CN204997088U - Fine setting center goes out eccentric boring cutter of water - Google Patents

Abstract

The utility model belongs to the technical field of machining and specifically relates to an improve, fine setting center goes out eccentric boring cutter of water promptly of the boring cutter head is related to. A fine setting center goes out eccentric boring cutter of water, boring head body and blade bearing still include the eccentric block, boring head body center is equipped with the through -hole, and the eccentric block is installed in the through -hole of boring head body, and the aperture ratio eccentric block of boring head body is slightly big, and eccentric block and boring head body pass through fine -tuning and couple with holding screw and be in the same place, the one side at the eccentric block is installed to the blade bearing. The utility model discloses little boss is touch to the cutter arbor in effectively having avoided the course of working to can add the hole and the outer face of cylinder of a little boss, the design in hole simultaneously can be in the course of working the inside passageway of coolant liquid accessible cutter directly arrives and cuts the position, the simultaneous design balancing piece avoided shaking too big, and can finely tune and feed, made things convenient for the operation greatly, the design that the screw is filled in has made things convenient for the processing in hole, has also prevented the outflow of coolant liquid.

Description

The eccentric boring cutter of a kind of micro-adjusting center water outlet

Technical field

The utility model relates to field of machining, especially relates to the improvement of cutter head.

Background technology

Boring cutter is the one of cutting tool for boring, the most frequently used occasion be exactly in hole machined, reaming, profiling etc.There is one or two cutting tip, be specifically designed to and roughing, semifinishing or accurately machined cutter are carried out to existing hole.On boring machine, during deep hole machining, there is little small boss the centre in hole, in order to prevent boring bar head from encountering workpiece boss, need design a kind of boring cutter that can be used for this kind of situation.Moreover the imbalance of the High Rotation Speed of boring head, centrifugal force and boring head itself all may cause larger vibration, thus damage cutter and workpiece, therefore need design balance block.Conveniently operate, a kind of fine-tuning feeding mechanism need be designed.

Summary of the invention

For overcoming the above problems, the utility model provides a kind of micro-adjusting center water outlet eccentric boring cutter, it effectively prevent knife bar in process and encounters small boss, simultaneously can cooling fluid directly arrive by the passage of cutter interior and cut position in process, devise balance weight simultaneously, and can feeding be finely tuned.

The eccentric boring cutter of a kind of micro-adjusting center water outlet, boring head body and blade bearing, also comprise eccentric block; Boring head body central is provided with through hole, and eccentric block is installed in the through hole of boring head body, and the aperture of boring head body is more bigger than eccentric block, and eccentric block and boring head body are linked together by micro-adjusting mechanism and holding screw; Blade bearing is arranged on the side of eccentric block.

Further, micro-adjusting mechanism external cylindrical surface has scale, its scale value f is

$f=\sqrt{{(a+r)}^2+{\left(2sin\frac{\mathrm{\θ}}{2}r\right)}^2-2(a+r)\left(2sin\frac{\mathrm{\θ}}{2}r\right)cos\frac{180-\mathrm{\θ}}{2}}-(r-a)$

A is the eccentric throws of boring head body and eccentric block two circles when being assembled together;

R is the radius of boring head body and eccentric block eccentric block when being assembled together;

θ is the anglec of rotation of eccentric block, the angle that initial angle is f when being 0.

Further, described eccentric block center is provided with the deep hole being communicated with lathe apopore and blade bearing, makes the cooling fluid of lathe directly can arrive blade.

Further, described blade bearing is connected by centre bore bolt.

Further, described eccentric block opposite side is provided with balancing weight.

Further, the adjustable established angle of blade bearing 180 degree.

Further, described eccentric block bottom is provided with thread plug.

Further, described handle of a knife is ST40 handle of a knife.

The beneficial effects of the utility model are: the utility model devises eccentric block, eccentric block and blade bearing is utilized to regulate established angle, effectively prevent knife bar in process and encounter small boss, and endoporus and the external cylindrical surface of a small boss can be added, design with hole when can cooling fluid directly to arrive by the passage of cutter interior and cuts position in process, devise simultaneously balance weight avoid vibrations excessive, and can feeding be finely tuned, greatly facilitate operation, the design of thread plug facilitates the processing in hole, also prevent the outflow of cooling fluid.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the schematic diagram of the utility model processing endoporus.

Fig. 3 is the schematic diagram of the utility model processing excircles.

Fig. 4 is the schematic diagram that the utility model micro-adjusting mechanism scale calculates.

Fig. 5 is the results contrast schematic diagram that eccentric block after the utility model parameter in implementation process is determined revolves turnback.

