CN220295941U - Fixed mounting structure of drilling machine drill bit - Google Patents
Fixed mounting structure of drilling machine drill bit Download PDFInfo
- Publication number
- CN220295941U CN220295941U CN202321352351.XU CN202321352351U CN220295941U CN 220295941 U CN220295941 U CN 220295941U CN 202321352351 U CN202321352351 U CN 202321352351U CN 220295941 U CN220295941 U CN 220295941U
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- drill bit
- mounting sleeve
- drilling machine
- limiting
- cavity
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- 238000005553 drilling Methods 0.000 title claims abstract description 21
- 230000000670 limiting effect Effects 0.000 claims abstract description 48
- 238000009434 installation Methods 0.000 claims description 38
- 101100387915 Caenorhabditis elegans dop-4 gene Proteins 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
The utility model discloses a fixed mounting structure of a drilling machine drill bit, which comprises a mounting sleeve fixedly connected with a power output shaft of the drilling machine and a drill bit body, wherein a limiting elastic piece is fixedly connected to the mounting sleeve, the limiting elastic piece comprises a limiting clamping head, the limiting clamping head is positioned in the mounting sleeve, a mounting sleeve column is arranged on the drill bit body, a limiting clamping hole is formed in the mounting sleeve column, the mounting sleeve column is in threaded connection with the mounting sleeve, and the limiting clamping head is embedded into the limiting clamping hole. The utility model relates to the technical field of drill bit mounting structures, and has the characteristics of convenience in mounting and stability in fixing a drill bit after long-time use.
Description
Technical Field
The utility model relates to the technical field of drill bit mounting structures, in particular to a fixed mounting structure of a drill bit of a drilling machine.
Background
The drilling machine refers to a machine tool which mainly uses a drill bit to machine holes on a workpiece. Typically the drill bit rotates as the primary motion and the drill bit moves axially as the feed motion. Currently, the drill bit is installed on a drilling machine in a mode of screw fastening and fastening through a drill chuck;
the screw fastening finger is characterized in that a mounting sleeve is arranged on a power output shaft of the drilling machine, a mounting hole is formed in the mounting sleeve, a mounting sleeve column is arranged on the drill bit, a screw hole is formed in the mounting sleeve column, the mounting sleeve column penetrates into the mounting sleeve, the mounting hole corresponds to the screw hole, the screw penetrates through the mounting hole through a tool and is in threaded connection with the screw hole to realize the mounting of the mounting sleeve column and the screw hole, and the mounting mode is that the mounting is inconvenient due to the fact that the tool is needed during the mounting;
the drill chuck fastening finger is fixedly connected with the power output shaft of the drilling machine, a drill bit is placed in the drill chuck, and the drill bit is clamped and fastened through the drill chuck, so that the drill chuck is not firmly clamped after the drill chuck is used for a long time, and the drill chuck needs to be replaced because the drill chuck can be worn when the drill bit rotates at a high speed;
based on the defects, the application is proposed to solve.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, the present utility model aims to provide a fixing and mounting structure which is convenient to mount and which is stable and stable for fixing a drill bit after long-term use.
The technical scheme adopted by the utility model for achieving the purpose is as follows: the utility model provides a fixed mounting structure of drilling machine drill bit, includes installation sleeve and the drill bit body with drilling machine power take off shaft fixed connection, fixedly connected with spacing bullet spare on the installation sleeve, including spacing dop in the spacing bullet spare, spacing dop is located inside the installation sleeve, be equipped with the installation sleeve on the drill bit body, be equipped with spacing card hole on the installation sleeve, installation sleeve threaded connection is in the installation sleeve, just spacing dop gomphosis to in the spacing card hole.
In the above technical scheme, for being convenient for the installation sleeve post passes through spacing dop, spacing dop is equipped with the inclined plane, just the inclined plane sets up downwards.
In the above technical scheme, in order to realize threaded connection between the installation sleeve and the installation sleeve post be equipped with first screw thread on the inner wall of installation sleeve, be equipped with the second screw thread on the installation sleeve post, first screw thread with second screw thread cooperation.
In the above technical scheme, the specific structure of the limiting elastic piece is as follows:
the limiting elastic piece further comprises an outer part, a spring, a movable column and a pull ring, wherein the outer part is fixedly connected to the mounting sleeve, an elastic cavity is arranged in the outer part, the outer part is close to the mounting sleeve and is provided with a sliding cavity, a first sliding hole is formed between the sliding cavity and the elastic cavity, a second sliding hole is formed in the outer part and communicated with the elastic cavity, the limiting clamping head is slidably connected in the sliding cavity, one end of the movable column penetrates through the second sliding hole, the first sliding hole and is fixedly connected with the limiting clamping head, a round table is fixedly connected to the part, located in the elastic cavity, of the movable column, a spring is sleeved on the round table, one end of the spring is in abutting contact with the round table, the other end of the spring is in abutting contact with the cavity wall of the elastic cavity, and the other end of the movable column is located outside and is fixedly connected with the pull ring.
