CN210755383U - Combined type hole opening drill bit with high hardness - Google Patents
Combined type hole opening drill bit with high hardness Download PDFInfo
- Publication number
- CN210755383U CN210755383U CN201921091344.2U CN201921091344U CN210755383U CN 210755383 U CN210755383 U CN 210755383U CN 201921091344 U CN201921091344 U CN 201921091344U CN 210755383 U CN210755383 U CN 210755383U
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- CN
- China
- Prior art keywords
- reamer
- drill
- sleeve
- wall
- thread bush
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000010030 laminating Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 7
- 238000010079 rubber tapping Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
A combined type tapping drill bit with high hardness comprises a drill handle, a drill rod, a first hole expanding cutter, a second hole expanding cutter and a positioning drill bit, wherein the drill handle is connected with the drill rod, and the other end of the drill rod is connected with the positioning drill bit; the first hole expanding cutter is arranged on the drill handle, a first threaded sleeve is arranged on the inner wall of the rear end of the first hole expanding cutter, and one end of the first threaded sleeve penetrates through the inner wall of the first hole expanding cutter; the second reamer center is equipped with the sliding sleeve, and the second reamer passes through sliding sleeve and drilling rod swing joint, is equipped with the second thread bush on the outer wall of second reamer one end, and a second thread bush inner chamber one end threaded connection has second knob screw, and second thread bush one end runs through the outer wall of second reamer, through sliding to first reamer one end the second reamer for first thread bush docks with the second thread bush, through adjusting second knob screw, makes second knob screw displacement to in the first thread bush, thereby with first reamer and second reamer fixed connection, and can change the second reamer and carry out the trompil.
Description
Technical Field
The utility model belongs to the technical field of cutting tool, concretely relates to combination formula trompil drill bit with high rigidity.
Background
The drill bit is a punching tool frequently used in daily production, and the tapping drill bit is mainly used for processing a saw cutting type special circular saw of a circular hole, and is simple and flexible to operate, convenient to carry, safe and wide in application. The drill bit for drilling holes is mounted on a common electric drill, and can conveniently and randomly cut round holes, square holes, triangular holes, straight lines and curves on any curved surfaces such as planes and spherical surfaces of various plates such as copper, iron, stainless steel, organic glass and the like. The size of the reamer of the traditional tapping drill bit is single, if when setting up circular holes of different sizes, then need to change different sizes tapping drill bit and carry out the trompil, so not only influenced trompil efficiency, increased the cost moreover.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses a combination formula trompil drill bit with high rigidity can realize not unidimensional trompil demand.
The specific technical scheme is as follows:
a combined type hole opening drill bit with high hardness comprises a drill handle, a drill rod, a first hole expanding cutter, a second hole expanding cutter and a positioning drill bit, wherein one end of the drill handle is connected with the drill rod, a fixing sleeve is arranged at one end, close to the drill handle, of the drill rod, the fixing sleeve is of a hollow cylindrical structure, the side wall of one end of the fixing sleeve is connected with the drill rod, the other end of the fixing sleeve is arranged in an opening mode, a screw hole is formed in the side wall of the fixing sleeve, a first knob screw is connected to the screw hole in a threaded mode, the drill rod is of a prismatic structure, and the other end of; the first reaming cutter is fixedly arranged on the drill handle and is positioned at one end close to the positioning drill bit, a reaming cutting edge is arranged at the front end of the first reaming cutter, a first threaded sleeve is fixedly arranged on the inner wall of the rear end of the first reaming cutter, the first threaded sleeve is of a through cavity structure, threads are arranged in the inner cavity of the first threaded sleeve, and one end of the first threaded sleeve penetrates through the inner wall of the first reaming cutter; the diameter of the second reamer is larger than that of the first reamer, the front end of the second reamer is also provided with a reamer cutting edge, the center of the second reamer is provided with a sliding sleeve, the sliding sleeve extends towards the rear end of the second reamer, the sliding sleeve is of a through cavity structure, the size and shape of the inner wall of the sliding sleeve are matched with those of the drill rod, so that the second reamer is movably connected with the drill rod through the sliding sleeve, the sliding sleeve and the drill rod are matched to limit the second reamer in the radial direction, the size of the sliding sleeve is matched with the size of the inner cavity of the fixed sleeve, one end of the sliding sleeve is embedded into the fixed sleeve, the first knob screw is adjusted, the second reamer is limited in the axial direction, a second threaded sleeve is fixedly arranged on the outer wall of one end of the second reamer, the second threaded sleeve is of a through cavity structure, and the inner cavity end of the second threaded sleeve is in threaded connection with a second knob screw, and the one end of second thread bush runs through the outer wall of second reamer, the position of second thread bush on the second reamer is corresponding with the position of first thread bush on first reamer, through sliding to first reamer one end the second reamer for the inner wall of second reamer sets up with the outer wall laminating of first reamer, just first thread bush docks with the second thread bush, through adjusting second knob screw, makes second knob screw front end displacement to in the first thread bush, thereby with first reamer and second reamer fixed connection, the reaming cutting edge part of first reamer all is located the second reamer.
