nullPolyhedron flour milling processing in early days usually uses manual operations，Not only labor intensity is big，Production efficiency is low，And the quality of product cannot ensure，Percent defective is high，And existing polyhedron grinding device is usually and is provided for clamping polyhedral clamping device in one end of rotating shaft，And make polyhedron and the revolving wheel mantle friction of lower section realize flour milling processing，After polyhedron completes a machined surface，Need to rotate polyhedron and come conversion face，In order to improve production efficiency and machining accuracy，Turn face process and typically realize conversion automatically by machine driving，And the polyhedron after turning face by the self-lock force realization between worm and gear turns face and positions，But owing to there is certain gap between worm gear and worm screw，And along with the prolongation of the time of use，Abrasion causes gap between the two to be strengthened，Therefore to turn face positioning precision low for Polyhedron processing，Polyhedral crudy cannot be ensured.
Chinese patent " a kind of sanding apparatus for processing crystal product (CN2801391Y) " discloses the sanding apparatus of a kind of crystal product, it includes crystal work pieces process platform, emery wheel mechanism, drive the motor that emery wheel mechanism rotates, wherein the rotating disk of emery wheel mechanism is arranged at the top of crystal work pieces process platform, it is characterized in that, described crystal work pieces process platform is by crystal workpiece dop, rotating shaft, universal coupling, main shaft, worm and gear, motor, rotating-shaft support devices is constituted, motor drives worm and gear, worm and gear drive shaft, main shaft drives universal coupling motion, universal coupling drives rotating shaft to rotate, rotating shaft drives crystal workpiece dop to rotate through rotating-shaft support devices.This device is to drive worm and gear to drive the dop of clamping crystal workpiece to rotate by motor to realize machined surface conversion, but owing to device being not provided with the detent mechanism of crystal workpiece, i.e. corner or turn face locking mechanism, back clearance between worm and gear makes crystal workpiece produce in the course of processing to rock, thus reduces the processing longitude of product.
Chinese patent " grinding head device (CN201645285U) of a kind of jewelry flour milling machine " discloses again a kind of grinding head device, it includes by turning face worm gear and turning the Zhuan Mian mechanism that surface-worm is constituted, described Zhuan Mian mechanism is located in casing, the corner drive mechanism being respectively provided on two sides with change Zhuan Mian mechanism pitch angle and corner locking mechanism at described casing, described corner drive mechanism is connected with the side of casing by corner main shaft, described corner locking mechanism is connected with the opposite side of casing by coaxial corner countershaft, the face worm gear set that turns therein is located at axle head and is provided with on the power transmission shaft of clamping device, the braked wheel being provided with on power transmission shaft and turn face worm gear synchronous axial system, it is provided with one end in the side of described braked wheel outer rim and turns face brake cylinder and be connected, the other end can abut stop bolt on the brake wheel.This device is by arranging braked wheel on power transmission shaft, and the rotation of braked wheel is stoped by stop bolt, and then realize power transmission shaft stop, although improve the corner positioning precision of power transmission shaft, but its indexing accuracy depending on worm gear and worm screw, therefore cause worm gear and worm screw difficulty of processing is big, cost is high, and due to the existence back clearance of worm gear and worm screw, therefore positioning precision is low, and its rotating speed is slow simultaneously, inefficiency.
Summary of the invention
It is big that the present invention mainly provides a kind of locking torque, positioning precision is high, low cost of manufacture, can accurate lock polyhedron to be processed blank turn position, face band feedback detection function polyhedron precise machining equipment, solve plane workpiece grinding positioning precision present in prior art low, manufacturing cost is high, it is impossible to meet the technical problem of the polyhedral processing request of high accuracy etc..
