CN104368883A

CN104368883A - Tapping device

Info

Publication number: CN104368883A
Application number: CN201410612570.6A
Authority: CN
Inventors: 苏伟
Original assignee: Anhui Honglu Steel Structure Group Co Ltd
Current assignee: Anhui Honglu Steel Structure Group Co Ltd
Priority date: 2014-11-04
Filing date: 2014-11-04
Publication date: 2015-02-25

Abstract

The invention discloses a tapping device. The tapping device comprises a rotary body. The rotary body is connected with a screw tap and a supporting rod. The screw tap and the supporting rod stretch reversely from a body of the rotary body and are concentrically arranged. The rotary body and the screw tap are detachably and fixedly connected, and the rotary body and the supporting rod are in running fit. When the tapping device is used, the screw tap is vertically aligned with a hole in a workpiece to be tapped, then, a user holds the supporting rod with one hand so as to stabilize the tapping device and pushes or rotates the rotary body with the other hand so as to allow the rotary body to rotate around the supporting rod, the screw tap is driven to rotate, and then tapping operation is achieved. The fixing performance of the tapping device is high in the tapping process through the supporting rod, deflection of the screw tap is avoided, tapping reliability is guaranteed, manual operation is convenient, and tapping efficiency is effectively improved.

Description

Chasing bar

Technical field

The present invention relates to field of machining, specifically relate to a kind of chasing bar.

Background technology

At present, when tapping operation is carried out to some small diameter bore of workpiece, the electric drill tapping machine that many employings are small-sized or hand tapping spanner, the threading drill bit of electric drill tapping machine is thin and long, and be difficult to accurate assurance to the angle that drill bit enters workpiece during use, it uses flexibility lower, and easily cause broken drill when exerting oneself excessive, and operation inconvenience when using of the hand tapping spanner of routine, inefficiency, and screw tap easily offsets.

Summary of the invention

The object of this invention is to provide a kind of chasing bar being convenient to manual operation, convenient location.

For achieving the above object, the technical solution used in the present invention is: a kind of chasing bar, it is characterized in that: comprise and turning, be connected with screw tap on turning and help bar, described screw tap and help bar on the body of turning oppositely extended and both arrange with core, described turn with screw tap to be that detachable is connected, to turn and help bar for being rotatably assorted.

Owing to adopting above technical scheme, during use, screw tap is vertically aimed at the eyelet treated on tapping workpiece, then a hand of operating personnel grips and helps bar with stable chasing bar, and another hand propelled or rotation are turned around helping bar to rotate, and drive screw tap to rotate like this, thus realize tapping, help bar be arranged so that tapping time this chasing bar self fixed performance strong, not only avoid screw tap to offset, the reliability of guarantee tapping, and facilitate manual operation, effectively improve tapping efficiency.

Accompanying drawing explanation

Fig. 1 structural representation of the present invention;

Fig. 2 cross-sectional schematic of the present invention;

The C portion enlarged drawing of Fig. 3 Fig. 2;

Fig. 4 is the structural representation of turning;

Fig. 5 is the structural representation of body;

Fig. 6 is that the B-B of Fig. 5 is to sectional view;

Fig. 7 is the structural representation of nut.

Detailed description of the invention

A kind of chasing bar, as shown in Figures 1 to 3, comprise and turn 10, turn and to be connected with screw tap 30 on 10 and to help bar 20, described screw tap 30 and help bar 20 from turn 10 body on oppositely extended and both arrange with core, described turning 10 is connected for detachable with screw tap 30, turn 10 and support bar 20 for being rotatably assorted.During use, first screw tap 30 is fixed on and turns on 10, then screw tap 30 is vertically aimed at the eyelet treated on tapping workpiece, a hand of operating personnel grips helps bar 20 with stable chasing bar, another hand propelled or rotation turn 10 around support bar 20 carry out rotating to drive screw tap 30 to rotate, thus realize tapping, help bar 20 be arranged so that tapping time this chasing bar self fixed performance strong, not only avoiding screw tap 30 that skew occurs causes screw tap 30 to fracture, ensure that the reliability of tapping, and owing to helping the firm effect of bar 20, manual operation is turned 10 very convenient, effective raising tapping efficiency.

As further preferred version: described in turn 10 circumferential profile be shaft-like or discoid, as long as support bar 20 is gripped with hand during use, then 10 are turned, 10 the shaft-like manual operation that can facilitate staff is arranged to like this by turning, preferably, described turn 10 circumferential profile in the form of annular discs, be convenient to staff like this and rotate continuously and turn 10.

Further, described turn 10 middle part be provided with bearing 40, the inner ring of described bearing 40 coordinates with helping one end grafting of bar 20, the shaft core direction of bearing 40 with turn 10 rotation time the plane being perpendicular that formed, by the setting of bearing 40 can realize turning 10 with help being rotatably assorted of bar 20, the bearing block 12 of concrete installation rigid bearing 40 both can be arranged in turn 10 inside, also can as shown in figs. 2 to 4, bearing block 12 is arranged in 10 surfaces of turning.

