CN2149267Y - Arrangement for cutting thread using vertical lathe by single direction rotation - Google Patents

Abstract

The utility model relates to a device for cutting thread using vertical lathe by single direction rotation, which comprises a motor fixed on a wheel hanging frame, a supporting axle, a gear, a key, a bearing bush, an outer jaw clutch, an inner jaw clutch, a bearing, a baffle, springs, etc. The utility model is characterized in that a chuck and a work piece can process thread only in forward direction rotation, and screw thread with any screw pitches can be processed without disordering buckle. The utility model has the advantages of simple structure, energy saving and high work efficiency, and besides the service life of the lathe is prolonged.

Description

Arrangement for cutting thread using vertical lathe by single direction rotation

The utility model is a kind of device that is used for the unidirectional rotation machining screw of mechanical processing industry vertical lathe.

At present, vertical machined into screw thread technology does not have desirable solution so far in the domestic and international mechanical processing industry.The current vertical lathe transmission system of using all is to adopt the method machining screw of chuck and workpiece rotating, that is to say when machining screw, chuck and workpiece just change, knife rest moves upper slitter, be worked into end point, return knife rest again, chuck and workpiece counter-rotating, knife rest is return the top point, carries out second circulation again.Since large-scale vertical lathe chuck and workpiece more greatly, heavier, not only efficient is low for machining screw like this, but also can will cause producing following adverse effect because of the repeatedly conversion of rotating repeatedly of chuck:

1, because chuck moment produces huge inertia by just changing counter-rotating into, cause the bump of main transmission, and make connector loosening, the part that is hit produces because of fatigue damage, and other part also can so cause damage in various degree.

2, main frequent motor starting produces high starting current, causes the moment superheating phenomenon, burns out the element of motor or makes other electric controling element premature aging, malfunctioning, even cause that dangerous accident takes place.

3, chuck rotating repeatedly is actually the remaining kinetic energy of removing to offset chuck with electric energy, adds upper tool post factors such as time of return is long at a slow speed, and electric power is caused great waste.

Therefore the device of developing the unidirectional rotation machining screw of a kind of vertical lathe is a problem anxious to be solved in the domestic and international mechanical processing industry always.

The purpose of this utility model provide a kind of simple in structure, be widely used, the screw thread of conservation of power, raising work efficiency, any pitch of processing random button, each action is free and relaxed, prolongation lathe service life, keeps original machine tool accuracy; The only unidirectional rotation of chuck and workpiece just can realize the unidirectional rotation machining screw of the vertical lathe device of machining screw.

The purpose of this utility model is achieved in that whole device is by gear 1, key 2, change gear plate 3, bolt 4, motor 5, gear 6, key 7, outer jaw clutch 8, gear 9, bearing shell 28, spring 10, nut 11, bolster 12, baffle plate 13, thrust bearing 14, baffle plate 15, bearing shell 27, inner teeth clutch 16, gear 17, key 18, gear 19, inner teeth clutch 20, thrust bearing 21, outer jaw clutch 22, gear 23, bearing shell 26, ball bearing 24, gear 25 is formed, main points are gear 23 installation bearing shells 26, gear 19 is installed bearing shell 27, gear 9 installation bearing shells 28 adopt to be slidingly matched and are contained on the bolster, and with baffle plate 13, thrust bearing 14, baffle plate 15, spring 10 and nut 11 are fixed, outer jaw clutch is to adopt the sawtooth pattern structure, and the inner teeth clutch is to adopt spiral sawtooth pattern structure.Gear 1 usefulness key 2 is fixed on the motor shaft, ball bearing 24 refills on chuck axis A after adopting stationary fit to be contained on the gear 25, gear 6 usefulness keys 7 are fixed on the chuck axis A, gear 17 usefulness keys 18 are fixed on the vertical shifting axle B of knife rest, and gear 17 is after change gear plate moves to desired location, presses the actual range preparation of gear 17 and gear 9.Operation principle of the present utility model and method of operating are: at first the normal starting chuck just changes, chuck axis A rotates, driven gear 6 and gear 9 rotate, this moment, the inner teeth clutch 16 and 20, outer jaw clutch 22 and 8 is all less than engagement, gear 23 does not change, knife rest is vertically motionless, after the starting lathe moves horizontally motor, knife rest moves horizontally a C and rotates, knife rest is shifted to the assigned address of work piece, cutter is on the position to be cut, at this moment the crawl motor moves downward, power is just passed to gear 1 by chuck axis A, gear 25, gear 23, make inner teeth clutch 16 produce displacement, inner teeth clutch 20 on the gear 9 is just under the promotion of spring, with 16 engagements of inner teeth clutch, outer jaw clutch 22,8 engagements, the motion of knife rest machining screw just can be from chuck axis A, gear 6, gear 19, outer jaw clutch, gear 9, gear 17 is passed to the vertical shifting axle B of knife rest and is worked downwards, this moment, the inner teeth clutch 16, gear 23, gear 25, gear 1 idle running makes the inner teeth clutch keep engagement.Process after a cutter puts in place, at first start knife rest and move horizontally a C counter-rotating, make the cutter level leave workpiece, the crawl motor moves upward immediately, at this moment, motor 5, gear 1, gear 25, gear 23,16 a little rotation of inner teeth clutch, inner teeth clutch 20 is stepped to a new level along helicoid, outer jaw clutch 22,8 separate, machining screw is moved thereby is stopped, gear 9 moves right and steps to a new level and supported pillow block restriction and can not moving to right again, but inner teeth clutch 16,20 engagement is not separately, actuating motor moves upward immediately, by motor 5, gear 1, gear 25, gear 9, gear 17 is passed to the vertical shifting axle B of knife rest, makes knife rest upwards return the home position.So just finished a working cycles, like this constantly repeatedly, the machining screw operation just keeps just changeing coming and going under the situation of not stopping at chuck always carries out, till processing screw thread.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

