Lathe internal thread drilling tool

Abstract

The utility model discloses a lathe internal thread drilling tool, and belongs to the technical field of lathe drilling, the lathe internal thread drilling tool comprises a taper shank, the top of the taper shank is fixedly connected with a first connecting piece, the top of the first connecting piece is fixedly provided with a second connecting piece, the top of the second connecting piece is welded with a limiting block, the top of the second connecting piece is provided with an insertion hole, and the insertion hole is fixedly connected with the first connecting piece. A mounting column is inserted into the inner wall of the inserting hole, and a square hole is formed in the top of the mounting column; through cooperative use of the taper shank, the mounting column and the square hole, large threads can be conveniently drilled on a lathe, the problem that when a bar workpiece is machined and large internal threads need to be machined at the right end, only a small screw tap can be placed in a common emergency screw tap clamping sleeve is solved, and meanwhile the problem that when the large threads need to be drilled, clamping cannot be achieved, and the machining difficulty is lowered is solved. By means of the magnetic column, the end, connected with the square hole, of the screw tap can be inserted into the outer side of the magnetic column, and then it is guaranteed that the screw tap and the square hole cannot be disengaged at will after being connected.

Description

Technical Field

[0001] The present application relates to the technical field of lathe drilling, and in particular to a tool for drilling internal threads on a lathe. Background Art

[0002] With the advancement of science and technology and the development of society, lathes will be needed in CNC machining to drill internal threads.

[0003] When processing a bar workpiece and a larger internal thread needs to be processed on the right end, the ordinary emergency tap ferrule can only hold a smaller tap and cannot be clamped when a larger thread needs to be drilled, making it inconvenient to drill the larger thread. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present application provides a lathe internal thread drilling tool, which overcomes the deficiencies of the prior art and aims to solve the problems in the prior art.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a lathe drilling internal thread tool, comprising a tapered shank, a connecting piece 1 is fixedly connected to the top of the tapered shank, a connecting piece 2 is fixedly installed on the top of the connecting piece 1, a limiting block is welded on the top of the connecting piece 2, a socket is provided on the top of the connecting piece 2, a mounting column is inserted into the inner wall of the socket, a square hole is provided on the top of the mounting column, a limiting groove is provided on the top of the connecting piece 2, a positioning column is fixedly assembled on the outer side of the mounting column, a through hole is provided on the outer edge of the connecting piece 1, a nut is fixedly assembled on the outer edge of the connecting piece 1, a bolt is inserted into the inner wall of the through hole, and a magnetic column is fixedly assembled on the inner bottom of the square hole.

[0006] By adopting the above technical solution, one end of the tap connected to the square hole can be inserted into the outer side of the magnetic column, thereby ensuring that the tap and the square hole will not be separated at will after being connected.

[0007] As a preferred technical solution of the present application, an outer edge of one end of the bolt is fixed with an external thread and is threadedly connected to the inner wall position of the nut, and the through hole passes through the connecting piece and the mounting column corresponding to the position of the nut.

[0008] By adopting the above technical solution, after the bolt is threadedly connected to the inner wall position of the nut, the mounting column can be stably positioned on the inner wall position of the socket using the bolt, ensuring that the mounting column will not shake randomly on the inner wall position of the socket.

[0009] As a preferred technical solution of the present application, a flat groove is provided at one end of the bolt away from the external thread, a receiving groove is provided at one side of the through hole away from the nut, and the nut of the bolt is arranged on the inner wall of the receiving groove.

[0010] By adopting the above technical solution, the user can use a flat-blade screwdriver to rotate the bolt to install and remove the bolt, and at the same time, the nut of the bolt can be stored by using the receiving groove to ensure that it is not exposed.

[0011] As a preferred technical solution of the present application, there are two limit blocks, and the two limit blocks are symmetrically arranged at the top position of the second connecting member, and the outer edge of the mounting column is fitted with the inner sides of the two limit blocks, and the outer edge of the mounting column is fitted with the inner sides of the two limit blocks.

[0012] By adopting the above technical solution, it is possible to limit the two sides of the installation column, thereby playing a supporting and positioning role for the two sides of the installation column.

[0013] As a preferred technical solution of the present application, the number of the limiting grooves and the positioning columns are both two, and the two limiting grooves and the two positioning columns are symmetrically arranged on the inner wall position of the socket and the outer position of the mounting column respectively, the two positioning columns are plugged into the inner wall position of the two limiting grooves, and the outer shape of the positioning columns is adapted to the inner wall shape of the limiting grooves.

