CN214079429U - Positioning structure for fixing drill tip and drill body - Google Patents

Abstract

The utility model discloses a carry out fixed location structure to drill point and brill body, include: the positioning column is oppositely arranged on the drill tip; a limiting groove which is arranged at one end of the drill body and can be used for the positioning column to extend into, and second chip grooves which are communicated with the first chip grooves on the drill rod are arranged at two sides of the limiting groove, so that the limiting groove is in a dovetail shape in space; third chip grooves matched with the drill tips are formed in two opposite sides of the positioning column; the positioning column is in interference fit with the limiting groove. The utility model provides a carry out fixed location structure to drill point and brill body, realized the quick assembly disassembly of drill point, reduced the time of changing the drill point, improved the availability factor of equipment, life is longer, and stability is better.

Description

Positioning structure for fixing drill tip and drill body

Technical Field

The utility model relates to a machining cutter field. More specifically, the present invention relates to a positioning structure for fixing a drill tip and a drill body.

Background

The drilling tool is a tool used for drilling holes, drilling holes and the like, and generally comprises a drill body and a cutting edge part which are matched, wherein the cutting edge part is arranged on the drill body through a matched screw or welding mode and the like. Therefore, the cutting edge is detached, the cutting edge is removed by heating at high temperature, or the screw is loosened for replacement, so that time and labor are wasted. In addition, in the machining process, when the screw is abnormal and cannot be taken out, the cutting edge part is replaced very difficultly. This structure realizes quick assembly disassembly, effectively solves this problem.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later.

In order to achieve these objects and other advantages in accordance with the present invention, there is provided a positioning structure for fixing a drill tip and a drill body, including:

the positioning column is oppositely arranged on the drill tip;

a limiting groove which is arranged at one end of the drill body and can be used for the positioning column to extend into, and second chip grooves which are communicated with the first chip grooves on the drill rod are arranged at two sides of the limiting groove, so that the limiting groove is in a dovetail shape in space;

third chip grooves matched with the drill tips are formed in two opposite sides of the positioning column;

the positioning column is in interference fit with the limiting groove.

Preferably, the bottom of the positioning column is provided with a protruding clamping part on at least one side edge matched with the chip groove;

and a groove matched with the clamping part is arranged at the edge of the bottom of the limiting groove.

Preferably, the top of the drill tip is oppositely provided with a mounting groove matched with the mounting wrench.

Preferably, the drill tip is provided with a fixing surface matched with the rotary mounting direction of the drill tip on the side combined with the third chip groove;

the drill body is provided with a positioning groove matched with the fixing surface;

the fixing device comprises a fixing surface and a positioning groove, wherein one side of the fixing surface is provided with a fixing point with the largest radian, and the positioning groove is provided with a stopping part for stopping the fixing point.

The utility model discloses at least, include following beneficial effect: one of the two, the utility model discloses a drill point and the quick assembly disassembly of the brill body have reduced the time of changing the drill point, have improved the availability factor of equipment, and life is longer, and stability is better.

And secondly, the utility model discloses a design to location structure for the drill point can not adopt the screw to be connected with the brill body, and is more convenient, and the stability of connection is better, and then guarantees convenience and the cooperation degree of installation and dismantlement between the part.

Thirdly, the utility model discloses a further inject the reference column and the structure of injecing the groove, accomplished level and vertical ascending fixed structure, structure complex stability is better.

Fourthly, the utility model discloses a cooperation of stationary plane and limiting surface, and then guarantee equipment structure spare at rotatory in-process complex stability to and the moment of torsion transmission, the part can not produce the problem that position change or chucking receive the influence because of the rotation.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a drill tip according to an embodiment of the present invention;

FIG. 2 is a schematic view of the other side of the drill tip according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a drill body according to an embodiment of the present invention;

FIG. 4 is a partially enlarged schematic view of FIG. 3;

fig. 5 is a schematic structural diagram of a drill point and a drill body in another embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It should be noted that in the description of the present invention, the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, such as "connected," which may be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or a connection between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention in a specific context.

Furthermore, in the present disclosure, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature in direct contact with the first and second features, or in indirect contact with the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Fig. 1-2 show an implementation form of a positioning structure for fixing a drill tip and a drill body according to the present invention, which includes:

the positioning column 2 is oppositely arranged on the drill tip 1 and is used for connecting the drill tip and the drill body, so that the connection stability of the positioning column is better in work, and the rotation stress in work can be uniformly transmitted to the drill body;

the drill bit is characterized in that a limiting groove 4 which is arranged at one end of a drill body 3 and into which a positioning column can extend is provided, two sides of the limiting groove are provided with second chip grooves 5 communicated with first chip grooves (not shown) on a drill rod, so that the limiting groove is in a dovetail shape in space, in the structure, the connection between parts is realized through the matching of the limiting groove and the positioning column, and the structural design of the two chip grooves ensures that the chip removal operation in drilling can be completed through the spatial matching of the chip grooves at the later stage;

third chip removal grooves 6 matched with the drill tip are formed in two opposite sides of the positioning column, and the third chip removal grooves have the effects of completing excessive chip removal of the drill tip and the drill rod and ensuring smoothness of drilling;

the positioning column is in interference fit with the limiting groove and is used for being in interference fit (under the interference fit, the maximum outer diameter of the positioning column is configured to be slightly larger than the maximum inner diameter of the limiting groove, the positioning column and the limiting groove are connected through applying a positioning external acting force, and the structural stability after the connection is ensured), so that the stability of the fit between the positioning column and the limiting groove is better, namely the stability after the connection and the insertion between structural members is ensured through the interference fit.

