CN217412718U

CN217412718U - Machining cutter for petroleum casing thread cutting

Info

Publication number: CN217412718U
Application number: CN202122789635.2U
Authority: CN
Inventors: 高连新; 李志芬; 梅永杰
Original assignee: Helaide Changzhou Precision Tool Co ltd
Current assignee: Helaide Changzhou Precision Tool Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-09-13
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a processing cutter for oil casing thread cutting, including cutter arbor, tool bit and cutting edge. The beneficial effects of the utility model are that: the utility model discloses a setting up regulation pole, logical groove, spring, spacing groove, fastening bolt and telescopic link, utilizing the mutual cooperation between them can realize the regulation of cutter arbor length, loosen fastening bolt, then artificial pulling regulation pole, make it reach suitable length, screwing fastening bolt, make its lower extreme and spacing groove in close contact with, meanwhile, set up the scale, can make the length of adjusting more accurate; the utility model discloses a set up a plurality of chip groove on the surface of tool bit, can clear up milling the sweeps, avoid the sweeps to pile up and cause the influence at the tool bit surface to milling work, run through on the cutting face of tool bit moreover and be provided with the louvre, can be quick dispel the heat to the tool bit, avoid high temperature to cause the destruction to the tool bit.

Description

Machining cutter for petroleum casing thread cutting

Technical Field

The utility model relates to a processing cutter specifically is a processing cutter for oil casing thread cutting, belongs to milling cutter technical field.

Background

The petroleum pipe is an important tool for exploiting petroleum and natural gas, generally comprises oil pipes, a sleeve and a drill rod, wherein hundreds of even hundreds of stone oil pipes are connected through the sleeve to form a petroleum pipe column with the length of thousands of meters, and the petroleum pipe column becomes an oil gas channel for conveying the petroleum and the natural gas to the ground, wherein the sleeve is the weakest link in the pipe column. The quality of the internal thread of the sleeve is closely related to the tool for machining the thread, in addition to the material of the steel pipe itself.

However, the existing thread machining tool has some problems when in use:

1) the length of the cutter bar can not be adjusted by the conventional thread machining cutter, and the cutter needs to be frequently replaced when the threads are machined in petroleum casings at different depths, so that the machining efficiency is reduced;

2) the existing thread machining cutter can not radiate heat to the head, and heat is accumulated on the cutter head to easily damage the cutter head.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a machining tool for cutting the thread of an oil casing in order to solve the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose: comprises that

The upper end of the cutter bar is fixedly provided with a mounting hole, and the inner wall of the mounting hole is provided with a connecting thread;

the cutter head is fixedly connected to the lower side of the cutter bar;

the cutting edge, its winding sets up the periphery of tool bit, and it is provided with a plurality of.

As a further aspect of the present invention: the surface of tool bit is provided with the chip groove.

As a further aspect of the present invention: the cutter head is provided with heat dissipation holes in a penetrating mode on the cutting surface of the cutter edge.

As a further aspect of the present invention: one side lateral wall lower extreme fixed mounting of cutter arbor has the articulated shaft, and rotates on the articulated shaft and be connected with the scale, the one side that the articulated shaft was kept away from to the scale is through fixture block and the joint of cutter arbor lateral wall of rigid coupling on the cutter arbor.

As a further aspect of the present invention: the upper end rigid coupling of tool bit has the regulation pole, the downside of cutter arbor is inside be provided with adjust pole matched with and lead to the groove, adjust sliding connection between pole and the groove, and adjust the pole upper end and lead to the rigid coupling between the groove and have the spring.

As the utility model discloses further scheme again: the tool bit is located the fixed telescopic link that is provided with in regulation pole both sides, the upper end and the cutter arbor fixed connection of telescopic link.

As a further aspect of the present invention: the rod body of the adjusting rod is provided with a limiting groove, a threaded hole penetrates through the cutter bar, a fastening bolt is connected with the threaded hole in a threaded manner, and the limiting groove and the threaded hole are located on the same axis.

The utility model has the advantages that:

1) the utility model discloses a setting up regulation pole, logical groove, spring, spacing groove, fastening bolt and telescopic link, utilizing the mutual cooperation between them can realize the regulation of cutter arbor length, loosen fastening bolt, then artificial pulling regulation pole, make it reach suitable length, screwing fastening bolt, make its lower extreme and spacing groove in close contact with, meanwhile, set up the scale, can make the length of adjusting more accurate;

2) the utility model discloses a set up a plurality of chip groove on the surface of tool bit, can clear up milling the sweeps, avoid the sweeps to pile up and cause the influence at the tool bit surface to milling work, run through on the cutting face of tool bit moreover and be provided with the louvre, can be quick dispel the heat to the tool bit, avoid high temperature to cause the destruction to the tool bit.

Drawings

FIG. 1 is a schematic front view of the connection structure of the cutting tool of the present invention;

FIG. 2 is a schematic sectional view of the connection structure of the cutting tool of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1. the cutter arbor, 2, tool bit, 3, tool bit, 4, chip groove, 5, screw hole, 6, fastening bolt, 7, articulated shaft, 8, fixture block, 9, scale, 10, telescopic link, 11, mounting hole, 12, logical groove, 13, spring, 14, regulation pole, 15, spacing groove and 16, louvre.

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.

Example one

Referring to FIGS. 1 to 3, a machining tool for cutting threads of petroleum casing comprises

The cutter bar 1 is fixedly provided with a mounting hole 11 in the upper end thereof, and the inner wall of the mounting hole 11 is provided with connecting threads;

the cutter head 2 is fixedly connected to the lower side of the cutter bar 1;

and the cutting edges 3 are wound on the periphery of the cutter head 3 and are provided with a plurality of cutting edges.

