CN220462333U - Cutting drill with replaceable drill handles of different lengths - Google Patents

Abstract

The utility model relates to the technical field of cutting drills, in particular to a cutting drill capable of replacing drill handles with different lengths, which comprises a cutting drill body, a drill handle length adjusting mechanism positioned above the cutting drill body and a drill bit replacing mechanism positioned below the cutting drill body, wherein the cutting drill body is provided with a drill handle; the bottom of cutting drill body is provided with the cutting drill bit, drill shank length adjustment mechanism includes flexible drill shank, the top of flexible drill shank has cup jointed the drill shank sleeve, the regulation inserted bar is installed to the junction of drill shank sleeve and flexible drill shank, the outside of adjusting the inserted bar is installed first connecting spring. According to the length adjusting mechanism of the drill handle, when the length is required to be adjusted, the adjusting plug rod can be pulled out outwards to be separated from the adjusting jack, so that the lengths of the telescopic drill handle and the drill handle sleeve can be adjusted.

Description

Cutting drill with replaceable drill handles of different lengths

Technical Field

The utility model relates to the technical field of cutting drills, in particular to a cutting drill with replaceable drill handles of different lengths.

Background

The cutting bit is a tool for drilling a through hole or a blind hole in a solid material and reaming an existing hole, and the existing cutting bit mainly comprises a twist drill, a flat drill, a deep hole drill, a reamer, a center drill, a hollow drill and the like.

According to the search, in the drilling and milling cutting tool with the publication number of CN105665804B, the utility model is suitable for the technical field of cutting tools, and particularly relates to a drilling and milling cutting tool applicable to the field of metal base plate processing, which comprises a blade diameter part, wherein the blade diameter part is provided with a main spiral groove, the main spiral groove comprises at least two right-handed spiral grooves, the head shape at the front end of the blade diameter part is provided with two symmetrically arranged cutting teeth, the cutting teeth are provided with a first dihedral angle and a second dihedral angle, the second dihedral angle is larger than the first dihedral angle, the front end of the blade diameter part is provided with a first relief angle and a second relief angle, and the first relief angle is close to a cutting edge relative to the second relief angle. The drilling and milling cutting tool provided by the utility model has the advantages that on the premise of ensuring the thickness of the cutting edge and the chip removal space, the sharpness of the cutting edge is improved, the drilling processing is realized, the integral strength of the cutting edge can be improved due to the design of double relief angles, the friction can be reduced, the chip removal space is increased, and further, the cutting edge diameter part has higher sharpness and good processing performance on the premise of ensuring the strength and the rigidity.

However, most of the existing cutting drills are integrated, the edge part of the drill bit is easy to damage when cutting, the whole cutting drill is scrapped, resources are wasted, and the cutting drills with different lengths are often required to be assembled due to different machining sizes, so that the cutting efficiency is affected due to the fact that the drill handles with different lengths are more troublesome to replace and disassemble.

Disclosure of Invention

The present utility model is directed to a cutting drill with replaceable drill shanks of different lengths, to solve the above-mentioned problems associated with the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a cutting drill capable of replacing drill handles with different lengths comprises a cutting drill body, a drill handle length adjusting mechanism positioned above the cutting drill body and a drill bit replacing mechanism positioned below the cutting drill body;

the bottom of the cutting drill body is provided with a cutting drill bit.

As still further aspects of the utility model: the length adjusting mechanism of the drill shank comprises a telescopic drill shank, a drill shank sleeve is sleeved above the telescopic drill shank, an adjusting insert rod is arranged at the joint of the drill shank sleeve and the telescopic drill shank, and a first connecting spring is arranged outside the adjusting insert rod.

As still further aspects of the utility model: the left side and the right side of the telescopic drill handle are provided with adjusting jacks.

As still further aspects of the utility model: the drill bit replacing mechanism comprises a threaded connecting block, and a limiting rod is arranged in the threaded connecting block.

As still further aspects of the utility model: a pressing rod is arranged above the limiting rod.

As still further aspects of the utility model: the two pressing rods are arranged, and a second connecting spring is connected between the two pressing rods.

As still further aspects of the utility model: the connecting block is arranged at the connecting part of the telescopic drill handle and the cutting drill body.

The above description shows that, by the above technical solution of the present application, the technical problem to be solved by the present application can be necessarily solved.

Meanwhile, through the technical scheme, the utility model has at least the following beneficial effects:

according to the length adjusting mechanism of the drill shank, when the length adjustment is needed, the adjusting plug rod can be pulled out outwards to separate from the adjusting jack, so that the lengths of the telescopic drill shank and the drill shank sleeve can be adjusted;

according to the utility model, through the bit replacing mechanism, when the cutting bit is required to be replaced, the pressing rod can be pressed, the second connecting spring is compressed, and then the cutting bit is rotated to be separated from the threaded connecting block, so that the replacement of the cutting bit can be completed.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the length adjustment mechanism of the drill shank of the present utility model;

FIG. 3 is a schematic view of the structure of the present utility model, partially enlarged at A in FIG. 2;

fig. 4 is a schematic structural view of the bit changing mechanism of the present utility model.

