7results about How to "Reduce thermal deformation" patented technology

The application provides a high-hypersonic wind tunnel piece water-cooled hinge torque balance measurement system and belongs to the technical field of wind tunnel test measurement.The application aims to solve the problem that the rudder surface is difficult to be externally cooled due to thin structure and the hinge torque is difficult to be measured in the prior art.The aircraft fuselage is connected with the aircraft wing and the piece water-cooled hinge torque balance in the application.The top and bottom of the piece water-cooled hinge torque balance are respectively provided with a balance upper cover plate and a balance lower cover plate.The upper end surface of the balance lower cover plate is flush with the aircraft fuselage.The balance free end, the balance measurement element and the fuselage mounting base of the piece water-cooled hinge torque balance are sequentially connected.The balance free end is connected with the measured rudder surface through an angle ear.The balance measurement element is pasted with a strain gauge, and the balance measurement element is internally provided with a water-cooled groove circuit.The application solves the problem that the measurement precision is greatly reduced due to high temperature in the high-hypersonic wind tunnel test, and the rudder surface is difficult to be externally cooled due to thin structure and the hinge torque is difficult to be measured.

The cable printing device comprises a printing mechanism, the printing mechanism comprises a cleaning assembly, a mounting plate and a printing wheel, and the printing wheel is mounted on the mounting plate; the cleaning assembly comprises a brush plate and a position adjusting screw rod, the brush plate is installed on one side of the printing wheel, one end of the position adjusting screw rod is connected to the installation plate, the brush plate is in threaded connection with the position adjusting screw rod, bristles are further arranged on the brush plate, and the face, provided with the bristles, of the brush plate faces the printing wheel. Through the arrangement of the cleaning assembly, impurities on the side wall of the printing wheel are effectively cleaned, the situation that characters printed on the cable are not clear or incomplete is reduced, and therefore the percent of pass of the cable is effectively improved; and through the arrangement of the cooling mechanism, the thermal deformation of characters printed on the cable is effectively reduced, so that the aesthetic degree and the qualified rate of the cable are improved.

This utility model relates to the field of semiconductor component manufacturing technology, and particularly to an ejection mechanism for a wafer heating plate, comprising a heating plate, a base plate, a vertical plate, a sliding cylinder, a connecting plate, and support columns. The heating plate is positioned above the base plate, and the sliding cylinder is positioned below it. A central circle is located in the middle of the heating plate, where the wafer is placed. The center of the central circle is concentric with the center of a circular hole. The sliding cylinder is connected to the base plate via the vertical plate, and the vertical plate and base plate are connected by a locating pin. Three support columns are positioned above the connecting plate at the top of the sliding cylinder, with the tops of the columns inserted into through holes in the heating plate. This utility model uses ceramic support columns to lift the wafer from below. Ceramic material has excellent high-temperature resistance and minimal thermal deformation, improving the stability of the mechanism. The sliding cylinder is connected to the base plate and located away from the heating plate area, avoiding the impact of the high temperature of the heating plate on the performance of the sliding cylinder. A speed control valve controls the lifting speed of the support columns, improving the smoothness of the lifting process.

This utility model discloses a busbar trunking cutting and shearing device, applied in the field of power distribution equipment processing technology. It includes a trunking plate B, with side plates B slidably connected to both sides of the inner wall of the trunking plate B. A connecting rod B is bolted to opposite sides of the two side plates B. Sliding sleeves are bolted to the top and bottom of the connecting rod B. This utility model uses concentric clamping to evenly distribute cutting stress, avoiding twisting or local deformation of the busbar trunking due to unilateral force, maintaining the geometric accuracy of the conductor arrangement, effectively offsetting vibrations generated by the contact between the tool and the material during cutting, reducing the risk of chipped edges, and avoiding tilted or stepped cross-sections caused by workpiece offset. Timely separation avoids slippage or tipping of the cut piece due to gravity and mechanical stress, reducing secondary injuries such as pinching and collisions. The separation action reduces continuous friction between the cutting surface and the tool, preventing the expansion of burrs and extending the tool's service life.

The utility model discloses a main shaft mounting structure of an ultra-precision grinding machine, which improves the rigidity and the strength of the whole structure so as to ensure the machining precision of the grinding machine, and comprises a beam assembly, a sliding seat and a ram, the beam assembly comprises a pair of cross beams arranged in the Y-axis direction and a pair of longitudinal beams perpendicular to the cross beams. The end parts of the cross beams and the longitudinal beams are connected with each other and define a rectangular structure; the sliding base is arranged in the rectangular structure, the two sides of the sliding base are in sliding fit with the cross beam, and a Y-axis motor used for driving the sliding base to move in the Y-axis direction is arranged. A movable hole is formed in the central axis of the sliding seat; the ram is in sliding fit in the movable hole, and a mounting hole for mounting a main shaft is formed in the central axis of the ram; a pair of Z-axis motors used for driving the ram to move in the Z-axis direction are arranged on the opposite side walls of the movable hole.

This invention proposes a plate-type water-cooled hinge torque balance measurement system for hypersonic wind tunnels, belonging to the field of wind tunnel testing and measurement technology. The aim is to solve the problem in existing technologies where control surfaces are difficult to externally cool due to their thin structure, making hinge torque measurement challenging. In this invention, the aircraft fuselage, wing, and plate-type water-cooled hinge torque balance are connected. The plate-type water-cooled hinge torque balance has an upper cover plate and a lower cover plate at its top and bottom, respectively, with the upper surface of the lower cover plate flush with the aircraft fuselage. The free end of the plate-type water-cooled hinge torque balance, the balance measuring element, and the fuselage mounting base are connected sequentially. The free end of the balance is connected to the control surface being measured via angle lugs. Strain gauges are attached to the surface of the balance measuring element, and the internal structure of the balance measuring element includes a water-cooling circuit. This invention solves the problems in existing technologies where high temperatures significantly reduce measurement accuracy in hypersonic wind tunnel tests, and the thin structure of wing control surfaces makes external cooling difficult, resulting in challenging hinge torque measurement.

The application provides a water spraying cooling mechanism and a laser drilling device. The water spraying cooling mechanism comprises a water tank arranged below a workpiece carrying platform, the workpiece carrying platform being horizontally movable, and the workpiece carrying platform being provided with a lateral opening; a top of the water tank is provided with a recovery opening, the recovery opening being in communication with the lateral opening; a water spraying assembly comprises a water spraying arm, a water spraying column and a driver, one end of the water spraying arm is connected to the driver, the other end of the water spraying arm extends horizontally to the recovery opening and is located between the water tank and the workpiece carrying platform, the water spraying column is arranged at the end of the water spraying arm away from the driver and extends upward, a water spraying opening of the water spraying column is arranged upward, the water spraying arm is provided with a water channel in communication with the water spraying column, and the driver is used for driving the water spraying arm to descend to be opposite to the opening or driving the water spraying arm to ascend to make the water spraying opening close to a workpiece on the workpiece carrying platform. The water spraying cooling mechanism of the application has simple structure and high stability.