Screw Inspection Machine

Abstract

The invention discloses a screw detecting machine. The screw detecting machine comprises a screw loading mechanism, a rotating disc, multiple screw defect detecting devices and multiple screw recovery mechanisms. The screw loading mechanism is used for loading screws on the rotating disc, and the screws to be detected are placed in screw placing holes in the rotating disc through the screw loading mechanism, the screws are conveyed to corresponding detecting positions through rotation of the rotating disc. The screw defect detecting devices are used for performing defect detecting on the screws which are rotated to the corresponding detecting positions through the rotating disc. The screw recovery mechanisms comprise one or more defective screw recovery mechanisms and one or more non-defective screw recovery mechanisms, an outer ring component is arranged on the outer side of the rotating disc, gaps are formed in the parts, corresponding to the screw recovery mechanisms, of the outer ring component, and each screw recovery mechanism comprises a screw pushing block, a connecting plate, a screw pushing block fixing part, a seal plate and a driving mechanism, wherein the screw pushing block and the screw pushing block fixing part are connected through the connecting plate, the screw pushing block fixing part is fixed to the seal plate, and the seal plate is connected with the driving mechanism. The seal plates are arranged in the gaps, corresponding to the corresponding screw recovery mechanisms, of the outer ring component to form a part of the outer ring component.

Description

technical field [0001] The invention relates to the field of screw defect detection, in particular to a screw detection machine for detecting defects of precision screws. Background technique [0002] Precision screws are referred to as small screws, also known as tiny screws. They are tiny fasteners that connect product materials. They are small in shape, but they can play a key role in connecting and fastening. They are widely used in electronics, electricity, electrical appliances, furniture, mechanical equipment, etc. . The detection content of precision screws generally includes: head height, diameter and head cracks, deformation, head groove shape, depth and foreign matter, thread part length, outer diameter, inner diameter and pitch, sharp point and broken tail at the end of the thread . [0003] The traditional precision screw inspection method is generally manual sampling inspection, that is, the operator selects a certain number of samples from a batch of product...

AI Technical Summary

Problems solved by technology

[0005] However, the method of blowing the screws into the recycling box by blowing air is not reliable, which may cause good products to be mistakenly entered into the defective product recycling box, and defective products to be mistakenly entered into the good product recycling box

Moreover, since the blowing head uses high-pressure gas, it is noisy during operation

[0006] In addition, in the above-mentioned patent documents, since there is only one recycling box for good products, when the recycling box for good products is full, the equipment needs to be stopped, and the operator restarts the equipment after packaging. Due to the fast screw detection speed, the equipment often Shutdown for receiving and packaging, resulting in low utilization rate of the screw inspection machine

[0007] Furthermore, in the existing automatic screw inspection machine, in order to ensure the effective elimination of defective products, the rotation speed of the turntable should not be too fast, otherwise it will cause the failure of the removal of defects, so the rotation speed of the turntable is relatively slow, which is also one of the reasons for the low detection efficiency. one

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