41results about How to "Large tightening torque" patented technology

The invention discloses an automatic reset pressing valve element. The automatic reset pressing valve element comprises an upper shell and a lower shell. A pressing rod, a rotary shaft and a spring are mounted in the upper shell, a fixed valve plate and a movable valve plate are mounted in the lower shell, the portion between the movable valve plate and the rotary shaft is in transmission connection with a thumbing disc circumferentially, a guide groove is formed in the upper shell, a guide slope is arranged on one side of the guide groove, a latch is arranged on the rotary shaft, the latch isin sliding fit in the guide groove, a drive surface is arranged at the bottom of the pressing rod, the drive surface is obliquely arranged, and the inclination directions of the drive surface and theguide slope are opposite. According to the automatic reset pressing valve element, when the pressing rod is pressed, the movable valve plate rapidly rotates forwards to change the on-off state of thevalve element, when the pressing rod is loosened, the movable valve plate rapidly rotates reversely, automatic reset is carried out, and the valve element restores to an initial on-off state.

The invention relates to a self-deboosting tightening manipulator for a C type groove precise screw tightening robot. A connecting cylinder is used for fixing an electromagnet; one end of a central shaft penetrates through a central hole to be corresponding to an iron core; the interior angle of an L-shaped connecting rod is towards the central shaft; a guiding block is provided with three first sliding chutes, and the opening of each of the first sliding chutes is T-shaped; the first sliding chutes are arranged in the radial direction of the guiding block and communicate with each other; centrifugal blocks are positioned in the first sliding chutes; the upper end of each of the centrifugal blocks is T-shaped; the upper ends of the three centrifugal blocks fit the center to form a triangular first concave pit; the lower surface of each of the three centrifugal blocks is fan-shaped; the lower surfaces of the three centrifugal blocks fit to form a complete circle; an arc-shaped second concave pit is arranged on the outer surface of the lower end of each of the three centrifugal blocks; first springs are arranged in the second concave pits; and a clamping claw is arranged in a secondsliding chute. The self-deboosting tightening manipulator has the characteristics of transmitting larger tightening torque and effectively preventing the slippage phenomenon.

The invention discloses an external screwing combined thread piece for a fabricated structure. The external screwing combined thread piece comprises at least a thread piece main piece and a flexible tension piece; the flexible tension piece comprises a flexible tension piece fixing piece and a flexible tension piece traction end; grooves are formed in the outer side of the thread piece main piece,the flexible tension piece fixing piece fixes the flexible tension piece to the thread piece main piece in an anchoring mode, and the flexible tension piece winds in the grooves on the outer side ofthe thread piece main piece and then guides out of a narrow space or a concealed area through a preset passage; and the flexible tension piece traction end is subjected to traction on the outer part,the flexible tension piece rotates the thread piece main piece through the force transferring action of the flexible tension piece fixing piece, and the effect of screwing or loosening the thread piece main piece is realized. Screwing of the external screwing thread piece for the fabricated structure only needs an extremely small space, the problem of screwing of the connecting thread piece of thesmall space and the concealed space of the fabricated space is solved, the external screwing thread piece can be used in connecting and anchoring of the thread piece of a small space or a concealed space of other fields, and the application range of connecting and fastening of the thread piece is greatly expanded, and the application prospects are very broad.

The invention relates to the technical field of nonstandard screw tightening in machining, in particular to a nonstandard screw tightening robot comprising an ejector cap. One end of the ejector cap is provided with a round hole. The nonstandard screw tightening robot further comprises a center shaft. One end of the center shaft extends into a cavity. The other end of the center shaft is providedwith a sliding platform and an ejector rod. The sliding platform, the ejector rod and the center shaft are integrally formed. The outer surface of the center shaft is provided with an elastic piece. The sliding platform is provided with three I-shaped first guide grooves. The nonstandard screw tightening robot further comprises three U-shaped sliding blocks with the openings facing the sliding platform. One end of each U-shaped sliding block is further provided with an inclined convex block with a T-shaped cross section. The other end of each U-shaped sliding block is provided with a clampingand sleeving piece extending out. The nonstandard screw tightening robot further comprises a guide cylinder. The guide cylinder is provided with second guide grooves. The nonstandard screw tighteningrobot has the advantages of transmitting a large tightening torque, achieving reducing without the need for extra power force and being compact in structure and high in reliability.

The invention relates to a flexible tightening head and a tightening method, belonging to the technical field of packaging machinery, which solves the problem that the existing tightening device cannot meet the requirements of tightening the metal external threaded bottle cap and the inner thread of the bottle with large quality, poor elastic-plasticity, small pitch and many turns. The problem. The flexible tightening head includes a mounting base, a telescopic rod, and a spring sleeved on the telescopic rod. The mounting base is provided with a variable-diameter through hole for the telescopic rod to move up and down. The longitudinal section of the variable-diameter through hole is convex; one end of the telescopic rod There is a working part coaxial with the slot on the top of the bottle cap, and the other end is provided with a limiting part for limiting the downward sliding of the telescopic rod; the working part includes a terminal and a working cylinder, and the diameter of the terminal is smaller than or equal to the diameter of the slot. The diameter of the working cylinder is larger than the aperture of the slot hole and smaller than or equal to the lower aperture of the variable diameter through hole. The flexible tightening head of the invention can provide sufficient tightening torque to adapt to the automatic tightening of products with external threads, and the tightening method is easy to operate and significantly reduces the cost.

The invention relates to a self-force return C type groove precision screw tightening robot. A connecting barrel is used for fixing an electromagnet, one end of a center shaft penetrates a center holeto correspond to an iron core, an inner corner of an L-shaped connecting rod faces a center shaft, a guide block is provided with three first sliding grooves with T-shaped openings, the first slidinggrooves are arranged in the radial direction of the guide block, the first sliding grooves are communicated, centrifugal blocks are located in the first sliding grooves, the upper ends of the centrifugal blocks are in T shapes, the upper ends of the three centrifugal blocks are attached to the center to form first pits of triangles, the lower surfaces of the three centrifugal blocks are in fan shapes, the lower surfaces of the centrifugal blocks are attached to form a complete round, arc-shaped second pits are formed in the outer surfaces of the lower ends of the centrifugal blocks, first springs are arranged in the second pits, and clamping claws are located in the second sliding grooves. The self-force return C type groove precision screw tightening robot has the beneficial effects thatlarge tightening moment is transmitted, and the slipping phenomenon is effectively prevented.

The invention concerns a solder spacer comprising an elongate body (102) having one end provided with a tapped hole (104) and an opposite end provided with a transverse support surface (106) from which a smooth centring pin (103) extends protruding, the pin (103) comprising a longitudinal outer passage (108) extending over a least a portion of the length of same to the transverse support surface (106), allowing a molten soldering paste to rise by capillarity to the transverse support surface (106). The invention also concerns a module (112) comprising such a spacer.