Automatic circulation type material bin and control system thereof

Abstract

The invention provides an automatic circulation type material bin. The automatic circulation type material bin solves the technical problem that in the prior art, the device is complex in structure and large in occupied space due to the fact a multi-layer stacking mode is adopted, and the automatic circulation type stock bin mainly and structurally comprises a reference plate, an annular slideway,a transmission device, a workpiece stacking device and a jacking driving device, wherein the annular slideway is arranged on the reference plate and formed by a metal template; the transmission device is arranged on the inner side of the annular slideway and moves along with the annular slideway; the workpiece stacking device is driven to freely slide in the annular slideway by a chain; and the jacking driving device is arranged below the reference plate and is used for supporting the reference plate and jacking the workpiece stacking device. The invention further provides a control system ofthe automatic circulation type material bin. The control system solves the problem that in the prior art, when the device is used for conveying the workpiece stacking device, the output value of a servo motor or a stepping motor can generate accumulative error along with the increase of time and the conveying length, so that a supporting plate cannot be accurately conveyed to the tail end of a transmission chain; and the control system mainly adopts a final position detection mode, so that the accumulative errors are avoided.

Description

technical field [0001] The invention relates to a workpiece storage bin for loading and unloading a machine tool, and belongs to the technical field of mechanical automation. Background technique [0002] Aiming at the workpiece storage silo for machine tool loading and unloading, the technical solutions disclosed in the prior art include: Ningxia Giant Robot System Co., Ltd. applied for the name "CNC Machine Tool Automatic Loading and Unloading Lifting Device", the publication number is CN202240681U, and the public date is 2012.05.30, the device uses a servo motor or stepping motor combined with a pallet position detection device to precisely control the rising position of the pallet, and the motor drives the chain to drive the connecting plate and the pallet to move. Due to the use of chain transmission or toothed belt transmission, the transmission During the transmission process of the chain, with the accumulation of time and transmission length, the output value of the ...

AI Technical Summary

Problems solved by technology

[0002] Aiming at the workpiece storage silo for machine tool loading and unloading, the technical solutions disclosed in the prior art include: Ningxia Giant Robot System Co., Ltd. applied for the name "CNC Machine Tool Automatic Loading and Unloading Lifting Device", the publication number is CN202240681U, and the public date is 2012.05.30, the device uses a servo motor or stepping motor combined with a pallet position detection device to precisely control the rising position of the pallet, and the motor drives the chain to drive the connecting plate and the pallet to move. Due to the use of chain transmission or toothed belt transmission, the transmission During the transmission process of the chain, with the accumulation of time and transmission length, the output value of the servo motor or stepping motor will produce cumulative errors, and the pallet cannot be accurately transmitted to the end of the transmission chain

Our company applied for a patent document titled "A device for lifting and lowering an adjustable tray for an automatic silo", the publication number is CN205465399.U, and the authorized announcement date is 2016.08.17. The motor of the device drives the ball screw pair, the wire The rod nut drives the optical axis to move, and the optical axis lifts the pallet to complete loading and unloading. Since the jacking mechanism is composed of a power part, a ball screw pair, a supporting bearing seat, and a jacking structure, the whole structure is composed of multiple parts. The size takes up a lot of space and is inconvenient to install

In addition, the above-mentioned patented technologies all adopt a multi-layer palletizing method, and are designed with loading stations and unloading stations respectively, with complex structures.

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