CN213998107U

CN213998107U - Extrusion screw tap with positioning depth assembly

Info

Publication number: CN213998107U
Application number: CN202023028944.XU
Authority: CN
Inventors: 恽华林
Original assignee: Jumei Changzhou Tools Co ltd
Current assignee: Jumei Changzhou Tools Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-08-20
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses an extrusion screw tap with depth of location subassembly, including connecting rod, connection curved surface, minor axis, screw cone portion, screw cone head, locating hole, locating pin, recess, screw cone sword, screw tap base member, little slot, wearing layer, composite coating and location elongated slot. Compared with the prior art, the utility model discloses possess following beneficial effect: this extrusion screw tap with depth of location subassembly, through setting up the locating pin, locating hole and recess, further constitute the depth of location subassembly, make the extrusion screw tap can more accurate location, make the work piece that the screw tap processed out more practical, it is effective, through wearing layer and composite coating, make the screw tap become more wear-resisting practical, the little slot sets to no thread crest simultaneously, 200 ~ 600 mu m's safe distance apart from the thread crest, can guarantee thread strength, can not make it take place to destroy in extrusion process, the screw tap can effectively reduce the coefficient of friction and the moment of torsion among the screw thread extrusion process simultaneously, reduce the adhesive wear, improve the screw tap life-span.

Description

Extrusion screw tap with positioning depth assembly

Technical Field

The utility model relates to a screw tap device specifically is an extrusion screw tap with depth of positioning subassembly.

Background

Generally, two or three screw taps are called head taps. Two attacks and three attacks, usually only two. The tap material is typically an alloy tool steel or a carbon tool steel. And the tail part is provided with a square tenon. The cutting part of the head tap grinds 6 edges, and the cutting part of the second tap grinds two edges. The special wrench is generally used for cutting, but the existing screw tap is easy to be clamped in a part due to fuzzy positioning when in use, and if the existing screw tap is frequently clamped, the screw tap is easy to wear, so that the production cost is improved, and the production efficiency is reduced.

Accordingly, to address these issues, a press tap with a set depth assembly is provided.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide an extrusion tap with a depth of positioning assembly for solving the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the extrusion screw tap with the positioning depth assembly comprises a connecting rod and a screw tap part, wherein a connecting curved surface is arranged at the front end of the connecting rod, a short shaft is arranged at the front end of the connecting curved surface, a positioning pin is arranged behind the connecting rod, a positioning long groove is arranged in the middle of the positioning pin, a groove is formed in the circumference of the connecting rod, and a screw taper part is arranged at the front end of the short shaft;

the thread taper structure is characterized in that a thread taper head is arranged at the front end of the thread taper portion, a positioning hole is formed in the front end of the thread taper head, a thread tap base body is arranged on the thread taper portion, thread taper blades are arranged on the periphery of the thread tap base body, micro grooves are formed in the edges of the thread taper blades, and a wear-resistant layer and a composite coating are arranged on the surface of the thread taper portion.

Preferably, the front end face of the screw tap head is provided with a positioning hole, and the rear end of the connecting rod is provided with a positioning pin with a positioning elongated slot.

Preferably, a micro groove is arranged between the two screw cone blades, and the micro groove is of a V-shaped structure.

Preferably, the peripheral edge of the tap base body is provided with a tap edge, and the tap base body is made of high-speed steel.

Preferably, a connecting curved surface is arranged between the connecting rod and the short shaft, and a groove is formed in the tail end of the connecting rod.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this extrusion screw tap with positioning depth subassembly through setting up locating pin, locating hole and recess, further constitutes the positioning depth subassembly for extrusion screw tap can more accurate location, makes the work piece that the screw tap processed out more practical, effective.

