CN220613057U - Drill chuck with double rotary structure - Google Patents
Drill chuck with double rotary structure Download PDFInfo
- Publication number
- CN220613057U CN220613057U CN202322278655.2U CN202322278655U CN220613057U CN 220613057 U CN220613057 U CN 220613057U CN 202322278655 U CN202322278655 U CN 202322278655U CN 220613057 U CN220613057 U CN 220613057U
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- Prior art keywords
- clamping jaw
- drill
- tap
- clamping
- drill chuck
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- 230000009977 dual effect Effects 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000002474 Tinea Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a drill chuck with a double-rotation structure, which comprises a drill body, a plurality of front clamping jaws and a plurality of rear clamping jaws which are arranged in a ring-shaped manner along the central axis of the drill body, wherein the two groups of clamping jaws shrink to jointly clamp a tap from the front end and the rear end, so that the stability of the tap during working is ensured. The screw structure for clamping the tail rod of the tap is additionally arranged on the basis of the existing screw drill chuck, the V-shaped groove is formed in the rear clamping jaw in the embodiment, the tail rod of the tap is placed in the V-shaped groove, the position of the tap can be effectively fixed, and the tap is prevented from slipping in the working process. Compared with the prior art which adopts a screw tightening mode, the anti-slip device has excellent anti-slip capability.
Description
Technical Field
The utility model relates to a machining tool, in particular to a drill chuck with a double-rotation structure.
Background
The drill chuck is a common machining tool, is widely applied to the punching operation of a machine tool, and conventional tap machining needs to be performed through two processes of punching and tapping. The prior art has the drilling chuck with the integrated punching and tapping function, but the clamping surface of the claw of the conventional drilling chuck is arranged into a cone shape and is contacted with the tap to form a dotted line during clamping, so that the tap is easy to slip in the drilling chuck, the tapping quality is affected, larger pressure is required to be applied for fixing, and the problem of slipping still occurs. In the prior art, a set screw is arranged at the rear side of the drill chuck, and the tail end plane of the tap is compressed from the radial direction, but the connection of the screw and the tap still belongs to point-surface contact, so that the fastening force is limited, and meanwhile, the surface of the tap is worn.
The applicant discloses in the chinese patent application No. 202320892243.5 a drill chuck for preventing a tap from slipping, wherein a protrusion having a square clamping surface is provided on a jaw of a conventional drill chuck, and a rear end plane of the tap is clamped by the square clamping surface when the jaw of the drill chuck is rotated. However, the drill chuck has limited fastening capability, and even though the tap does not fall in the drill body, a small-amplitude slipping phenomenon still occurs when the drill chuck is used, so that further improvement of the drill chuck is needed.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a drill chuck with a double-rotation structure, which comprises a drill body, a plurality of front clamping jaws and a plurality of rear clamping jaws, wherein the front clamping jaws and the rear clamping jaws are arrayed in a circumferential manner along the central axis of the drill body; the drill body is sequentially provided with a front mounting part for mounting the front clamping jaw and a rear mounting part for mounting the rear clamping jaw along the axial direction, and the inner sides of the front mounting part and the rear mounting part are respectively provided with a chute extending along the drill body;
the front clamping jaw and the rear clamping jaw respectively comprise a clamping part arranged on the front side and a worm part arranged on the rear side, and the worm part extends into the chute;
the outer side of the drill body is also provided with a rotating ring, and worm parts of the front clamping jaw and the rear clamping jaw are respectively connected with a group of rotating rings through a worm and gear structure.
Further, the front clamping jaw and the rear clamping jaw are located on the inner side of the rotary ring, an inner thread is arranged on the inner side of the rotary ring, and the outer side of the worm part is meshed with the inner thread.
Further, the grip portion of the rear jaw is provided with a grip groove extending along the grip portion.
Further, the clamping groove is V-shaped, and the rear clamping jaws are divided into two groups.
Further, one end of the front mounting part and one end of the rear mounting part are provided with a step surface, and one end of the rotating ring is abutted against the step surface.
Further, a front sleeve and a rear sleeve for fixing the positions of the rotating rings are also arranged, and the front sleeve and the rear sleeve are sleeved on the outer side of the drill body and are respectively connected with the two groups of rotating rings in a rotating mode.
Further, a positioning block is arranged in the drill body, and the positioning block is arranged on the central axis of the drill body and positioned among the plurality of groups of rear clamping jaws.
