices such as quartz flexible gravity accelerometers and fluxgate magnetometers as reference points. The measurement-while-drilling sensor calculates the drilling azimuth, pitch angle and drill face angle according to the measurement data of the measurement-while-drilling sensor. The special software package for the wired geomagnetic guidance instrument is used for engineering design before drilling. trajectory, and calculate and process the steering data, guide the drilling trajectory to track the design trajectory, record and print the drilling trajectory data table. The invention adopts ground power supply, the measurement data of the guiding sensor is transmitted by the cable, the measurement accuracy is high, the guiding is accurate, and the depth and distance of directional crossing are not limited, and it can meet the construction requirements of long-distance and large-depth guiding drilling.

The invention belongs to the microfluidics field and discloses a clamping mechanism for a centrifugal microfluidics CD chip. The mechanism comprises chip support racks 1, a lever 2, a push rod 3, a positioning marble 4, a motor shaft clamping groove 5, a guide block 6 and a guide slot 7. The chip is inserted to the bottom along the guide slot 7 and can reach the accurate position by means of the horizontal positioning function of the guide block 6 and cooperation with the motor shaft clamping groove 5, and the chip is completely positioned when the positioning marble 4 in the motor shaft clamping groove 5 bounces; when the chip is required to be taken out, all that is required is to push the push rod 3 and the chip can automatically bounce under the action of the lever 2. The distance between the chip support racks 1 can be conveniently adjusted and thus the mechanism can adapt to chips with different sizes. The clamping mechanism for the centrifugal microfluidics CD chip is designed in the CD driver principle, can conveniently clamp and position the chip and has the advantages of being simple in structure, convenient to operate, reliable and high in adaptability.