Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A rolling and conical surface technology, applied in the field of rolling devices, can solve problems such as unsatisfactory finishing effects, achieve good rolling surface quality, overcome dislocation movement resistance reduction, good surface quality and mechanical properties
Active Publication Date: 2020-06-02
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF6 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, the smoothing effect of ordinary rolling is not ideal. The introduction of high-temperature thermal field, frequency conversion pulse magnetic field and ultrasonic machining technology into rolling processing is of great significance to the improvement of the surface quality of shaft parts with tapered surfaces.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] like Figure 1-4 As shown, the present invention designs a device 29 for multi-field coupling cone rolling processing that can be installed on an ordinary CNC lathe 30; the rolling knife 1 is installed on the end of the horn of the ultrasonic vibration system 3 through interference fit, The rolling knife can change different rolling angles according to different workpiece cone angles, and the ultrasonic vibration system 3 can provide ultrasonic vibration for the cone rolling; the ultrasonic vibration system 3 is installed on the dynamometer 5 through the horn support structure 2, The three-way rolling force in the rolling process can be monitored in real time through the dynamometer 5; the dynamometer 5 is fixed on the tool changer 4 of the CNC lathe 30 through bolt connection. The temperature controller 11 controls the workpiece heating temperature by controlling the current value in the thermocouple coil 10 . The frequency conversion pulse magnetic field strengthenin...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention provides a multi-field coupling roll finishing device for a conical surface. Multi-field coupling particularly means coupling of a high-temperature thermal field, a variable frequency pulsed magnet field and an ultrasonic field. The multi-field coupling roll finishing device comprises a rolling knife, an amplitude-change pole, a transducer, an ultrasonic generator, a thermocouple coil, a temperature controller, a pulsed magnet field intensifying system, a dynamometer and a mounting rack. A novel rolling knife structure is designed, so that different rolling wheels can be replacedaccording to different rolling workpieces, meanwhile, different rolling angles can be replaced according to different conical surface angles of workpieces, and accordingly, the use is convenient andreliable. According to the multi-field coupling roll finishing device, the heating temperatures of the workpieces can be controlled by a temperature controller, the rolling temperature of the workpieces is increased, and the atomic vitality of the workpieces is enhanced, dislocation movement is overcome, the resistance is reduced, and accordingly, a favorable rolling surface quality is acquired. The conical workpieces are placed in a pulsed magnet field acting region, so that the hardness and the wear resistance of the workpieces are improved. The value of a rolling force in a rolling processcan be monitored in real time by the dynamometer, and the rolling force in the rolling process is kept constant by feedback of a digital control system. An ultrasonic rolling system which can be mounted on a common lathe is designed to roll a conical-surface shaft part, the surface roughness of the part can be reduced, the surface hardness is improved, and favorable surface quality and mechanicalperformance are acquired.
Description
technical field [0001] The invention relates to a rolling device, in particular to a device for multi-field coupling conical surface rolling processing. The multi-field coupling specifically refers to the coupling of a high-temperature thermal field, a variable frequency pulse magnetic field and an ultrasonic field. Background technique [0002] Parts with tapered shafts are widely used in mechanical structures, and most of these parts are obtained by turning. After turning, the surface of the parts will leave turning textures and form microscopic defects. Shaft parts are subject to large torque, bending moment and axial alternating tensile pressure in actual work, and fatigue fractures are prone to occur from defects on the outer surface of the outer circle, thus affecting the service life of shaft parts. Therefore, it is necessary to carry out rolling processing on the surface to improve the surface quality and fatigue life. [0003] The rolling process makes the peaks on...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.