CN201049401Y

CN201049401Y - Automatic cutter feeding device for drill machine

Info

Publication number: CN201049401Y
Application number: CNU2007201094459U
Authority: CN
Inventors: 廖竹霖
Original assignee: HANGZHOU BAKER MACHINE CO Ltd
Current assignee: HANGZHOU BAKER MACHINE CO Ltd
Priority date: 2007-05-18
Filing date: 2007-05-18
Publication date: 2008-04-23
Anticipated expiration: 2017-05-18

Abstract

An automatic feed gear of drill press achieves stepless speed regulating in feeding by using oil pressure as power and comprises a nose, a belt pulley seat with a spline set and a belt transmission device which are arranged on the top of the nose, a spindle which is driven to rotate by the belt transmission device and a mechanism controlling the feed operating stroke; the utility model is characterized in that an oil cylinder with a flow regulating valve and a guide pole are arranged on the nose, wherein, the piston of the oil cylinder is connected with the spindle into a whole through a connecting plate; the connecting plate is also connected with the guide pole through a pylome loop arranged on the connecting plate; the mechanism controlling the feed operating stroke comprises two photoelectric inductive switches arranged on the nose, a stroke regulating stem arranged on the connecting plate and a locating block fastened on the stroke regulating stem, thereby solving the problems that the prior automatic feed gear of drill press can not achieve stepless feed speed regulating and has unstable nose-lifting operation in the drilling process, poor precision of drilling depth, large mechanical abrasion, short life-span, etc.

Description

The drilling machine automatic feeder

Technical field

The utility model relates to a kind of feed arrangement of drilling machine, and particularly a kind of is the drilling machine automatic feeder that power is realized the speed governing of the feed section of nothing with the oil pressure.

Background technology

As everyone knows, during drilling machine work, bore the rotation realization cutting of cutter, finish feed by moving down of main shaft again by main shaft; The rotation of main shaft is to realize by the belt gear that is connected with motor, and moving up and down of main shaft is to realize by the mechanical type automatic feeder.Existing drilling machine automatic feeder, its structure can be seen from Fig. 6, it is included in belt gear A, belt reduction gearing mechanism B, first-stage worm gear worm gear box C, Dou gear reduction D, second-stage worm gear worm gear box E and the pinion and rack F that installs on the head 1, and belt gear A is connected with motor 8.In the drilling process, belt gear A imports power and motion, main shaft into from the output shaft of motor 8 and drives and bore the cutter rotation, and belt gear A makes main shaft finish downward feed campaign by belt reduction gearing mechanism B, first-stage worm gear worm gear box C, Dou gear reduction D, second-stage worm gear worm gear box E and pinion and rack F successively again or the withdrawing that makes progress moves.Existing this mechanical drilling machine automatic feeder also has following shortcoming: 1) its feed velocity can only be with transposing belt reduction gearing mechanism B middle belt pulley B ₁Diameter change, this transposing is not only comparatively time-consuming, bothersome, but also because of diameter pulley can only the section of having variation can only realize the section of the having adjusting of main shaft feed; Belt pulley B for example ₁Diameter four kinds of specifications are arranged, then adjustable feed velocity can only be four sections; The speed governing of this limited hop count of feed can not be satisfied the selection of people to the feed optimum speed; 2) its driving-chain is long, part is many, so manufacturing cost is higher, poor rigidity, borehole accuracy are low; 3) its used two cover turbine and worm decelerator, not only engaged transmission efficient is low, power consumption is big, but also because of its quick abrasion not durable in use.

Application number is 02280701.2 Chinese patent " hydraulic pressure automatic drilling machine ", and its rocking arm is installed an oil cylinder by splined shaft, promotes the feed that drill bit is realized drilling machine by oil cylinder piston.Though this patent can reduce noise, also have following problem: 1) its problem that can occur lifting on the head in the process of drilling downwards, so the precision of its drilling can not guarantee, work not too reliable, even also is difficult to downfeed; 2) it is the same with the drilling machine automatic feeder of above-mentioned prior mechanical, can not realize the no section speed governing of autofeed.