1 blind rivet, 2 handle of a knifes, 3 boring head bodies, 4 micro-adjusting mechanisms, 5 centre bore bolts, 6 eccentric blocks, 7 blade bearings, 8 balancing weights, 9 thread plugs, 10 holding screws.

Detailed description of the invention

By reference to the accompanying drawings 1, the eccentric boring cutter of a kind of micro-adjusting center water outlet, comprises blind rivet 1, ST40 handle of a knife 2 and the boring head body 3 installed successively, also comprises blade bearing 7 and eccentric block 6; Boring head body 3 center is provided with through hole, and eccentric block 6 is installed in the through hole of boring head body 3, and the aperture of boring head body 3 is more bigger than eccentric block 6, and eccentric block 6 and boring head body 3 are linked together by micro-adjusting mechanism 4 and holding screw 10; Blade bearing 7 is arranged on the side of eccentric block 6.

Wherein, micro-adjusting mechanism 4 external cylindrical surface has scale, and its scale value f is

$f=\sqrt{{(a+r)}^2+{\left(2sin\frac{\mathrm{\θ}}{2}r\right)}^2-2(a+r)\left(2sin\frac{\mathrm{\θ}}{2}r\right)cos\frac{180-\mathrm{\θ}}{2}}-(r-a)$

A is the eccentric throws of boring head body 3 two circles when being assembled together with eccentric block 6;

R is the radius of boring head body 3 eccentric block 6 when being assembled together with eccentric block 6;

θ is the anglec of rotation of eccentric block 6, the angle that initial angle is f when being 0.

Preferably, described blind rivet 1, handle of a knife 2, boring head body 3, micro-adjusting mechanism 4, mesopore bolt, eccentric block 6, blade bearing 7 center are all porose, and this some holes is communicated with lathe apopore and blade bearing 7, makes the cooling fluid of lathe directly can arrive blade.Described blade bearing 7 is connected by centre bore bolt 5.

Preferably, described eccentric block 6 opposite side is provided with balancing weight 8, passes through thread connection.

Preferably, the adjustable established angle of blade bearing 7 180 degree.

Preferably, described eccentric block 6 bottom is provided with thread plug 9, and thread plug 9 is by sealed tube thread connection eccentric block 6.

The eccentric boring cutter of the utility model micro-adjusting center water outlet can add endoporus (Fig. 2) and the external cylindrical surface (Fig. 3) of a small boss.

Shown in Fig. 4-5, as eccentric block 6 axle radius 8mm, boring head body 3 pore radius 8.5mm, eccentric throw 0.5mm, when point of a knife be 34mm, θ angle is 0 degree to the distance at eccentric block 6 center, the radius of turn of boring cutter is 33.5mm, when θ angle is 180 degree, the radius of turn of boring cutter is 34.5mm, namely eccentric block 6 revolves turnback, feeding 1mm.

Claims (6)

1. the eccentric boring cutter of micro-adjusting center water outlet, comprises boring head body and blade bearing, it is characterized in that: also comprise eccentric block; Boring head body central is provided with through hole, and eccentric block is installed in the through hole of boring head body, and the aperture of boring head body is more bigger than eccentric block, and eccentric block and boring head body are linked together by micro-adjusting mechanism and holding screw; Blade bearing is arranged on the side of eccentric block.

2. the eccentric boring cutter of micro-adjusting center water outlet according to claim 1, it is characterized in that: micro-adjusting mechanism external cylindrical surface has scale, its scale value f is

$f=\sqrt{{(a+r)}^2+{\left(2sin\frac{\mathrm{\θ}}{2}r\right)}^2-2(a+r)\left(2sin\frac{\mathrm{\θ}}{2}r\right)cos\frac{180-\mathrm{\θ}}{2}}-(r-a)$

A is the eccentric throws of boring head body and eccentric block two circles when being assembled together;

R is the radius of boring head body and eccentric block eccentric block when being assembled together;

θ is the anglec of rotation of eccentric block, the angle that initial angle is f when being 0.

3. the eccentric boring cutter of micro-adjusting center water outlet according to claim 1, is characterized in that: described eccentric block center is provided with the deep hole being communicated with lathe apopore and blade bearing, makes the cooling fluid of lathe directly can arrive blade.

4. the eccentric boring cutter of micro-adjusting center water outlet according to claim 3, is characterized in that: described blade bearing is connected by centre bore bolt.

5. the eccentric boring cutter of micro-adjusting center water outlet according to claim 1, is characterized in that: described eccentric block opposite side is provided with balancing weight.

6. the eccentric boring cutter of micro-adjusting center water outlet according to claim 1, is characterized in that: the adjustable established angle of blade bearing 180 degree.