The end of the outer part facing the outside is provided with a groove, the movable column is provided with a clamping block corresponding to the groove, and the clamping block is embedded in the groove.
In the technical scheme, in order to further promote the smoothness of the installation sleeve column passing through the limiting clamp head, the top of the installation sleeve column adopts a conical structure.
In the above technical scheme, for promoting spacing bullet piece to the spacing effect of drill bit body, spacing bullet piece adopts two sets of, two sets of spacing bullet piece with installation telescopic central line symmetry sets up.
Compared with the prior art, the utility model has the beneficial effects that: the installation sleeve column is installed inside the installation sleeve in a threaded connection mode, and when the installation sleeve column is installed through threads, the installation sleeve column can gradually compress the limiting clamping head until the limiting clamping head is embedded into the limiting clamping hole, at the moment, the drill bit can be installed on the drilling machine, the installation sleeve column can be prevented from rotating again through the arrangement of the limiting clamping head, then the drill bit is prevented from falling down due to the fact that the rotation direction of the drill bit is the same as the direction of the threads when the drill bit works, and the sliding wire caused by the fact that the rotation direction of the drill bit is opposite to the direction of the threads can be avoided, the installation of the drill bit is carried out without the aid of tools, the installation is convenient, the installation is more stable compared with the existing method of installing the drill bit through the drill clamping head, and the installation of the drill bit is stable after long-time use.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a bit body according to the present utility model;
FIG. 3 is a schematic view of a limiting spring according to the present utility model;
FIG. 4 is a schematic view of another state of the limiting spring according to the present utility model;
FIG. 5 is a schematic view of a mounting sleeve according to the present utility model;
fig. 6 is a schematic cross-sectional view of a limiting spring according to the present utility model.
In the figure: 1 installation sleeve, 2 drill bit body, 3 spacing bullet piece, 4 spacing dop, 5 installation sleeve post, 6 spacing draw-in hole, 7 inclined plane, 8 first screw thread, 9 second screw thread, 10 outer part, 11 spring, 12 movable post, 13 pull ring, 14 elastic cavity, 15 first sliding hole, 16 second sliding hole, 17 round platform, 18 recess, 19 fixture block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, a fixed mounting structure of a drilling machine drill bit comprises a mounting sleeve 1 fixedly connected with a power output shaft of the drilling machine and a drill bit body 2, wherein a limiting elastic piece 3 is fixedly connected to the mounting sleeve 1, the limiting elastic piece 3 comprises a limiting clamping head 4, the limiting clamping head 4 is located inside the mounting sleeve 1, a mounting sleeve column 5 is arranged on the drill bit body 2, a limiting clamping hole 6 is formed in the mounting sleeve column 5, the mounting sleeve column 5 is in threaded connection with the mounting sleeve 1, the limiting clamping head 4 is embedded into the limiting clamping hole 6, the mounting sleeve column 5 can gradually compress the limiting clamping head 4 until the limiting clamping head 4 is embedded into the limiting clamping hole 6, at the moment, the drill bit can be mounted on the drilling machine, the limiting clamping head 4 can be prevented from rotating again through the arrangement of the limiting clamping head 4, the drill bit is prevented from falling down due to the same rotation direction of the drill bit and the reverse rotation direction of the drill bit, the drill bit is prevented from being mounted by means of a tool, and the drill bit is convenient to install and stable in the mounting process.
In this embodiment, for being convenient for pass through spacing dop 4 with installation sleeve post 5, spacing dop 4 is equipped with inclined plane 7, and inclined plane 7 sets up downwards, for further promoting the smooth and easy of installation sleeve post 5 through spacing dop 4 again, the toper structure is adopted at the top of installation sleeve post 5, simultaneously, for realizing the threaded connection between installation sleeve 1 and the installation sleeve post 5, be equipped with first screw thread 8 on the inner wall of installation sleeve 1, be equipped with second screw thread 9 on the installation sleeve post 5, first screw thread 8 cooperates with second screw thread 9.
In order to improve the limiting effect of the limiting elastic pieces 3 on the drill bit body 2, the limiting elastic pieces 3 are arranged in two groups, and the two groups of limiting elastic pieces 3 are symmetrically arranged on the central line of the mounting sleeve 1.
