CN202438699U

CN202438699U - Eccentric type inner groove hole boring cutter

Info

Publication number: CN202438699U
Application number: CN2012200645370U
Authority: CN
Inventors: 吴华
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-26
Filing date: 2012-02-26
Publication date: 2012-09-19
Anticipated expiration: 2022-02-26

Abstract

The utility model relates to an eccentric type inner groove hole boring cutter. The eccentric type inner groove hole boring cutter comprises a movable cutter handle, a cutter head and an eccentric sleeve which is integrated with the cutter handle into a whole, wherein the back end part of the movable cutter handle is sheathed in the eccentric sleeve, a gap between the movable cutter handle and the eccentric sleeve constitutes an inner chamber, and an elastic mechanism which can control the movable cutter handle to perform axial motion is arranged in the inner chamber; a right spiral groove is formed between the thickest part to the thinnest part on the sleeve wall of the eccentric sleeve along the semi-circumference of the sleeve wall of the eccentric sleeve, an assembly groove is arranged on the movable cutter handle, and a bolt penetrates through the right spiral groove and is in tight fit with the assembly groove; and the cutter head for forming an inner groove is fixed at the front end of the movable cutter handle. The eccentric type inner groove hole boring cutter disclosed by the utility model has the advantages of simple structure, low manufacturing cost, good compatibility and simplicity in assembly; by utilizing the built-in elastic mechanism, the cutter head can timely leave a workpiece during the cutter withdrawal process, so that the cutter head can be prevented from being damaged; and the eccentric distance can be precisely and conveniently regulated through scale marks and a position-limiting buckle.

Description

A kind of centering type internal channel hole boring cutter

Technical field

The present invention relates to a kind of centering type internal channel hole boring cutter.

Background technology

Prior art is generally used on the Digit Control Machine Tool and is slotted in workpiece hole, opening internal channel, the operation more complicated, and the fluting cost is very high; But, be difficult in the aerial interior open channels of workpiece again for traditional tools; So for this area is a technical barrier.

Summary of the invention

The technical problem that the utility model will solve provides a kind of ability simple structure, is suitable in workpiece, opening the centering type internal channel hole boring cutter of internal channel.

For solving the problems of the technologies described above, the centering type internal channel hole boring cutter that the utility model provides comprises: movable handle of a knife, cutter head and with the eccentric bushing of handle of a knife one; The rearward end of said movable handle of a knife is sheathed in the said eccentric bushing, and the gap of movable handle of a knife and eccentric bushing constitutes inner room, is provided with in the said inner room and can controls the elastic mechanism that said movable handle of a knife axially moves; Offer one right-hand screw groove at thickness to the thinnest part of the jacket wall of said eccentric bushing and along the jacket wall half cycle of said eccentric bushing, said movable handle of a knife is provided with fitting recess, a latch pass said right-hand screw groove and with said fitting recess tight fit; The said cutter head that is used to out internal channel is fixed in the front end of said movable handle of a knife.

Further; In order to control offset; Notch along said right-hand screw groove; Be provided with and the corresponding scale of the eccentric distance of said movable handle of a knife along a side of said right-hand screw groove, and in said right-hand screw groove, be provided with one and be used to regulate the spacing fixture block of said movable handle of a knife eccentric distance, and can regulate eccentric distance through changing said spacing fixture block.

The utlity model has following advantage: the centering type internal channel hole boring cutter of (1) the utility model, it is simple in structure, low cost of manufacture; (2) can on machine tool, use, compatible good, assembling is simple; (3) utilize built-in elastic mechanism, can in the withdrawing process, make cutter head leave workpiece timely, avoid the cutter head infringement; (4) can regulate eccentric distance accurately, easily through scale and spacing fixture block.

Description of drawings

For the content that makes utility model is more clearly understood, below basis specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation, wherein

Fig. 1 is the whole mechanism front view of said centering type internal channel hole boring cutter;

Fig. 2 is the A-A cutaway view of said centering type internal channel hole boring cutter.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:

Like Fig. 1, a kind of centering type internal channel hole boring cutter comprises: movable handle of a knife 1, cutter head 2 and with the eccentric bushing 3 of handle of a knife 3-1 one; The rearward end of said movable handle of a knife 1 is sheathed in the said eccentric bushing 3, and movable handle of a knife 1 constitutes inner room 4 with the gap of eccentric bushing 3, is provided with in the said inner room 4 and can controls the elastic mechanism 5 that said movable handle of a knife 1 axially moves; Offer one right-hand screw groove 7 at thickness to the thinnest part of the jacket wall of said eccentric bushing 3 and along the jacket wall half cycle of said eccentric bushing 3, said movable handle of a knife 1 is provided with fitting recess 1-1, a latch 6 pass said right-hand screw groove 7 and with said fitting recess 1-1 tight fit; The said cutter head 2 that is used to out internal channel is fixed in the front end of said movable handle of a knife 1.

Said elastic mechanism 5 can comprise elastic-like devices such as spring, stage clip.

When work, said centering type internal channel hole boring cutter extends in the workpiece hole, and the top of its cutter head contacts and produce upward pressure with at the bottom of the said hole; Said movable handle of a knife 1 is upwards moved axially; Be that said straight pin 6 moves in said right-hand screw groove 7, again because this cutter adopts is eccentric bushing 3, so said movable handle of a knife 1 produces an offset; Said cutter head 2 Rotate 180s °; And fully contact with workpiece, lathe drives said centering type internal channel hole boring cutter rotary work, and promptly said cutter head 2 is opened internal channel in said workpiece hole.

Side along said right-hand screw groove 7 is provided with and the corresponding scale of the eccentric distance of said movable handle of a knife 1; And in said right-hand screw groove 7, be provided with one be used to regulate said movable handle of a knife eccentric distance spacing fixture block; And can regulate eccentric distance through changing said spacing fixture block, reach the purpose of accurate limiting.

Obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not to be qualification to the embodiment of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation that these spirit that belong to the utility model are extended out or change still are among the protection domain of the utility model.

Claims

1. centering type internal channel hole boring cutter is characterized in that comprising: movable handle of a knife (1), cutter head (2) and with the eccentric bushing (3) of handle of a knife (3-1) one; The rearward end of said movable handle of a knife (1) is sheathed in the said eccentric bushing (3); Movable handle of a knife (1) constitutes inner room (4) with the gap of eccentric bushing (3), is provided with in the said inner room (4) and can controls the elastic mechanism (5) that said movable handle of a knife (1) axially moves; Offer one right-hand screw groove (7) at thickness to the thinnest part of the jacket wall of said eccentric bushing (3) and along the jacket wall half cycle of said eccentric bushing (3); Said movable handle of a knife (1) is provided with fitting recess (1-1), a latch (6) pass said right-hand screw groove (7) and with said fitting recess (1-1) tight fit; The said cutter head (2) that is used to out internal channel is fixed in the front end of said movable handle of a knife (1).

2. centering type internal channel hole boring cutter according to claim 1; It is characterized in that: the side along said right-hand screw groove (7) is provided with the corresponding scale of eccentric distance with said movable handle of a knife (1), and in said right-hand screw groove (7), be provided with one be used to regulate said movable handle of a knife eccentric distance spacing fixture block.