Screw locking machine and calibration method for initial screw driving position of screw locking machine

Abstract

The invention discloses a screw locking machine and a calibration method for the initial screw driving position of the screw locking machine. The calibration method for the initial screw driving position of the screw locking machine comprises the steps that when a feeding driving part moves in the feeding direction from the initial feeding position, the displacement S1 of the feeding driving part and the displacement S2 of an electric screwdriver in the feeding direction are obtained; when the S1 is not equal to the S2, the S1 at the moment is set as the screw driving displacement S11; the initial screw driving feeding position S0 is calculated according to the S11, S0=S11-Sn, and Sn is a set value, so that the initial screw driving feeding position can be automatically calibrated, the calibration precision of each time can be ensured due to the fact that the initial screw driving feeding position is calculated by the aid of a set formula, and the problems of low efficiency and poor accuracy caused by manual calibration are avoided.

Description

technical field [0001] The invention relates to the technical field of screw locking equipment, in particular to a screw locking machine and a method for calibrating the initial position of the screw. Background technique [0002] When the automatic locking screw machine is working, it is necessary to quickly move the electric screwdriver to the initial position of screwing, and then start screwing at a slow speed. The initial position of screwing has a great influence on the entire function: if the initial position of screwing is far from the position of the screw hole If it is too large, the success rate of the electric screwdriver to absorb the screw through vacuum will be reduced. At the same time, the time for the screw to reach the insertion position will be longer due to the increase of the downward distance when screwing, which will affect the beat of the screw lock; if the initial position of the screw is too far away from the screw hole Nearly, the screw cannot be ...

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Problems solved by technology

[0002] When the automatic locking screw machine is working, it is necessary to quickly move the electric screwdriver to the initial position of screwing, and then start screwing at a slow speed. The initial position of screwing has a great influence on the entire function: if the initial position of screwing is far from the position of the screw hole If it is too large, the success rate of the electric screwdriver to absorb the screw through the vacuum will be reduced. At the same time, the time for the screw to reach the insertion position will be prolonged due to the increase of the downward distance when screwing, which will affect the beat of the screw lock; if the initial position of the screw is too far away from the screw hole Nearly, the screw cannot be completely buried in the sheath of the electric screwdriver (when the screw is completely buried in the screwdriver, the screwdriver drives the screw to rotate to realize the righting of the screw by the screwdriver). When fully matched with the bit head, it is easy to cause the deviation between the electric screwdriver shaft and the screw shaft, making it difficult for the screw to enter the teeth

[0003] In the prior art, when the automatic screw locking machine replaces the screw or assembles the tooling, the initial position of the screw when the screw is locked must be re-calibrated, especially for communication and electro-acoustic products. There are many types of products, various product shapes, and screw sizes. Small, it is very difficult to manually calibrate on site, and a lot of time is wasted in debugging

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