The embodiment also provides a concrete structure of the limiting elastic piece 3, the limiting elastic piece 3 comprises an outer part 10, a spring 11, a movable column 12 and a pull ring 13 besides the limiting clamping head 4, the outer part 10 is fixedly connected to the mounting sleeve 1, an elastic cavity 14 is arranged in the outer part 10, a sliding cavity is arranged in the outer part 10 close to the mounting sleeve 1, a first sliding hole 15 is arranged between the sliding cavity and the elastic cavity 14, a second sliding hole 16 is arranged on the outer part 10 and communicated with the elastic cavity 14, the limiting clamping head 4 is slidingly connected in the sliding cavity, one end of the movable column 12 passes through the second sliding hole 16 and the first sliding hole 15 and is fixedly connected with the limiting clamping head 4, a round table 17 is fixedly connected to a part, positioned in the elastic cavity 14, of the movable column 12, a spring 11 is sleeved on the round table 17, one end of the spring 11 is in contact with the round table 17, and the other end of the spring 11 is in contact with the cavity wall of the elastic cavity 14, the other end of the movable column 12 is positioned outside and fixedly connected with a pull ring 13, thus the movable column 12 can be pulled by pulling the pull ring 13, at the moment, the spring 11 positioned in the elastic cavity 14 is compressed, the limit clamping head 4 slides in the sliding cavity, namely, when a drill bit is required to be disassembled, the limit clamping head 4 is pulled out of the limit clamping hole 6 in the mode, further, the end part of the outer part 10 facing outside is provided with a groove 18, the corresponding groove 18 on the movable column 12 is provided with a clamping block 19, the clamping block 19 is embedded in the groove 18, thus when the movable column 12 is pulled, the clamping block 19 can be pulled out of the groove 18, then the movable column 12 is rotated, the clamping block 19 is dislocated with the groove 18, at the moment, the piston rod cannot be pulled down by the elasticity of the spring 11, so the limit clamping head 4 can not be embedded in the limit clamping groove all the time, the pull ring 13 is not required to be pulled all the time, the drill bit is more convenient to disassemble.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The utility model provides a fixed mounting structure of drilling machine drill bit, includes installation sleeve (1) and drill bit body (2) with drilling machine power take off shaft fixed connection, its characterized in that: the utility model discloses a circular truncated cone spring is characterized in that a limiting elastic piece (3) is fixedly connected with a mounting sleeve (1), the limiting elastic piece (3) comprises a limiting clamping head (4), an outer part (10), a spring (11), a movable column (12) and a pull ring (13), the outer part (10) is fixedly connected with the mounting sleeve (1), an elastic cavity (14) is arranged in the outer part (10), a sliding cavity is arranged in the outer part (10) and is close to the mounting sleeve (1), a first sliding hole (15) is arranged between the sliding cavity and the elastic cavity (14), a second sliding hole (16) is arranged on the outer part (10) and is communicated with the elastic cavity (14), the limiting clamping head (4) is in sliding connection with the sliding cavity, one end of the movable column (12) penetrates through the second sliding hole (16), the first sliding hole (15) and is fixedly connected with the limiting clamping head (4), a part positioned in the elastic cavity (14) is fixedly connected with a sliding cavity (17), the sliding cavity (17) is arranged on the movable column (12), the sliding cavity is abutted against one end of the spring (11) and one end of the circular truncated cone spring (11), the movable column (12) other end is located the external world and fixedly connected with pull ring (13), be equipped with installation loop post (5) on drill bit body (2), be equipped with spacing draw-in groove (6) on the installation loop post (5), installation loop post (5) threaded connection is in installation sleeve (1), just spacing dop (4) gomphosis extremely in spacing draw-in groove (6), spacing dop (4) are equipped with inclined plane (7), just inclined plane (7) set up downwards.
2. The fixed mounting structure of a drill bit of a drilling machine of claim 1, wherein: the mounting sleeve is characterized in that a first thread (8) is arranged on the inner wall of the mounting sleeve (1), a second thread (9) is arranged on the mounting sleeve column (5), and the first thread (8) is matched with the second thread (9).
3. The fixed mounting structure of a drill bit of a drilling machine of claim 1, wherein: the end of the outer part (10) facing the outside is provided with a groove (18), the movable column (12) is provided with a clamping block (19) corresponding to the groove (18), and the clamping block (19) is embedded in the groove (18).
4. The fixed mounting structure of a drill bit of a drilling machine of claim 1, wherein: the top of the mounting sleeve column (5) adopts a conical structure.
5. The fixed mounting structure of a drill bit of a drilling machine of claim 1, wherein: the limiting elastic pieces (3) are arranged in two groups, and the two groups of limiting elastic pieces (3) are symmetrically arranged on the middle line of the mounting sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321352351.XU CN220295941U (en) | 2023-05-31 | 2023-05-31 | Fixed mounting structure of drilling machine drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321352351.XU CN220295941U (en) | 2023-05-31 | 2023-05-31 | Fixed mounting structure of drilling machine drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220295941U true CN220295941U (en) | 2024-01-05 |
Family
ID=89372249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321352351.XU Active CN220295941U (en) | 2023-05-31 | 2023-05-31 | Fixed mounting structure of drilling machine drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220295941U (en) |
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2023
- 2023-05-31 CN CN202321352351.XU patent/CN220295941U/en active Active
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