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

With reference to accompanying drawing, whole device is made up of gear 1, key 2, change gear plate 3, bolt 4, motor 5, gear 6, key 7, outer jaw clutch 8, gear 9, bearing shell 28, spring 10, nut 11, bolster 12, baffle plate I 13, thrust bearing 14, baffle plate 15, inner teeth clutch 16, gear 17, key 18, gear 19, bearing shell 27, inner teeth clutch 20, thrust bearing 21, outer jaw clutch 22, gear 23, bearing shell 26, ball bearing 24, gear 25.Motor 5 usefulness bolts 4 are fixed on the change gear plate 3, with key 2 gear are fixed on 5 in the motor.Ball bearing 24 is contained in chuck axis A and goes up back installation gear 25, and gear 6 usefulness keys 7 are fixed on the chuck axis A.Bolster 12 is fixed on to be threaded on the change gear plate 3, thrust bearing 21, bearing shell 26 is contained on the bolster 12 again, and gear 23 and inner teeth clutch 20 are contained on the bolster 12 after welded together.After bearing shell 27 is contained on the inner teeth clutch 20, gear 19 and outer jaw clutch 22 are contained on the bearing shell 27 after welded together, bearing shell 28 is contained on the bolster 12.After outer jaw clutch 8, inner teeth clutch 16 and gear 9 are welded together, be contained on the bearing shell 28, again baffle plate 15, thrust bearing 14, baffle plate 13, spring 10 be contained on the bolster 12, be fixed with nut 11.With key 18 gear 17 is fixed on the vertical shifting axle B of knife rest.

Arrangement for cutting thread using vertical lathe by single direction rotation compared with prior art, have simple in structure, range of application is wide, lathe service life is not disorderly detained, prolonged to the screw thread of using electricity wisely, raising work efficiency, any pitch of processing, but a chuck single direction rotation is the advantage such as machining screw just, this device will improve forward a step to the machining screw technology in the mechanical processing industry, will be widely used in the mechanical processing industry.

Claims (2)

1, the unidirectional rotation machining screw of a kind of vertical lathe device, it is by gear 1, key 2, change gear plate 3, bolt 4, motor 5, gear 6, key 7, outer jaw clutch 8, gear 9, bearing shell 18, spring 10, nut 11, bolster 12, baffle plate 13, thrust bearing 14, baffle plate 15, inner teeth clutch 16, gear 17, key 18, gear 19, bearing shell 27, inner teeth clutch 20, thrust bearing 21, outer jaw clutch 22, gear 23, bearing shell 26, ball bearing 24, gear 25 is formed, it is characterized in that: said gear 23 is installed bearing shell 26, gear 19 is installed in bearing shell 27, gear 9 installation bearing shells 28 adopt to be slidingly matched and are contained on the bolster, and with baffle plate 13, thrust bearing 14, baffle plate 15, spring 10 and nut 11 are fixed, outer jaw clutch is to adopt the sawtooth pattern structure, and the inner teeth clutch is to adopt spiral sawtooth pattern structure.

2, the unidirectional rotation machining screw of vertical lathe according to claim 1 device, it is characterized in that: said gear 1 usefulness key 2 is fixed on the motor shaft, ball bearing 24 refills on chuck axis A after adopting stationary fit to be contained on the gear 25, gear 6 usefulness keys 7 are fixed on the chuck axis A, gear 17 usefulness keys 18 are fixed on the vertical shifting axle B of knife rest, and gear 17 is after change gear plate 3 moves to desired location, presses the actual range preparation of gear 17 and gear 9.

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