CN207026566U - Tenon process tool - Google Patents

Abstract

Machining technology field is the utility model is related to, specifically provides a kind of tenon process tool, including knife bar and two cutter heads, cutter head are arranged on the end face of knife bar side, axis of two cutter heads along knife bar centrosymmetric structure each other；Cutter head has knife face and minor flank after rake face, master, rake face and it is main after intersection between knife face be main cutting edge, intersection between rake face and minor flank is front cutting edge, the wherein cutting edge inclination γ of cutter head is 3 °~6 °, anterior angle α is 0 °, and rear angle beta is 2 °~6 °, and nose angle ε is 40 45 °, tool cutting edge angle Kr is 3 °~6 °, on the one hand the cutter avoids mending to form the complexity of dimensional tolerance using adjusting knife；On the other hand, the crudy of stable cavity tenon, so as to obtain the stable electrical performance indexes of radar antenna product, the technology content of product is improved, to reach considerable economic and social benefit.

Description

Tenon process tool

Technical field

It the utility model is related to machining technology field, more particularly to tenon process tool.

Background technology

Band tenon, mortise soldering part are one of strength members in Anneta module component, and its crudy not only influences to weld The electrical performance indexes that effect also directly affects radar antenna are connect, therefore ensures the machining accuracy of cavity tenon and stablizes tenon processing Quality turns into a key.

Part material LF21 materials are very soft, and machining property is poor, during Milling Process, because its material has good modeling Property, the section of milling is banding, and cut-out is difficult, and cutting is easy to " glue " knife and form built-up edge, easily causes accessory size to surpass Difference, scrap or tool damage.According to the design feature of part, this kind of cavity tenon is a diameter ofHighly 1 ± 0.05.It is right In this kind of cavity tenon, by tenon dimension analysis, its intensity is relatively poor, and cutter is easily bad tenon milling during processing.So processing This kind of cavity tenon requires higher to cutter, and difficulty of processing is big.

Utility model content

To overcome at least one defect existing for above-mentioned prior art, the utility model provides a kind of tenon processing knife Tool, including knife bar and two cutter heads, cutter head be arranged on the end face of knife bar side, axis of two cutter heads along knife bar each other in Heart symmetrical structure；

Cutter head have rake face, it is main after knife face and minor flank, rake face and it is main after intersection between knife face be main cutting Sword, the intersection between rake face and minor flank are front cutting edge, and the wherein cutting edge inclination γ of cutter head is 3 °~6 °, and anterior angle α is 0 °, Angle beta is 2 °~6 ° afterwards, and nose angle ε is 40-45 °, and tool cutting edge angle Kr is 3 °~6 °.

Preferably, nose angle ε is 45 °.

Preferably, the length L2=3mm of cutter head.

Preferably, the length L1=40mm, a diameter of 6mm of knife bar.

Tenon process tool provided by the utility model, realize the direct of " antenna chamber tenon " big to difficulty of processing Processing and forming, through practical proof after a while, technical requirements, and part tenon is fully achieved in the dimensional accuracy of part tenon Head process is stable, reliable, efficient, tenon crudy is also very stable, reaches requirement.

Brief description of the drawings

Fig. 1 is the axonometric drawing of tenon process tool；

Fig. 2 is the schematic elevation view of tenon process tool；

Fig. 3 is the schematic top plan view of tenon process tool；

Fig. 4 is the schematic side view of tenon process tool.

Reference：Knife bar 1, cutter head 2, rake face 21, knife face 22 after leading, minor flank 23, main cutting edge 24, pair cutting Sword 25.

Embodiment

To make the purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model Accompanying drawing in embodiment, the technical scheme in the embodiment of the utility model is further described in more detail.

It should be noted that：The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining this reality With new, and it is not intended that to limitation of the present utility model.In the accompanying drawings, same or similar label represents phase from beginning to end Same or similar element or the element with same or like function.Described embodiment is that the utility model part is implemented Example, rather than whole embodiments, in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes The orientation or position relationship shown, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply and be signified Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality The limitation of novel protected scope.