The embodiment of the utility model provides an in, one side lateral wall lower extreme fixed mounting of cutter arbor 1 has articulated shaft 7, and rotates on the articulated shaft 7 and be connected with scale 9, scale 9 keeps away from one side of articulated shaft 7 and passes through fixture block 8 and the 1 lateral wall joint of cutter arbor of rigid coupling on cutter arbor 1, is convenient for adjust cutter arbor 1's length, sets up scale 7, can be so that the length of adjusting is more accurate.

The embodiment of the utility model provides an in, the upper end rigid coupling of tool bit 2 has regulation pole 14, the downside of cutter arbor 1 is inside to be provided with and to adjust pole 14 matched with logical groove 12, adjust pole 14 and lead to sliding connection between groove 12, and adjust pole 14 upper end and lead to the rigid coupling between groove 12 and have spring 13, prevent when adjusting cutter arbor 1 length, adjust pole 14 and break away from in the cutter arbor 1.

The embodiment of the utility model provides an in, tool bit 2 is located the fixed telescopic link 10 that is provided with in regulation pole 14 both sides, the upper end and the 1 fixed connection of cutter arbor of telescopic link 10 are convenient for carry on spacingly to the shift position of adjusting pole 14, avoid adjusting pole 14 and the separation of cutter arbor 1 simultaneously.

The embodiment of the utility model provides an in, be provided with spacing groove 15 on the pole body of regulation pole 14, just run through on the cutter arbor 1 and be provided with

screw hole

5, 5 threaded connection in screw hole have fastening bolt 6, and spacing groove 15 is located same axis with screw hole 5, is convenient for carry out spacing fixed to regulation pole 14.

Example two

The tool bar 1 is fixedly provided with a mounting hole 11 in the upper end of the tool bar 1, and connecting threads are arranged on the inner wall of the mounting hole 11;

the cutter head 2 is fixedly connected to the lower side of the cutter bar 1;

The embodiment of the utility model provides an in, the surface of tool bit 2 is provided with chip groove 4, is convenient for clear up the sweeps that mills the production, avoids piling up and causes the influence at tool bit 2 surfaces to milling work.

The embodiment of the utility model provides an in, tool bit 2 is located and runs through on the cutting face of cutting edge 3 and is provided with louvre 16, is convenient for mill the in-process, cools down tool bit 2, avoids high temperature to damage tool bit 2.

The working principle is as follows: when the machining tool is used, the tool is firstly connected with a machine tool through a mounting hole 11, then the tool bar 1 is adjusted according to the depth of an inner hole of an oil casing, firstly, the graduated scale 9 is taken out of the fixture block 8 and is rotated to the lower side to be parallel to the tool bar 1, then, the fastening bolt 6 is unscrewed, then, the adjusting rod 14 is manually pulled to reach the proper length, the fastening bolt 6 is screwed to enable the lower end of the fastening bolt to be in close contact with the limiting groove 15, the graduated scale 9 is arranged, the adjusted length can be more accurate, then, milling work can be carried out, generated scraps can be cleaned through the arranged scrap discharge groove 4 during milling, the influence caused by the fact that the scraps are accumulated on thread milling is avoided, the heat dissipation holes 16 are arranged on the cutting surface of the tool bit 2, the temperature of the tool bit 2 can be reduced during milling, and the tool bit 2 is prevented from being damaged by high temperature, thereby improving the service life of the cutter.

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. A processing cutter for cutting the thread of the petroleum casing is characterized by comprising

The upper end of the cutter bar (1) is internally and fixedly provided with a mounting hole (11), and the inner wall of the mounting hole (11) is provided with connecting threads;

the cutter head (2) is fixedly connected to the lower side of the cutter bar (1);

and the cutting edges (3) are wound on the periphery of the cutter head (2) and are provided with a plurality of cutting edges.

2. The machining tool for petroleum casing thread cutting according to claim 1, wherein: the surface of the tool bit (2) is provided with a chip groove (4).

3. A machining tool for oil casing thread cutting according to claim 1, characterized in that: the cutter head (2) is provided with a heat dissipation hole (16) on the cutting surface of the cutter edge (3) in a penetrating manner.

4. A machining tool for oil casing thread cutting according to claim 1, characterized in that: one side lateral wall lower extreme fixed mounting of cutter arbor (1) has articulated shaft (7), and rotates on articulated shaft (7) and be connected with scale (9), one side that articulated shaft (7) were kept away from in scale (9) is through fixture block (8) and cutter arbor (1) lateral wall joint of rigid coupling on cutter arbor (1).

5. A machining tool for oil casing thread cutting according to claim 1, characterized in that: the upper end rigid coupling of tool bit (2) has regulation pole (14), the downside of cutter arbor (1) is inside to be provided with and to adjust logical groove (12) of pole (14) matched with, adjust pole (14) and lead to sliding connection between groove (12), and adjust the rigid coupling between pole (14) upper end and lead to groove (12) and have spring (13).

6. A machining tool for oil casing thread cutting according to claim 1, characterized in that: the cutting head (2) is positioned on two sides of the adjusting rod (14) and is fixedly provided with a telescopic rod (10), and the upper end of the telescopic rod (10) is fixedly connected with the cutter bar (1).

7. A machining tool for oil casing thread cutting according to claim 5, characterized in that: a limiting groove (15) is formed in the rod body of the adjusting rod (14), a threaded hole (5) penetrates through the cutter bar (1), a fastening bolt (6) is connected to the threaded hole (5) in an internal thread mode, and the limiting groove (15) and the threaded hole (5) are located on the same axis.