Screw limiting mechanism, screw feeding mechanism, screw screwing machine and screw locking method

Abstract

The invention discloses a screw limiting mechanism, a screw feeding mechanism, a screw screwing machine and a screw locking method. The screw limiting mechanism comprises a screw positioning channel with one exposed end and a material taking channel communicating with the screw positioning channel, the cross section of the screw positioning channel is T-shaped, and the material taking channel is located above the transverse part of the screw positioning channel. The extending direction of the material taking channel is perpendicular to the extending direction of the screw positioning channel.According to the scheme, the T-shaped screw positioning channel is adopted in the screw limiting mechanism, meanwhile, the extending direction of the material taking channel is perpendicular to that of the screw positioning channel, screws only move in the positioning channel when entering the material taking position, and a T-shaped channel structure can avoid the problem that the screws are notturned over in the conveying process; and the state that heads of the screws right facing the material taking channel face downwards and the tails of the screws face upwards is effectively guaranteed,the feeding precision is improved, and meanwhile, feeding of the screws of various specifications is suited.

Description

technical field [0001] The invention relates to the field of screw machines, in particular to a screw limiting mechanism, a screw feeding mechanism, a screw screwing machine and a screw locking method. Background technique [0002] The screw machine is a small machine that automatically locks screws. Its action structure can generally be divided into two parts: the feeding part and the electric batch part. The feeding part is responsible for screening and providing screws, and the electric batch part is responsible for taking screws and locking screws. The generation of the machine not only improves the working efficiency but also reduces the intensity of manual work. [0003] The feeding part is the core part of the screw machine, the stability and accuracy of its feeding directly affects the realization of subsequent batch picking and locking. [0004] In various air blowing feeding structures, the screws blown through the air pipe are usually received and limited by scre...

AI Technical Summary

Problems solved by technology

[0006] However, for some small-sized screws, such as screws with specifications below M3 and / or with relatively small length and diameter, due to the small size of the screw, when the screw falls obliquely from the inclined channel into the longitudinal channel, the height difference and the larger The diameter of the large feeding channel makes the screw have sufficient turning space, so it is difficult to ensure that the head end of the screw is facing down and the tail end is facing up, which causes the subsequent screwdriver to absorb the screw and lock it by vacuum suction. , which greatly affects the reliability of screw locking

[0007] At the same time, when working, the jaws need to be opened and closed repeatedly under the force of the bit head, and there is continuous friction loss between the bit head and the jaws. After long-term use, the jaws will also be deformed due to wear, and the jaws will be deformed after deformation. As a result, the matching accuracy of multiple jaws is reduced, and the positioning accuracy of the jaws to the screw is reduced, resulting in the inability to effectively grasp

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