4results about How to "Avoid excessive gaps" patented technology

The application belongs to the technical field of automobiles and discloses a front windshield lower decorative plate and an automobile, which comprise a front windshield lower decorative plate body and a side shielding plate which is detachably installed on the side of the front windshield lower decorative plate body and covers the exposed area of a sheet metal gutter assembly. The side shielding plate comprises a hard rubber part and a soft rubber part. The hard rubber part is shaped according to the contour of the exposed area of the sheet metal, and the soft rubber part is arranged on the circumferential edge of the hard rubber part and is attached to the adjacent automobile body part. The application aims to solve the problems of insufficient shielding caused by the exposed joint of the front windshield lower decorative plate and the sheet metal gutter assembly and poor sealing caused by the direct exposure of the joint gap between the two, improve the overall appearance of the front compartment area, and prevent dust and water vapor from the outside from entering the interior of the front compartment through the gap.

The utility model provides a gear processing is with burr cleaning device, including the branch, still include: positioning subassembly is located on the branch, is used for positioning the gear of waiting for cleaning burr, cleaning subassembly is located on the branch, including the group U shaped board of sliding connection on the branch, the group of symmetrical annular abrasive gear of installation on the group U shaped board, set up on the branch are used for driving the drive structure of group annular abrasive gear reciprocating lift and fall and are used for the stable pressure holding mechanism of gear, positioning subassembly includes the sleeve of inlay on the surface of branch and fixedly connected with the support frame of branch bottom surface. Through the setting cleaning subassembly, can let annular abrasive gear intermittent from gear top and gear below enter the gear slot and carry out the polishing deburring, ensure the effect of polishing deburring to gear bottom and gear top gear slot face edge, need not twice to turn over can realize full tooth surface burr cleaning, further guarantee the cleaning efficiency to burr.

The invention belongs to the technical field of spin riveting control, and discloses a self-adaptive control method and system for a spin riveting gap of a rotary fastener. Multi-dimensional key parameters of the fastener are comprehensively captured in a collection and calibration stage, and cold rolling physical characteristics of spin riveting machining are combined; constructing three core models of dynamic prediction of the spin riveting gap, gap springback prediction and interference factor association, and then realizing real-time linkage of parameters, gaps and interference factors through an adaptive adjustment algorithm; aiming at various dynamic interferences such as material parameter difference, tool abrasion and temperature fluctuation, accurate identification and targeted adjustment can be carried out, the problem that a gap is too large or too small due to fixed parameters is avoided, and the bonding strength, the coaxiality and the anti-fatigue performance of the rotary fastener are improved; a cooperative detection system is formed by a displacement sensor, a torque sensor and a laser gap sensor, and dynamic changes of gaps in the spin riveting process are accurately captured through double verification of indirect detection and direct detection.

This invention provides an electrode assembly and a battery, relating to the field of electrode assembly technology. The electrode assembly is a wound structure formed by stacking positive and negative electrode sheets and winding them along a winding direction. The electrode assembly includes a straight region and a corner region, with the corner region located at both ends of the straight region. The positive electrode sheet includes a positive electrode starting segment located in the straight region, and the negative electrode sheet includes a negative electrode starting segment extending beyond the positive electrode starting segment in the opposite direction of the winding direction. The negative electrode starting segment extends through the corner region and terminates in the straight region. The projection of the positive electrode starting segment along a direction perpendicular to the straight region at least partially coincides with the projection of the negative electrode starting segment along a direction perpendicular to the straight region. The free end of the negative electrode starting segment shifts to form an approximately triangular shape with the negative electrode sheet, providing support for the corner region and reducing the collapse of the electrode assembly. This can further reduce the slippage of the negative electrode sheet and improve the problem of lithium plating in the corner region.