CN217452270U - Hollow drill bit capable of automatically recycling blanking - Google Patents
Hollow drill bit capable of automatically recycling blanking Download PDFInfo
- Publication number
- CN217452270U CN217452270U CN202220245571.1U CN202220245571U CN217452270U CN 217452270 U CN217452270 U CN 217452270U CN 202220245571 U CN202220245571 U CN 202220245571U CN 217452270 U CN217452270 U CN 217452270U
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- CN
- China
- Prior art keywords
- drill bit
- positioning
- hollow
- hollow drill
- pressing sleeve
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- 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
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- 238000004064 recycling Methods 0.000 title claims description 7
- 238000005553 drilling Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a hollow drill bit capable of automatically recovering blanking, which comprises a hollow drill bit 1, a pressing sleeve 2, a positioning drill bit 3, an elastic barb 4 and a spring 5; the positioning drill bit 3 is coaxial with the hollow drill bit 1; the front end of the positioning drill bit 3 extends out of the front end surface of the hollow drill bit 1; this device has added the elasticity barb at location drill bit front end, drills through the centre bore at the location drill bit after, fixes the blanking on the location drill bit through the elasticity barb, treats core drill stall back, and the blanking is taken off to the manual, under the effect of spring 5, impresses the elasticity barb again in the helicla flute of location drill bit to be ready for next use. The device has the advantages of compact structure and easy realization, and has good market promotion prospect.
Description
Technical Field
The utility model belongs to the technical field of the machine-building, a automatic retrieve hollow drill of blanking is related to, realizes the timely recovery of hollow drill drilling blanking.
Background
The hole drill is widely applied to various fields as a common drilling tool. The conventional drill bit comprises a twist drill, a hollow drill, a solid and hollow composite drill and the like. The twist drill is suitable for drilling through holes and blind holes, but is limited by the maximum torque of the drilling machine and is suitable for drilling holes with smaller diameters; the hollow drill is suitable for drilling holes with larger diameters, but the positioning accuracy of the drilling holes of the hollow drill is poorer, so that the application range is limited; the solid hollow composite drill combines the advantages of the twist drill and the hollow drill, can drill holes with larger diameters, and solves the problem of positioning. Circular blanking can be generated after the hollow drill bit and the composite drill bit are drilled, and blanking recovery is often neglected.
Holes are formed in the installed pipeline or the equipment control cabinet, and the blanking falls into the pipeline or the cavity of the control cabinet and cannot be taken out. Therefore, pipeline blockage or short circuit of an internal circuit of the control cabinet is caused, and later use is seriously influenced or great potential safety hazards exist.
Therefore, the hollow drill bit capable of automatically recycling the blanking is designed, the automatic recycling function of the hollow drill bit for drilling and blanking is realized, and the method has outstanding engineering practical value.
Disclosure of Invention
The utility model aims at providing an automatic retrieve hollow drill of blanking solves the difficult problem that the blanking that produces in the time of using hollow drill trompil operation can't in time retrieve in the actual engineering.
The utility model discloses a technical scheme do: a hollow drill bit capable of automatically recovering blanking comprises a hollow drill bit 1, a pressing sleeve 2, a positioning drill bit 3, an elastic barb 4 and a spring 5; the positioning drill bit 3 is coaxial with the hollow drill bit 1; the front end of the positioning drill bit 3 extends out of the front end surface of the hollow drill bit 1; the pressing sleeve 2 is sleeved on the positioning drill bit 3 in an empty mode and slides along the positioning drill bit 3; the spring 5 penetrates through the positioning drill bit 3, the upper end of the spring 5 is contacted with the hollow drill bit 1, and the lower end of the spring 5 is contacted with the pressing sleeve 2; the front end of the positioning drill bit 3 is an auger cutting edge, the rear end of the positioning drill bit is a cylindrical part, and the rear end of the cylindrical part is fixedly connected with the hollow drill bit 1; two spiral grooves are symmetrically arranged on the outer spiral surface at the front end of the positioning drill bit 3, and two elastic barbs 4 are respectively arranged in the two spiral grooves.
