Deep hole drill bit convenient to install

Abstract

The utility model discloses a deep hole drill bit convenient to install, and relates to the technical field of deep hole drill bits, the deep hole drill bit comprises a drill rod and an installation sleeve, one end of the drill rod is in threaded connection with the interior of the installation sleeve, a rectangular slot is formed in the end, arranged in the installation sleeve, of the drill rod, and an inner fixing box is fixedly connected with the interior of the installation sleeve. The end, provided with an external thread, of a drill rod is screwed into the bottom of a mounting sleeve, a rectangular insertion block is inserted into a rectangular insertion groove, the drill rod is driven to rotate to push one end of the drill rod to be screwed into the mounting sleeve, one end of a rectangular sliding rod slides towards the interior of a rotating sleeve, and the rotating sleeve is driven to rotate; under the action of the one-way rotating mechanism, reverse rotation of the rotating sleeve is limited, reverse taking-out of the drill rod is limited under the action of the rectangular sliding rod, the rotating sleeve, the rectangular inserting groove and the rectangular inserting block, rapid installation of the drill rod is completed, and the device is simple in structure and convenient to install.

Description

Technical Field

[0001] This utility model relates to the field of deep hole drill bit technology, specifically a deep hole drill bit that is easy to install. Background Technology

[0002] Twist drills, also known as twist drills, are tools that use their rotating cutting motion relative to a fixed axis to drill round holes in workpieces. They are named for their spiral-shaped chip flutes, which resemble a twisted rope. Twist drills have two, three, or more flutes, but two flutes are the most common. Twist drills are widely used on equipment such as drilling machines, milling machines, lathes, and machining centers. Deep hole drills are longer drills, suitable for drilling deep holes in workpieces.

[0003] Chinese Patent Publication No. CN208662616U discloses a deep hole drill that is easy to install, including a drill bit body, a fixing rod, a positioning post, a drill rod, a mounting groove, a positioning groove, a spline, and a spline groove. Two fixing rods are integrally formed at the end of the drill bit body away from the drill tip. A spline is integrally formed on the circumferential surface of the fixing rod. A positioning post is fixed at the end of the fixing rod. A mounting groove is provided at the end of the drill rod near the drill bit body. A spline groove that matches the spline is provided on the inner side wall of the mounting groove. The mounting groove matches the fixing rod. The fixing rod and the drill rod are fixedly connected by a first bolt and a second bolt. The first bolt and the second bolt are perpendicular to each other in space.

[0004] However, the inventor of the above-mentioned device believes that there are certain defects. The drill bit and drill rod of the above-mentioned device are connected by bolts, and disassembly and assembly require disassembly and assembly tools, which is very inconvenient, time-consuming and laborious. Therefore, this utility model provides a deep hole drill bit that is easy to install. Utility Model Content

[0005] The purpose of this invention is to provide a deep hole drill bit that is easy to install, so as to solve the above-mentioned shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a deep hole drill bit that is easy to install, comprising a drill rod and an installation sleeve. One end of the drill rod is threaded into the interior of the installation sleeve. A rectangular slot is provided at one end of the drill rod inside the installation sleeve. An inner fixing box is fixedly connected inside the installation sleeve. A rotating sleeve is rotatably connected to the bottom of the inner fixing box. A rectangular sliding rod is slidably connected to one end of the rotating sleeve. A rectangular insert is fixedly connected to one end of the rectangular sliding rod. The rectangular insert is inserted into the interior of the rectangular slot. A one-way rotation mechanism is provided inside the inner fixing box to restrict the reverse rotation of the rotating sleeve.

[0007] Preferably, the unidirectional rotation mechanism includes a connecting turntable fixed to one end of the rotating sleeve, a limiting slot is provided on the outer surface of the connecting turntable, a limiting rod is slidably connected to the inner fixed box, and one end of the limiting rod is inserted into the inside of the limiting slot. The rotating sleeve is restricted to rotate in the opposite direction by the limiting rod, the connecting turntable and the limiting slot.

