CN86206191U

CN86206191U - Vortex power unit of vertical intercross floating eccentric supporting

Info

Publication number: CN86206191U
Application number: CN 86206191
Authority: CN
Inventors: 林荣彪
Original assignee: NANJING NO 2 MACHINE TOOL PLANT JIANGSU PROV
Current assignee: NANJING NO 2 MACHINE TOOL PLANT JIANGSU PROV
Priority date: 1986-08-25
Filing date: 1986-08-25
Publication date: 1987-08-19

Abstract

The utility model discloses a vortex power unit of vertical intercross floating eccentric supporting which is used for the motion of rapidly cutting various screw rods and screw mandrels used for the machinery. The structure of utility model is mainly characterized in that a spherical (joint) bearing (7) is arranged in a cutter shaft (3). An eccentric-end shaft sleeve (14) is arranged in the spherical bearing (or the joint bearing) (7). A spring sleeve (27) is arranged in the eccentric hole of the short shaft sleeve (14). A check ring (17) and a sealing ring b (28) are arranged outside the eccentric hole. A stopper ring (25) is arranged on the back end, and a stopping barrier chip (19), etc. are arranged on the upper end. The utility model is a vortex power unit of vertical intercross floating eccentric supporting in a motion body with good versatility, convenient operation, stable quality, and high production efficiency. The vortex power unit of vertical intercross floating eccentric supporting can process various screw mandrels and screw rods with the same of different diameters at the screw part and the adjacent end.

Description

The unsteady eccentric support type whirlwind unit head of grade separation in the body

The utility model proposes in a kind of movable body of using as all kinds of mechanical screws of high-speed cutting and screw mandrel the grade separation eccentric support type whirlwind unit head that floats.

The whirlwind unit head of prior art design is external supporting inward turning wind unit head, its cutter shaft body inside all is hollow, processed screw mandrel spare is adding man-hour, must pass hollow cutter shaft, and then support with being placed in carriage on the guide rail or the follow-rest on the planker end to screw mandrel, its other end blocks with chuck.This whirlwind unit head only limits to the diameter that is applicable to processed in addition part threaded portion will be identical with its link diameter or the former is greater than latter instance.Yet processed screw mandrel, the screw rod structure of part in addition often are not quite similar, so employing available dynamic head will be processed the different screw mandrel of various structures, other part of screw rod just seems and has any problem.

The purpose of this utility model is the problem at above-mentioned existence, the grade separation eccentric support type unit head that floats in the movable body that propose that a kind of versatility is good easy to operate, steady quality, production efficiency is high.

Technology settling mode of the present utility model: structure is shown in accompanying drawing 1,2.The inward turning wind unit head that it is made up of cutterhead 2, housing 4, outer bearing 5, cutter shaft 3, nut 6, top 9, belt pulley 11, support 12, motor 16, end cap 21, back-up ring 22, key 23.In cutterhead 2, settle a rubber back-up ring 17, at its rear portion trim ring 29 is arranged, there is cutter shaft 3 in the outside, cutter shaft 3 is fixed on the outer bearing 5, spherical bearing (or oscillating bearing) 7 is installed in it, an eccentric short sleeve 14 that designs according to the tooth depth of processed screw mandrel is arranged in spherical bearing (or oscillating bearing) 7, a stop catch 19 is arranged on short sleeve 14, there is a stopper ring 25 rear end, spring housing 27 is arranged in the eccentric orfice of short sleeve 14, the outside also has a sealing ring b28, be provided with spring housing adjusting nut 30 at spring housing 27 front ends, at stopper ring 25 front ends catch 26 is arranged, eccentric short sleeve 14 has an eccentricity e with cutter shaft 3.The axial line of cutter shaft 3 with screw mandrel in the spring housing 27 or screw rod part axial line grade separation when the work in addition is housed, sphere (or joint) bearing 7 is positioned in cutter shaft 3 bodies, the rotation of can floating when clamping workpiece not.

The utility model is that one section stepped hole of design is used as the movable body internal support screw mandrel basis of part in addition in hollow cutter shaft 3, a biserial self-centering spherical bearing (or oscillating bearing) 7 is installed in the stepped hole, is satisfied the dual needs that

workpiece

15,3 rotations of hollow cutter shaft and cyclone body are moved helical angle λ with it.The outer ring of bearing 7 is moved thereby limit the outer of bearing 7 with there being the labyrinth type ring 20 of eccentric orfice to push down, simultaneously can also be as preventing that iron filings from entering the first line of defence of bearing 7.Installing rubber seal 28 are used as the defence line, second road that prevents that iron filings from entering in the pressure ring 20.The inner ring of bearing 7 is provided with a short sleeve 14 that has eccentric orfice, establishes eccentric orfice on the short sleeve 14 and be the depth of cut needs when satisfying screw cutting.A two-way tapering spring chuck 27 is set again on the short sleeve 14, with this holding workpieces, the internal diameter of chuck 27 can be changed according to the diameter of work size, adjusting nut 30 of the Front-end Design of chuck 27, regulate the gap of chuck 27 and workpiece 15 with it, after workpiece 15 inserts chuck 27, just be in quick condition, clamp once machine chuck 1, again with jail, 9 top of the thimble on the tailstock 8, workpiece 15 will be adjusted to horizontal level automatically, so can process wire rod thread partly diameter and the identical or different all kinds of screw mandrels of its neighbouring part diameter.

