CN2485082Y

CN2485082Y - Threading apparatus

Info

Publication number: CN2485082Y
Application number: CN 01267788
Authority: CN
Inventors: 刘树清
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-28
Filing date: 2001-10-19
Publication date: 2002-04-10
Anticipated expiration: 2011-10-19

Abstract

The utility model relates to a tapping machine which is mainly used for processing full thread in steel tube of different joints with steel structure, mainly solving the problem that screw tap is automatically fell off after tapping and is capable of breaking the chips when in process; the utility model is capable of being produced in batches, so having the advantages of high production rate, low cost, high tolerance quality, long service time of the screw tap, no noise and good economic benefit, the daily profit achieves 800 yuan; and at the same time, the utility model adopts a hydraulic clamping apparatus which has a big clamping force, the steel tube has no deformation, and the external surface has no clamping trace, having a good anticorrosive performance.

Description

A kind of tapping machine

But the utility model relates to particularly chip breaking during logical screw thread in the machined steel pipe fitting of a kind of tapping machine, a kind of tapping machine that processing back screw tap can come off automatically.

Present known steel pipe fitting process equipment mainly is three tapping machines, because screw tap can only be advanced and retreat simultaneously with tapping-head, screw tap tooth anterior angle will be damaged and can not use again but screw tap does not allow reversing again, so existing tapping machine can not be attacked harness cord to the internal thread of steel pipe fitting, add simultaneously and also can't resolve the chip breaking problem man-hour.

The utility model for solve the technical problem that exists in the known technology provide a kind of in the machined steel pipe fitting behind the logical screw thread screw tap can come off voluntarily, but the clamping force of chip breaking in the processing, steel pipe fitting jig is big and steel pipe fitting does not have distortion, the surface does not have a kind of tapping machine that blocks trace.

The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:

Running part: adopt long spur gear, it is fixed on the vertical shaft, and the spur gear that is engaged with is keyed on the tapping bar, and spur gear can be along the axial lifting of long spur gear, and vertical shaft and tapping bar expansion bearing are on the box partition and not in same vertical plane;

The tapping part: it forms the end that the tapping joint that has magnet is fixedly connected on the tapping bar by spur gear, tapping bar, tapping joint, screw tap, steering gear, tapping lifting device, screw tap is inhaled in the tapping joint by magnet, and steering gear is fixed on the other end of tapping bar with bearing and nut and flexibly connects with tapping bar lifting device;

Jig adopts hydraulic chucks, and it is made up of pintle hook lock, piston, protecgulum, overcoat, sealing ring, and pintle hook lock is cone-shaped and is slidingly fitted in piston and the overcoat, piston closes in the middle of protecgulum and overcoat, protecgulum and apply mechanically bolting, perforate on it outward.

The utility model can also adopt following technical measures: screw tap groove cutting-in one crescent shape groove grinds the inclined-plane vertically at screw tap facing place simultaneously.The taper pintle hook lock is a three-clove style in the hydraulic chucks, groove milling vertically in the middle of every lobe inboard.

Advantage and the good effect that the utlity model has are: the steel pipe fitting internal thread can be attacked harness cord, and can produce by batch so productivity ratio height, accuracy of thread height, cost are low, but chip breaking in the processing, processing back screw tap can come off automatically, the clamping force of steel pipe fitting jig is big, steel pipe fitting does not have distortion, surface and does not have the trace of card, labor strength is low.

Description of drawings:

Fig. 1 structural representation of the present utility model.

Fig. 2 is a tapping bar lifting device schematic diagram among Fig. 1.

Fig. 3 is Fig. 1 plug tap schematic diagram.

Fig. 4 is a hydraulic chucks structural representation among Fig. 1.

As Fig. 1-shown in Figure 4:

1-reductor, 2-minor sprocket, 3-chain, 4-hinge wheel, 5-transverse axis, 6-bearing

7-steering gear, 8-bevel gear, 9-large bevel gear, 10-vertical shaft, 11-long spur gear

12-tapping bar, 13-spur gear, 14-tapping joint, 15-dividing plate, 16-pintle hook lock

17-piston, 18-protecgulum, 19-overcoat, 20-casing, 21-tank for coolant

22-pedal, 23-tapping bar promotes support 24-base 25-tapping bar lifting device

26-screw tap, 27-wire netting

Summary of the invention of the present utility model, characteristics and effect exemplify following examples now and conjunction with figs. is described in detail as follows in order further understanding:

Please refer to Fig. 1-Fig. 4 running part of the present utility model is by motor, reductor 1, chain 2,3,4 transmissions, bevel gear 8,9 transmissions, spur gear 11,13 transmissions are formed, hinge wheel 4 and two groups of bevel gear 8 usefulness chains are fixed on the transverse axis 5, transverse axis 5 is bearing on the support of casing 20, large bevel gear 9 and long spur gear 11 usefulness chains are fixed on the vertical shaft 10, spur gear 13 is passed in motion, it is fixed on the tapping bar 12 with chain again, tapping bar 12 rotates with spur gear 13, tapping bar 12 and vertical shaft 10 are bearing on the dividing plate 15 of casing 20 simultaneously but they are not in same vertical plane, end at tapping bar 12 is fixed with interior carry magnet, the tapping joint 14 of interior opening square hole is put screw tap 26 in it, screw tap 26 afterbodys are to hold in the square toes insertion screw tap joint 14 and by the magnet suction, the other end of tapping bar 12 with nut stationary deflector 7 it can be by bearing around 12 rotations of tapping bar, steering gear 7 upper ends flexibly connect tapping bar lifting device 25, the tapping bar that this device 25 is bearing on the base 24 promotes on the support 23, one end band pedal 22, during tapping, push down on the pedal 22, tapping bar 12 serves as that guiding moves downward along casing 20 upper spacers 15 while rotating with long spur gear 11, screw tap 26 is in groove cutting-in one crescent as shown in Figure 3, and ground the inclined-plane vertically, thereby solved in the tapping process chip breaking and gone out the bits problem at screw tap 26 facing places.Utilize work piece to withstand screw tap 26 completion of processing screw taps 26 and work piece during tapping and come off automatically and fall on the wire netting of tiltedly putting in the tank for coolant 21 27 and roll to a side and take out, at this moment, lift 22 tapping bars of pedal 12 and rise.

Processed steel pipe fitting tightens with hydraulic chucks.Jig is made up of pintle hook lock 16, piston 17, protecgulum 18, overcoat 19 as shown in Figure 4, pintle hook lock 16 is a cone, it is processed into three lobes by integral body, side milling chain groove is to guarantee big clamping force in every lobe, protecgulum 18 and overcoat 19 usefulness bolting promote piston 17 upwards and chucking pintle hook lock 16 when the feed liquor body of B hole, promotion piston 17 is downward during the feed liquor body of completion of processing A hole unclamps pintle hook lock 16 then steel pipe is released and fall automatically.

Claims

1, a kind of tapping machine it form by running part, tapping part and jig, it is characterized in that:

1. running part: adopt long spur gear, it is fixed on the vertical shaft, and the spur gear that is engaged with is keyed on the tapping bar, and spur gear can be along the axial lifting of long spur gear, and vertical shaft and tapping bar expansion bearing are on the box partition and not in same vertical plane;

2. tapping part: it forms the end that the tapping joint that has magnet is fixedly connected on the tapping bar by spur gear, tapping bar, tapping joint, screw tap, steering gear, tapping lifting device, screw tap is inhaled in the tapping joint by magnet,, steering gear is fixed on the other end of tapping bar with bearing and nut and flexibly connects with tapping bar lifting device;

3. jig adopts hydraulic chucks it is made up of pintle hook lock, piston, protecgulum, overcoat, sealing ring, and pintle hook lock is cone-shaped and is slidingly fitted in piston and the overcoat, piston closes in the middle of protecgulum and overcoat, protecgulum and apply mechanically bolting, perforate on it outward.

2, a kind of tapping machine according to claim 1 is characterized in that: screw tap groove cutting-in one crescent shape groove grinds the inclined-plane vertically at screw tap facing place simultaneously.

3, a kind of tapping machine according to claim 1 is characterized in that: the taper pintle hook lock is a three-clove style in the hydraulic chucks, groove milling vertically in the middle of every lobe inboard.