79results about How to "Play a foolproof role" patented technology

An electric connector component comprises a plug connector and a socket connector matched with the same. The plug connector comprises an insulating body, a plurality of conductive terminals and a cable, wherein the conductive terminals are contained in the insulating body, the cable is electrically connected with the conductive terminals, the insulating body comprises a base and a plurality of rodlike inserts integrated to the base, a fastening block integrated to the base is arranged on the upper surface of the base of the insulating body and comprises a push portion, a support portion and a connecting portion, the support portion connected with the base can serve as a fulcrum, the connecting portion extends forward from the support portion, a transverse extension socket is arranged at the front end of the connecting portion, and two ends of the socket are provided with fins. The socket connector comprises an insulating body, the insulating body defines an upper end face and a lower end face parallel to the same, the fins match with the upper end face, and the lower end face is provided with retainer walls for stopping insertion of the fins.

The invention discloses a tunnel arch foot connecting plate positioning tool and a steel arch construction method. The tunnel arch foot connecting plate positioning tool comprises two or more box bodies, each box body comprises a positioning plate and a cover body, a cavity for containing a connecting plate is formed in the positioning plate, limiting holes corresponding to connecting holes in the connecting plate are formed in the bottom of the positioning plate, a fracture groove is formed in the middle of the cover body, the cover body covers the positioning plates and shields the connecting holes in the connecting plates, and a limiting piece is connected between every two adjacent positioning plates. When the tool is used for construction, firstly, the positioning plates are fixedly installed at the preassembling positions, corresponding to the steel arches, on the two sides, then the connecting plates are fixedly installed on the positioning plates, the limiting pieces are installed between every two adjacent positioning plates and adjusted, the steel arches at the positions, corresponding to arch feet, on the two sides are spliced through the steel arches of the preset size, after the steel arch is fixed, the cover body is installed on the positioning plate, concrete is sprayed, and after the concrete is solidified, the cover body, the positioning plate and the limiting piece are removed. According to the tunnel arch foot connecting plate positioning tool, the connecting hole can be effectively prevented from being blocked.

The invention discloses a high multi-layer board layer detection fool-proof method, which comprises the following steps: sequentially stacking and pressing a plurality of inner-layer core boards, anda detection module being arranged on the process edge of the same side of each inner-layer core board and is close to the edge position; and checking the stacking sequence of the inner-layer core plates subjected to press-fit forming from the side surface, if the arrangement of the detection modules is distributed in a preset shape, determining that the stacking sequence is correct, and if the arrangement of the detection modules is not distributed in the preset shape, determining that the stacking sequence is wrong. The invention provides a high multilayer board layer detection fool-proof method. Throught designing the detection module on the process edge of each inner-layer core plate to distinguish whether the inner-layer core plates are misplaced or not for identification and detection, a fool-proof effect is achieved, abnormal leakage can be reduced, outflow of bad products is avoided, and the detection device is quite worthy of adoption and popularization for factories for producing high multilayer circuit boards in batches at present.

The invention discloses a rotation type tool changer for a false tooth engraving and milling machine. The rotation type tool changer comprises a Z-axis feeding device, an X-axis feeding device and a rotary tool apron, wherein the Z-axis feeding device comprises a Z-axis motor, a Z-axis screw and a Z-axis support frame, the Z-axis screw is mounted on the Z-axis support frame, and is driven by the Z-axis motor, a mounting board is matched on the Z-axis screw by threads, a spindle motor and a spindle are mounted on the mounting board, one end of the spindle is connected with the spindle motor, a tool clamping base is mounted on the other end of the spindle, the X-axis feeding device comprises an X-axis motor, an X-axis support frame and an X-axis screw, the Z-axis support frame is matched on the X-axis screw by threads, the X-axis screw is mounted in the X-axis support frame, the X-axis motor drives the X-axis screw to rotate, the rotary tool apron is positioned on one side of the X-axis support frame, and the tool clamping base can move to be right above the rotary tool apron. The rotation type tool changer has the beneficial effect of being high in degree of automation, tool changing efficiency and tool changing accuracy.