| In order to solve the problems of low efficiency,low processing precision,high processing strength and low fixture precision during the installation and transportation of threaded retainer rings,this paper developed a cylinder-driven linear induction motor and used a programmable controller to realize the entire thread.The function of precise positioning and down pressure control in the process of carrying and pressing the retaining ring finally put forward and developed an automatic feeder for conveying and depressing the threaded retaining ring.The workbench uses a linear induction motor to drive the feeding process to achieve the upward movement of the threaded collar.The automatic feed feeder system for conveying and depressing the threaded collar is connected to the position and distance sensors by a programmable controller,and realizes the threaded collar transport.In the process of precise positioning and pressure control,combined with human-machine interface to achieve the entire system of parameter settings and display.In order to meet the precise positioning and press-down control during the transportation and depressing of the threaded retainer ring,this article begins with the appearance design of the automatic feeder and gradually studies the stroke positioning of the feeder,and the sensor connection and the threaded retainer ring press down to the bolt.When the fixture,work efficiency,PLC control system parameter settings and so on.The thread-retaining ring automatic feeder studied in this paper is mainly designed for the size of the threaded retainer ring: outer diameter 20 mm,inner diameter 10.2mm,and thickness 1.5mm.The bolt size when the threaded retainer is pressed down is: diameter 10 mm and length 40 mm.The parameters of the automatic feeder itself are as follows: stroke range 100 cm,positioning accuracy ±0.2mm,control voltage 220 V,and the main body is made of aluminum alloy.In the early stage,the composition design was started from the actual requirements,simulation was performed,and the optimization was gradually carried out in the later actual production process.Starting from the precision of the displacement sensor and the laser distance sensor,combined with the overall design of the automatic feeder,the threaded retaining ring and the bolt were optimized to be coaxial.Degree of accuracy,to ensure that the thread retainer ring in the press process as far as possible without eccentricity to the workpiece caused by the impact of life loss,etc.,the use of programmable control system to optimize the setting parameters to connect with the automatic feeder body,control the automatic feeder from the feeding,Positioning,pressing down,sensing down pressure,positioning accuracy and working efficiency in the process of discharging,formulating flexible fixtures and replaceable parts,enabling them to be used in different sizes of threaded retainer ring press work,greatly improving The range of application of automatic feeders is diversified.Finally,the basic structure and working principle of the push-down system of the threaded retaining ring in this paper are introduced.On the hardware device,detailed description of the PLC and its expansion module,the selection basis of the human-machine interface,the selection basis of the motor model,the basis of the automatic feeder appearance design,establish a good electrical equipment on the basis of a good hardware device Between the connection and communication;in the software design of the PLC main program and man-machine interface,through the combination of PLC and human-machine interface to make the entire system of parameter setting and change optimization is more convenient in the actual work of the operator according to the automatic feeder work The situation is adjusted.The automatic screw feeder for screw thread ring press developed in this paper has been successfully put into use on the market.The actual results show that the automatic feeder with threaded ring not only improves the production efficiency,but also reduces the strength of manual work;on the other hand,Compared with the traditional automatic feeder,the screw thread ring lowering automatic feeder improves the application range of the components in the clamping fixtures and parts flexible replacement,and brings convenience to manufacturing.Finally,the automatic feeder developed in this paper is more ergonomic in appearance design,and the choice of body materials is more in line with the requirements of green sustainable development. |