The hollow drill bit 1 is of a three-section type stepped structure, the middle part of the hollow drill bit is a cylindrical transition section, and the rear end of the hollow drill bit is a clamping section connected with a chuck of the hollow drill; the front end has the largest cross section size and is the drilling part of the hollow drill bit 1, and the front end surface of the cutting part is uniformly provided with sawtooth cutting edges.
The elastic barb 4 is a tough steel wire, one end of the elastic barb 4 is fixed in the spiral groove of the positioning drill bit 3, the other end of the elastic barb 4 is pressed into the spiral groove of the positioning drill bit 3 by the pressing sleeve 2, the pressing sleeve 2 moves axially along the positioning drill bit 3 to disengage the elastic barb 4, and the other end of the elastic barb 4 is popped out of the spiral surface of the positioning drill bit 3.
The pressing sleeve 2 is a sleeve with four arc grooves on one end surface, and the diameter of an inner hole of the pressing sleeve 2 is slightly larger than the maximum diameter of the positioning drill bit 3.
The utility model has the advantages that: an elastic barb is added on a positioning drill bit, so that the function of directly taking out hollow drilling blanking while a drill bit is used is realized. The device has the advantages of compact structure and easy realization, and has good market promotion prospect.
Drawings
Fig. 1 is an external view of the present invention.
Fig. 2 is a cross-sectional view before drilling.
Fig. 3 is a cross-sectional view after drilling.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1 and 2, the hollow drill bit capable of automatically recovering the blanking comprises a hollow drill bit 1, a pressing sleeve 2, a positioning drill bit 3, an elastic barb 4 and a spring 5; the positioning drill bit 3 is coaxial with the hollow drill bit 1; the front end of the positioning drill bit 3 extends out of the front end surface of the hollow drill bit 1; the pressing sleeve 2 is sleeved on the positioning drill bit 3 in an empty mode and slides along the positioning drill bit 3; the spring 5 penetrates through the positioning drill bit 3, the upper end of the spring 5 is contacted with the hollow drill bit 1, and the lower end of the spring 5 is contacted with the pressing sleeve 2; the front end of the positioning drill bit 3 is an auger cutting edge, the rear end of the positioning drill bit is a cylindrical part, and the rear end of the cylindrical part is fixedly connected with the hollow drill bit 1; two spiral grooves are symmetrically arranged on the outer spiral surface at the front end of the positioning drill bit 3, and two elastic barbs 4 are respectively arranged in the two spiral grooves. The positioning drill bit 3 is used for positioning, drilling through a pipeline or a plate, the pressing sleeve 2 axially slides along the positioning drill bit 3, the pressing sleeve 2 is separated from the elastic barb 4, the elastic barb 4 is directly pressed into the spiral groove of the positioning drill bit 3 continuously by a pipeline or plate hole, and when the positioning drill bit 3 drills through the pipeline or the plate, the other end of the elastic barb 4 stretches out of the drilling through hole and hooks the pipeline or the plate.
The hollow drill bit 1 has a three-section type stepped structure, the middle part is a cylindrical transition section, and the rear end is a clamping section connected with a chuck of the hollow drill; the front end has the largest cross section size and is the drilling part of the hollow drill bit 1, and saw-tooth cutting edges are uniformly distributed on the front end surface of the cutting part. When the hollow drill bit 1 drills through a pipeline or a plate, a circular blanking with a central hole is formed, the blanking is hooked by the elastic barb 4 and taken out once while drilling.
As shown in fig. 2 and 3, the elastic barb 4 is a flexible steel wire, one end of the elastic barb 4 is fixed in the spiral groove at the front end of the positioning drill bit 3, the other end of the elastic barb 4 is pressed into the spiral groove of the positioning drill bit 3 by the pressing sleeve 2, the pressing sleeve 2 moves axially along the positioning drill bit 3 to disengage from the elastic barb 4, and the other end of the elastic barb 4 is popped out of the spiral surface of the positioning drill bit 3.