Furthermore, the front end of the positioning drill bit is provided with a cutting edge, and two chip grooves are symmetrically formed in the side wall of the positioning drill bit.
Further, the drill rod is in a quadrangular structure.
Furthermore, the number of the first threaded sleeve and the second threaded sleeve is two, and the two threaded sleeves are equally arranged on two sides of the inner wall of the first hole expanding cutter and two sides of the outer wall of the second hole expanding cutter.
Further, the length of the second knob screw is greater than the length of the second threaded sleeve.
The utility model has the advantages that:
(1) the utility model discloses in through second knob screw fixation between first thread bush and the second thread bush for second reamer and first reamer fixed connection, and the reaming cutting edge part of first reamer all is located the second reamer, thereby can change the second reamer and carry out the trompil, solved the problem that trompil drill bit size is single, need not to change the demand that the trompil drill bit can satisfy different trompils sizes.
(2) The center of second reamer is provided with the sliding sleeve to slide on the drilling rod through the sliding sleeve, through sliding sleeve one end in the inner chamber of fixed cover, manually tighten first knob screw again, thereby can fix second reamer, prevent that it from at first reamer during operation, take place the displacement, effectively guaranteed the normal trompil work of trompil drill bit.
Drawings
Fig. 1 is a schematic structural diagram of the trepanning drill of the present invention.
Fig. 2 is a cross-sectional view of the hole drilling bit when the second hole expanding cutter is separated from the first hole expanding cutter.
Fig. 3 is a cross-sectional view of the hole drilling bit when the second hole expanding cutter is fixed to the first hole expanding cutter.
Detailed Description
For making the technical scheme of the utility model clear more clearly and definitely, it is right to combine the drawing below the utility model discloses further describe, any is right the utility model discloses technical scheme's technical characteristic carries out the scheme that equivalent replacement and conventional reasoning reachs and all falls into the utility model discloses protection scope. The utility model discloses in the fixed connection who mentions, fixed setting is the general connected mode among the mechanical field, and welding, bolt and nut are connected and the screw connection is all can.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Description of the reference numerals
The drill comprises a drill handle 1, a drill rod 2, a fixing sleeve 21, a screw hole 211, a first knob screw 212, a first reamer 3, a first threaded sleeve 31, a reamer blade 32, a second reamer 4, a sliding sleeve 41, a second threaded sleeve 42, a second knob screw 43, a positioning drill 5, a cutting edge 51 and a chip groove 52.
