CN2093710U

CN2093710U - Circular-arc worm and worm-wheel cutting device

Info

Publication number: CN2093710U
Application number: CN 90224094
Authority: CN
Inventors: 邹和明; 石良水; 杨锦平; 付登奉; 胡兆麟; 魏国钧; 徐培荣; 张小珠; 万荣根; 张明清
Original assignee: 邹和明
Priority date: 1990-11-20
Filing date: 1990-11-20
Publication date: 1992-01-22

Abstract

The utility model relates to a circular-arc surface worm and worm-wheel cutting device which is used on hobbing machines or ordinary lathes with divided teeth for cutting circular-arc surfaces (spherical surfaces) in the mechanical processing. In the utility model, a cutter bar is provided with a step surface which is parallel to the axial line of the cutter bar; a cutter body is provided with a step groove, a screw hole, a cutter loading hole, and a positioning hole corresponding to the cutter bar; through cutter heads which are arranged on the cutter bar and the cutter body and are convenient to grind and regulate, synchronous cutter feeding plates enable the cutter heads to be fed along circular-arc surfaces, and accurate tooth shape is ensured. The utility model has simple structure and low cost and can cut and process without special cutter or special lathes. The use areas of the circular-arc surface worm and worm-wheel cutting device and the processing range of the ordinary lathes are enlarged.

Description

Circular-arc worm and worm-wheel cutting device

In the machining a kind of on machine tool the device of cutting circle cambered surface (sphere) worm and wormwheel.

Existing hourglass screw worm gear generally is to use dedicated tool or special purpose machine tool processing, involves great expense, and dedicated tool particularly, the manufacture difficulty height, and have unicity, under the situation of no dedicated tool, can't process by specification requirement at present.

The utility model has overcome above-mentioned deficiency, provide a kind of at gear-hobbing machine or the device that uses common cutter head processing hourglass screw worm gear on the machine tool of branch tooth transmission mechanism generally arranged, simple in structure, economical and practical, solved the problem of processing the hourglass screw worm gear under no dedicated tool and the special purpose machine tool situation.

The utility model comprises: knife bar 1, cutter hub 2, screw 3, positioning screw 4, synchronous feed plate 5, cutter head 6 is characterized in that: A) knife bar 1 is cut the step surface 1a that is parallel to its axis, B) cutter hub 2 is shaped on and knife bar 1 corresponding step groove 2a, screw 2b, dress tool bore 2c, locating hole 2d, C) is shaped on the tangential feed plate 5 and cutter hub 2 locating holes and workpiece to be machined fabrication hole corresponding positioning hole 5a.

Use the utility model can process the worm and wormwheel of dissimilar tooth form and different-diameter, the unicity that does not have dedicated tool, the cutter head that this device uses is made simple, and the cost antipode is low, and sharpening is easy to adjust, dedicated tool manufacturing difficulty and have unicity, also be that the hourglass screw worm gear adopts one of wideless reason, and the hourglass screw worm gear have load greatly, the advantage that efficient is high, use the utility model can enlarge the use face of hourglass screw worm gear, and reduced its cost.

Because the utility model can make the cutter head depth of cut arbitrarily reduce along the thread face, be tending towards continuously, on this meaning, the profile of tooth that the dedicated tool of comparable limited tooth processes is more accurate.Have on the machine tool of branch tooth transmission mechanism at gear-hobbing machine or other, this device be loaded on main shaft can be on rotary table machining worm wheel, otherwise, this device is loaded on rotary table, utilize other traversing guide and the device itself of workbench to do to revise tool setting, can on main shaft, process hourglass screw, enlarge the range of work of machine tool.

The utility model has clearly illustrated in the accompanying drawings: Fig. 1 is the structure chart of this device; Fig. 2 is the side view of Fig. 1;

Referring to accompanying drawing, among the embodiment, be used for this device of y38 gear-hobbing machine; Knife bar 1 cooperates tapering with machine tool chief axis be No. 4, Mohs, and diameter is 50mm, and cutter hub 2 dress tool bore 2c diameters are 20mm, and feed plate 5 is shaped on and each two in cutter hub 2 and the corresponding hole of work piece synchronously, and diameter is 16mm.Manufacturing process of the present utility model is similar with general frock knife bar with specification requirement.

Claims

1, in the machining a kind of on machine tool the device of cutting circle hourglass worm worm gear.It comprises: knife bar 1, cutter hub 2, screw 3, positioning screw 4, tangential feed plate 5, cutter head 6, it is characterized in that: A) knife bar 1 is cut the step surface 1a that parallels to the axis, B) cutter hub 2 is shaped on and knife bar 1 corresponding step groove 2a, screw 2b, dress tool bore 2c, locating hole 2d, c) is shaped on and cutter hub 2 locating holes and workpiece to be machined fabrication hole corresponding positioning hole 5a on the feed plate 5 synchronously.