CN2089390U

CN2089390U - Dual-purpose wrench for tap and die of screw

Info

Publication number: CN2089390U
Application number: CN 90215075
Authority: CN
Inventors: 王华强
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-28
Filing date: 1990-10-28
Publication date: 1991-11-27

Abstract

The utility model relates to a hand tool for thread cutting. The dual-purpose wrench for tap and die is composed of an existing die wrench, taps with different specifications, a clamping head with a vertical angle groove which is arranged, a spring in the spring hole of the clamping head, a tap movable clamping head which is composed of two pins which makes the two clamping heads connected. The utility model has the advantages of simple structure, low cost, convenient operation and wide purposes.

Description

Dual-purpose wrench for tap and die of screw

The utility model relates to a kind of screw thread cutting hand tools, and particularly the screw tap clamping device in this instrument is applicable to and the supporting use of existing die-stock.

Existing screw tap clamp generally adopt the special screw tap spanner or with the supporting screw tap fixing hole sleeve-board of die-stock, the former purposes is single, the latter need be equipped with a plurality of screw tap orifice plate covers, uses endoporus yielding for a long time, is difficult to grip the screw tap square toes; Chinese patent CN87210937 discloses a kind of screw tap silk monkey spanner of pulling, it is made up of spanner tongue, screw rod, axle, trigger piece and tooth plate, be processed with spacing equates and big or small nine square holes that are used for clamping screw tap square toes that have nothing in common with each other at the middle part of trigger piece, this patent still has above-mentioned defective, and inconvenient operation when using, screw tap is subjected to force unbalance, influences the tapping quality.

The purpose of the utility model is intended to overcome above-mentioned deficiency of the prior art, provide a kind of simple in structure, can be with the supporting use of die-stock, have the screw tap screw die combination wrenches of Adjustable tap chuck.

Technical solution of the present utility model is a kind of screw tap screw die combination wrenches, comprise screw die cover 2, symmetry is positioned at the handle 1,13 of both sides on the screw die cover center line, symmetry is arranged in the trip bolt 3,14 of screw on the screw die cover vertical center line, flange 10 along hole wall week is arranged at screw die cover endoporus bottom, its feature part is also to comprise the

chuck

4,5 by trough with straight angle 9,18 is arranged, spring 6,15 in the chuck inner spring hole, the screw tap active chuck that the pin 7,16 of connection two chucks is formed in the spring 6,15; Two spring eyes, two trough with straight angle, two chucks are symmetrical in center line respectively, and a boss 11 is arranged at the chuck bottom, the screw tap active chuck, can be inserted in the screw die cover 2.

Chuck 4 in the utility model technical solution and 5 dual-sides have 90 ° concave edge 19,20 and the

chimb

21,22 of being less than or equal to the center line symmetry respectively.

There is a chimb 12 in chuck boss 11 outsides in the utility model technical solution.

The outside has the fastening locating hole 8,17 of a spill respectively on the center line of the

chuck

4,5 in the utility model technical solution.

The utility model has following characteristics compared to existing technology:

1, the screw tap active chuck only is made up of chuck, spring and pin, and structure is very simple, handling ease;

2, the screw tap that screw tap active chuck can a plurality of different sizes of clamping has been saved material, has reduced cost, and clamping is firm, the influence of not being out of shape, long service life;

3, die-stock is equipped with a screw tap active chuck and a screw tap, and instant die-stock and windeisen be in one, and one-object-many-purposes is easy to use.

Fig. 1 is the utility model example structure schematic diagram,

Fig. 2 is the utility model embodiment screw tap active chuck structural representation,

Fig. 3 is the left TV structure schematic diagram of Fig. 2,

Fig. 4 is the A-A sectional structure schematic diagram of Fig. 1.

Among the figure: 1,13～handle, 2～screw die cover, 3,14～trip bolt, 4,5～chuck, 6,15～spring, 7,16～pin, 8,17～fastening locating hole, 9,18～trough with straight angle, 10～flange, 11～boss, 12～chimb, 19,20～concave edge, 21,22～chimb.

