Special fasteners for automobile front guide frame

Abstract

The invention discloses a special fastener for a front-end guide frame of an automobile, comprising: a screw body, a torque monitoring nut and a nut; The torsion drive assembly inside the cap, the inner cavity of the torque monitoring nut is fixedly equipped with a torque prompting assembly; the inner side of the torque monitoring nut is provided with a movable groove, and the torque prompting assembly includes static magnets respectively fixed on the top surface of the inner cavity of the torque monitoring nut Magnetic ring on top of block and screw body. In the present invention, by adding a torque prompting component structure inside the torque monitoring nut, after the tightening reaches the set torque, the pull rope pulls the jumping shrapnel to move, and the prompting is issued through the deformation of the jumping shrapnel. Sound and vibration effects are used to prompt, and the ratchet rod disengages from the unscrewing teeth and engages with the tightening teeth, so that it cannot continue to be tightened with force, avoiding screw breakage or screw tooth damage caused by excessive screw torque.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a special fastener for an automobile front end guide frame. Background technique [0002] The front-end guide frame of the car is a cylindrical threaded fastener with a nut. It is a type of fastener consisting of a head and a screw. It needs to be matched with a nut to fasten and connect two through-holes. Parts, this connection form is called bolt connection, if the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection, an inseparable part of modern traffic on cars and motorcycles Various vehicles, and the fixing of various parts of automobile products are mostly fixed by bolts. The front end guide frame of the automobile is an important part of the automobile power steering machine. The end surface of the screw rod is processed with a symmetrical torsion convex key. Its accuracy and mutual position requirements are...

AI Technical Summary

Problems solved by technology

The front end guide frame of the automobile is an important part of the automobile power steering machine. The end surface of the screw rod is processed with a symmetrical torsion convex key. Its accuracy and mutual position requirements are high: ±0.025mm. Generally, it is detected by Wangong display or shaking dividing head. The cost of detection equipment is high, the detection is difficult, and the detection time is long.

[0003] However, the fastening effect of the bolt fasteners fixed by the existing automobile guide frame is not good, because a large amount of vibration will be generated during the use of automobiles and motorcycles, and the insufficient torsion of the fasteners will easily cause the parts of the guide frame to be fixed with the vibration. It will loosen and cannot meet the existing needs, and if the torque is too large, it is easy to cause the risk of screw breakage or wire slippage. A specified torque is required. There are many types of hand tools required to loosen or lock the screw to the specified torque, such as plum blossoms. Torque wrench, socket wrench, ratchet wrench or open wrench, etc. are all. The structure of the wrench generally has a head that can be embedded with the screw at the front end of a handle, which is used to pull the screwed workpiece. Apply force to the handle to generate torque to drive the head to screw the screw into the object to achieve the effect of tightening or loosening, so that the components of various industries can be assembled and combined by the screw, and the objects can be combined and repeated Disassembles, so it can be used in a variety of application sites of different sizes

[0004] In view of this, the existing problems are studied and improved, and special fasteners for the front-end guide frame of the car are provided to solve the existing problems that the screw cannot be fixed to the torque prompt and is prone to loosening during vibration. Through this technology, To achieve the purpose of solving problems and improving practical value

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