Further, as shown in Fig. 1 ~ 2, described support bar 30 away from turn 10 one end be provided with cross bar 80, help the cross section entirety of bar 20 and cross bar 80 junction T-shaped, in tapping process, screw tap 30 is that an extruding is rotated and produces the action of displacement, will one end of bar 20 be helped to arrange cross bar 80 like this, facilitate staff to help the junction of bar 20 and cross bar 80 with hand clamping, thus increase the stability of chasing bar use.

Further, the opposite side describedly turn on the body of 10, being positioned at bearing 40 is outward extended with projection 11, projection 11 and bearing 40 coaxial core are arranged, described turning 10 is connected by body 50 with screw tap 30, one end of body 50 and projection 11 socket connection, the other end of body 50 and the tail end socket connection of screw tap 30, can consist of to turn the layout of body 50 like this and 10 to be connected with the removable of screw tap 30.

Further, described body 50 comprises straight tube 51 and male-pipe 52, straight tube 51 coordinates with projection 11 grafting, described body 50 comprises straight tube 51 and male-pipe 52, straight tube 51 coordinates with projection 11 grafting, the end of male-pipe 52 arranges 2-4 claw 54 along pipe range direction, claw 54 interval arranges and its periphery wall is cone surface shape, the suspension end diameter of claw 54 is little, large with the conical surface diameter of the end connecting place of male-pipe 52, described male-pipe 52 place is connected with nut 70, nut 70 carries over and is connected with Taper Pipe section 71, the bellmouth of the interior tube chamber of Taper Pipe section 71 and the taper seat adaptation at claw 54 perisporium place, during such installation screw tap 30, first nut 70 is set in from its Taper Pipe section 71 side the tail end place of screw tap 30, then the tail end of screw tap 30 is plugged in male-pipe 52, and rotating nut 70 is to be threaded with male-pipe 52, specifically nut 70 is rotated the taper seat tight abutment to tube chamber in its Taper Pipe section 71 and claw 54 perisporium place, and the stressed generation of claw 54 draws shape deformation in till being formed stable holding to the periphery anchor ring of screw tap 30 tail end, so achieve the effectively fixing of screw tap 30, convenient disassembly when using technique scheme to make to change screw tap 30 or body 50, once one of them parts damages, can change at any time, reduce the use technology cost of chasing bar.

Further last, as shown in Figure 5, the pipe shaft of described straight tube 51 is provided with the circular hole 53 running through tube wall, described circular hole 53 place is provided with fastening bolt 60, the end of fastening bolt 60 forms against coordinating with the outer peripheral face of projection 11, the assembling intensity of turning between projection 11 on 10 and straight tube 51 can be increased like this by fastening bolt 60 fastening, avoid screw tap 30 to shake, thus the reliability location of screw tap 30 when ensureing tapping further.

Claims

1. a chasing bar, it is characterized in that: comprise turn (10), turn and (10) be connected with screw tap (30) and help bar (20), described screw tap (30) and help bar (20) on the body of turn (10) oppositely extended and both arrange with core, described turn (10) are connected for detachable with screw tap (30), turn (10) and help bar (20) for being rotatably assorted.

2. chasing bar according to claim 1, is characterized in that: described in the turn circumferential profile of (10) in the form of annular discs or shaft-like.

3. chasing bar according to claim 1 and 2, it is characterized in that: described in the turn middle part of (10) be provided with bearing (40), the inner ring of described bearing (40) coordinates with helping one end grafting of bar (20), the shaft core direction of bearing (40) and the plane being perpendicular formed when (10) rotate of turning.

4. chasing bar according to claim 3, it is characterized in that: described support bar (30) is provided with cross bar (80) away from the one end of turn (10), help the cross section entirety of bar (30) and cross bar (80) junction T-shaped.

5. chasing bar according to claim 3, it is characterized in that: described in turn on the body of (10), the opposite side that is positioned at bearing (40) is outward extended with projection (11), projection (11) and bearing (40) coaxial core are arranged, described turn (10) are connected by body (50) with screw tap (30), one end of body (50) and projection (11) socket connection, the other end of body (50) and the tail end socket connection of screw tap (30).

6. chasing bar according to claim 5, it is characterized in that: described body (50) comprises straight tube (51) and male-pipe (52), straight tube (51) coordinates with projection (11) grafting, the end of male-pipe (52) arranges 2-4 claw (54) along pipe range direction, claw (54) interval arranges and its periphery wall is cone surface shape, the suspension end diameter of claw (54) is little, large with the conical surface diameter of the end connecting place of male-pipe (52), described male-pipe (52) place is connected with nut (70), nut (70) carries over and is connected with Taper Pipe section (71), the bellmouth of the interior tube chamber of Taper Pipe section (71) and the taper seat adaptation at claw (54) perisporium place.

7. chasing bar according to claim 6, it is characterized in that: the pipe shaft of described straight tube (51) is provided with the circular hole (53) running through tube wall, described circular hole (53) place is provided with fastening bolt (60), and the end of fastening bolt (60) is formed against coordinating with the outer peripheral face of projection (11).