CN2159845Y - Double shaft screw driving machine tool - Google Patents

Abstract

The utility model discloses a double-shaft tapping machine tool able to process two single-thread components simultaneously, which is characterized in that the front side of the machine tool is provided with two working-spindles mechanisms vertical with each other in parallel, a transmission system is adopted for transmission, and the lower ends of the two spindles are both provided with threading cutter tools. When the two spindles work, the two spindles rotate in the same direction, and move upward and downward simultaneously; the speed of moving upward (retract) is higher than the speed of moving downward (feeding) by three times. The machine tool is suitable for processing single thread such as oil or bulkhead malleable cast iron pipe components or other single thread components; the production efficiency of the machine tool is higher than that of an existing three-heads die head threading machine by more than one time; the utility model has the advantages of work saving, electricity saving, compact structure, small ground occupation, low cost, etc.

Description

Double shaft screw driving machine tool

The utility model is a kind of thread cutting machine that has improved, the particularly a kind of twin shaft tapper that can process two single thread members simultaneously.Be suitable for single thread malleable cast iron pipe fitting and other single thread members such as processing oil is appointed, plug.

Existing malleable cast iron pipe fitting thread cutting machine is three headgear silk lathes, and it is provided with three working-spindles of vertical, two levels, can be to the malleable cast iron pipe fitting of many screw threads, as the screw thread processing of three-way elbow, the first-class member of reducing socket.But processing has only single thread, as oil appoint, during malleable cast iron pipe fitting such as plug, when adopting three headgear silk machine toolings, have only wherein vertical main shaft work done, the main shaft of all the other two levels all in idle running, had both been wasted machine power, the vars that consume have quickened the machine tool component wearing and tearing again more.Domestic existing thread cutting machine is single axle, and the feed rotating speed is identical with the withdrawing rotating speed, and working (machining) efficiency is restricted, and the screw specification limit that can process is also little, far can not satisfy the malleable cast iron pipe fitting requirement of mass production.

Task of the present utility model is exactly to provide a kind of twin shaft tapper that can process two single thread members simultaneously at the problem of above-mentioned existence, single thread malleable cast iron pipe fitting and other single thread members such as its suitable processing oil is appointed, plug.

Task of the present utility model is finished as follows: be provided with two vertical tool spindle mechanisms arranged side by side in the lathe front, by a transmission system transmission, in the lower end of two main shafts screw tool be installed all.During the work of two main shafts, rotation moves up and down synchronously and carries out in the same way.The screw tool of two main shaft lower ends is two workpiece of processed clip on jig simultaneously respectively, fast three times of its withdrawing (on move) velocity ratio feed (moving down) speed.

The concrete structure of utility model and transmission system are provided by following accompanying drawing and embodiment.

Fig. 1 is a drive system structure schematic diagram of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a vertical view of the present utility model.

With reference to Fig. 1, this twin shaft tapper is to be made of parts such as lathe bed 23, gearbox 24, travel switch mechanism 25, anchor clamps 26 and motor 27.Being rotatablely moved by the axle I of motor 27 drags an II rotation by belt pulley 1, belt 2 and belt pulley 3, drives the gear 4 and the gear 11 that are contained on the II and rotates.By the rotation of gear 4, the transmission by third wheel 5 and axle III drives the kink gear 6 be contained on the IV and rotates.By the rotation of gear 11, drive the kink gear 12 that is contained on the IV and rotate.9,10 for being contained in two electromagnetic clutch on the IV.When electromagnetic clutch 10 energising, and during electromagnetic clutch 9 outages, the rotation of kink gear 12 power transmission shaft IV; When electromagnetic clutch 10 outage, and during electromagnetic clutch 9 energisings, the rotation of kink gear 6 power transmission shaft IV.In transmission system, kink gear 12 is 2.5 with the speed reducing ratio of gear 11, and kink gear 6 is 1.2 with the speed-up ratio of gear 4.The energising and the outage of electromagnetic clutch 9,10 are by 25 controls of travel switch mechanism, and travel switch mechanism 25 also passes through gear 7 and gear 8 and axle V forward or reverse thereupon by the rotation of axle IV.By rotatablely moving of axle IV by bevel gear pair 13,14, transmission jackshaft VI and intermediate speed pinion 15 rotate, the rotation of pinion 15 is by being contained in the gear wheel 20 and 21 on two axle sleeves 18 respectively, two axle sleeves 18 of transmission simultaneously rotate, more respectively by two feather key 19 transmissions, two working-spindle VII and VIII rotation.By being contained in the screw rod 16 of main shaft VII, VIII upper end respectively, respectively with the effect of nut 17 separately, make main shaft VII, VIII in rotation, just can move up and down synchronously, promptly main shaft VII, VIII move down (feed) when just changeing, and move (withdrawing) on during counter-rotating.The cutter 22 that machining screw is used is installed in the lower end of main shaft VII, VIII respectively, on 23 table tops of the lathe bed below the vertical central of working-spindle VII, VIII, is provided with the anchor clamps 26 of two same workpieces to be machined of clamping simultaneously.

Main shaft VII, VIII can have multiple rotating speed, realize to change belt pulley 3.This diaxon tapper can be equipped with the different belt pulley of a plurality of diameters 3 according to the needs of user's processing work.

The utlity model has compact conformation, production efficiency height, economize the merit power saving, the advantage such as the lathe floor space is little, and cost is low can satisfy the batch production of malleable cast iron pipe fitting and other single thread member of single thread.

Claims (2)

1, a kind of twin shaft tapper, by lathe bed 23, gearbox 24, travel switch mechanism 25, parts such as anchor clamps 26 and motor 27 constitute, it is characterized in that bevel gear pair 13 in transmission system jackshaft VI, 14 are provided with two vertical working-spindle VII arranged side by side and VIII transmission system with the back of intermediate speed pinion 15, the main shaft VII, VIII is passed through the axle sleeve 18 that feather key 19 separately connects separately, on two axle sleeves 18, gear wheel 21 and 20 are housed respectively, in the main shaft VII, screw rod 16 positions of VIII upper end all are equipped with nut 17, in the main shaft VII, the lower end of VIII is separately installed with screw tool 22, in the main shaft VII, on lathe bed 23 table tops of the below, vertical central position of VIII, be provided with the anchor clamps 26 of two same workpiece of clamping simultaneously.

2, twin shaft tapper according to claim 1, the gear wheel 21 and 20 on the axle sleeve 18 that it is characterized in that being installed in the intermediate speed pinion 15 of transmission system jackshaft VI bottom and being contained in two vertical tool spindle VII and VIII meshes simultaneously.

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