Coaxial double-ended grinding machine
The utility model relates to a kind of lathe, especially relates to a kind of coaxial double-ended grinding machine.
Double-ended grinding machine is a kind of high efficiency plane machining lathe, and it can process two and have precision height and the low parallel end faces of surface roughness in one stroke.Machinery Tool Automation degree is high, within general one hour, can process thousands of workpiece, in the industries such as automobile, tractor, bearing, magnetic material, be widely used.Double-ended grinding machine is that workpiece is placed between two emery wheels that are arranged in parallel, and two emery wheels are respectively rightabout rotation, and emery wheel to another emery wheel direction feeding, reaches the object that two parallel end faces of workpiece are polished by feed mechanism.
Existing double-ended grinding machine, two emery wheels have separately independently central shaft, and the depth of parallelism of two central shafts directly has influence on the depth of parallelism of two wheel faces.In use, require has the very high depth of parallelism between two emery wheels, the high efficiency of guarantee lathe and high accuracy to lathe.General double-ended grinding machine, because restriction and the lathe of the accuracy of manufacture can exist micro-strain in use year in year out, directly causes the production efficiency of lathe and Product Precision to reduce.
Utility model content
The utility model aims to provide a kind of coaxial double-ended grinding machine, and it is simple in structure, safe and reliable, in use can effectively guarantee the depth of parallelism of two wheel faces.
The technical solution of the utility model is a kind of coaxial double-ended grinding machine, comprise emery wheel, lower grinding wheel and central shaft, upper emery wheel and lower grinding wheel are driven by upper grinding wheel drive mitor and lower grinding wheel motor respectively, described central shaft is arranged in upper emery wheel centre bore and lower grinding wheel centre bore by bearing, and central shaft one end is fixed on lathe bed.
Preferably, described upper emery wheel connects feed mechanism.
Preferably, described feed mechanism comprises feeding motor.
The utility model is simple in structure, safe and reliable, can effectively guarantee two depth of parallelisms between wheel face.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model emery wheel and center spindle structure schematic diagram;
In figure: the upper emery wheel of 1-, 2-lower grinding wheel, 3-central shaft, the upper grinding wheel drive mitor of 4-, 5-lower grinding wheel motor, 6-feed mechanism, 7-lathe bed, 8-feeding motor, 9-bearing.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model discloses a kind of coaxial double-ended grinding machine, comprise emery wheel 1, lower grinding wheel 2 and central shaft 3, described central shaft 3 is through upper emery wheel 1 centre bore and lower grinding wheel 2 centre bores, central shaft 3 respectively with upper emery wheel 1 centre bore, between lower grinding wheel 2 centre bores, be provided with bearing 9, upper emery wheel 1 and lower grinding wheel 2 are driven by upper grinding wheel drive mitor 4 and lower grinding wheel motor 5 respectively, upper grinding wheel drive mitor 4 and lower grinding wheel motor 5 are separately positioned on feed mechanism 6 and lathe bed 7, during motion, upper emery wheel 1 and lower grinding wheel 2 are rightabout rotation, described central shaft 3 one end are fixed on lathe bed 7 casings, described feed mechanism 6 comprises feeding motor 8, during distance in needs adjustment between emery wheel 1 and lower grinding wheel 2, by feeding motor 8, control feed mechanism 6 away from lathe bed 7 or approach lathe bed 7.
During work, start coaxial double-ended grinding machine, in control, grinding wheel drive mitor 4 and lower grinding wheel motor 5 make emery wheel 1, lower grinding wheel 2 be respectively both forward and reverse directions rotation, the distance of adjusting between two emery wheels by feed mechanism 6, workpiece is put between two emery wheels, the upper and lower surface of workpiece is carried out to grinding work simultaneously, because two emery wheels are jointly around 3 rotations of a central shaft, can effectively guarantee the depth of parallelism of two wheel faces, thereby effectively guaranteed the depth of parallelism after workpiece two surfacings, and the otherwise accuracy of manufacture of lathe is just very little on its impact.In lathe use year in year out, owing to there being a common central shaft 3 between two emery wheels, the micro-strain of lathe is also very little on the service precision impact of lathe.
Certainly; the utility model also can have other various embodiments; in the situation that not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.