CN2068887U

CN2068887U - Fixture for sharpening

Info

Publication number: CN2068887U
Application number: CN 89213219
Authority: CN
Inventors: 杨留昌
Original assignee: CHENGDU AEROPLANE INDUSTRY Co
Current assignee: CHENGDU AEROPLANE INDUSTRY Co
Priority date: 1989-09-28
Filing date: 1989-09-28
Publication date: 1991-01-09

Abstract

The utility model relates to a fixture for sharpening, belonging to the field of machine tool grinding fixtures. The fixture is characterized in that a precision graduation grid is used for direct graduation, the graduation grid composed of 12 fluted discs and a hand-pulling locating rod to realize the equal positioning of 2, 3, 4, 6, 12 tooth parts, and if the cutter of other toothed plates need processing, a graduation grid with corresponding number of tooth can be replicated. The fixture is especially designed with a tailor-made regulating nut and a screw to ensure the axial clearance of the graduation grid, a shell and a main shaft moderate, so that the graduation grid can revolve freely and the axial float of processing parts is overcome. With the advantages of compact structure, flexible use and favorable graduation property, the fixture expands the size range of part manufacture, lowers the labour intensity of workers, enhances work efficiency four times, and extends the service life of cutter.

Description

Fixture for sharpening

A kind of Fixture for sharpening belongs to lathe worker die clamper field, and the utility model is the technological transformation to the omnipotent bistrique of cutter sharpener.

Sharpening to the rod cutter end tooth all is manually to carry out by the omnipotent bistrique clamping cooperation of cutter mould bed for a long time, because the bistrique volume is big, heavy, dismounting is inconvenient, except the cutter of necessary motor-driven rotation processing, by manually-operated, the grinding by rule of thumb of hand-held handle of a knife can't guarantee the five equilibrium of tool orthogonal rake, cutting edge inclination and jerk value at all, brings very big difficulty for its back relief grinding R operation, have a strong impact on grinding quality, reduce cutter life; Bistrique is stood above on the workbench in addition, emery wheel is restricted to processed coverage between the part in addition, thereby also makes the length of processed cutter extremely limited.

The purpose of this utility model be to avoid above-mentioned weak point of the prior art and provide that a kind of five equilibrium is good, the special fixture of the sharpening rod cutter end tooth anterior angle of compact conformation, convenient and flexible operation.

The purpose of this utility model can reach by following measure: the installation of anchor clamps is finished by the tommyhead bolt 25 at the trip bolt 29 of stand 27, locating piece 30, stand one side, middle part, nut 26 etc.; Opposite side at stand 27 has and the movable chovr body 4 that connects of stand, there is corresponding scale 34 to be used for adjusting the indication established angle on stand and the chovr body, the other end of

chovr body

4 and 10 movable connections of anchor clamps housing, corresponding scale 33 is also arranged in order to adjust the indication end rake angle on chovr body and the housing, the housing 10 inner chambers rotary main shaft 12 of packing into, main shaft 12 upper ends are adorned an opening nut 16 and are used for propping up index plate 13 and regulating ring 15, one side at housing 10 middle parts is equipped with a screw 11, with screw 11 main shaft is tightened up when changing index plate; These anchor clamps be characterised in that main shaft 12 upper end open nuts 16 below an index plate 13 is housed, fluted disc of its outer appearance, have five equilibrium wedge shape teeth groove on the outer garden, stationary positioned bridge 17 on the corresponding position of housing 10 outsides and index plate 13, the head of hand pulling type backstay 18 is wedge shape, just in time can inject, withdraw from the wedge shape teeth groove of index plate, locate with branches such as realizations; The adjustable nut 8 of a band screw 7 is adorned in main shaft 12 lower ends, offsets by packing ring 9 and housing 10 lower edges, in order to connect main shaft and to regulate the end play of main shaft 12 with housing 10, realizes the calibration revolution freely.

The purpose of this utility model can also reach by following measure: main shaft 12 lower end loading nuts 8, open the groove of a wide 2MM at nut 8 one end distance end face 3MM places, stay 1/4th not mill on nut 8 cross sections, has elasticity through heat treatment, and on corresponding end face, open screw hole, the screw 7 of packing into is used for the end play of adjustment housings 10, main shaft 12, this adjusting nut 8 promptly plays anastomosis and works the end play effect of regulating again, and it has replaced the connecting piece of many burden again simultaneously.

The main casting stand 27 of these anchor clamps, housing 10, chovr body 4 adopts spheroidal graphite cast-iron, can reach compact conformation under the good condition of intensity, rigidity, dwindle grip size, reduce the purpose of weight.

