The application of tool of boring taper hole

Graph 1 1.

When craft analysis is machining water square to reach taper hole to each aperture, if be machined on center lathe CW61100, workpiece grows 800mm, the appearance is all directions body, because accept the restriction of spare parts appearance, cannot use central wearing, can secure its through tool only machine on rotary table, stability of method of this kind of treatment is insufficient, lathe rotate speed cannot too tall, the short of of exterior surface roughness of aperture designs a requirement inside. If be machined on vertical lathe CA5112, put in the problem with insufficient stability likewise, and hold feel embarrassed spend big. The course analyses research, can use T611B of common horizontal boring machine, workpiece is put on workbench directly, stability is very good, when the aperture inside treatment, should solve treatment taper hole only a difficulty, the others dimension uses common boring lever to machine contented requirement. 2.

The solution designs the tool of boring taper hole of taper hole of a boring, if pursue 2.

1.

Inclined spacer 2.

The knife is placed 3.

Boring cutter 4.

Boring lever 5.

Locking steel wire 6.

Copper is covered 7.

Prop up set 8.

Bolt 9.

Pin 10.

Arbor 11.

Round nut pursues 2 　 its structure is as follows: Will prop up set 7 through bolt 8 fixed come back in boring machine on rotary table. The 4 Mohs awl powers that carry a rear are the same as boring lever boring machine main shaft is secured together, boring lever 4 and prop up set 7 between set copper to cover 6 do slip prop up. Boring lever front has a via, the clip that it is a knife 2, boring cutter 3 with round nut the radial of 11 slides provide a space. Boring cutter 3 place in the knife through carrying silk on the head to secure 2 on, the knife is placed of 2 outside circle and round nut of 11 outside the oriented action since the circle, drive boring cutter radial to move. 10 left end have arbor to grow aperture, the knife is placed 2 with boring cutter 3 in long Kong Li axial moves. Arbor 10 through pin 9 with boring lever 4, copper is covered 6, support a 7 link, pin 9 outside end carries locking steel wire 5 locking. When machining arbor, the rake of the rake of arbor and spare parts keeps consistent, the long aperture length on the long aperture of arbor left end and boring lever should be more than the length of workpiece taper hole, width should part and knife clip, pin 9 outside the circle has 0.

05 ~0.

The clearance of 1mm. 3.

Working principle rotates when main shaft when, can drive whole apparatus to be the same as fast rotate, when main shaft is extended, because arbor is mixed through pin,support a link, horizontal way won't produce displacement, and main shaft drives clip of boring lever, knife, boring cutter to be extended at the same time, as a result of arbor Zun Duan has certain rake, knife clip can drive boring cutter to follow rake and retractile, the hole of boring will be smaller and smaller. Manage together, when main shaft is retractile, boring cutter can be extended gradually, the hole of boring is larger and larger. The rake of the rake of taper hole and arbor is identical. Graph 2 it is the condition when arbor of boring taper hole is extended completely. 4.

Epilogue carries out a proof through production, this tool solved the difficult problem that machines taper hole in boring machine completely, and use reliable, assured to machine precision. CNC Milling