CN2240408Y

CN2240408Y - Three-operation semi-automatic tapper

Info

Publication number: CN2240408Y
Application number: CN 95228599
Authority: CN
Inventors: 谢瑞生
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-15
Filing date: 1995-12-15
Publication date: 1996-11-20
Anticipated expiration: 2005-12-15

Abstract

The utility model relates to a three-operation semi-automatic tapping machine; the machine body is provided with a motor and an electric apparatus control box; the upper part is provided with a gear box directly connected with three tapping heads; the left and the right tapping heads are parallel with each other on a same shaft line, and the middle tapping head is vertical between the left and the right tapping heads; the electric motor drives the gear box to reduce speed, the tapping heads have three feeding speeds for processing products, and the tapping heads also have three high-speed retracting motions; during the working time, three tapping cutter frames can process three positions of a product simultaneously. The utility model is especially suitable for carrying out inner and outer threading process on the joints of the pipelines of liquid or gases; the utility model has the advantages of simple structure and high work efficiency.

Description

Three station semi-automatic tapping machines

The utility model relates to a kind of three station semi-automatic tapping machines, is the processing equipment that is specifically designed to the internal and external screw thread of products such as conduit fittings and valve body.

At building industry, water supply, heating, steam supply, the gas, the conveying of liquid of industry, automobile, tractor, engineering machinery and mechanical industry all have hydraulic pressure, pipeline such as pneumatic, thereby the consumption of conduit fittings both related to industry-by-industry, and consumption is very big again.Existing threading apparatus can not adapt to multiple industry, the processing of the screw thread of multiple product, and original general pipe fitting processing unit (plant), and the big consumptive material of volume is many, easy-maintaining not, the manufacturing cost height, power consumption is many.

The purpose of this utility model is to provide a kind of three station semi-automatic tapping machines, and it can be used for the processing to the pipe fitting internal and external screw thread, has remedied the defective of prior art.

The purpose of this utility model is to realize like this.Three station semi-automatic tapping machines, comprise fuselage, drive motors, gearbox, tapping-head, workbench and range controlling mechanism and workpiece clamping mechanism in the structure, characteristics are that gearbox and tapping headstock sealed attachment are one, be arranged in three tapping knife rests on the tapping headstock left and right two parallel and on an axis, middle one vertically between left and right knife rest, the center line of intermediate slide and the intersect vertical axis of left and right knife rest.The gearbox and the tapping headstock are one, and the two has the favorable rigidity driving coupling, and axiality and perpendicularity are accurately arranged, and have saved raw material than conventional art, have dwindled machine volume.

The characteristics of speed change system of the present utility model are to drag main shaft in the gearbox by motor, by two electromagnetic clutch and the two groups of gears on the main shaft, realize positive and negative two kinds of rotations, gear by III axle, IV axle axle head passes to the V axle with the both direction rotatory force, import left and right two tapping-heads, make two tapping first to inward turning, one to outward turning, by the bevel gear of III axle, drive the VII axle with the vertical tapping-head in the middle of the power input.It has changed original technology and has reached three traditional design that tapping-head is synchronous by three bevel pinions of a bevel gear wheel driving, machine driving is in stably always slows down, thereby saved motor power; In addition, all gear is closed in gearbox and the tapping-head support body, the existing good lubricated noise that reduced again.

The utlity model has following advantage: one, than like product energy-conservation about 30%; Two, compact conformation, volume is little, and is in light weight; Three, all transmission system is close is closed in the casing, and good lubricating effect is arranged; Four, stable drive, mechanical noise is low; Five, versatility is good, is convenient to maintenance.

What accompanying drawing 1 provided is structural representation of the present utility model.

What accompanying drawing 2 provided is the variable ratio drive system schematic diagram.

What accompanying drawing 3 provided is the workpiece clamping mechanism schematic diagram.

Accompanying drawing 4 is vertical views of accompanying drawing 3.

Below in conjunction with accompanying drawing the utility model is described further.With reference to accompanying drawing 1, motor 2, water tank 3, material road 4, pallet 5 are housed on the frame 1 of three station semi-automatic tapping machines, the upper back of frame 1 is equipped with gearbox 9, by motor pulley 6, and triangular driving band 7, drive gearbox pulley 8, power is imported gearbox, through the commutation of slowing down, direct outputting rotary power, make three tapping-heads 10 on the tapping headstock obtain rational tapping processing rotary speed and feeding pitch, and the rapid return function.

The structure of the variable ratio drive system of this machine and former reason accompanying drawing 2 provide, gearbox pulley 8 drives transmission main shaft 16, electromagnetic clutch A energising, electromagnetic clutch B, C outage, gear 17 rotates with electromagnetic clutch A, driven wheel 18 rotates II axle 19, drive triple gear 20, can mesh, III axle 25 is rotated with gear 22,23,24, drive bevel gear 26,27 and drive VII axle 28, tapping-head in the middle of gear 33 imports power into.III axle 29 while of driven gear meshing gear 341 again imports power into left tapping-head, gear 24 driven gears 30 make IV axle 31 driven gears 32, import power into right tapping-head by gear 343, make gear train 341,351,342,352,362,343,353,363 drive 371,381,372,382,373,383 respectively under the driving of gear 29,33,32, the tapping main shaft is processed to the workpiece of middle clamping along screw.