[0008] Preferably, a connecting piece is fixedly connected to the limiting rod, and the connecting piece is connected to the inner sidewall of the inner fixing box by a spring. Under the action of the spring force, the limiting rod can quickly slide and reset when one end is not under force.

[0009] Preferably, there are multiple limiting slots, which are distributed in a circular array on the outer surface of the connecting turntable, and one end of the limiting rod is inclined.

[0010] Preferably, the rotating sleeve has a groove inside, one end of the rectangular slide rod extends into the groove, and a rectangular sliding plate is fixedly connected to one end of the rectangular slide rod. The rectangular sliding plate slides inside the groove. Through the rectangular sliding plate and the groove, the rectangular slide rod slides at one end of the rotating sleeve, and the rotating sleeve is driven to rotate together during the rotation of the rectangular slide rod.

[0011] Preferably, a mounting base is fixedly connected to the top of the mounting sleeve, and a mounting hole is provided on the outer surface of the mounting base. The mounting base and the mounting hole facilitate connection with the output shaft end of the drive motor.

[0012] Preferably, the other end of the limiting rod extends to the outside of the mounting sleeve, and one end of the limiting rod is provided with a through groove, which facilitates the removal of one end of the limiting rod from the inside of the limiting slot.

[0013] Beneficial effects:

[0014] 1. This application involves screwing one threaded end of the drill rod into the bottom of the mounting sleeve and inserting a rectangular insert into the rectangular slot. By driving the drill rod to rotate, one end of the drill rod is pushed into the mounting sleeve, causing one end of the rectangular slide rod to slide into the rotating sleeve and drive the rotating sleeve to rotate. Under the action of the one-way rotation mechanism, the reverse rotation of the rotating sleeve is restricted. Under the action of the rectangular slide rod, the rotating sleeve, the rectangular slot, and the rectangular insert, the reverse removal of the drill rod is restricted, thus completing the rapid installation of the drill rod. This device has a simple structure and is easy to install.

[0015] 2. This application uses a connecting turntable, a limiting slot, a limiting rod, a connecting piece, and a spring to form a one-way rotation mechanism to limit the reverse rotation of the rotating sleeve, thereby limiting the rotation of the drill rod to be taken out in the reverse direction. By pulling one end of the limiting rod, the end of the limiting rod is pulled out from the inside of the limiting slot, allowing the rotating sleeve to rotate freely, thus facilitating the removal of the drill rod from one end of the mounting sleeve. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A perspective view provided for an embodiment of this utility model;

[0018] Figure 2 A perspective sectional view of the mounting sleeve provided in an embodiment of this utility model;

[0019] Figure 3 A cross-sectional view of the connecting turntable provided in an embodiment of this utility model;

[0020] Figure 4 Provided for the embodiments of this utility model Figure 3 Enlarged view at point A;

[0021] Figure 5 A perspective cross-sectional view of the rotating sleeve provided in an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Drill rod; 11. Rectangular slot; 2. Mounting sleeve; 3. Inner fixing box; 4. Rotating sleeve; 41. Rectangular slide plate; 5. Rectangular slide rod; 51. Rectangular insert block; 6. Connecting turntable; 61. Limiting slot; 7. Limiting insert rod; 71. Connecting piece; 72. Spring; 8. Mounting base. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A deep hole drill bit that is easy to install includes a drill rod 1 and an mounting sleeve 2. One end of the drill rod 1 is threaded into the inside of the mounting sleeve 2. A rectangular slot 11 is provided at the end of the drill rod 1 inside the mounting sleeve 2. A threaded hole that matches the external thread of one end of the drill rod 1 is provided at the bottom of the mounting sleeve 2. The drill rod 1 is installed at the bottom of the mounting sleeve 2 by screwing the threaded end of the drill rod 1 into the bottom of the mounting sleeve 2 and rotating it.

