A kind of hinge taper hole chamfering compound tool
Technical field
The utility model relates to a kind of cutter of machining, has the hinge taper hole chamfering compound tool of the chamfering counterbit that finish reams cutter and opposite end surface chamfer that finish reams conical bore especially simultaneously.
Background technology
What the vehicle gas cylinder hickey adopted is special-purpose taper pipe thread, and requirement on machining accuracy is very high.Mach operation is divided into planar end surface, turning, brill bottom outlet, hinge taper hole, chamfering, tapping etc., work flow was long when the dispersion of operation made machining large workpiece (vehicle gas cylinder), and workpiece is difficult to carrying, and process equipment quantity is many, working (machining) efficiency is low, the processing cost height.When transfer matic is produced, adopt the mode difficulty of full automatic numerical control machining center big, and investment is a lot, general factory or company do not have such strength, can not invest numerical control machining center; Present most of vehicle gas cylinder hickey processor generally still adopt operation that disperse with processing mode multiple clamping, production automation degree and working (machining) efficiency are all very low, precision is difficult to guarantee that working (machining) efficiency and processing cost all make product market competitiveness greatly reduce.
The workpiece in machining large heavy revolution class and band closing in hole, as vehicle gas cylinder etc., behind turning face and spot facing, next step manufacturing procedure is hinge conical bore and end face chamfering; During the hinge conical bore, cutting output is big, and cutter tooth work is heavier, and the cutting output of end face chamfer machining is less.If hinge conical bore and end face chamfering are carried out separately, take the processing mode of two process tools, twice clamping, twice processing, its working (machining) efficiency is inevitable very low, and must reduce machining accuracy, reduces product quality.
Summary of the invention
The utility model is at the above-mentioned deficiency of prior art, provides a kind of and has conical bore reamer and counterbit simultaneously, can cut with scissors the hinge taper hole chamfering compound tool of conical bore and end face chamfer machining to workpiece to be processed at same clamping position.
The technical solution of the utility model: a kind of hinge taper hole chamfering compound tool comprises cutter body; It is characterized in that: at the detachable conical bore reamer that is connected with of the front end of cutter body, be provided with counterbit in conical bore reamer back, counterbit is detachable to be connected on the cutter body central lines of conical bore reamer and counterbit.
Further feature is: hold-down screw is installed in counterbit on the cutter body.
Hinge taper hole chamfering compound tool of the present utility model with respect to prior art, has following characteristics:
1, will cut with scissors taper hole and two step of chamfering operation concentrated is a step, compound the concentrated of fine finishining circular cone bottom outlet operation and chamfering process of having realized of circular cone bottom outlet reamer and chamfering counterbit, No. one time clamping just can cut with scissors conical bore and end face chamfer machining to workpiece to be processed, improve machining accuracy and working (machining) efficiency, cut down finished cost, reduce clamping, non-cutting times such as conveying, saved the big acquisition cost of process equipment number.
2, two step of hinge circular cone bottom outlet and chamfering operation compound broken through traditional design precedent that taper hole processing does not have and chamfering is compound.
3, this Tool Design is simple in structure, makes things convenient for the replacing of cutter and refacing of blade.Has certain versatility.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Accompanying drawing is the utility model cutter structure schematic diagram.
The specific embodiment
In Fig. 1,1-cutter body, 2-conical bore reamer, 3-counterbit, 4-hold-down screw, 5---handle of a knife;
Hinge taper hole chamfering compound tool of the present utility model, comprise cutter body 1, front end at cutter body 1 is provided with conical bore reamer 2, conical bore reamer 2 detachable being connected on the cutter body 1, be provided with counterbit 3 in conical bore reamer 2 back, counterbit 3 detachable being connected on the cutter body 1, the central lines of conical bore reamer 2 and counterbit 3.Shown in the figure is with hold-down screw 4 counterbit 3 to be installed on the cutter body 1.The back segment of cutter body 1 is a handle of a knife 5, as the installation connecting portion of cutter, is connected with the corresponding position of machine tool chief axis.Cutter body 1, conical bore reamer 2, counterbit 3 are formed compound tool.Conical bore reamer 2 is to finish ream the conical bore reamer, behind thick hinge conical bore, the conical bore of workpiece to be processed is finish reamed processing, and the finishing hole shape reduces the surface roughness of conical bore, for next step processing is got ready.Counterbit 3 is 90 ° of counterbits, and workpiece to be processed is carried out 45 ° of chamferings.Handle of a knife 5 utilizes frictional force to cooperate with cutting tool sleeve again and is installed on the machine tool chief axis, or directly and machine tool chief axis be connected and installed.
During work, the compound tool taper shank is connected with machine tool chief axis, and bottoming reamer and 45 ° of chamfering counterbits that rotatablely move and the axial feed motion of main shaft drives cutter carry out machining to workpiece.During machining, finish ream cutter and the chamfering counterbit is processed simultaneously, have identical and the feed speed and the speed of mainshaft.And two finish machining simultaneously.