Feed distance of this machine and automatic reverse are to pass to worm gear case 11 by gearbox 9, drive Strok mechanism 12, finish by the auxiliary reclay in the electric appliance box on frame right side, as shown in Figure 1.With reference to Fig. 2, gear 342 driven gears 39 drive worm screw 40, making worm gear 41 drive rotating disk 42 rotates, when briquetting 43 depression stroke switches 44, this moment, travel switch made electromagnetic clutch A outage by the auxiliary reclay in the electrical equipment, electromagnetic clutch C moment switches on and makes rotation brake, electromagnetic clutch B energising, electromagnetic clutch C outage, at this moment gear 45 rotates with electromagnetic clutch B, make II principal axis transformation rotation direction by idle wheel 46, gear 47, and improved rotary speed, at this moment each tapping-head extreme gear 361,362,363 drives the tapping main shaft fast along the screw withdrawing.Gear 39 counter-rotating also makes worm screw, worm gear, rotating disk reverse simultaneously, makes briquetting 45 press to travel switch 46, when travel switch 46 is depressed, and electromagnetic clutch B outage, the C energising, the A energising, C is outage simultaneously also, and each gear just changes, and repeats the feed processing action.Triple gear 20 is under the effect of shift fork 21, and when meshing respectively with gear 22,23,24, three kinds of feed velocitys are that per minute 88 changes, per minute 116 changes, per minute kind 160 is changeed, and rapid return is that per minute 117 changes, per minute 165 changes and per minute 228 changes.

The workpiece clamping mechanism of this machine is on workbench 13, and with reference to accompanying drawing 3 and accompanying drawing 4, cylinder 51 is installed in the workbench right side, connects Rocker arm 52, and axle 53, connecting rod 54,49 promote preceding die holder 56 slippage on guide pillar 58 that planker 57 drives on the planker 57.When cylinder 51 stretches out, shake wall 52 reaches, axle 53 rotates and makes connecting rod 54,49 stretch prolongation, and die holder 56 and back die holder 55 coincide before making, and workpiece is clamped.Otherwise can unclamp workpiece.Telescopic 48 can be adjusted the length of connecting rod 49 to adapt to the variation of workpiece size.

Workbench 13 is installed in the different rail top of the pallet 5 of frame front, and a big cylinder 50 is fixed on the frame, and an end connects workbench 13, by external source of the gas, by hand-operated valve 14, air dividing plate 15, workbench can be released, is retracted.Be convenient to the to be installed workpiece of big profile.

Utilize three station semi-automatic tapping machines of the present utility model, processing malleable cast iron pipe fitting and other material maximum machining diameter can reach 50 millimeters.

This machine has three feed velocitys that product is processed, and three rapid return campaigns are arranged, and therefore three tapping knife rests have higher work efficiency simultaneously to three position processing of product during work.

Description of drawings of the present utility model is as follows:

1 fuselage, 2 motor, 3 water tanks, 4 material roads, 5 pallets, 6 motor pulleys, 7 triangular driving bands, 8 gearbox pulleies, 9 gearboxes, the 10 tapping headstocks, 11 Worm gear case, 12 range controlling mechanisms, 13 workbench, 14 hand-operated valves, 15 fens gas Plate, 16 transmission main shafts, A electromagnetic clutch, 17 gears, 18 gears, 19 The II axle, 20 triple gears, 21 shift forks, 22,23,24 gears, 25III Axle, 26,27 bevel gears, the 28VII axle, 29,30 gears, the 31IV axle, 32,33 gears, 341,342,343 duplicate gears, 351,3 52,353,361,362,363 gears, 371,372, 373 tapping main shafts, 381,382,383 screws, 39 gears, 40 Worm screw, 41 worm gears, 42 rotating disks, 43,45 briquettings, 42,44 strokes are opened Close 47 guide rails, 48 telescopics, 49 connecting rods, 50 cylinders, 51 cylinders, 5 2 rocking arms, 53 axles, 54 connecting rods, 55 rear die holders, 56 front die holders, 57 plankers, 58 guide pillars.

Claims

1, a kind of three station semi-automatic tapping machines, comprise fuselage (1), drive motors (2), gearbox (9), tapping-head (10), workbench (13) and range controlling mechanism in the structure, and workpiece clamping mechanism, it is characterized in that gearbox (9) and tapping headstock sealed attachment are one, be arranged in three tapping knife rests on the tapping headstock left and right two parallel and on an axis, middle one vertically between left and right knife rest, the center line of intermediate slide and the intersect vertical axis of left and right knife rest.

2, by the described three station semi-automatic tapping machines of claim 1, it is characterized in that the speed change system in the gearbox (9) comprises motor pulley (6), connect gearbox pulley (8) through belt, driven wheel (17), (18), (20), (22), (23), (24), (26), (27), (30) be assigned to gear (29), (32), (33), drive three groups of gears (341) respectively, (351), (361), (342), (352), (362), (343), (353), (363), drive three tapping main shafts (371) of tapping-head (10), (372), (373).

3, by the described three station semi-automatic tapping machines of claim 1, it is characterized in that workpiece clamping mechanism is positioned on the workbench (13), comprise cylinder (51) drivening rod (54), (49), connecting rod (49) connects planker (57), preceding die holder (56) is arranged on the planker (57), and planker (57) frame is on guide pillar (58).