Summary of the invention

The utility model is to overcome existing shortcoming in the above-mentioned prior art, provide a kind of and can not have the drilling machine automatic feeder that section is regulated feed velocity, and make it have good rigidity, borehole accuracy height, and simple and reasonable, required part is few, can be durable in use etc. characteristics.

The utility model drilling machine automatic feeder, the belt wheel seat of the wounded in the battle key group that it comprises head, be equipped with at the head top and belt drive unit, by the main shaft of belt drive unit driven rotary, and the mechanism of control feed impulse stroke; It is characterized in that: the oil cylinder and the guide pillar of band flow control valve are housed on its head, and wherein the piston of oil cylinder is connected one by gusset piece with main shaft, and gusset piece also is connected on the guide pillar by the through hole kink that has on it; The mechanism of its control feed impulse stroke contains two photoelectric sensor switch being installed on the head, is installed in the stroke regulating lever on the gusset piece, and is fastened on the locating piece on the stroke regulating lever.

The quantity of above-mentioned guide rod preferably two.

The beneficial effects of the utility model are: 1) compare with the drilling machine automatic feeder and the Chinese patent " hydraulic pressure automatic drilling machine " of prior mechanical, the utility model can be realized the no section adjusting of feed velocity, thereby can finish drilling with the feed velocity of the best, and precision is good; 2) since the gusset piece kink on guide pillar, so gusset piece slides along guide rod in main axle moving, thereby support, the rigidity strengthened the main shaft cutting movement improve, and can not only avoid lifting on the head, drilling process is reliable, and drilling depth is accurate, generally can reach ± 0.05mm; 3) the utility model also can make that the idle running of feed is returned rapidly by idle running returning quickly mechanism, the productivity ratio of drilling machine improves; 4) simple and reasonable, the related parts of the utility model drilling machine automatic feeder are few, and less, the daily maintenance capacity of mechanical wear is little, service life is longer.

Description of drawings

The drilling machine front view of the band the utility model drilling machine automatic feeder when Fig. 1 is the head half section;

Fig. 2 is the front view of the utility model drilling machine automatic feeder;

Fig. 3 is that A among Fig. 2 is to view;

Fig. 4 and Fig. 5 are that idle running returning quickly mechanism 12 is at the locational left view of Fig. 2; Wherein Fig. 4 is that drilling process finishes, the state diagram of the idle running returning quickly mechanism when main shaft is prepared upwards to return by low level; Fig. 5 is the state diagram of the idle running returning quickly mechanism of main shaft when being positioned at a high position, main shaft and working downward;

Fig. 6 is the structure diagram of the drilling machine automatic feeder of existing machinery formula.

Label declaration among the figure:

The 1-head; The 2-main shaft; The belt wheel seat of the wounded in the battle key group of 3-; The 4-belt drive unit; The 5-oil cylinder; The 5a-piston; The 6-gusset piece; The 7-guide pillar; The 8-motor; The 9-flow control valve; The 9a-adjusting knob; The 10-photoelectric sensor switch; The 11-stroke regulating lever; The 11a-locating piece; 12-idle running returning quickly mechanism; 12a-idle running adjusting rod; The 12b-block; The 13-workbench; The 14-oil supply system; The 15-column; The 16-linear bearing; The A-belt gear; B-belt reduction gearing mechanism; C-first-stage worm gear worm gear box; D-Dou gear reduction; E-second-stage worm gear worm gear box; The F-pinion and rack.