[0014] By adopting the above technical solution, the installation column can be further positioned to ensure the stability of the installation column after it is installed on the inner wall of the socket, and to ensure that it will not rotate or shake at will.

[0015] As a preferred technical solution of the present application, the outer diameter of the mounting post is matched with the inner wall diameter of the socket.

[0016] By adopting the above technical solution, there will be no gap after the installation column is inserted into the inner wall position of the socket, thereby ensuring that no foreign matter will enter the middle position between the socket and the installation column.

[0017] Beneficial effects of this application:

[0018] 1. The coordinated use of the taper shank, the mounting column and the square hole makes it easier to drill larger threads on a lathe, thereby avoiding the problem that when a larger internal thread needs to be processed on the right end of a bar workpiece, the ordinary emergency tap ferrule can only hold a smaller tap. At the same time, the problem that it cannot be clamped when a larger thread needs to be drilled is solved, making it inconvenient to drill the larger thread. The magnetic column is used to allow the end of the tap connected to the square hole to be inserted into the outer position of the magnetic column, thereby ensuring that the tap and the square hole will not be separated at will after being connected.

[0019] 2. By inserting the mounting column into the inner wall position of the socket, the user can then use a flat screwdriver to turn the bolt through the flat groove until the end of the bolt away from the flat groove is threadedly connected to the inner wall position of the nut, so that the mounting column can be stably positioned at the inner wall position of the socket by the bolt to ensure that it will not fall off at will, thereby improving the convenience of installation and disassembly of the mounting column, thereby facilitating the replacement of square holes with different inner diameters and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of this application;

[0021] Figure 2 This is a schematic diagram of the partial expansion structure of the installation column of this application;

[0022] Figure 3 This is a schematic diagram of the bolt expansion structure of this application;

[0023] Figure 4 This is a schematic diagram of the nut structure of this application;

[0024] Figure 5 This is a schematic diagram of the mounting column structure of this application.

[0025] In the figure: 1, cone handle; 2, connecting piece 1; 3, connecting piece 2; 4, limit block; 5, socket; 6, mounting column; 7, square hole; 8, limit slot; 9, positioning column; 10, through hole; 11, nut; 12, bolt; 13, receiving slot; 14, flat slot; 15, magnetic column. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Reference Figure 1-5, a lathe internal thread drilling tool comprises a taper shank 1, a connecting piece 2 is fixedly connected to the top of the taper shank 1, a connecting piece 2 is fixedly installed on the top of the connecting piece 2, a limiting block 4 is welded on the top of the connecting piece 2 3, a plug hole 5 is provided on the top of the connecting piece 2 3, a mounting column 6 is inserted into the inner wall of the plug hole 5, a square hole 7 is provided on the top of the mounting column 6, a limiting groove 8 is provided on the top of the connecting piece 2 3, a positioning column 9 is fixedly assembled on the outer side of the mounting column 6, a through hole 10 is provided on the outer edge of the connecting piece 2, a nut 11 is fixedly assembled on the outer edge of the connecting piece 2, a bolt 12 is inserted into the inner wall of the through hole 10, and a magnetic column 15 is fixedly assembled on the inner bottom of the square hole 7, so that the end of the tap connected to the square hole 7 can be inserted into the outer position of the magnetic column 15, thereby ensuring that the tap and the square hole 7 will not be separated at will after connection.

[0028] Reference Figure 3 One end of the bolt 12 is fixedly provided with an external thread on the outer edge and is threadedly connected to the inner wall position of the nut 11. The through hole 10 passes through the connecting piece 2 and the mounting column 6 and corresponds to the position of the nut 11, so that after the bolt 12 is threadedly connected to the inner wall position of the nut 11, the mounting column 6 can be stably positioned on the inner wall position of the socket 5 by using the bolt 12, ensuring that the mounting column 6 will not shake at will on the inner wall position of the socket 5.

[0029] Reference Figure 3 and Figure 4 A flat groove 14 is provided at one end of the bolt 12 away from the external thread, and a receiving groove 13 is provided at one side of the through hole 10 away from the nut 11. The nut of the bolt 12 is arranged on the inner wall of the receiving groove 13. The flat groove 14 allows the user to use a flat screwdriver to rotate the bolt 12 to achieve installation and removal of the bolt 12. At the same time, the nut of the bolt 12 can be stored by using the receiving groove 13 to ensure that it is not exposed to the outside.

[0030] Reference Figure 1 - Figure 4 There are two limit blocks 4, and the two limit blocks 4 are symmetrically arranged at the top position of the second connecting member 3. The outer edge of the mounting column 6 fits with the inner sides of the two limit blocks 4. By fitting the outer edge of the mounting column 6 with the inner sides of the two limit blocks 4, the two sides of the mounting column 6 can be limited, thereby supporting and positioning the two sides of the mounting column 6.

