33results about How to "Speed ​​up the assembly process" patented technology

The invention discloses a Cu-Nb composite wire straightening device which comprises a rack. A paying-off wheel, a first straightening unit, a second straightening unit, a guide wheel and a trailer wagon are installed on the rack in sequence. The paying-off wheel is rotationally installed at the upper end of a paying-off spool shaft. The lower end of the paying-off spool shaft is fixed to the rack. A tension device is fixed to the paying-off spool shaft, wherein the end of the tension device makes contact with the lower end face of the paying-off wheel, and the tension device prevents a Cu-Nb composite wire from being disengaged. The first straightening unit and the second straightening unit are of the same structure. The first straightening unit is horizontally installed, the second straightening unit is vertically installed, the guide wheel is installed at the upper end of a supporting rod, the lower end of the supporting rod is fixed to the rack, a driving device used for driving the trailer wagon to walk is installed on the rack, the rack is provided with a discharging groove and a walking rail used for enabling the trailer wagon to walk, and the discharging groove is located below the walking rail. The Cu-Nb composite wire straightening device can be well applicable to Cu-Nb composite wire straightening, is good in straightening effect, facilitates replacement of straightening components, and is low in using cost.

The invention discloses an acoustic device, comprising: a sounding unit, the sound waves on the front side of the vibrating diaphragm radiate to the outside through the sound outlet; the rear side of the vibrating diaphragm forms a first airtight cavity, and the first airtight cavity A mounting hole is opened on the wall of the cavity, a flexible deformation part is provided on the mounting hole, a second closed cavity is provided outside the first closed cavity, and the flexible deformed part is arranged in the second closed cavity. The sound wave generated during deformation is sealed in the second airtight cavity; a protective cover plate located outside the flexible deformation part is also provided on the installation hole, and the protective cover plate and the flexible deformation part An avoidance space for avoiding the vibration of the flexible deformation part is formed between them; a plurality of air-permeable micro-holes are opened on the protective cover, and the area of ​​each air-permeable micro-hole is less than or equal to 0.2mm 2 . The acoustic device in the present invention can effectively reduce the resonance frequency, and greatly improve the low-frequency sensitivity of the product as a whole.

The invention relates to a velocity sensor, in particular to an assembled side-outlet flexible-connection velocity sensor which comprises a casing and a closure plate. The casing and the closure plate are combined to form an internal cavity, and a circuit board and flexible connection wires are arranged in the cavity. A boss is horizontally arranged at the position, close to the top surface of the casing, of one side surface of the casing, and is provided with a metal joint horizontally. A cable connected with the circuit board penetrates the metal joint to extend out of the cavity. A sealing rubber sheath is arranged between the inner side of the metal joint and the cable. A probe is mounted at the bottom of the casing and is connected with the circuit board through the flexible connection wires. A sealing pad is sandwiched between the casing and the closure plate. A manufacturing method of the velocity sensor is optimized by means of structural modification, and the technical problems of incapability of reuse and difficulty in repairing when the velocity sensor is in fault are solved.

The invention discloses a Cu-Nb composite wire straightening device which comprises a rack. A paying-off wheel, a first straightening unit, a second straightening unit, a guide wheel and a trailer wagon are installed on the rack in sequence. The paying-off wheel is rotationally installed at the upper end of a paying-off spool shaft. The lower end of the paying-off spool shaft is fixed to the rack. A tension device is fixed to the paying-off spool shaft, wherein the end of the tension device makes contact with the lower end face of the paying-off wheel, and the tension device prevents a Cu-Nb composite wire from being disengaged. The first straightening unit and the second straightening unit are of the same structure. The first straightening unit is horizontally installed, the second straightening unit is vertically installed, the guide wheel is installed at the upper end of a supporting rod, the lower end of the supporting rod is fixed to the rack, a driving device used for driving the trailer wagon to walk is installed on the rack, the rack is provided with a discharging groove and a walking rail used for enabling the trailer wagon to walk, and the discharging groove is located below the walking rail. The Cu-Nb composite wire straightening device can be well applicable to Cu-Nb composite wire straightening, is good in straightening effect, facilitates replacement of straightening components, and is low in using cost.