CN2182019Y - Vertical drilling, threading machine - Google Patents

Abstract

The utility model relates to a vertical drilling and tapping machine; the essential technical proposal is that an entire-gear transmission device is assembled between a high speed shaft and a combined type standard electromagnetic clutch; the lower end of the main shaft is connected with a conical head; the lifting device of a working bench is provided with a lead screw in coaxial connection with a turbine, and the lead screw is connected with the lifting sheath of the working bench. A pulse encoder driving system is adopted. The utility model has the advantages of compact structure, reliable transmission, and high productive efficiency; the productive efficiency is 2-4 times of the productive efficiency of a screw thread milling machine; the machine can be used to process internal screw-threads (m 10-m 100 times 2) with a plurality of specifications, and the machine also has multiple functions such as tapping and drilling.

Description

Vertical drilling, threading machine

The utility model relates to a kind of vertical brill tapping machine, particularly a kind of processing heavy caliber internal thread, the vertical brill tapping machine of simultaneously also drillable vertical photoimpact control.

In existing technology, in the processing during small-bore internal thread, adopt the combined electrical magnet clutch to replace the vertical tapping machine that utilizes photoimpact to control automatically of motor commutation, can process small-bore internal thread in M16 to M52 * 2 (as a kind of vertical tapping machine of patent No. 90210361.X), it is the single task role of small-bore internal thread machining in can only finishing that there is shortcoming in this tapping machine, and to greater than M52 * 2(coarse thread M24) above internal thread machining is powerless, particularly can't resolve the boring processing tasks.

The purpose of this utility model provides a kind of vertical brill tapping machine, running part adopts from high speed shaft to all-gear drive between combined type standard electric magnet clutch, replace the space crossed transmission of bead apex and utilize the photoimpact encoder that signal is provided, automatically control by digital control implement, based on tapping, the machining tool that can hole simultaneously, can process M10 above-M100 * 2 are with the internal thread of interior various bores, bore diameter is φ 10-φ 50.This lathe can be suitable for the needs of drilling and tapping in single-piece and the small serial production, also can satisfy the requirement of special tapping in a large amount of in batch the production simultaneously, for the production increases with quality up and cost of production down condition that provides is provided middle heavy caliber internal thread machining.

The purpose of this utility model is achieved in that when machining internal thread or boring, adopt a kind of vertical brill tapping machine, it comprises gearbox, motor, belt gear, high speed shaft electromagnetic clutch, Bevel Gear Transmission mechanism, main shaft, the worktable lifting device that the turbine worm driving member is arranged, photoimpact encoder and change-over switch, and the main points of its technical scheme are: assemble all-gear system between high speed shaft and combined type standard electric magnet clutch; Lower end at main shaft connects nose cone; In the worktable lifting device, there is the lifting that is actively connected on the workbench bottom with the coaxial leading screw leading screw that connects of turbine to put.The pulse coder transmission system, change steel wire and walked around roller, the upper end is fixed on the pull bar with the clip interlock, the lower end is still by the positioning screw hole on the interlock card, steel wire up is wrapped on the roller of fixing with photoimpact encoder turning cylinder by the slit of damping cover, the cross-drilled hole that passes through the roller shank has prevented steel wire and wheel slip by the tight screw lock of rope again.

Owing to adopt said structure, make the gearbox designs compactness, reliable transmission, when screw tap withdrawing rotating speed is tapping 1.5 times are so the production efficiency height has increased the bore of machining internal thread, production efficiency is 2-4 times of screw-thread miller, plurality of specifications left and right sides medial rotation screw thread by between M10-M100 * 2 all can be processed, and has increased the volume that is put in base lower left quarter fuel tank, has reduced the oiling number of times in the production process.Because there is the Mohs drill chuck nose cone that drill chuck can be installed the main shaft lower end,, uses the utility model so can be used as vertical drill.

The utility model is described in further detail below in conjunction with accompanying drawing.

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

Fig. 2 is the right view of Fig. 1.

Fig. 3 is that the E of Fig. 1 is to partial view.

1 gearbox body among the figure, 2 motors, 3 cone pulleys, 4 bead apexes, 5 cone pulleys, 6 high speed shafts, 7 pinions, 8 transition wheels, 9 clutch shafts, 10 gear wheels, 11 left electromagnetic clutch, 12 keys, 13 right electromagnetic clutch, 14 gear wheels, 15 gears, 16 bevel gears, 17 bevel gear wheels, 18 main shafts, 19 photoimpact encoders, 20 steel wires, 21 interlock cards, 22 fuel tanks, 23 workbench, 24 lifting covers, 25 leading screws, 26 turbines, 27 scroll bars, 28 bases, 29 handwheels, 30 clockwork springs, 31 encoder axles, 32 rollers, 33 disc springs, 34 change-over switches, 35 bearings, 36 going barrels, 37 damping covers, 38 damping springs, the tight screw of 39 ropes, 40 nuts, 41 main shaft casings, 42 dog screws, 43 tighten screw.