In the figure: 1. cutting drill bits; 2. cutting the drill body; 3. a connecting block; 4. a drill shank length adjustment mechanism; 401. a telescopic drill shank; 402. a drill shank sleeve; 403. adjusting the jack; 404. adjusting the inserted link; 405. a first connecting spring; 5. a bit changing mechanism; 501. a threaded connecting block; 502. a limit rod; 503. a second connecting spring; 504. pressing the pressing rod.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1, the present utility model provides a technical solution: a cutting drill capable of replacing drill handles with different lengths, which comprises a cutting drill body 2, a drill handle length adjusting mechanism 4 positioned above the cutting drill body 2 and a drill bit replacing mechanism 5 positioned below the cutting drill body 2;

the bottom of the cutting drill body 2 is provided with a cutting drill bit 1, and the joint of the telescopic drill shank 401 and the cutting drill body 2 is provided with a connecting block 3.

Example two

The scheme in the first embodiment is further described below in conjunction with a specific working manner, and the details are described below:

as shown in fig. 2 and 3, as a preferred embodiment, further, the drill shank length adjusting mechanism 4 includes a telescopic drill shank 401, a drill shank sleeve 402 is sleeved above the telescopic drill shank 401, an adjusting insert rod 404 is installed at a joint of the drill shank sleeve 402 and the telescopic drill shank 401, a first connecting spring 405 is installed outside the adjusting insert rod 404, adjusting insertion holes 403 are formed in both left and right sides of the telescopic drill shank 401, and when length adjustment is required, the adjusting insert rod 404 can be pulled out outwards to separate from the adjusting insertion holes 403 by the aid of the provided drill shank length adjusting mechanism 4, so that the lengths of the telescopic drill shank 401 and the drill shank sleeve 402 can be adjusted.

As shown in fig. 1 and 4, as a preferred embodiment, further, the bit replacing mechanism 5 includes a threaded connection block 501, a limit rod 502 is disposed in the threaded connection block 501, a pressing rod 504 is disposed above the limit rod 502, two pressing rods 504 are connected with a second connection spring 503, when the cutting bit 1 needs to be replaced by the bit replacing mechanism 5, the pressing rod 504 can be pressed, the second connection spring 503 is compressed, and then the cutting bit 1 is rotated to be separated from the threaded connection block 501, so that the replacement of the cutting bit 1 can be completed.

From the above, it can be seen that:

the utility model aims at the technical problems that: most of the existing cutting drills are integrated, the edge part of the drill bit is easy to damage when cutting is performed, the whole cutting drill is scrapped, resources are wasted, and drill handles with various lengths are often required to be arranged due to different machining sizes and lengths, so that replacement and disassembly are more troublesome; the technical scheme of each embodiment is adopted. Meanwhile, the implementation process of the technical scheme is as follows:

when the cutting drill body 2 is used, through the drill shank length adjusting mechanism 4, when the length adjustment is needed, the adjusting insert rod 404 can be pulled out outwards to separate from the adjusting insert hole 403, so that the lengths of the telescopic drill shank 401 and the drill shank sleeve 402 can be adjusted;

through above-mentioned setting, this application must solve above-mentioned technical problem, simultaneously, realizes following technical effect:

according to the utility model, through the drill shank length adjusting mechanism 4, when the length adjustment is required, the adjusting plug rod 404 can be pulled out outwards to be separated from the adjusting jack 403, so that the lengths of the telescopic drill shank 401 and the drill shank sleeve 402 can be adjusted;

according to the utility model, through the drill bit replacing mechanism 5, when the cutting drill bit 1 needs to be replaced, the pressing rod 504 can be pressed, the second connecting spring 503 is compressed, and then the cutting drill bit 1 is rotated to be separated from the threaded connecting block 501, so that the replacement of the cutting drill bit 1 can be completed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Cutting drill with replaceable drill shanks of different lengths, characterized in that it comprises a cutting drill body (2), and a shank length adjustment mechanism (4) located above the cutting drill body (2) and a bit replacement mechanism (5) located below the cutting drill body (2);

the bottom of the cutting drill body (2) is provided with a cutting drill bit (1).

2. The cutting drill with replaceable drill shanks of different lengths according to claim 1, characterized in that the shank length adjustment mechanism (4) comprises a telescopic drill shank (401), a shank sleeve (402) is sleeved over the telescopic drill shank (401), an adjustment insert (404) is mounted at the joint of the shank sleeve (402) and the telescopic drill shank (401), and a first connecting spring (405) is mounted outside the adjustment insert (404).

3. Cutting drill with replaceable drill shanks of different lengths according to claim 2, characterized in that the left and right sides of the telescopic drill shank (401) are provided with adjusting jacks (403).

4. Cutting drill with replaceable drill shanks of different lengths according to claim 1, characterized in that the bit changing mechanism (5) comprises a threaded connection block (501), the interior of which threaded connection block (501) is provided with a stop lever (502).

5. The cutting drill with replaceable drill shanks of different lengths according to claim 4, characterized in that a pressing bar (504) is arranged above the limit bar (502).

6. Cutting drill with exchangeable drill shanks of different lengths according to claim 5, characterized in that two pressing bars (504) are provided, between which two pressing bars (504) a second connecting spring (503) is connected.

7. Cutting drill with replaceable drill shanks of different lengths according to claim 2, characterized in that the connection of the telescopic drill shank (401) with the cutting drill body (2) is provided with a connection block (3).