Accompanying drawing 1 is an axonometric drawing of the present utility model.

Accompanying drawing 2 is vertical sectional structure sketches of the present utility model.

In the accompanying drawing 11 is chuck, the 2nd, cutterhead, the 3rd, and cutter shaft, the 4th, housing, the 5th, outer bearing, the 6th, nut, the 7th, sphere or oscillating bearing, the 8th, tailstock, the 9th, top, the 10th, guide rail, the 11st, belt pulley, the 12nd, support, the 13rd, middle carriage, the 14th, short sleeve

In the accompanying drawing 2 16 is motor, the 1st, chuck, the 17th, the rubber back-up ring, the 2nd, cutterhead, the 18th, sealing ring a, the 4th, bearing, the 19th, the stop catch, the 20th, pressure ring, the 5th, outer bearing, the 21st, end cap, 22 back-up rings, the 6th, nut, the 11st, belt pulley, the 23rd, key, the 3rd, cutter shaft, the 15th, workpiece, the 9th, top, the 24th, sleeve, the 8th, tailstock, the 10th, guide rail, the 25th, stopper ring, the 26th, catch, the 27th, spring housing, the 7th, sphere or joint) bearing, the 28th, sealing ring b, the 14th, eccentric short sleeve, the 29th, trim ring, the 30th, the spring housing adjusting nut.

Embodiment: its structure is respectively shown in accompanying

drawing

1,2.

Processed screw mandrel 15 interted spring chuck 27, dish movable wire bar 15 half cycles to the operator here, had so just finished the needs of cutting-in motion.Adjust the height of upper slide rest on the support 12 and move the one-tenth spiral angle λ of housing 4, this moment cutterhead 2 centres of gyration point △ h that is forced to descend, make the point of a knife centre of gyration and chuck 2, top 9 centre-height unanimity, so just but clamping pushes up firm screw mandrel 15, then, the core diameter of thread at escape place on the point of a knife of the whirlwind cutter of adjustable and retractable distance and the screw mandrel 15 had evenly slightly contact, moving chuck one circle of dish, check each point of a knife contact situation, as cutter shaft rotates easily when coiling, just can start the whirlwind unit head earlier and restart main driving motor, system can concern to come any type of screw thread of machining by deciding the screw thread working motion.When the first rhizoid bar process lift down after, later same batch of screw mandrel processing does not just need to adjust again, can directly load onto and process.

The utility model can be processed any elongated screw mandrel that has or not the requirement of technology step as required, and it is particularly useful for tiny screw mandrel processing, and minimum machining diameter reaches φ 12mm, and workpiece is curved Bent slight, general bending value between 0.025～0.08mm, stable cutting, the point of a knife continuous cutting 10 rhizoid bars of the YT15 alloy knife that 0.6mm is wide are tipping not, does not need cooling, work efficiency improves 4～6 times than original.

The present invention also is applicable to the implement structures such as the depth drill, deep-hole boring, the deep hole top gem of a girdle-pendant, deep hole mill of specific (special) requirements.

Claims

1, grade separation floats eccentric support type whirlwind unit head by cutterhead 2 in a kind of body, housing 4 outer bearings 5, cutter shaft 3, nut 6, top 9, belt pulley 11, support 12, motor 16, end cap 21, back-up ring 22, key 23 is formed, it is characterized in that in cutterhead 2, settling a rubber back-up ring 17, at its rear portion trim ring 29 is arranged, there is cutter shaft 3 in the outside, cutter shaft 3 is fixed on the outer bearing 5, spherical bearing (or oscillating bearing) 7 is installed in it, an eccentric short sleeve 14 that designs according to the tooth depth of processed screw mandrel is arranged in spherical bearing (or oscillating bearing) 7, a stop catch 19 is arranged on short sleeve 14, there is a stopper ring 25 rear end, spring housing 27 is arranged in the eccentric orfice of short sleeve 14, the outside also has a sealing ring b28, be provided with spring housing adjusting nut 30 at spring housing 27 front ends, at stopper ring 25 front ends catch 26 is arranged, eccentric short sleeve 14 has an eccentric distance e with cutter shaft 3.

2, the unsteady eccentric support type whirlwind unit head of grade separation in the movable body according to claim 1, the axial line that it is characterized in that cutter shaft 3 be contained in screw mandrel in the spring housing 27 or screw rod part axial line grade separation when the work in addition, sphere (or joint) bearing 7 is positioned in the rotation of can not floating during clamping workpiece of cutter shaft 3 body inherences.