1-3 describes concrete structure of the present utility model and operating process in detail with reference to the accompanying drawings.The utility model is that 90210361.X " utility model " compares with the patent No., has changed transmission system, worktable lifting system, pulse coder transmission system, changed the volume and the position of fuel tank, and complete machine has increased the boring function.Transmission system be by the motor 2 that is installed in gearbox body 1 bottom by adhesive tape 4, join and change cone pulley 3 and be connected gear wheel 10 engagements that the pinion 7 on the high speed shaft 6 is fixed together by transition wheel 8 and left electromagnetic clutch 11 with high speed shaft 6, high speed shaft 6 right-hand member gears 15 mesh with the gear wheel 14 that right electromagnetic clutch 13 is fixed together, and electromagnetic clutch 9 is connected with the main shaft quadrature by the bevel gear 16 of right-hand member; And 17 centre bores of the bevel gear wheel on the main spindle box are made the direct and main shaft 18 upper end spline fitted of internal spline; Workbench 23 jacking systems are made up of turbine 26 leading screws 25, lifting cover 24 etc.; Removable Mohs drill bit nose cone is installed in the lower end of main shaft 18.During tapping, behind electric motor starting, by bead apex 4 and cone pulley 35 power is passed to high speed shaft 6, then high speed shaft is by a left side, right two-way reaches power on electromagnetic clutch 11 and 13, left side road is by pinion 7, transition wheel 8 passes to gear wheel 10, gear wheel 10 by screw and taper pin and left electromagnetic clutch 11 be fixed as one right wing by gear 15 direct transmissions to gear wheel 14, gear wheel 14 fixes as one by screw and taper pin and right electromagnetic clutch 13, and because left road is by a transition wheel, so about two electromagnetic clutch rotation directions opposite, again because left road gearratio is 1.5 times of right wing, so the rotating speed of electromagnetic clutch 13 is 1.5 times of electromagnetic clutch 11.Left side electromagnetic clutch 11 coils are connected during tapping, drive clutch shafts 9 by key 12, and bevel gear 16,17 is just changeing main shaft 18 to carry out tapping, and right electromagnetic clutch 13 coils disconnected and dallied this moment.Attack when presetting the degree of depth when screw tap, the circuit of clutch 11 coils disconnects, and this moment, clutch 13 circuit were connected rapidly, and by key 12, clutch shaft 9, bevel gear 16,17 drive main shafts 18 counter-rotating withdrawings with at a high speed.The internal spline that the utility model cooperates with main shaft 18 directly on the centre bore of bevel gear 17, makes the coupling stiffness of main spindle multiple spline increase mechanism simplifying; During the utility model boring, be to be shaped on the short nose cone of Mohs drill point in the lower end of main shaft 18 to load onto drill chuck, change-over switch 34 is pushed bore position, this moment, the right electromagnetic clutch 13 of high speed rotating was connected, driving main shafts 18 by key 12, clutch shaft 9, bevel gear 16,17 is just changeing boring, and when being bored into when presetting the degree of depth, clutch circuit disconnects, meanwhile left clutch 11 circuit are connected main shaft 18 rapidly and are withdrawed from drill bit with low speed and reverse, finish boring procedure.The self-powered platform jacking system is made up of handwheel 29, scroll bar 27, turbine 26, leading screw 25, lifting cover 24 and workbench 23, this system has increased lead screw transmission again on the basis that crank handle power is reduced, further reduced crank handle power again, simultaneously workbench 23 and dress thereon anchor clamps and the weight of workpiece all act on the axis of self-powered platform and lifting cover etc., the good rigidity that supports can be born bigger gravity; Pulse coder transmission system roller 32 is fixed tightly on the axle of pulse coder by the shank screw, clockwork spring the inner is inserted in the roller shank and rotates together with roller, the clockwork spring outer end is stuck in the breach of going barrel inwall and maintains static, steel wire 20 upper ends make the tight screw of rope turn over certain angle around the cross-drilled hole that roller 2-3 circle passes roller and the tight screw 39 of rope again, then the upper end of steel wire is by in the firm centre bore that is fixed on roller, the other end of steel wire 20 along the outer rim of roller vertically downward, after passing the centre bore of dog screw 42 of interlock card 21, side is changeed is fixed on the cross-drilled hole that tightens screw 43 its termination, tightening screw 43 by rotation makes steel wire tension or loosens, owing to taked this structure, when main shaft spurs steel wire downwards, avoided the slip of steel wire on roller to improve the reliability that pulse coder provides pulse signal thus, add a rubber-like damping cover 37 on roller 32, its effect is when preventing lathe work because vibration makes the moving A that avoided of grating dish dry measure used in former times in the pulse coder 19, the signal disorder that B two group pulse signals provide under critical condition.Owing to taked these measures, thereby guaranteed the numerical control precision.

Claims (2)

1, a kind of vertical brill tapping machine, comprise gearbox, motor, belt gear, high speed shaft, electromagnetic clutch, Bevel Gear Transmission mechanism, main shaft, the worktable lifting device that the turbine worm driving member is arranged, photoimpact encoder and change-over switch, it is characterized in that: between high speed shaft and combined type standard electric magnet clutch, assemble all-gear system; Lower end at main shaft connects nose cone, has in the worktable lifting device and the coaxial leading screw that connects of turbine, and the lifting that leading screw is actively connected on the workbench bottom puts.

2, brill tapping machine according to claim 1 is characterized in that: the all-gear system between high speed shaft and combined type standard electric magnet clutch is made up of pinion, transition gear and gear wheel.

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