The utility model provides a kind of tenon process tool, by cavity tenon diameter, highly 1 ± 0.05 determine Cutter inner edge diameter and effective depth are determined.Consider cutter rigidity and structural factor, be cutter master from whole hard alloy φ 6 Body material, double cutting edge formula structure is designed, as shown in figure 1, the cutter includes knife bar 1 and two cutter heads 2, cutter head 2 are arranged at On the end face of the side of knife bar 1, axis of two cutter heads 2 along knife bar 1 centrosymmetric structure each other；Cutter head 2 has rake face 21, master Intersection after knife face 22 and minor flank 23 afterwards, rake face 21 and master between knife face 22 is main cutting edge 24, rake face 21 and pair The intersection between knife face 23 is front cutting edge 25 afterwards,

As shown in Figures 2 to 4, the wherein cutting edge inclination γ of cutter head 2 is 3 °~6 °, and anterior angle α is 0 °, and rear angle beta is 2 °~6 °, knife Wedge angle ε is 40-45 °, and tool cutting edge angle Kr is 3 °~6 °, and, nose angle ε is 45 °, the length L2 of cutter head 2 in the present embodiment preferably =3mm, the length L1=40mm, a diameter of 6mm, L3 of knife bar 1 are the length of front cutting edge 25, and L4 is the length of main cutting edge 24 Degree, L5 positions double blade diameter, that is, the diameter of the tenon processed.

Using NC machining center as process equipment, high-precision lathe is selected, advantageously ensures that part Machining accuracy, simultaneously as high-precision machine tool chief axis end face run-out precision, each axle positioning precision are all higher, make part Process it is more steady, reduce the probability that fractures of cutter, in specific machining Practice, selected HAAS VF-4 machines Bed, this machine tool chief axis circle end face run-out is 0.006mm, and Z axis repetitive positioning accuracy is 0.008mm, and X/Y axle repetitive positioning accuracies are 0.007mm.Numerical control programming selects speed of mainshaft S=2000rpm, feed speed amount f=100mm/min, is instructed using G81 drillings Processing mode.Using the lathe and corresponding machined parameters, process is normal, and element precision, surface roughness reach technology It is required that.

Sufficient lubrication, cooling, ordinary circumstance cutting fluid are carried out using the excellent cutting fluid of high-quality greasy property during processing Act as cooling down, lubricate, clean, antirust.According to the characteristic of soft, easy " viscous " knife of the part material LF21 materials of processing, processing During caused heat it is relatively few, so preferentially to be selected when selecting coolant lubricant effect significantly, next to that cleaning action The good coolant of effect, reduce the probability for producing built-up edge.Well real outstanding H889 high-performance is multi-functional in the optional U.S. fully synthetic cuts Cut liquid.Processed by the practice to part, have cutting lubricant effect effect well, requirement can be reached.

Experimental result：Processing arrangement is first opened slightly with the milling cutters of hard alloy φ 6, tenon side made allowance 0.15.Do not stay bottom surface Surplus.Then each tenon is finished using G81 drilling modes with tenon special-purpose milling cutter.Through the single tenon circularity of three coordinate measurements 0.004, cylindricity 0.008, position degree 0.01.Can be with fully mated with simulation cover plate.

It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in Change or replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with described Scope of the claims is defined.

Claims (4)

1. A kind of 1. tenon process tool, it is characterised in that：Including knife bar (1) and two cutter heads (2), cutter head (2) is arranged at knife On the end face of bar (1) side, axis of two cutter heads (2) along knife bar (1) centrosymmetric structure each other；

   Cutter head (2) have rake face (21), it is main after knife face (22) and minor flank (23), rake face (21) and knife face (22) after leading Between intersection be main cutting edge (24), the intersection between rake face (21) and minor flank (23) is front cutting edge (25), its The cutting edge inclination γ of middle cutter head (2) is 3 °~6 °, and anterior angle α is 0 °, and rear angle beta is 2 °~6 °, and nose angle ε is 40-45 °, tool cutting edge angle Kr For 3 °~6 °.
2. 2. tenon process tool according to claim 1, it is characterised in that：Nose angle ε is 45 °.
3. 3. tenon process tool according to claim 1, it is characterised in that：The length L2=3mm of cutter head (2).
4. 4. tenon process tool according to claim 1, it is characterised in that：The length L1=40mm of knife bar (1), it is a diameter of 6mm。