Bar conveying device

Abstract

The invention provides a bar conveying device, belongs to the technical field of machinery, and solves the problems that the conventional bar conveying device has large vibration and low feeding precision in the process of conveying. The bar conveying device comprises a machine frame, wherein the machine frame is provided with a guide mechanism used for enabling a bar to move along one direction;the machine frame is also provided with a fixture capable of clamping the bar; and the fixture does linear reciprocating motion under the drive of a driving mechanism, stays in a state of clamping the bar when moving towards the bar moving direction, and stays in a loose state when returning towards the opposite direction. The bar conveying device has the advantages of high feeding precision, high feeding efficiency, little vibration, less noise, long service life and the like.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to a workpiece conveying device, in particular to a bar material conveying device. Background technique [0002] Although the CNC lathe can automatically complete the machining of the part car at one time according to the set program. However, the automatic completion of the turning process is only from the beginning of the part processing to the completion of the turning process, and the feeding of the parts processed from the bar one by one still needs to be done manually. That is, every time a part is processed, it is necessary to open the door of the lathe, loosen the bar holder, manually shift the material, measure and adjust the length, lock the bar holder to clamp the bar, and close the door for the next same lathe processing. Every time a part is processed, the above-mentioned low-efficiency manual and complex operation process must be repeated, which makes the ...

AI Technical Summary

Problems solved by technology

The bar is constrained by ferrules that are adapted to its outer diameter and installed on the beam at a certain interval, that is, the bar is contained in several ferrules. This type of automatic feeding device has the following disadvantages: 1. Due to the long bar and There are different degrees of bending. When the bar rotates, a large centrifugal force will be generated, which will be transmitted to the material rack through the restraining ring or the restraining tube, so that the material rack will vibrate strongly. At the same time, the vibration will be transmitted to the spindle of the machine tool through the bar itself. , which seriously affects the accuracy of the machine tool spindle and shortens the service life of the machine tool

2. Vibration will greatly shorten the service life of the tool and reduce the processing quality. In severe cases, the cutting process cannot be carried out

3. The noise generated by the vibration is large, which deteriorates the working environment

4. The feeding mechanism adopts steel ball type, the clamping is not firm enough, the feeding accuracy is not high, and it is difficult to realize the automation of feeding

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