nullThe above-mentioned technical problem of the present invention is mainly addressed by following technical proposals: the polyhedron precise machining equipment of a kind of band feedback detection function，The grinding disc including processing platform and being located on processing platform and grinding head device，Grinding head device is provided with Zhuan Mian mechanism and the rotation angle mechanism of Zhuan Mian mechanism pitch angle can be changed，And the corner locking mechanism of lockable rotation angle mechanism，Zhuan Mian mechanism include casing and be rotatably connected on casing in some tubulose dividing spindles in same level，The front end of dividing spindle extends to the top of grinding disc through the front face of casing，Bar is fixed by the clamping device workpiece equipped with polyhedron blank that is fixedly clamped in the front end of dividing spindle，The index dial of band indexing tooth it is arranged with on dividing spindle corresponding in casing，It is provided with on casing corresponding above index dial and interworking can be plugged on the taper pin of adjacent indexing between cog of correspondence.By arranging many dividing spindles in casing, synchronous processing can be carried out by fixing polyhedron on every dividing spindle, improve production efficiency, reduce processing cost；Owing to dividing spindle is located in the same horizontal plane, dividing spindle can synchronize corner under the driving of rotation angle mechanism, and can be driven by a motor and carry out synchronization by synchronizing wheel and turn face, and one-time positioning can carry out the synchronous processing of multiple workpiece, time saving and energy saving；By the index dial with indexing tooth sheathed on dividing spindle, and arrange on corresponding casing above index dial can index dial radially slides relatively taper pin, during conversion Polyhedron processing face, dividing spindle rotates and drives index dial synchronous axial system, after machined surface converts, taper pin slides towards index dial and is plugged between two indexing teeth of correspondence, due to taper pin and the gap interworking of two indexing between cog, thus lock the position of index dial, dividing spindle and the position in Polyhedron processing face are i.e. locked, it is big that its most original worm and gear locks not only locking torque, and simple in construction, low cost of manufacture, eliminate the back clearance between gear simultaneously, can be locked in accurately by plane workpiece to be processed turns on position, face, positioning precision is high, meet the polyhedral processing of high accuracy turns face positioning requirements.
As preferably, dividing spindle overcoat corresponding in described casing is covered with indexing case, on the dividing spindle that index dial is corresponding in being fixed on indexing case, indexing case is provided with locking cylinder, taper pin is coaxially connected on the connecting rod of locking cylinder, mandrel on corner locking mechanism is fixed on indexing case one side wall surface through casing, and the drive shaft on rotation angle mechanism is coaxially fixed on indexing case opposite side wall through casing.By indexing case sheathed on dividing spindle, facilitate dividing spindle and corner locking mechanism and the connection of rotation angle mechanism.
As it is further preferred that be set up in parallel two dividing spindles in described indexing case, dividing spindle extends to outside indexing case, is arranged with synchronization wheel on the outer corresponding dividing spindle of indexing case, and two synchronization wheels are connected to turn face by Timing Belt and drive on motor.Fix two polyhedrons by two dividing spindles and carry out synchronous processing, in grinding disc appropriate size range, realize production efficiency maximize, save processing cost；Synchronized wheel by a driven by motor two to rotate, simplify structure, reduce and manufacture and operating cost.
As more preferably, it is externally provided with location-plate at the described indexing case synchronizing wheel side corresponding, synchronizing wheel to be located between location-plate and indexing case, be provided with cylinder of forging a knife on location-plate, the connecting rod on cylinder of forging a knife coaxially extends in dividing spindle and is connected on the positioning tie bar on clamping device.Cylinder of forging a knife is arranged on indexing case, make forge a knife cylinder and indexing case, dividing spindle synchronous axial system, therefore change when bar (replacing polyhedron) fixed by the workpiece on dividing spindle without dividing spindle is gone to original state, i.e. dividing spindle fixes bar at the most replaceable workpiece in any position, convenient use, improves working (machining) efficiency.
As preferably, described index dial is in disk form, and indexing tooth is the straight-tooth being distributed on index dial circle outer ring surface, and the gap corresponding to adjacent indexing between cog is fan-shaped.Straight-tooth indexing tooth, it is simple to itself and the precision-fit of taper pin, improves positioning precision；By at some indexing teeth uniform on index dial circle outer ring surface, difference can be met and turns the positioning requirements of face angle.