[0026] Please refer to it again. Figure 1 , Figure 2 and Figure 5 An inner fixing box 3 is fixedly connected inside the mounting sleeve 2. A rotating sleeve 4 is rotatably connected to the bottom of the inner fixing box 3. A rectangular slide rod 5 is slidably connected to one end of the rotating sleeve 4. A rectangular insert 51 is fixedly connected to one end of the rectangular slide rod 5. The rectangular insert 51 is inserted into the inside of the rectangular slot 11. A sliding groove is opened inside the rotating sleeve 4. One end of the rectangular slide rod 5 extends into the sliding groove. A rectangular slide plate 41 is fixedly connected to one end of the rectangular slide rod 5. The rectangular slide plate 41 slides inside the sliding groove. When the drill rod 1 is not installed at the bottom of the mounting sleeve 2, the rectangular insert 51 extends to the bottom of the mounting sleeve 2 through the screw hole at the bottom of the mounting sleeve 2, so that the rectangular insert 51 can be inserted into the inside of the rectangular slot 11 when the drill rod 1 is installed. The drill rod 1 is rotated and installed at the bottom of the mounting sleeve 2. Under the action of the rotating sleeve 4, the rectangular slide rod 5 and the rectangular slide plate 41, the drill rod 1 drives the rectangular slide rod 5 to rotate and slide at one end of the rotating sleeve 4 during the process of rotating into the mounting sleeve 2, and drives the rotating sleeve 4 to rotate together.

[0027] Please refer to it again. Figure 1 The top of the mounting sleeve 2 is fixedly connected to the mounting base 8. The outer surface of the mounting base 8 is provided with mounting holes. One end of the drive motor is inserted into the interior of the mounting base 8, and then the mounting base 8 is connected to the drive motor by fasteners, so as to drive the whole device to rotate.

[0028] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4 The inner fixed box 3 is equipped with a one-way rotation mechanism that restricts the reverse rotation of the rotating sleeve 4. The one-way rotation mechanism includes a connecting turntable 6 fixed to one end of the rotating sleeve 4. The one-way rotation mechanism restricts the rotating sleeve 4 from reversing, i.e., the direction in which the drill rod 1 rotates out.

[0029] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4A limiting slot 61 is provided on the outer surface of the connecting turntable 6. A limiting rod 7 is slidably connected to the inner fixing box 3. One end of the limiting rod 7 is inserted into the inside of the limiting slot 61. A connecting piece 71 is fixedly connected to the limiting rod 7. The connecting piece 71 is connected to the inner side wall of the inner fixing box 3 by a spring 72. One end of the limiting rod 7 is inclined. The cross-section of the limiting slot 61 is a right-angled triangle. When the rotating sleeve 4 rotates, it drives the connecting turntable 6 to rotate together, in the same direction as the drill rod 1 rotating into the installation sleeve 2, through the limiting slot. The inclined surface of 61 presses against one end of the limiting rod 7, and the compression spring 72 pushes one end of the limiting rod 7 out of the inside of the limiting slot 61. Then, the spring 72 rebounds and quickly pushes the limiting rod 7 into the inside of the limiting slot 61. The plane of the limiting rod 7 abuts against the plane of the limiting slot 61 to limit the reverse rotation of the connecting turntable 6, thereby limiting the direction of the drill rod 1 rotating out of the mounting sleeve 2. There are multiple limiting slots 61, which are distributed in a circumferential array on the outer surface of the connecting turntable 6.

[0030] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4 The other end of the limiting rod 7 extends to the outside of the mounting sleeve 2. One end of the limiting rod 7 has a through groove. By pulling one end of the limiting rod 7, the end of the limiting rod 7 located inside the limiting slot 61 can be manually pulled out from inside the limiting slot 61, so that the rotating sleeve 4 can rotate freely, making it easy to rotate and remove the drill rod 1 from one end of the mounting sleeve 2 from inside the mounting sleeve 2.