2. This extrusion screw tap with depth of location subassembly through wearing layer and composite coating for the screw tap becomes more wear-resisting practicality, and the little slot sets to the crest of a tooth, apart from the safe distance of crest 200 ~ 600 mu m simultaneously, can guarantee screw thread intensity, can not make it take place to destroy at extrusion in-process, and the screw tap can effectively reduce the coefficient of friction and the moment of torsion of screw extrusion in-process simultaneously, reduces adhesive wear, improves the screw tap life-span.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the tap head of the present invention;

in the figure: 1. a connecting rod; 2. connecting the curved surfaces; 3. a minor axis; 4. a threaded section; 5. a tap head; 6. positioning holes; 7. positioning pins; 8. a groove; 9. a tap edge; 10. a tap base; 11. micro grooves; 12. a wear layer; 13. a composite coating; 14. and a bit slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, an extrusion tap with a depth positioning assembly includes a connecting rod 1 and a tap portion 4, a connecting curved surface 2 is disposed at a front end of the connecting rod 1, a positioning hole 6 is disposed on a front end surface of the tap head 5, a positioning pin 7 having a positioning long groove 14 is disposed at a rear end of the connecting rod 1, a short shaft 3 is disposed at a front end of the connecting curved surface 2, a positioning pin 7 is disposed at a rear surface of the connecting rod 1, a positioning long groove 14 is disposed in a middle of the positioning pin 7, a micro groove 11 is disposed between two tap blades 9, the micro groove 11 is a V-shaped structure, a groove 8 is disposed on a circumference of the connecting rod 1, a tap portion 4 is disposed at a front end of the short shaft 3, the tap blades 9 are disposed at a peripheral edge of the tap base 10, the tap base 10 is made of high-speed steel, the tap portion 4 is disposed at a front end of the tap portion 4, the utility model discloses a tap, including screw tap head 5, screw tap base member 10, connecting rod 1 and minor axis 3, the front end of screw tap head 5 is provided with locating hole 6, be provided with screw tap base member 10 on the screw tap portion 4, the periphery of screw tap base member 10 is provided with screw tap sword 9, be provided with between connecting rod 1 and the minor axis 3 and connect curved surface 2, the end of connecting rod 1 is provided with recess 8, the edge of screw tap sword 9 is provided with little slot 11, be provided with wearing layer 12 and composite coating 13 on the surface of screw tap portion 4.

The working principle is as follows: when the extrusion screw tap with the depth positioning assembly is used, the positioning pin 7 is firstly fixed on a machine, secondly, secondary and tertiary positioning is realized by the groove 8 and the positioning hole 6, so that the depth of the extrusion screw tap is positioned, and finally, the screw tap is fixed, and the extrusion screw tap with the depth positioning assembly can be normally used.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an extrusion tap with depth of setting subassembly, includes connecting rod (1) and screwed portion (4), its characterized in that: a connecting curved surface (2) is arranged at the front end of the connecting rod (1), a short shaft (3) is arranged at the front end of the connecting curved surface (2), a positioning pin (7) is arranged behind the connecting rod (1), a positioning long groove (14) is arranged in the middle of the positioning pin (7), a groove (8) is arranged on the circumference of the connecting rod (1), and a threaded cone part (4) is arranged at the front end of the short shaft (3);

the thread cutting tool is characterized in that a thread cone head (5) is arranged at the front end of the thread cone part (4), a positioning hole (6) is formed in the front end of the thread cone head (5), a thread cone base body (10) is arranged on the thread cone part (4), thread cone blades (9) are arranged on the periphery of the thread cone base body (10), micro grooves (11) are formed in the edges of the thread cone blades (9), and a wear-resistant layer (12) and a composite coating (13) are arranged on the surface of the thread cone part (4).

2. The extrusion tap according to claim 1, wherein: the front end face of the screw tap head (5) is provided with a positioning hole (6), and the rear end of the connecting rod (1) is provided with a positioning pin (7) with a positioning long groove (14).

3. The extrusion tap according to claim 1, wherein: a micro groove (11) is formed between the two screw cone blades (9), and the micro groove (11) is of a V-shaped structure.

4. The extrusion tap according to claim 1, wherein: the thread tap is characterized in that a thread tap edge (9) is arranged at the peripheral edge of the thread tap base body (10), and the thread tap base body (10) is made of high-speed steel.

5. The extrusion tap according to claim 1, wherein: a connecting curved surface (2) is arranged between the connecting rod (1) and the short shaft (3), and a groove (8) is formed in the tail end of the connecting rod (1).