After the positioning drill bit 3 drills through the board, the elastic barb 4 penetrates through the board, the movable end of the elastic barb 4 stretches out of the spiral groove, the blanking formed after the board is drilled through by the hollow drill bit is hung upside down on the positioning drill bit 3 by the elastic barb 4, after drilling is finished, the blanking is taken out along with the drill bit, and the blanking is manually taken down from the positioning drill bit 3.
The pressing sleeve 2 is a sleeve with four arc grooves on one end surface, and the diameter of an inner hole of the pressing sleeve 2 is slightly larger than the maximum diameter of the positioning drill bit 3. Four arc grooves at one end of the pressing sleeve 2 are distributed in equal parts, the pressing sleeve 2 is manually rotated, and the elastic barbs 4 are pressed into the spiral grooves of the positioning drill 3 by the two opposite arc grooves of the pressing sleeve 2.
Claims (4)
1. The utility model provides an automatic retrieve core drill of blanking which characterized in that: comprises a hollow drill bit (1), a pressing sleeve (2), a positioning drill bit (3), an elastic barb (4) and a spring (5); the positioning drill bit (3) is coaxial with the hollow drill bit (1); the front end of the positioning drill bit (3) extends out of the front end surface of the hollow drill bit (1); the pressing sleeve (2) is sleeved on the positioning drill bit (3) in an empty way and slides along the positioning drill bit (3); the spring (5) penetrates through the positioning drill bit (3), the upper end of the spring (5) is in contact with the hollow drill bit (1), and the lower end of the spring (5) is in contact with the pressing sleeve (2); the front end of the positioning drill bit (3) is an auger cutting edge, the rear end of the positioning drill bit is a cylindrical part, and the rear end of the cylindrical part is fixedly connected with the hollow drill bit (1); two spiral grooves are symmetrically arranged on the outer spiral surface at the front end of the positioning drill bit (3), and two elastic barbs (4) are respectively arranged in the two spiral grooves.
2. The hollow drill bit capable of automatically recycling blanking according to claim 1, characterized in that: the hollow drill bit (1) is of a three-section type stepped structure, the middle part of the hollow drill bit is a cylindrical transition section, and the rear end of the hollow drill bit is a clamping section which is connected with a chuck of the hollow drill; the front end has the largest section size and is the drilling part of the hollow drill bit (1), and saw-tooth cutting edges are uniformly distributed on the front end surface of the cutting part.
3. The hollow drill bit capable of automatically recycling blanking according to claim 1, characterized in that: the elastic barb (4) is a tough steel wire, one end of the elastic barb (4) is fixed in the spiral groove of the positioning drill bit (3), and the other end of the elastic barb (4) is pressed into the spiral groove of the positioning drill bit (3) by the pressing sleeve (2); the pressing sleeve (2) moves along the axial direction of the positioning drill bit (3) to be separated from the elastic barb (4), and the other end of the elastic barb (4) is popped out of the spiral surface of the positioning drill bit (3).
4. The hollow drill bit capable of automatically recycling and blanking as claimed in claim 1, wherein: the pressing sleeve (2) is a sleeve with four arc grooves on one end surface, and the diameter of an inner hole of the pressing sleeve (2) is slightly larger than the maximum diameter of the positioning drill bit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220245571.1U CN217452270U (en) | 2022-01-29 | 2022-01-29 | Hollow drill bit capable of automatically recycling blanking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220245571.1U CN217452270U (en) | 2022-01-29 | 2022-01-29 | Hollow drill bit capable of automatically recycling blanking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217452270U true CN217452270U (en) | 2022-09-20 |
Family
ID=83262940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220245571.1U Expired - Fee Related CN217452270U (en) | 2022-01-29 | 2022-01-29 | Hollow drill bit capable of automatically recycling blanking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217452270U (en) |
-
2022
- 2022-01-29 CN CN202220245571.1U patent/CN217452270U/en not_active Expired - Fee Related
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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: 20220920 |