A combined type hole opening drill bit with high hardness comprises a drill handle, a drill rod, a first hole expanding cutter, a second hole expanding cutter and a positioning drill bit, wherein one end of the drill handle is connected with the drill rod, a fixing sleeve is arranged at one end, close to the drill handle, of the drill rod, the fixing sleeve is of a hollow cylindrical structure, the side wall of one end of the fixing sleeve is connected with the drill rod, the other end of the fixing sleeve is arranged in an opening mode, a screw hole is formed in the side wall of the fixing sleeve, a first knob screw is connected to the screw hole in a threaded mode, the drill rod is of a prismatic structure, and the other end of; the first reaming cutter is fixedly arranged on the drill handle and is positioned at one end close to the positioning drill bit, a reaming cutting edge is arranged at the front end of the first reaming cutter, a first threaded sleeve is fixedly arranged on the inner wall of the rear end of the first reaming cutter, the first threaded sleeve is of a through cavity structure, threads are arranged in the inner cavity of the first threaded sleeve, and one end of the first threaded sleeve penetrates through the inner wall of the first reaming cutter; the diameter of the second reamer is larger than that of the first reamer, the front end of the second reamer is also provided with a reamer cutting edge, the center of the second reamer is provided with a sliding sleeve, the sliding sleeve extends towards the rear end of the second reamer, the sliding sleeve is of a through cavity structure, the size and shape of the inner wall of the sliding sleeve are matched with those of the drill rod, so that the second reamer is movably connected with the drill rod through the sliding sleeve, the sliding sleeve and the drill rod are matched to limit the second reamer in the radial direction, the size of the sliding sleeve is matched with the size of the inner cavity of the fixed sleeve, one end of the sliding sleeve is embedded into the fixed sleeve, the first knob screw is adjusted, the second reamer is limited in the axial direction, a second threaded sleeve is fixedly arranged on the outer wall of one end of the second reamer, the second threaded sleeve is of a through cavity structure, and the inner cavity end of the second threaded sleeve is in threaded connection with a second knob screw, and the one end of second thread bush runs through the outer wall of second reamer, the position of second thread bush on the second reamer is corresponding with the position of first thread bush on first reamer, through sliding to first reamer one end the second reamer for the inner wall of second reamer sets up with the outer wall laminating of first reamer, just first thread bush docks with the second thread bush, through adjusting second knob screw, makes second knob screw front end displacement to in the first thread bush, thereby with first reamer and second reamer fixed connection, the reaming cutting edge part of first reamer all is located the second reamer.
Furthermore, the front end of the positioning drill bit is provided with a cutting edge, and two chip grooves are symmetrically formed in the side wall of the positioning drill bit.
Further, the drill rod is in a quadrangular structure.
Furthermore, the number of the first threaded sleeve and the second threaded sleeve is two, and the two threaded sleeves are equally arranged on two sides of the inner wall of the first hole expanding cutter and two sides of the outer wall of the second hole expanding cutter.
Further, the length of the second knob screw is greater than the length of the second threaded sleeve.
The working principle is as follows:
when the second reamer is needed to be used for drilling, the first knob screw is firstly manually unscrewed, the first reamer is made to move towards one end of the second reamer, until the inner wall of the second reamer is attached to the outer wall of the first reamer, the first threaded sleeve is in butt joint with the second threaded sleeve, and the second knob screw is manually screwed, so that the front end of the second knob screw is displaced into the first threaded sleeve, the first reamer is fixedly connected with the second reamer, and the reaming blade part of the first reamer is located in the second reamer, so that the size of the drilled hole of the drilling bit is changed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A combined type hole opening drill bit with high hardness is characterized by comprising a drill handle, a drill rod, a first hole opening cutter, a second hole opening cutter and a positioning drill bit, wherein one end of the drill handle is connected with the drill rod, a fixing sleeve is arranged at one end, close to the drill handle, of the drill rod, the fixing sleeve is of a hollow cylindrical structure, the side wall of one end of the fixing sleeve is connected with the drill rod, the other end of the fixing sleeve is arranged in an