Piston can also use cylinder, screw mandrel etc. to drive compression, as preferably, described corner locking mechanism includes the mandrel being vertically interspersed on case-side wall, the mandrel corresponding with casing is fixed with wear-resistant sleeve by conical expansion mechanism is sheathed, radiation fins it is arranged with on wear-resistant sleeve, the outboard end of radiation fins extends to outside wear-resistant sleeve, and on the mandrel that radiation fins outboard end is corresponding, slidably connecting piston, piston makes casing swelling be fixed on wear-resistant sleeve after being hydraulically operated system drive and promoting radiation fins inward compression.Mandrel is interspersed on wall box, radiation fins is set between casing and mandrel, and piston is set at the outboard end of radiation fins, when casing need to be locked on mandrel, it is hydraulically operated system drive piston, piston promotes radiation fins inside, after the thin-walled lateral bend deformation of radiation fins, internal diameter size diminishes, outside dimension becomes big, radiation fins swelling is made to be fixed between casing and mandrel, locking torque is big, positioning precision is high, hydraulic pressure is eliminated during unblock, move after driving piston when radiation fins its own resilient is more than hydraulic pressure, radiation fins restores to the original state simultaneously, simple in construction, easy to operate；By the outer sheathed wear-resistant sleeve of mandrel corresponding inside radiation fins, make radiation fins swelling be fixed on wear-resistant sleeve, thus the friction between radiation fins and mandrel can be avoided, reduce mandrel wear, only need to regularly replace wear-resistant sleeve and can meet the positioning requirements of mandrel, save maintenance cost, and change conveniently；Fluid power system has transmission efficiency height, can carry out constant power output control, and power utilization is abundant, and system structure is simple, and output speed stepless speed regulation can forward and reverse operate, and Speed rigidity is big, and action realizes the advantages such as easy.
As more preferably, described conical expansion mechanism includes the external-open choma that interworking ring set inner opening ring on mandrel and interworking are inlaid in wear-resistant sleeve mesopore, it is provided with male-tapered face in inner opening ring one end relative with external-open choma, external-open choma one end relative with male-tapered face is provided with the inner conical face of interworking, and inner opening ring is connected with external-open choma by axial tension bolt.Conical expansion mechanism is a kind of keyless joint device; it is that the stress bolt by high intensity acts axially between inside and outside split ring; thus between inner opening ring and mandrel, between external-open choma and wear-resistant sleeve, produce huge enclasping force; to realize the keyless joint of wear-resistant sleeve and mandrel, having simple in construction, accuracy of alignment is high; installation, adjustment, convenient disassembly; intensity is high, and connective stability is reliable, and can protect the advantages such as the most impaired base of connected components when overload.
As it is further preferred that the casing corresponding with described mandrel is externally provided with adapter flange and the cylinder body being docked on adapter flange, mandrel extends in casing after cylinder body and adapter flange, and the medial extremity apical grafting of radiation fins and wear-resistant sleeve is on adapter flange outer face.By for intert fixed central spindle casing axis hole on outwards dock adapter flange, and on adapter flange, dock cylinder body, one is easy for connecting and assembling, and two are to increase the contact area of mandrel and casing, raising positioning precision.
As preferably, described rotation angle mechanism includes the drive shaft being vertically interspersed on case-side wall, and the outboard end of drive shaft is connected on servomotor by reduction box.Being driven body pivot by driven by servomotor drive shaft, fast relative to the velocity of rotation of original Worm Wheel System, work efficiency is high.
As it is further preferred that be provided with at the outer end coaxial sleeve of described mandrel and can automatically identify the casing encoder relative to mandrel latched position, encoder is connected on servomotor by control system.By arranging the encoder (or circular grating) being connected with servomotor at the axle head of mandrel, during use, servomotor band moving mandrel and body pivot are to realize polyhedral corner requirement, the position of casing (the polyhedron blank in processing) can be detected at any time by encoder, and by detection information Real-time Feedback to control system, and control servomotor rotation with the position readjusting casing by control system, improve polyhedral angle position precision, and then meet the polyhedral processing request of high accuracy.
Therefore, the polyhedron precise machining equipment of a kind of band feedback detection function of the present invention has an advantage that
1, the taper pin by index dial and with index dial interworking locks the crank degree (polyhedron blank turns angle, face) of dividing spindle, and locking torque is big, and positioning precision is high, low cost of manufacture；
2, grip polyhedron blank respectively and be processed simultaneously by arranging multiple dividing spindle, improve production efficiency, reduce production cost；
3, corner locking mechanism is set by radiation fins and conical expansion mechanism, improves corner positioning precision, improve polyhedron flour milling crudy；
4, dividing spindle fixes bar, convenient use at the most replaceable workpiece in any position, improves working (machining) efficiency；
5, the position of polyhedron blank can be detected at any time by encoder, and by detection information Real-time Feedback to control system, control system controls servomotor to readjust casing angle position to realize closed loop control, improve polyhedral angle position precision, and then meet the polyhedral processing request of high accuracy.