The specific embodiment

Present embodiment drilling machine automatic feeder, its structure can be seen from Fig. 1～Fig. 3, the belt wheel seat 3 of the wounded in the battle key group that it comprises head 1, be equipped with at the head top and belt drive unit 4, by the main shaft 2 of belt drive unit 4 driven rotary, and the mechanism of control feed impulse stroke; The oil cylinder 5 and the guide pillar 7 of band flow control valve 9 wherein are housed on the head 1, and the piston 5a of oil cylinder 5 is connected as a single entity by gusset piece 6 and main shaft 2, and gusset piece 6 also is connected on the guide pillar 7, can slides on guide pillar by the through hole kink that has on it; The mechanism of control feed impulse stroke can see from Fig. 2 and Fig. 3, and it contains two photoelectric sensor switch 10 being installed on the head 1, is installed in the stroke regulating lever 11 on the gusset piece 6, and is fastened on two locating piece 11a on the trip adjusting rod.When the locating piece of stroke regulating lever below moved to the photoelectric sensor switch of head upper, then main shaft was in the high position (being the original position of drilling) of impulse stroke, otherwise is the low level (being the final position of drilling) of impulse stroke.

Two above-mentioned locating piece 11a can be fixed on the stroke regulating lever 11 by trip bolt, with convenient the height and position of locating piece 11a are regulated, thereby are realized any adjusting of feed position.

Present embodiment drilling machine automatic feeder is adjusted the height of workbench 13 on column 15 earlier when drilling machine is worked, so that the brill cutter that is fastened on the main shaft can be to workpiece drilling (do not represent workpiece among the figure and bore cutter); Starter motor 8 and oil supply system 14 then, at this moment make main shaft 2 rotation by the belt drive unit 4 on the belt wheel seat 3 of wounded in the battle key group, promptly drive main shaft 2 downfeed, workpiece is carried out drilling with the piston 5a of oil cylinder 5 with the gusset piece 6 of bolting one simultaneously.In the process of drilling downwards, the interlock plate 6 that drives main shaft 2 also slides on guide pillar 7 simultaneously, thus active balance the rigidity of the cutting force that makes progress, enhancing main shaft, make main shaft reliable in drilling process, thereby the precision of drilling depth can reach ± 0.05mm.Also can contrast among Fig. 2 the flow scale line above the knob 9a and directly dial and change knob 9a the feed velocity section of nothing is regulated when drilling, this adjusting not only makes things convenient for but also can make workpiece finish drilling under the feed velocity of the best.In drilling process, impulse stroke or idle running that two locating piece 11a on the stroke regulating lever 11 that moves with main shaft and two photoelectric sensor switch 10 on the head 1 cooperatively interacted, controlled main shaft are returned.

Block 12b in the idle running returning quickly mechanism 12 can be fastened on the idle running adjusting rod 12a by screw, with convenient adjusting to idle running return speed.

Among the above embodiment, oil cylinder 5 is arranged in the head 1, is the drilling machine automatic feeder of built-in oil cylinder; As bigger because of oil cylinder in large-scale drilling machine, for the purpose of reducing head, also oil cylinder can be arranged on the head outside, be the drilling machine automatic feeder of external ram, the gusset piece of this moment is also along with extending to the head outside, and other structure in the device is identical with structure in the present embodiment.

Also can have linear bearing 16 on the above-mentioned guide pillar 7 so that the resistance of taxing of gusset piece on guide pillar reduces greatly, gusset piece slide more smooth and easy.

Claims

1. drilling machine automatic feeder, the belt wheel seat (3) of the wounded in the battle key group that it comprises head (1), be equipped with at the head top and belt drive unit (4), by the main shaft (2) of belt drive unit driven rotary, and the mechanism of control feed impulse stroke; It is characterized in that: oil cylinder (5) and guide pillar (7) that band flow control valve (9) is housed on its head (1), wherein the piston (5a) of oil cylinder (5) is connected one by gusset piece (6) with main shaft (2), and gusset piece (6) also is connected on the guide pillar (7) by the through hole kink that has on it; The mechanism of its control feed impulse stroke contains two photoelectric sensor switch (10) of being installed on the head (1), is installed in the stroke regulating lever (11) on the gusset piece (6), and is fastened on the locating piece (11a) on the stroke regulating lever.

2. drilling machine automatic feeder according to claim 1 is characterized in that: the quantity of said guide rod (7) is two.