CN210172613U - Anti-slip twist drill suitable for three-jaw drill chuck - Google Patents
Anti-slip twist drill suitable for three-jaw drill chuck Download PDFInfo
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- CN210172613U CN210172613U CN201920872433.4U CN201920872433U CN210172613U CN 210172613 U CN210172613 U CN 210172613U CN 201920872433 U CN201920872433 U CN 201920872433U CN 210172613 U CN210172613 U CN 210172613U
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- drill
- jaw
- jackscrew
- handle
- drill chuck
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- 238000005553 drilling Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000000034 method Methods 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of metal cutting machining cutter, concretely relates to fluted drill that skids prevents suitable for three-jaw drill chuck, including handle of a knife and tool bit, the coaxial setting of handle of a knife and tool bit, its characterized in that: the drill bit is characterized in that a positioning hole is formed in the outer circular surface of the cutter handle, a jackscrew is arranged in the positioning hole, the uppermost part of the jackscrew is higher than the outer circular surface of the cutter handle, the jackscrew is located between the two three-jaw drill chucks when the three-jaw drill chuck clamps the drill bit, and the inner surface of the three-jaw drill chuck is in contact with the cylindrical surface of the drill handle of the twist drill to clamp the twist drill. When the three-jaw drill chuck slips relative to the drill handle, the side surface of the jackscrew contacts with the side surface of the one-piece three-jaw drill chuck, and the side surface of the three-jaw drill chuck provides extra torsional force for the twist drill through the jackscrew to drive the twist drill to complete the drilling work.
Description
Technical Field
The utility model belongs to the technical field of metal cutting machining cutter, concretely relates to twist drill prevents skidding suitable for three-jaw drill chuck.
Background
Three-jaw drill chucks are used as clamping structures in electric pistol drills and bench drills. The three-jaw drill chuck clamps a cylindrical handle part of a drill bit, then the machine drives the drill bit to rotate through the three-jaw drill chuck, and when the friction force between the working surface of the drill bit and the inner surface of a hole is larger than the friction force between the three-jaw drill chuck and a drill bit handle in the drilling process, the drill bit and the three-jaw drill chuck can slip and can be used only by re-clamping.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide an anti-slip twist drill suitable for a three-jaw drill chuck.
The utility model discloses a realize like this: the utility model provides an anti-skidding twist drill suitable for three-jaw drill chuck, includes handle of a knife and tool bit, handle of a knife and the coaxial setting of tool bit, its characterized in that: the tool holder is characterized in that a positioning hole is formed in the outer circular surface of the tool holder, a jackscrew is arranged in the positioning hole, and the uppermost part of the jackscrew is higher than the outer circular surface of the tool holder.
Further, the number of the positioning holes is one.
Further optimization, the positioning holes are long-strip-shaped, the direction of the positioning holes is the same as the direction of the axes of the twist drills, and long-strip-shaped jackscrews are arranged in the positioning holes.
Further preferably, the number of the positioning holes is 3, and the angle between the three positioning holes is 120 degrees.
Compared with the prior art, the beneficial effects of the utility model are that: in the process of clamping the drill bit, the jackscrew is positioned between the two-clack three-jaw drill chuck, and the inner surface of the three-jaw drill chuck is contacted with the cylindrical surface of the drill handle of the twist drill to finish clamping the twist drill. When the three-jaw drill chuck slips relative to the drill handle, the side surface of the jackscrew contacts with the side surface of the one-piece three-jaw drill chuck, and the side surface of the three-jaw drill chuck provides extra torsional force for the twist drill through the jackscrew to drive the twist drill to complete the drilling work.
When evenly being provided with three jackscrew on the drill handle of fluted drill, the dynamics of transferring for fluted drill from the jackscrew is more even, and the hole quality that fluted drill played is higher.
Drawings
Fig. 1 is a schematic structural diagram of the device.
Detailed Description
Embodiment 1, as shown in the figure, an anti-skidding twist drill suitable for three-jaw drill chuck, includes handle of a knife 1 and tool bit 2, handle of a knife 1 and the coaxial setting of tool bit 2, be provided with a location hole 3 on the outer disc of handle of a knife, be provided with jackscrew 4 in the location hole 3, jackscrew 4 fixed connection is inside hole 3, and the top of jackscrew 4 is higher than the outer disc of handle of a knife.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and to those skilled in the art, the present invention can be variously modified and changed, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides an anti-skidding twist drill suitable for three-jaw drill chuck, includes handle of a knife and tool bit, handle of a knife and the coaxial setting of tool bit, its characterized in that: the tool holder is characterized in that a positioning hole is formed in the outer circular surface of the tool holder, a jackscrew is arranged in the positioning hole, and the uppermost part of the jackscrew is higher than the outer circular surface of the tool holder.
2. An anti-slip twist drill suitable for use in a three-jaw drill chuck according to claim 1, wherein: the number of the positioning holes is one.
3. An anti-slip twist drill suitable for use in a three-jaw drill chuck according to claim 1, wherein: the positioning hole is in a long strip shape, the direction of the positioning hole is the same as the direction of the axis of the twist drill, and a long strip-shaped jackscrew is arranged in the positioning hole.
4. An anti-slip twist drill suitable for use in a three-jaw drill chuck according to claim 1, wherein: the number of the positioning holes is 3, and the angle between the three positioning holes is 120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872433.4U CN210172613U (en) | 2019-06-12 | 2019-06-12 | Anti-slip twist drill suitable for three-jaw drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872433.4U CN210172613U (en) | 2019-06-12 | 2019-06-12 | Anti-slip twist drill suitable for three-jaw drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210172613U true CN210172613U (en) | 2020-03-24 |
Family
ID=69837151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920872433.4U Active CN210172613U (en) | 2019-06-12 | 2019-06-12 | Anti-slip twist drill suitable for three-jaw drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210172613U (en) |
-
2019
- 2019-06-12 CN CN201920872433.4U patent/CN210172613U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.8, Dongqiang Road, Xindong industrial cluster, Xinxiang City, Henan Province Patentee after: Henan Heyi Precision Tools Co.,Ltd. Country or region after: China Address before: No.8, Dongqiang Road, Xindong industrial cluster, Xinxiang City, Henan Province Patentee before: HENAN YIGONG DRILLING INDUSTRY CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |