CN2471462Y

CN2471462Y - Threading apparatus

Info

Publication number: CN2471462Y
Application number: CN 01238605
Authority: CN
Inventors: 黎宁生
Original assignee: Individual
Current assignee: WENZHOU ZHONGCHENG BUILDING GROUP CO Ltd
Priority date: 2001-03-28
Filing date: 2001-03-28
Publication date: 2002-01-16
Anticipated expiration: 2011-03-28

Abstract

The utility model relates to a nut-tapping machine, comprising a framework, a locating guide column, a drive mechanism, a main shaft, a turret, a grip disc and a support, wherein a turrest is positioned on both ends of the spindle respectively; the grip disc is positioned on both ends of the locating guide column. The production efficiency of the nut-tapping machine is nearly doubled compared with the prior art.

Description

Threading apparatus

The utility model relates to a kind of Threading apparatus, especially utilizes screw die to twist the Threading apparatus of spiral shell.

Present Threading apparatus all has only a chuck dish and rotary head, therefore when production and processing, after can only and unloading in the complete completion of processing of previous workpiece, just can carry out the clamping and the processing of next workpiece, and production efficiency is not high.

The purpose of this utility model is to provide a kind of production efficiency higher Threading apparatus for overcoming above-mentioned the deficiencies in the prior art.

For achieving the above object, the technical solution adopted in the utility model is:

Adopted the Threading apparatus of said structure, owing to be equipped with rotary head at the two ends of main shaft, the positioning track two ends are equipped with the chuck dish, therefore when a rotary head is twisted spiral shell to workpiece on one side, another rotary head just is to withdraw from behind the strand spiral shell of finishing another workpiece, can change another workpiece this moment and prepare next strand spiral shell operation, also twist spiral shell like this in the process that withdraws from of common Threading apparatus, efficient has improved nearly one times.

The utility model is further described and provides embodiment below in conjunction with accompanying drawing.

Fig. 1 is the example structure front elevational schematic;

Fig. 2 is the example structure schematic side view.

As shown in Figure 1, this Threading apparatus still comprises frame 9, be fixed with two parallel positioning guide column 3 on the frame 9, the parallel tooth bar 12 that is provided with in the middle of two positioning guide column 3, be fixed with reduction box 10 in frame 9 centre positions, be provided with the change-speed gearing group in the reduction box 10, the change-speed gearing group is made up of double crosslinking sliding gear 13 and duplex fixed gear 14, double crosslinking sliding gear 13 is arranged on the driving shaft 15 movingly, duplex fixed gear 14 is fixedly installed on the driven shaft 17, also being provided with one section worm screw 7 on the driven shaft 17 cooperates with worm gear 8, worm gear 8 endoporus are joined output main shaft 1, main shaft 1 two ends extend outside the reduction box 10, and two ends respectively are fixed with rotary head 2, driving shaft 15 1 ends extend outside the reduction box 10, and connect with the fixing connection of belt pulley 18, also be provided with gear change hand lever 6 and shift fork 16 on the reduction box 10, the kind of drive of main shaft 1 also can be that belt pulley or gear mode are carried out transmission, chuck dish 4 on positioning guide column 3 two ends is fixed on the chuck support 5, chuck support 5 bottoms be provided with two with positioning guide column 3 guide hole movingly, chuck support 5 can be along positioning guide column 3 front and back slippages by guide hole, certainly the front and back slippage of chuck support 5 also can be adopted oat tail groove structure, chuck support 5 bottoms also are provided with two handwheel axle sleeves 19, wherein sheathed movingly with the hand wheel shaft 20 that handwheel 11 is fixedly connected, on the position of corresponding tooth bar 12 on the hand wheel shaft 20, be provided with shake the hand gear 21 and tooth bar 12 engagements.

During work, motor 22 rotates by 18 rotations of V belt 23 drive belt pulleys power is passed in main shaft 1 and the rotary head 2 through reduction box 10, on chuck dish 4, load onto workpiece, shaking handwheel 11 drives and exercises the screw die 23 that is installed in the rotary head 2 before the chuck dishes 4 and bite work and just can form auto-feed, workpiece on the other end chuck dish promptly is in the process of withdrawing from, can change another workpiece then and prepare processing, gear set on the machine can be selected proper speed according to the processing request of different workpieces.

Claims

1, a kind of Threading apparatus, comprise frame, transmission mechanism, tooth bar, positioning guide column, feeding handwheel, main shaft, rotary head and chuck dish and support, rotary head is fixed on main shaft and rotates with main shaft, it is characterized in that: described main shaft (1) two ends all are fixed with rotary head (2), on the position between last two rotary heads of main shaft (1) (2), be provided with drive disk assembly, respectively be provided with chuck dish (4) and chuck support (5) at positioning guide column (3) two ends.

2, Threading apparatus according to claim 1, described transmission mechanism is made of belt pulley (18) reduction box (10), be provided with the gear that gear change hand lever (6), shift fork (16) and change-speed gearing group and screw rod (7) are formed in the reduction box (10), the described drive disk assembly that main shaft (1) center fixed is provided with is made up of worm gear (8) and is cooperated with worm screw (7).