Constant force compensation device

Abstract

The invention discloses a constant force compensation device. The constant force compensation device comprises a constant force control part and a constant force execution part. The constant force control part comprises an air source, an air inlet and outlet pipe connected with the air source, an electrical proportional valve arranged on the air inlet and outlet pipe and a digital flow controller. The constant force execution part comprises a fixing flange, an air cylinder fixed to the fixing flange and a tool installation flange driven by the air cylinder; and displacement of the tool installation flange is monitored by a sensor. When the constant force execution part meets conditions like workpiece deformation, compensation for the workpiece deformation can be carried out through the constant force control part, and therefore it is guaranteed that the running speed of the constant force execution part is stable, and pushing force applied outwards is constant. When the working direction of the constant force execution part changes, an electromagnetic valve in the constant force control part conducts reversing on inlet and outlet air of the air cylinder and then conducts compensation for the constant force execution part, and it is guaranteed that action force output by the constant force execution part keeps constant all the time. By means of the constant force compensation device, it can be effectively guaranteed that a polishing tool or other tools apply the contact action force to products.

Description

Technical field: [0001] The invention relates to the technical field of grinding and deburring of products and constant force compensation, in particular to a constant force compensation device. Background technique: [0002] At present, the wheel hub processing production line in the automobile industry is composed of casting machines, drilling machines, heat treatment machines, machining centers, and coatings. That is: the molten aluminum is die-cast into a wheel hub through a casting machine, and then heat-treated to adjust the quality of the wheel hub, then finished by a machining center, and finally sprayed with paint. In the processing and manufacturing engineering of mechanical parts, even the finishing process cannot avoid the occurrence of burrs. The existence of burrs will have a negative impact on the processing accuracy, assembly accuracy, processing positioning and appearance quality of the parts. Parts with a painted layer will also be rusted and peeled off du...

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention: the constant pressure automatic compensation system of the grinding and deburring machine in the prior art can only adjust the proportional control valve according to the monitoring of the pressure sensor, and then make the cylinder output a constant thrust, but it cannot ensure the output of the cylinder. Adjust the feed speed of the cylinder under the premise of constant thrust

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