[0031] Working principle: The mounting base 8 is installed on the output shaft end of the drive motor using fasteners. The rectangular insert 51 at the bottom of the mounting sleeve 2 is inserted into the rectangular slot 11 at one end of the drill rod 1. The drill rod 1 is screwed into the bottom of the mounting sleeve 2 by rotating it. As the drill rod 1 rotates into the mounting sleeve 2, the rectangular slide rod 5, through the rotating sleeve 4 and rectangular slide bar 5, causes the rectangular slide bar 5 to rotate and slide inward at the bottom of the rotating sleeve 4, driving the rotating sleeve 4 to rotate. The inclined surface of the limiting slot 61 presses against one end of the limiting insert 7, compressing the spring 72. The limiting rod 7 is pushed out of the limiting slot 61 by one end, and then quickly pushed into the limiting slot 61 by the spring 72. The plane of the limiting rod 7 abuts against the plane of the limiting slot 61 to limit the reverse rotation of the connecting turntable 6, thereby limiting the direction of the drill rod 1 to rotate out of the mounting sleeve 2, thus completing the quick installation and fixing of the drill rod 1. By manually pulling one end of the limiting rod 7 out of the limiting slot 61, the rotating sleeve 4 can be rotated freely, making it easy to rotate and remove the drill rod 1 from one end of the mounting sleeve 2.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A deep hole drill bit which is easy to install, characterized by: The utility model provides a drilling rod (1) and installation sleeve (2) are included, one end of drilling rod (1) is screwed in the inside of installation sleeve (2), and the one end for being arranged in the inside of installation sleeve (2) of drilling rod (1) is equipped with rectangular slot (11), and the inside fixed connection of installation sleeve (2) is equipped with inner fixed box (3), and the bottom rotationally connected of inner fixed box (3) is equipped with rotating sleeve (4), and one end of rotating sleeve (4) is slidably connected with rectangular slide bar (5), and one end of rectangular slide bar (5) is fixedly connected with rectangular plug (51), and rectangular plug (51) is inserted in the inside of rectangular slot (11), and the inside of inner fixed box (3) is equipped with one way rotation mechanism of restricting rotating sleeve (4) reverse rotation.

2. The easy-to-mount deep hole drill according to claim 1, characterized in that: The one way rotation mechanism includes a connecting turntable (6) fixed to one end of the rotating sleeve (4), the outer surface of the connecting turntable (6) is provided with a limiting slot (61), and the inner fixed box (3) is slidably connected with a limiting plug (7), one end of the limiting plug (7) is inserted into the limiting slot (61).

3. The easy-to-mount deep hole drill according to claim 2, characterized in that: The limiting plug (7) is fixedly connected with a connecting piece (71), and the connecting piece (71) is connected with the inner side wall of the inner fixed box (3) through a spring (72).

4. The easy-to-mount deep hole drill according to claim 3, characterized in that: The limiting slot (61) is in the form of a circumferential array on the outer surface of the connecting turntable (6), and one end of the limiting plug (7) is inclined.

5. The easy-to-mount deep hole drill according to claim 1, wherein: The rotating sleeve (4) is provided with a sliding groove in the inside, one end of the rectangular slide bar (5) extends into the sliding groove, and one end of the rectangular slide bar (5) is fixedly connected with a rectangular slide plate (41), and the rectangular slide plate (41) slides in the sliding groove.

6. The easy-to-mount deep hole drill according to claim 1, wherein: The top of the installation sleeve (2) is fixedly connected with a mounting seat (8), and the outer surface of the mounting seat (8) is provided with a mounting hole.

7. The easy-to-mount deep hole drill according to claim 2, wherein: The other end of the limiting plug (7) extends to the outside of the installation sleeve (2), and the one end of the limiting plug (7) is provided with a through groove.

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