Further, the rotating ring is provided with a gear ring which is circumferentially arranged, and through holes for installing the torque wrench are arranged on the outer circumferences of the front installation part and the rear installation part
The utility model provides a drill chuck with a double-rotation structure, which comprises a drill body, a plurality of front clamping jaws and a plurality of rear clamping jaws which are arranged in a ring-shaped manner along the central axis of the drill body, wherein the two groups of clamping jaws shrink to jointly clamp a tap from the front end and the rear end, so that the stability of the tap during working is ensured.
The screw structure for clamping the tail rod of the tap is additionally arranged on the basis of the existing screw drill chuck, the V-shaped groove is formed in the rear clamping jaw in the embodiment, the tail rod of the tap is placed in the V-shaped groove, the position of the tap can be effectively fixed, and the tap is prevented from slipping in the working process. Compared with the prior art which adopts a screw tightening mode, the anti-slip device has excellent anti-slip capability.
Drawings
FIG. 1 is a schematic view of the drill chuck with dual rotation structure of the present utility model;
FIG. 2 is an exploded view of the drill chuck with dual rotation structure of the present utility model;
FIG. 3 is a schematic diagram of the connection of the front cover to the swivel ring;
FIG. 4 is a schematic view of a drill body in semi-section;
fig. 5 is a schematic view of the structure of the rear jaw.
Detailed Description
The drill chuck with the double rotary structure comprises a drill body 1, a plurality of front clamping jaws 2 and a plurality of rear clamping jaws 3, wherein the front clamping jaws 2 and the rear clamping jaws 3 are arranged in a ring-shaped array along the central axis of the drill body 1; the drill body 1 is sequentially provided with a front mounting part 7 for mounting the front clamping jaw 2 and a rear mounting part 8 for mounting the rear clamping jaw 3 along the axial direction, and the inner sides of the front mounting part 7 and the rear mounting part 8 are respectively provided with a chute 9 extending along the drill body 1; the front clamping jaw 2 and the rear clamping jaw 3 respectively comprise a clamping part 10 arranged on the front side and a worm part 11 arranged on the rear side, and the worm part 11 extends into the chute 9. The front mounting part 7 is positioned at the end part of the drill body 1, the action of the front clamping jaw 2 is consistent with that of the existing drill chuck, the front clamping jaw is used for clamping a front cylindrical rod body of a tap, and the rear clamping jaw 3 is used for clamping a tail end square structure of the tap. The screw tap is jointly clamped by the two clamping jaws from the front end and the rear end, so that the stability of the screw tap in working is ensured.
The outer side of the drill body 1 is also provided with a rotary ring 4, and worm parts 11 of the front clamping jaw 2 and the rear clamping jaw 3 are respectively connected with a group of rotary rings 4 through a worm and gear structure; the rotating ring 4 is engaged with the worm part 11, and the front clamping jaw 2 and the rear clamping jaw 3 are controlled to reciprocate in the chute 9 by the rotation of the rotating ring 4. In this embodiment, the front clamping jaw 2 and the rear clamping jaw 3 are located at the inner side of the rotating ring 4, the inner side of the rotating ring 4 is provided with an internal thread 12, and the engagement position of the worm part 11 and the rotating ring 4 is located at the outer side of the worm part 11.
The clamping portion 10 of the rear clamping jaw 3 may be provided as a square clamping surface with which the tail end plane of the tap is positioned. The structure of this embodiment may also be processed, as shown in the drawing, the clamping portion 10 of the rear clamping jaw 3 is provided with a clamping groove 13 extending along the clamping portion 10, and when the tap is installed in the clamping groove 13, the tap can be clamped. Specifically, the clamping grooves 13 have a V-shaped structure, and the rear clamping jaws 3 have two groups. When the rear clamping jaw 3 is contracted, the two groups of rear clamping jaws 3 are spliced together to form a square groove, the square groove is similar to the shape of the tail rod of the tap, the position of the tail rod of the tap can be effectively fixed, and the tap is prevented from slipping; at this time, the rotating ring 4 at the back side is screwed tightly, and the V-shaped groove is attached to the plane of the tail end of the tap, so that the pressing force between the back clamping jaw 3 and the tap can be increased.
As shown in the figures, one end of the front mounting portion 7 and one end of the rear mounting portion 8 are provided with a stepped surface 14, and one end of the rotating ring 4 abuts against the stepped surface 14 to fix the mounting position of the rotating ring 4. Further, a front sleeve 5 and a rear sleeve 6 for fixing the position of the rotary ring 4 are also arranged, and the front sleeve 5 and the rear sleeve 6 are sleeved on the outer side of the drill body 1 and are respectively connected with the two groups of rotary rings 4 in a rotary mode.
