A kind of combination forming cutter
The utility model relates to machining tool, particularly a kind of molding cutter of processing the multiple-grooved forming surface.
The surface axial section presents these parts of shaped form feature forming surface, the processing method of forming face generally has following three kinds: (1) moulding cutter car forming surface, with moulding cutter car forming surface, its machining accuracy mainly guarantees by cutter, but contact-making surface is bigger when noting owing to cutting, resistance to cutting is also big, be prone to vibration and workpiece shift, cutting force wants littler for this reason, and workpiece must clamp, this method production efficiency height, but the cutter sharpening is difficulty, vibrates easily during turning, so only be used for bigger in batches production, the short and better simply forming face of turning good rigidly, length; (2) with pattern car forming surface, this method shapes face, and is simple to operate, productivity ratio is higher, therefore be used for producing by batch, when the groove of pattern is straight trough, with pattern switching certain angle more, promptly can be used for the turning tapering, this method is simple to operate, and productivity ratio is higher, but needs to make special-purpose pattern, so only be used for producing in enormous quantities, turning length is big, the comparatively simple forming face of shape; (3) manual method for making form turning, during the single-piece work forming face, usually adopt both hands control method turning forming face, be that both hands shake small slide plate handle and middle slide plate handle simultaneously, and the action by two hands coordination, track and desired forming face curve that point of a knife is passed by are similar, this operating technology flexibly, conveniently, do not need other aid, but need higher technical merit, be used for single-piece, small serial production more.
When producing more complicated forming surface in enormous quantities, the moulding cuttves that adopt are processed more, and the structure of existing molding cutter mostly is whole edge structure, as shown in Figure 2, in machining, blade 01 is longer with the cutting contact-making surface of part 02, and correspondingly, the cutting force that blade 03 bears is also bigger, the blade quick abrasion, make blade occur the tipping phenomenon easily, cause the size fluctuation of part to exceed error range, as the words that in process, do not have in time to find, typical products in mass production will be scrapped, cause the higher production cost and the wasting of resources, and reduce operating efficiency, consequence is serious.
The utility model content
Problem to be solved in the utility model just provide a kind of simple in structure, make combination forming cutter easy for installation, change the cutting force bearing position of cutter, prolong the service life of cutter, reduce the precious metal waste of making blade, the cost of reduction part processing is also increased work efficiency.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of combination forming cutter, it is characterized in that: have at least two shaping blades unit, be respectively equipped with at least one moulding blade unit on each shaping blades unit, all moulding blade unit combination form the moulding blade of forming surface on the machined part.
Further, described shaping blades unit comprises shaping blades one and shaping blades two, moulding blade unit on the shaping blades one is the odd bin blade, moulding blade unit on the shaping blades two is the even bin blade, be the odd bin of odd number from forming surface tail end number on the described odd bin blade cutting multiple-grooved part, it is the even bin of even number that described even bin blade cuts on the multiple-grooved part from forming surface tail end number.Regard the recess on the part as groove, the part of processing is that groove position on the multiple-grooved part is with the odd even series classification.
Further, described shaping blades one and shaping blades two are fixed on the both sides of axis on the same axial section of part.
Further, the leading section of described shaping blades one also is provided with the fillet blade.
Further, the leading section of described shaping blades two also is provided with chamfered cutting edge.
After adopting technique scheme, the utlity model has following advantage: original whole edge structure is set as combining form, make blade and Cutting Parts contact-making surface become several discontinuous contact-making surfaces by original Continuous Contact face, and cutting force is distributed on several blades, the cutting force that each shaping blades is born diminishes, effectively prolong cutter life, reduce production costs, enhance productivity greatly.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of existing molding cutter.
The specific embodiment
The structural representation of a kind of embodiment of the utility model as shown in Figure 1, a kind of combination forming cutter, have shaping blades 1 and shaping blades 22, shaping blades 1 is provided with on the machined part 3 from the odd bin blade 11 of forming surface tail end number for odd bin, 12, shaping blades 22 is provided with on the machined part 3 from the even bin blade 21 of forming surface tail end number for even bin, 22, all odd bin blades and even bin blade are combined to form the moulding blade of forming surface on the machined part 3, shaping blades 1 and shaping blades 22 are fixed on the both sides of axis on the same axial section of part 3, leading section at shaping blades 1 also is provided with fillet blade 13, also is provided with chamfered cutting edge 23 at the leading section of shaping blades 22.
In the foregoing description, shaping blades is divided into two unit, recess on the part of processing is regarded groove as, be that the odd even of forming surface tail end number on the multiple-grooved part is divided into odd bin and even bin in proper order from part successively, can certainly adopt the additive method classification, because the dispersion setting of blade, cutting force is distributed on several blade unit, the contact-making surface of each shaping blades unit and part is shortened to diminish, the cutting force that bears is also corresponding to diminish, and effectively prolongs cutter life, reduces production costs, enhance productivity greatly, the blade unit on the same in addition shaping blades unit can be provided with or the segmentation setting continuously.Also shaping blades can be divided into three, four or multiple-unit more, the shaping blades unit is separately fixed on the axial section of part, the moulding blade is more disperseed, the cutting force that each shaping blades unit bears is littler, but too much shaping blades unit is set can make cutter structure complicate, when the cutting tool setting, become trouble, also can reduce cutting precision, therefore will choose the moulding knife number according to the forming surface length scale appropriateness of part.
Except that above preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make various changes and distortion according to the present invention, only otherwise break away from spirit of the present invention, all should belong to the defined scope of claims of the present invention.