opening mode, a screw hole is formed in the side wall of the fixing sleeve, a first knob screw is connected to the screw hole in a threaded mode, the drill rod is of a prismatic structure, and the other end of the; the first reaming cutter is fixedly arranged on the drill handle and is positioned at one end close to the positioning drill bit, a reaming cutting edge is arranged at the front end of the first reaming cutter, a first threaded sleeve is fixedly arranged on the inner wall of the rear end of the first reaming cutter, the first threaded sleeve is of a through cavity structure, threads are arranged in the inner cavity of the first threaded sleeve, and one end of the first threaded sleeve penetrates through the inner wall of the first reaming cutter; the diameter of the second reamer is larger than that of the first reamer, the front end of the second reamer is also provided with a reamer cutting edge, the center of the second reamer is provided with a sliding sleeve, the sliding sleeve extends towards the rear end of the second reamer, the sliding sleeve is of a through cavity structure, the size and shape of the inner wall of the sliding sleeve are matched with those of the drill rod, so that the second reamer is movably connected with the drill rod through the sliding sleeve, the sliding sleeve and the drill rod are matched to limit the second reamer in the radial direction, the size of the sliding sleeve is matched with the size of the inner cavity of the fixed sleeve, one end of the sliding sleeve is embedded into the fixed sleeve, the first knob screw is adjusted, the second reamer is limited in the axial direction, a second threaded sleeve is fixedly arranged on the outer wall of one end of the second reamer, the second threaded sleeve is of a through cavity structure, and the inner cavity end of the second threaded sleeve is in threaded connection with a second knob screw, and the one end of second thread bush runs through the outer wall of second reamer, the position of second thread bush on the second reamer is corresponding with the position of first thread bush on first reamer, through sliding to first reamer one end the second reamer for the inner wall of second reamer sets up with the outer wall laminating of first reamer, just first thread bush docks with the second thread bush, through adjusting second knob screw, makes second knob screw front end displacement to in the first thread bush, thereby with first reamer and second reamer fixed connection, the reaming cutting edge part of first reamer all is located the second reamer.
2. A combined type hole opening drill with high hardness as claimed in claim 1, wherein said positioning drill is provided with a cutting edge at the front end thereof, and two flutes are symmetrically formed on the side wall of the positioning drill.
3. A composite open hole drill bit having high hardness according to claim 1, wherein said drill rod is in the shape of a quadrangular prism.
4. A combination hole opening drill having high hardness according to claim 1, wherein the number of the first thread bush and the second thread bush is two, and they are respectively located on both sides of the inner wall of the first reamer and on both sides of the outer wall of the second reamer.
5. A combination hole opening drill having high hardness according to claim 1, wherein the length of the second knob screw is greater than the length of the second threaded sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091344.2U CN210755383U (en) | 2019-07-12 | 2019-07-12 | Combined type hole opening drill bit with high hardness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091344.2U CN210755383U (en) | 2019-07-12 | 2019-07-12 | Combined type hole opening drill bit with high hardness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210755383U true CN210755383U (en) | 2020-06-16 |
Family
ID=71051971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921091344.2U Expired - Fee Related CN210755383U (en) | 2019-07-12 | 2019-07-12 | Combined type hole opening drill bit with high hardness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210755383U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116441600A (en) * | 2023-06-15 | 2023-07-18 | 中北大学 | A combined layered square hole drill bit |
| CN118123089A (en) * | 2024-02-02 | 2024-06-04 | 浙江贝利工具有限公司 | Tool bit and hole digger thereof |
| CN119387649A (en) * | 2024-09-20 | 2025-02-07 | 镇江市凯越工具有限公司 | A hollow high-speed hole drilling bit |
-
2019
- 2019-07-12 CN CN201921091344.2U patent/CN210755383U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116441600A (en) * | 2023-06-15 | 2023-07-18 | 中北大学 | A combined layered square hole drill bit |
| CN116441600B (en) * | 2023-06-15 | 2023-09-12 | 中北大学 | A combined layered square hole drill bit |
| CN118123089A (en) * | 2024-02-02 | 2024-06-04 | 浙江贝利工具有限公司 | Tool bit and hole digger thereof |
| CN119387649A (en) * | 2024-09-20 | 2025-02-07 | 镇江市凯越工具有限公司 | A hollow high-speed hole drilling bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 |