72results about How to "Improve fastening efficiency" patented technology

The invention relates to an automatic device for being capable of fastening multiple screws at the same time, in particular to a synchronous fastening device. The synchronous fastening device achievesthe purpose of being simple in structure, convenient to adjust, high in reliability and uniform in stress of a fastened piece. The synchronous fastening device comprises a power source, a base, a fixing shaft fixedly installed at one side of the base, a driving gear which sleeves the fixing shaft and can rotate relative to the fixing shaft, a plurality of driven gears capable of being externallymeshed with the driving gear, a plurality of transmission shafts capable of synchronously rotating relative to the driven gears, and a fastening piece which is connected with one ends of the transmission shafts and can synchronously move along with the transmission shafts. The fastening piece is used for fastening the piece to be fastened. The fastening piece is matched with the piece to be fastened. The power source is used for supplying power to the driving gear. The automatic device further comprises a transition gear. The device adopts the single power source to achieve synchronous screwing of the screws, assembling and adjusting are easy, the cost is low, the requirement for the environment is low, and the application range is wide.

The invention discloses an automobile part maintenance pressing and fixing device and a pressing method thereof. The automobile part maintenance pressing and fixing device comprises a base plate. A lifting mechanism is arranged at the top end of the base plate. A lifting frame is mounted on the lifting mechanism. A working platform is fixedly mounted in the middle of the top end of the lifting frame. The top wall of an inner cavity of the lifting frame is symmetrically provided with electric telescopic devices. Telescopic rods of the electric telescopic devices penetrate through the top wall of the lifting frame to be fixedly connected with fine adjustment screw rods. The outer side of each telescopic rod is sleeved with a pressing plate matched with the working platform. Each fine adjustment screw rod is sleeved with a fine adjustment nut in a threaded connection mode. The outer side of each fine adjustment screw rod is sleeved with a preload spring matched with the corresponding pressing plate. According to the automobile part maintenance pressing and fixing device, a workpiece is placed on the working platform; the telescopic rods of the electric telescopic devices are retractedto descend the pressing plates, and the pressing plates are pressed down to fasten the workpiece; and finally, the fine adjustment screw rods are rotated to squeeze or release the preload springs toconduct local repressing or local releasing of the pressing plates, and accordingly, the position of the workpiece is finely adjusted to ensure the pressing quality.

The invention provides a calibration device, a calibration method and a pretightening force control method for bolt pretightening force measurement. The calibration device includes: an installation part, on which the bolt to be tested is arranged; a nut, which is threadedly connected to one end of the bolt to be tested away from the bolt head; a driving part for driving the nut to rotate relative to the installation part, and the driving part is connected with the nut ; a rotation detection part used to detect the rotation parameters of the nut, the detection end of the rotation detection part is connected with the nut; a strain detection part used to detect the axial strain of the bolt to be detected, the detection end of the strain detection part is in contact with the bolt to be detected. Since the bolt to be detected does not move relative to the mounting part, the measurement accuracy of the axial strain is improved. Therefore, the calibration device in the present invention is used to calibrate the proportional constant K, which can effectively improve the calibration accuracy of the proportional constant K, thereby enabling subsequent installation. The pre-tightening force of the bolt can be effectively measured when the bolt is used, and it has the characteristics of high measurement accuracy.

The invention relates to the technical field of railway traffic equipment, in particular to a high-efficiency locomotive bolt fastening device. The high-efficiency locomotive bolt fastening device comprises a frame, wheels, a lifting box, a balancing stand, a telescopic boom and a fastening head, wherein the wheels are arranged at the bottom of the frame, the lifting box is arranged at the upper part of the frame, the balancing stand is connected on the lifting box, the fastening head is connected with the balancing stand by the telescopic boom, and a torsion sleeve, a counter force rod and a tightening gun are arranged on the fastening head. The frame with the wheels is designed, the lifting box which is used as a carrier of a fastening device is loaded, the fastening device can freely move in a working area, can adjust the horizontal height of the fastening head, and also can adjust the position of the fastening head in a horizontal plane conveniently, so as to meet the locating requirements of all stations; and the fastening device can be used flexibly, can be operated conveniently, and can be used for reducing the working intensity and greatly improving the fastening efficiency.

The invention discloses an application method of a tool for repair plate fastening in pipe repair. The used tool comprises a T-shaped rod, a thread disc, a connecting nut, a rotating piece and base arranged in sequence from top to bottom. As all the parts are reasonably designed, the tool can realize the dismounting and mounting process without needing special operation spanner, and the pipe repair plate fastening is quickly realized. In addition, the connecting structures of the T-shaped rod, the connecting nut and the rotating piece are reasonably designed, the several parts are more convenient and labor-saved in disassembly. The tool can fasten pipes with different shapes and different sizes. The tool can greatly improve the repair plate fastening efficiency in pipe repair; and in addition, as enough operation space is reserved around a repair plate when the tool fastens the repair plate, the continuous welding process of the repair plate can be realized, and the welding effect is good. The method can effectively improve the pipe repair efficiency.

The synchronous fastening device of the present invention relates to an automatic device capable of fastening multiple screws at the same time. The purpose is to provide a synchronous fastening device with simple structure, convenient debugging, high reliability and uniform stress on the fastened parts. The synchronous fastening device of the present invention includes a power source, a base, a fixed shaft fixedly installed on one side of the base, a driving gear sleeved on the fixed shaft and capable of rotating relative to the fixed shaft, and several slaves that can be externally meshed with the driving gear. Driven gears, several transmission shafts that can rotate synchronously with the driven gears, and fasteners that are connected to one end of the transmission shafts and can move synchronously with the transmission shafts. The fasteners are used to fasten the fastened parts. The shape of the fastener is adapted to the shape of the fastener, and the power source is used to provide power to the driving gear, and also includes the transition gear. The device uses a single power source to realize synchronous tightening of screws, has simple assembly and debugging, low cost, low environmental requirements and wide application range.

The present disclosure provides an oil pipe fastener and a method thereof, including a metal wire, a gear, a toothed push rod and a fastener body, wherein the gear includes a first gear and a second gear disposed inside the fastener body, The first reel is fixed on the first gear, the second reel is fixed on the second gear, and one end of the wire passes through the first through hole on the fastener body and is fixedly connected to the first reel, The other end passes through the second through hole on the fastener body and is fixedly connected to the second coil to form a crossed circular or elliptical wire loop; the first gear and the second gear are symmetrically arranged on the toothed push rod respectively. On both sides, by pushing the toothed push rod to drive the first coil and the second coil on the first gear and the second gear to rotate, tighten the metal wire; it can realize the tightening work of the oil pipes of all voltage level transformers at present, and avoid When taking oil, the oil pipe slips down, which improves the efficiency and reliability of transformer insulating oil sampling work.