The accompanying drawing drawing is described as follows:

Fig. 1---front view,

Fig. 2---vertical view,

Fig. 3---right view, Fig. 4-Fig. 3 F be to scale label 33,

Fig. 5---Fig. 3 E is to scale label 34,

Fig. 6---nut 8 views

In the accompanying drawing: 1 screw, 3 screws, 4 chovr bodies, 5 screws, 6 screws, 7 screws, 8 adjusting nuts, 9 packing rings, 10 housings, 11 screws, 12 main shafts, 13 index plates, 14 driving levers, 15 regulating rings, 16 nuts, 17 location bridges, 18 backstays, 19 garden taper pins, 20 springs, 21 garden taper pins, 22 screws, 23 garden taper pins, 24 handles, 25T shape bolt, 26 nuts, 27 stands, 28 squares, 29 screws, 30 locating pieces, 31 screws, 32 rivets, 33 groove labels, 34 groove labels.

The utility model is described in further detail below in conjunction with drawings and Examples: branch Fixture for sharpening such as DR660-15 slotting cutter end tooth anterior angle are embodiment of the present utility model, stand 27 is realized the location by the screw 29 and the locating piece 30 of an end, by tommyhead bolt 25 and nut 26 in the middle part of the stand anchor clamps stand is fixed on the workbench.The stand other end has the movable chovr body 4 that connects, the other end of

chovr body

4 and 10 movable connections of housing, chovr body 4 has corresponding scale label 34 with stand 27 junction, is used for regulating the indication established angle, chovr body 4 has scale label 33 with housing 10 junction, is used for regulating the indication end rake angle.The housing 10 inner chambers rotary main shaft 12 of packing into, an opening nut 16 is adorned in main shaft 12 upper ends, be used for propping up the index plate 13 and the regulating ring 15 that are contained on the main shaft convex shoulder, thick fluted disc of index plate 13 outer appearances, outer garden has five equilibrium wedge shape teeth groove, housing 10 is outer surveys stationary positioned bridge 17 on the position corresponding with index plate 13, hand pulling type backstay 18 heads are wedge shape, can inject, withdraw from the wedge shape teeth groove in the outer garden of index plate, locate in order to branches such as realizations, the outer garden of index plate can also can make the index plate of other number of teeth as required by 12 tooth five equilibriums.There is convex shoulder main shaft 12 upper ends, at main shaft 12 lower end loading nuts 8, offset by packing ring 9 and housing 10 lower edges, be used for linking the end play of main shaft 12 and adjusting main shaft and housing 10, adjusting nut 8 can make the end play appropriateness of main shaft, rotates freely, simultaneously can avoid other part axial float, by the screw on the nut 87, the part of the clamp nut flexible effect in 8 terminations reaches the effect of locking nut 8.The use of nut 8, screw 7 has replaced the connector of many burden.The main casting stand 27 of these anchor clamps, housing 10, adaptor 4 adopt spheroidal graphite cast-iron, make this clamp structure compactness, dwindled size, have reduced weight.

These anchor clamps have also adopted a micro-adjusting mechanism, it is mounted in two micrometer adjusting screws 5 and baffle plate 14 on index plate 13 1 lateral edges, regulate when micrometer adjusting screw 5 can make tool sharpening and needn't can in 20 degree scopes, rotate with the main body renunciation, make it change relative position with the emery wheel cutting face, reach that anterior angle mixes up the thick-and-thin purpose in back in process.Also be processed with a spiral grooves on these anchor clamps main axis rotation body, the dust that can hold oil and fall into once in a while makes rotary body 4 and housing 10 be in the best fit state.The screw thread of important bond sites grinds meticulously through screw grinder about main shaft, links reliably, and rotation flexibly.

Compared with prior art the utlity model has following advantage:

1. adopt the direct calibration of precision indexing plate, accurately, directly perceived, reliable, improved the branches such as end tooth anterior angle, for the precision of back relief grinding operation provides assurance, guaranteed the tool sharpening quality, prolonged cutter life.

2. these anchor clamps have replaced workman's manual operations, have reduced labour intensity, have guaranteed machining accuracy, have reduced the requirement to workman's industrial grade.

3. this clamp structure compactness, light and flexible, bistrique No. 1～No. 4 taper-shank cutters of can only processing Mohs before transforming, existing anchor clamps can be processed Mohs No. 1～No. 5 taper-shank cutters. This clamp weight only is original 1/3, and work efficiency improves 4 times.

Claims

1, a kind of Fixture for sharpening is made up of stand 27, chovr body 4, housing 10, dividing and positioning mechanism 13,17,18 etc.; It is characterized in that main shaft 12 upper end open nuts 16 below an index plate 13 is housed, stationary positioned bridge 17 on the corresponding position of housing 10 outsides and index plate 13, the head of hand pulling type backstay 18 is wedge shape, can inject, withdraw from branch wedge shape teeth groove such as index plate 13 outer gardens, branches such as realization location; The nut 8 of a band screw 7 is adorned in main shaft 12 lower ends, offsets by packing ring 9 and housing 10 lower edges.

2, according to the described Fixture for sharpening of claim 1, it is characterized in that, open one at nut 8 one end distance end face 3MM places and widely be the groove of 2MM, on the cross section of nut 8, stay 1/4th not mill, have elasticity after the heat treatment, and on corresponding end face, open screw 7 holes.

3,, it is characterized in that stand 27, housing 10, chovr body 4 adopt spheroidal graphite cast-iron according to the described Fixture for sharpening of claim 1.