CN218395981U

CN218395981U - Diamond hole digger

Info

Publication number: CN218395981U
Application number: CN202221534896.8U
Authority: CN
Inventors: 张华�; 杜宝昌; 何建民
Original assignee: Zhejiang Urus Tools Co ltd
Current assignee: Zhejiang Urus Tools Co ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2023-01-31
Anticipated expiration: 2032-06-16

Abstract

The utility model provides a diamond hole digger belongs to mechanical technical field. The utility model provides a diamond hole digger, includes base, diamond segments, location axle and location sword, and the base is the pipe form, the one end and the diamond segments of base be connected, and the other end is the blind end, and location axle and the coaxial setting of base, and at least part are located the base, and location axle tip is connected with the location sword, and the location sword has the location pointed end coaxial with the base axis, and the location pointed end of location sword stretches out the opening.

Description

Diamond hole digger

Technical Field

The utility model belongs to the technical field of machinery, especially diamond hole digger.

Background

The diamond drill bit is widely applied to the field of drilling operation of hard and brittle materials such as metal materials, stones or concrete, the twist drill bit is adopted in the middle of the traditional diamond drill bit, but the machining process of the twist drill bit is complex, the cost price is higher, and the twist drill bit is easier to damage in the using process.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided the diamond hole digger, had the characteristics that drilling effect is good.

The purpose of the utility model can be realized by the following technical proposal:

diamond hole digger, including base, diamond segments, location axle and location sword, the base is the pipe form, the one end and the diamond segments of base be connected, the other end is the blind end, the location axle with the coaxial setting of base, and at least part is located in the base, location axle tip is connected with the location sword, the location sword has the location pointed end coaxial with the base axis, the location pointed end of location sword stretches out the base.

In the diamond tapper, the diamond segments are arranged along the opening edge, one side of the diamond segments, which is far away from the base, is provided with at least two notch parts, and all the notch parts are arranged on the diamond segments in a circumferential direction.

In the diamond hole digger, the positioning knife is also provided with two symmetrically arranged cutting edges, one end of each cutting edge is connected to form the positioning tip, and the other end of each cutting edge is spaced from the outer wall of the positioning shaft.

In the diamond hole digger, the cutting edges are arc-shaped, and the included angle of the joint of the two cutting edges is less than 45 degrees.

In the diamond hole digger, the side wall of the base is provided with at least one chip removal hole which is a strip-shaped hole and extends along the axial direction of the base.

In the diamond tapper, the outer diameter of the diamond tip is larger than the outer diameter of the base, and the inner diameter of the diamond tip is smaller than the inner diameter of the base.

In the diamond tapper, the positioning shaft is detachably connected to the base.

In the diamond tapper, the closed end of the base is fixedly provided with the connecting seat, the center of the closed end of the base is provided with the mounting hole extending towards the connecting seat, and one end of the positioning shaft is inserted into the mounting hole.

In the diamond tapper, the outer wall of the connecting seat is provided with a screw hole communicated with the mounting hole, a locking bolt is arranged at the screw hole, and the end part of the locking bolt can abut against the positioning shaft.

Compared with the prior art, the utility model has the advantages of it is following:

compare in traditional fluted drill as central positioning portion, what this application adopted relies on the location of location sword most advanced to fix a position, compares in fluted drill's tip more acutely, and the effect is better in the location, and is convenient more easily in the processing of location axle and location sword in this application, and more reliable on operating condition.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a side view schematic of the present application;

FIG. 3 is a schematic top view of the present application;

FIG. 4 is a schematic view of a positioning knife location of the present application;

fig. 5 is a schematic cross-sectional structure of the present application.

In the figure, the position of the first and second end faces,

2. a base; 21. chip removal holes;

3. a diamond tool bit; 31. a notch portion;

4. positioning the shaft;

5. positioning a knife; 51. positioning the tip; 52. a blade; 53. spacing;

6. a connecting seat; 61. mounting holes; 62. a screw hole;

7. and locking the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the diamond tapper comprises a base 2, a diamond tool bit 3, a positioning shaft 4 and a positioning knife 5, wherein the base 2 is in a circular tube shape, one end of the base 2 is connected with the diamond tool bit 3, the other end of the base is a closed end, the positioning shaft 4 is coaxially arranged with the base 2 and at least partially positioned in the base 2, the end part of the positioning shaft 4 is connected with the positioning knife 5, the positioning knife 5 is provided with a positioning tip 51 which is coaxial with the axis of the base 2, and the positioning tip 51 of the positioning knife 5 extends out of the base 2.

In this application, when using this diamond tapper, carry out cutting drilling to the base plate and handle, fix a position through the location pointed end 51 of location sword 5, then carry out the accuracy cutting through diamond segments 3.

Compare in traditional fluted drill as central positioning portion, what this application adopted relies on locating knife 5's location most advanced 51 to fix a position, compares in fluted drill's tip more acutely, and the effect is better in the location, and is convenient more easily in the processing of location axle 4 and locating knife 5 in this application, and more reliable on operating condition.

In this application, location sword 5 adopts the alloy tool bit, is higher in intensity, and the life-span is more of a specified duration. The positioning tip 51 of the positioning knife 5 is located outside the base 2. In use, the item to be cut is first contacted by the locating tip 51.

Specifically, the diamond segments 3 are arranged along the edge of the opening, and one side of the diamond segments 3 away from the base 2 is provided with at least two notch portions 31, and all the notch portions 31 are circumferentially arrayed on the diamond segments 3. The notch portion 31 is an inwardly recessed groove, and cutting efficiency in cutting can be improved by the notch portion 31 in the process of machining. In this application, the notch 31 has two notches, which are symmetrically provided on the diamond segments 3. Further, the section of the working end of the diamond tip 3 is curved.

Specifically, the positioning knife 5 further has two symmetrically arranged blades 52, one end of each blade 52 is connected to form a positioning tip 51, and the other end of each blade 52 is spaced from the outer wall of the positioning shaft 4 by a distance 53A1. During machining, positioning is carried out by the positioning tip 51, and then, while further drilling down deeply, reaming is carried out by the two blades 52, so that the positioning is stabilized. The distance 53 between the other end of the blade 52 and the outer wall of the positioning shaft 4 can be set so that the diameter of the drilled intermediate hole is larger than the diameter of the positioning shaft 4, thereby reducing the possibility that the cut material is stuck in the base 2 and is difficult to take out.

Specifically, the cutting edges 52 are arc-shaped, and the included angle α at the intersection of the two cutting edges 52 is less than 45 °. This angle allows better positioning than during machining. While the arc-shaped cutting edge 52 improves the service life of the positioning knife 5.

Specifically, at least one clearance hole 21 is opened to the lateral wall of base 2, and clearance hole 21 is rectangular hole, and clearance hole 21 extends along the axial of base 2. The dust exhaust holes 21 are used for discharging dust during processing. In the present embodiment, the number of the clearance holes 21 is two.

Specifically, the outer diameter of diamond tip 3 is larger than the outer diameter of base 2, and the inner diameter of diamond tip 3 is smaller than the inner diameter of base 2. This design can make the part of cutting off can not block in base 2 after cutting through diamond segments 3, reduces the part of cutting off and is difficult to follow the possibility of taking out in base 2.

Specifically, the positioning shaft 4 is detachably connected to the base 2. After the positioning knife 5 is damaged, the positioning knife can be replaced by the copying positioning shaft 4.

Specifically, the closed end of the base 2 is provided with a connecting seat 6, the center of the closed end of the base 2 is provided with a mounting hole 61 extending towards the connecting seat 6, and one end of the positioning shaft 4 is inserted into the mounting hole 61. Through the design of connecting seat 6, make location axle 4 can insert sufficient degree of depth to reduce the possibility that location axle 4 rocked.

Specifically, the outer wall of the connecting seat 6 is provided with a screw hole 62 communicated with the mounting hole 61, the screw hole 62 is provided with a locking bolt 7, and the end of the locking bolt 7 can abut against the positioning shaft 4. After the locating shaft 4 is inserted into the mounting hole 61, the end part is abutted against the locating shaft 4 to be fixed after the locking bolt 7 is screwed, and when the locating shaft 4 is required to be detached, the locating shaft 4 can be detached after the locking bolt 7 is unscrewed.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions relating to "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Also, the meaning of "and/or" appearing throughout is to include three versions, exemplified by "A and/or B" including either version A, or version B, or versions in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The above components are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The diamond tapper is characterized by comprising a base (2), a diamond tool bit (3), a positioning shaft (4) and a positioning knife (5), wherein the base (2) is in a circular tube shape, one end of the base (2) is connected with the diamond tool bit (3), the other end of the base is a closed end, the positioning shaft (4) and the base (2) are coaxially arranged, at least part of the positioning shaft is located in the base (2), the end part of the positioning shaft (4) is connected with the positioning knife (5), the positioning knife (5) is provided with a positioning tip (51) coaxial with the axis of the base (2), and the positioning tip (51) of the positioning knife (5) extends out of the base (2);

diamond segments (3) set up along the opening edge, diamond segments (3) keep away from base (2) one side and have two at least breach portions (31), and all breach portions (31) circumference set up on diamond segments (3).

2. The diamond tapper according to claim 1, wherein said positioning knife (5) further has two symmetrically arranged cutting edges (52), one end of said two cutting edges (52) is connected to form said positioning tip (51), and the other end of said cutting edge (52) is spaced from the outer wall of said positioning shaft (4) by a distance A1.

3. The diamond tapper according to claim 2, characterized in that said cutting edges (52) are arc shaped, the angle α of the intersection of two cutting edges (52) being smaller than 45 °.

4. The diamond tapper according to claim 1, wherein the side wall of the base (2) is provided with at least one clearance hole (21), the clearance hole (21) is a long strip-shaped hole, and the clearance hole (21) extends along the axial direction of the base (2).

5. The diamond tapper according to claim 1, wherein the outer diameter of the diamond tip (3) is larger than the outer diameter of the base (2), and the inner diameter of the diamond tip (3) is smaller than the inner diameter of the base (2).

6. The diamond tapper according to claim 1, wherein said positioning shaft (4) is detachably connected to said base (2).

7. The diamond tapper according to claim 6, wherein the closed end of the base (2) is provided with a connecting seat (6) fixed thereto, the closed end of the base (2) is centrally provided with a mounting hole (61) extending toward the connecting seat (6), and one end of the positioning shaft (4) is inserted into the mounting hole (61).

8. The diamond tapper according to claim 7, wherein the outer wall of the connecting base (6) is provided with a screw hole (62) communicating with the mounting hole (61), a locking bolt (7) is provided at the screw hole (62), and the end of the locking bolt (7) can abut against the positioning shaft (4).