In another example, as shown in fig. 1 and 4, the bottom of the positioning column is provided with a protruding clamping part 7 on at least one side edge matched with the chip groove, in this structure, the edge of one side of the bottom of the positioning column is larger than the bottom of the limiting groove and is positioned to match with the rotating direction when the positioning column is installed, and the clamping limitation on the component is completed;

the edge of the bottom of the limiting groove is provided with a groove 8 matched with the clamping part, on the premise that the positioning column is in interference fit with the limiting groove, the problem that the protruding part of the positioning column cannot be connected with the limiting groove can occur, the protruding clamping part can be just clamped into the groove by arranging the groove at the bottom of the limiting groove, so that the protruding clamping part and the groove can be further connected and fixed by matching the protruding clamping part and the groove under the condition that the interference between the protruding clamping part and the groove is reduced after long-term use, the fixing and the stability of the positioning column in the longitudinal direction and the horizontal direction are ensured, and meanwhile, in the actual operation, due to the structural design of the second chip groove and the third chip groove, the two chip grooves can have staggered spaces when being installed, so that when the drill tip and the drill body are installed, the drill tip and the drill body are vertical in space, the third chip groove on the drill tip have a vertical avoiding space, the positioning column can extend into the limiting groove under the action of external force, and because of the function of the second chip groove, the protruding clamping part is temporarily not contacted with the limiting groove in space, and the clamping part can rotate into the groove by rotating the drill point, so that the fixed connection of the two is completed.

As shown in fig. 1-2, in another example, the drill tip top is provided with a mounting groove 9 opposite to the mounting wrench, and under this structure, the mounting groove can extend into the mounting groove through two ends of the wrench, so that the drill tip can be rotatably mounted in the limiting groove by the rotating wrench, the matching of the structural member is completed, and when the drill tip is dismounted, the drill tip can be rotated reversely by the wrench, the positioning effect meets the use requirement, and the positioning effect is better.

In another example, as shown in fig. 1-4, the drill tip is provided with a fixing surface 10 matched with the rotation mounting direction of the drill tip on the side which is combined with the third chip groove;

the drill body is provided with a positioning groove 11 matched with the fixing surface;

wherein, the stationary plane one side is provided with the biggest fixed point of radian 12, be provided with backstop portion 13 that blocks the fixed point on the constant head tank, under this kind of structure, through stationary plane and constant head tank cooperation, further prescribe the drill point in the space, prescribe a limit to its rotatory position through the fixed point position of matched with between the two simultaneously, prevent it at rotatory in-process simultaneously, the drill point receives the problem that the stability of being connected of rotational action power and drill body receives the influence, the deformation that takes place is to the influence that connection stability caused, in this kind of scheme, prescribe a limit to the reference column and prescribe a limit to the groove through the structure to the reference column, make the structural stability of equipment good.

The above embodiments are merely illustrative of a preferred embodiment, but not limiting. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (4)

1. A positioning structure for fixing a drill tip and a drill body, comprising:

the positioning column is oppositely arranged on the drill tip;

a limiting groove which is arranged at one end of the drill body and can be used for the positioning column to extend into, and second chip grooves which are communicated with the first chip grooves on the drill rod are arranged at two sides of the limiting groove, so that the limiting groove is in a dovetail shape in space;

third chip grooves matched with the drill tips are formed in two opposite sides of the positioning column;

the positioning column is in interference fit with the limiting groove.

2. A positioning structure for fixing a drill tip to a drill body as set forth in claim 1, wherein said positioning post base is provided with a protruding engagement portion on at least one side edge which is fitted with a chip groove;

and a groove matched with the clamping part is arranged at the edge of the bottom of the limiting groove.

3. The positioning structure for fixing the drill tip and the drill body as set forth in claim 2, wherein the top of the drill tip is oppositely provided with mounting grooves for fitting with a mounting wrench.

4. A positioning structure for fixing a drill tip and a drill body as set forth in claim 3, wherein the drill tip is provided with a fixing surface in cooperation with a rotation mounting direction thereof on a side which is in side engagement with the third chip groove;

the drill body is provided with a positioning groove matched with the fixing surface;

the fixing device comprises a fixing surface and a positioning groove, wherein one side of the fixing surface is provided with a fixing point with the largest radian, and the positioning groove is provided with a stopping part for stopping the fixing point.

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