3results about How to "Avoid manual replacement" patented technology

The application relates to the technical field of micro impact, and provides an impact experiment device and system capable of adjusting liquid drop physical property parameters and surface characteristics. In the device and system, a rotating telescopic shaft coaxially arranged below a syringe can rotate along the circumference while being axially telescopic, meanwhile, a cavity needle cylinder is uniformly distributed along the circumference of the rotating telescopic shaft, one different-specification drop needle head is correspondingly arranged in each cavity needle cylinder, the different-specification drop needle heads are adjusted to face the liquid outlet of the syringe along the circumference of the rotating telescopic shaft, and the drop needle head facing the liquid outlet of the syringe is engaged with or separated from the liquid outlet of the syringe along the axial telescopic movement of the rotating telescopic shaft. Therefore, the specification of the drop needle head is adaptively adjusted, manual replacement of the drop needle head is effectively avoided, control over liquid drops of different sizes is realized, and the drop positions of liquid drops of different sizes before and after replacement of the needle head of different specifications are effectively ensured to be the same.

The utility model provides an adjustable grabbing device of a one-piece carton wrapping machine. The adjustable grabbing device comprises an adjusting assembly, a plurality of clamping jaws and a stabilizing assembly. The clamping jaw comprises four position adjusting jaws and two positioning jaws; the adjusting assembly comprises a supporting column, two distance adjusters are arranged below the supporting column, the upper ends of the two distance adjusters are connected with supports, the supporting column penetrates through the middles of the two supports, and the lower ends of the two distance adjusters are connected with two symmetrical position adjusting claws; each distance adjusting device is used for adjusting the distance between the two corresponding position adjusting claws, the two distance adjusting devices are of an X-shaped structure and are vertically layered, and an electric telescopic rod is connected between the side walls of the two distance adjusting devices. Through the arrangement of the position adjusting assembly, the distance between the clamping jaws can be adjusted according to the specifications of the cartons to adapt to the cartons of different types, the application range is expanded, the working efficiency is improved, and the situation that when the types of the cartons change, the grabbing mechanism is manually detached and replaced, and time and labor are consumed is avoided.

This invention relates to the field of welding equipment technology and discloses an intelligent welding device for PCBA circuit board manufacturing. Filter boxes are fixedly connected to both sides of the welding frame, and air storage boxes are fixedly connected to the top of each filter box. A fixing component is fixedly sleeved inside the welding frame, and a negative pressure system is fixedly connected to the bottom of the fixing component. An intelligent welding system is movably connected to the top of the welding frame. Air inlet pipes are fixedly connected to the top of each air storage box. Through the fixing component and the negative pressure system, when fixing PCBs of different sizes or irregular shapes, the negative pressure system drives the air inside the fixing component to be discharged, creating a negative pressure at the top of the fixing component. This allows PCBs of different sizes or irregular shapes to be adsorbed and fixed at the top of the fixing component, thereby reducing the need for fixture replacement, reducing manual operation steps, reducing labor intensity, and ultimately improving the welding manufacturing efficiency of the welding device.