Below in conjunction with accompanying drawing the utility model is further described:

A kind of screw tap screw die combination wrenches, made by metal material, comprise circular slab facing 2, symmetry is positioned at the handle 1,13 that screw die overlaps both sides on 2 center lines, symmetry is arranged in the trip bolt 3,14 that screw die overlaps screw on 2 vertical center lines, and screw die overlaps 2 endoporus bottoms flange 10 along hole wall week.Also comprise by the

chuck

4,5 that trough with straight angle 9,18 is arranged the spring 6,15 in the chuck inner spring hole, the screw tap active chuck that the pin 7,16 of connection two chucks is formed in the spring 6,15; Pin is connected to an integral body with two chucks, and the screw tap of the caliber size clamping different size that two trough with straight angle form is regulated in compression by spring and elongation; The screw tap stress balance was even when two spring eyes, two trough with straight angle, two chucks were symmetrical in center line with the assurance use respectively; The chuck bottom has with screw die overlaps the boss 11 that 2 endoporus bottom flanges 10 match; The screw tap active chuck can be inserted in the screw die cover 2, and is firmly stable for guaranteeing its fit, in chuck boss 11 arranged outside one chimb 12, may be stuck in aperture flange 10 outsides in the screw die cover 2; For guaranteeing guiding accurately,

chuck

4 and 5 dual-sides have with the center line symmetry respectively, can intermeshingly be less than or equal to 90 ° concave edge 19,20 and

chimb

21,22; The fastening locating hole 8,17 of one spill is arranged, for trip bolt 3,14 fastening location respectively on the center line of chuck 4,5.A die-stock is equipped with the screw tap of a screw tap active chuck and different size, promptly constitutes complete screw tap screw die combination wrenches.

Making windeisen uses, when being inserted in the screw tap active chuck in the screw die cover 2, the contraction that is stressed of chuck bottom and chuck inner spring, the chuck bottom just enters screw die and overlaps in 2 holes, spring is upheld again, the chuck chimb just hangs over screw die and overlaps 2 bottom hole outward flanges, the chuck difficult drop-off, fastening locating hole 8,17 over against trip bolt 3,14, screw tap is put into the opening that two trough with straight angle form, and symmetry screws 2 trip bolts 3,14, the extension of chuck inner spring and contraction, just but the square toes of the screw tap of several different sizes of clamping or similar screw tap revolve tool, just can carry out operations such as tapping then.Finish using, the screw tap active chuck just can be taken out leggiero in the chuck bottom, a top as long as finger is exerted oneself.

Screw die cover in the utility model is not limited to circle, also can be square, regular hexagon or other shape, and screw tap active chuck profile then adopts shape corresponding with it.

Claims

1, a kind of screw tap screw die combination wrenches, comprise screw die cover 2, symmetry is positioned at the handle 1,13 of both sides on the screw die cover center line, symmetry is arranged in the trip bolt 3,14 of screw on the screw die cover vertical center line, flange 10 along hole wall week is arranged at screw die cover endoporus bottom, it is characterized in that also comprising chuck 4,5, the spring 6,15 in the chuck inner spring hole, the screw tap active chuck that the pin 7,16 of connection two chucks is formed in the spring 6,15 by trough with straight angle 9.18 is arranged; Two spring eyes, two trough with straight angle, two chucks are symmetrical in center line respectively, and a boss 11 is arranged at the chuck bottom, and the screw tap active chuck can be inserted in the screw die cover 2.

2,, it is characterized in that chuck 4 and 5 dual-sides have 90 ° concave edge 19,20 and the chimb 21,22 of being less than or equal to the center line symmetry respectively by the described screw tap screw die of claim 1 combination wrenches.

3, by claim 1 or 2 described screw tap screw die combination wrenches, it is characterized in that there is a chimb 12 in chuck boss 11 outsides.

4,, it is characterized in that the outside has the fastening locating hole 8,17 of a spill respectively on chuck 4.5 center lines by claim 1 or 2 described screw tap screw die combination wrenches.

5,, it is characterized in that the outside has the fastening locating hole 8,17 of a spill respectively on chuck 4,5 center lines by the described screw tap screw die of claim 3 combination wrenches.