[0031] Reference Figure 2There are two limit grooves 8 and two positioning columns 9, and the two limit grooves 8 and the two positioning columns 9 are symmetrically arranged on the inner wall position of the socket 5 and the outer side position of the mounting column 6 respectively. The two positioning columns 9 are inserted into the inner wall position of the two limit grooves 8. The outer shape of the positioning columns 9 is adapted to the inner wall shape of the limit grooves 8. By inserting the two positioning columns 9 into the inner wall position of the two limit grooves 8, the mounting column 6 can be further positioned, thereby ensuring the stability of the mounting column 6 after being installed to the inner wall position of the socket 5, and ensuring that it will not rotate or shake at will.

[0032] Reference Figure 2 The outer diameter of the mounting post 6 is adapted to the inner wall diameter of the socket 5. By adapting the outer diameter of the mounting post 6 to the inner wall diameter of the socket 5, there will be no gap after the mounting post 6 is inserted into the inner wall position of the socket 5, thereby ensuring that no foreign matter will enter the middle position between the socket 5 and the mounting post 6.

[0033] Working principle: When using the device, first insert the mounting column 6 into the inner wall position of the socket 5, and at the same time, synchronously insert the two positioning columns 9 into the inner wall positions of the two limit grooves 8 until the outer side of the mounting column 6 fits with the inner sides of the two limit blocks 4, and then the bolt 12 can be taken and inserted into the inner wall position of the through hole 10, and then the user can use a flat screwdriver to turn the bolt 12 through the flat groove 14 until the end of the bolt 12 away from the flat groove 14 is threadedly connected to the inner wall position of the nut 11, so that the bolt 12 can be used to stably position the mounting column 6 at the inner wall position of the socket 5 to ensure that it will not fall off at will, thereby improving the convenience of installation and disassembly of the mounting column 6, thereby facilitating the replacement of square holes 7 with different inner diameters, so as to facilitate drilling larger threads on a lathe.

[0034] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A lathe drilling internal thread tool, comprising a tapered shank (1), characterized in that: The top of the conical handle (1) is fixedly connected to a connecting piece 1 (2), the top of the connecting piece 1 (2) is fixedly mounted with a connecting piece 2 (3), a limiting block (4) is welded to the top of the connecting piece 2 (3), a plug hole (5) is provided at the top of the connecting piece 2 (3), a mounting column (6) is inserted into the inner wall of the plug hole (5), a square hole (7) is provided at the top of the mounting column (6), a limiting groove (8) is provided at the top of the connecting piece 2 (3), a positioning column (9) is fixedly mounted on the outer side of the mounting column (6), a through hole (10) is provided at the outer edge of the connecting piece 1 (2), a nut (11) is fixedly mounted on the outer edge of the connecting piece 1 (2), a bolt (12) is inserted into the inner wall of the through hole (10), and a magnetic column (15) is fixedly mounted on the inner bottom of the square hole (7).

2. The lathe internal thread drilling tool according to claim 1, characterized in that: An outer edge of one end of the bolt (12) is fixedly provided with an external thread and is threadedly connected to the inner wall of the nut (11); the through hole (10) passes through the first connecting piece (2) and the mounting column (6) and corresponds to the position of the nut (11).

3. The lathe internal thread drilling tool according to claim 1, characterized in that: A flat groove (14) is formed at one end of the bolt (12) away from the external thread, a receiving groove (13) is formed at one side of the through hole (10) away from the nut (11), and the nut of the bolt (12) is arranged on the inner wall of the receiving groove (13).

4. The lathe internal thread drilling tool according to claim 1, characterized in that: The number of the limit blocks (4) is two, and the two limit blocks (4) are symmetrically arranged at the top position of the second connecting member (3), and the outer edge of the mounting column (6) fits with the inner sides of the two limit blocks (4).

5. The lathe internal thread drilling tool according to claim 1, characterized in that: The number of the limiting grooves (8) and the positioning columns (9) is two, and the two limiting grooves (8) and the two positioning columns (9) are symmetrically arranged at the inner wall position of the insertion hole (5) and the outer wall position of the installation column (6), respectively. The two positioning columns (9) are plugged into the inner wall position of the two limiting grooves (8), and the outer shape of the positioning columns (9) is adapted to the inner wall shape of the limiting grooves (8).

6. The lathe internal thread drilling tool according to claim 1, characterized in that: The outer diameter of the mounting column (6) is matched to the inner wall diameter of the insertion hole (5).

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