Further, a positioning block 15 is disposed in the drill body 1, and the positioning block 15 is disposed on a central axis of the drill body 1 and is located between the plurality of groups of rear clamping jaws 3. The tap is arranged from the head of the drill body 1, and the positioning block 15 can automatically position the tail rod of the tap. Since the lengths of the screw tap tail rods of different types are approximately the same, the rear clamping jaw 3 can be positioned at the position of the screw tap tail rod by rotating the rotary ring 4 at the rear side.
Further, the rotary ring 4 is provided with a ring gear 16 circumferentially arranged, and through holes 17 for mounting torque wrenches are formed in the outer circumferences of the front mounting portion 7 and the rear mounting portion 8. A torque wrench is fitted into the through hole 17, and an output end of the torque wrench is engaged with the ring gear 16, and the torque wrench is controlled to rotate the rotary ring 4.
The operation procedure of this embodiment is as follows: rotating a rotating ring 4 on a rear clamping jaw 3 to enable the rear clamping jaw 3 to shrink towards a central shaft, wherein a clamping groove 13 extending along the radial direction is formed on the rear clamping jaw 3, and when the rear clamping jaw 3 shrinks, a square limiting groove matched with the shape of the rear end of the tap is formed at the central shaft position of the drill body 1; the screw tap is installed from the head of the drill body 1, the tail end of the screw tap is inserted into the square limiting groove, the rear end rotating ring 4 is continuously rotated, and the rear clamping jaw 3 clamps and fastens the tail end of the screw tap. At this time, the front rotary ring 4 is rotated, and the front clamping jaw 2 fastens the head of the tap, thereby preventing the tap from slipping in the drill body 1.
While embodiments of the present utility model have been shown and described above, it will be understood that the embodiments in the specification and drawings are exemplary and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the embodiments described above by those of ordinary skill in the art within the scope of the utility model. All technical schemes obtained by adopting equivalent substitution or equivalent transformation or modification fall within the protection scope of the utility model.
Claims (8)
1. Drill chuck with double rotary structure, its characterized in that: the drilling machine comprises a drilling body, a plurality of front clamping jaws and a plurality of rear clamping jaws, wherein the front clamping jaws and the rear clamping jaws are arranged in a circumferential mode along the central axis of the drilling body; the drill body is sequentially provided with a front mounting part for mounting the front clamping jaw and a rear mounting part for mounting the rear clamping jaw along the axial direction, and the inner sides of the front mounting part and the rear mounting part are respectively provided with a chute extending along the drill body;
the front clamping jaw and the rear clamping jaw respectively comprise a clamping part arranged on the front side and a worm part arranged on the rear side, and the worm part extends into the chute;
the outer side of the drill body is also provided with a rotating ring, and worm parts of the front clamping jaw and the rear clamping jaw are respectively connected with a group of rotating rings through a worm and gear structure.
2. The drill chuck with dual rotation structure of claim 1, wherein: the front clamping jaw and the rear clamping jaw are positioned on the inner side of the rotating ring, an inner thread is arranged on the inner side of the rotating ring, and the outer side of the worm part is meshed with the inner thread.
3. The drill chuck with dual rotation structure of claim 1, wherein: the clamping portion of the rear clamping jaw is provided with a clamping groove extending along the clamping portion.
4. A drill chuck with dual rotation structure as claimed in claim 3, wherein: the clamping groove is a V-shaped groove, and the rear clamping jaws are two groups.
5. The drill chuck with dual rotation structure of claim 1, wherein: one end of the front mounting part and one end of the rear mounting part are provided with a step surface, and one end of the rotating ring is abutted to the step surface.
6. The drill chuck with dual rotation structure of claim 5, wherein: the drill is characterized by further comprising a front sleeve and a rear sleeve which are used for fixing the positions of the rotating rings, and the front sleeve and the rear sleeve are sleeved on the outer side of the drill body and are respectively connected with the two groups of rotating rings in a rotating mode.
7. The drill chuck with dual rotation structure of claim 1, wherein: the drill body is internally provided with a positioning block, and the positioning block is arranged on the central axis of the drill body and positioned among the plurality of groups of rear clamping jaws.
8. The drill chuck with dual rotation structure of claim 1, wherein: the rotary ring is provided with a gear ring which is circumferentially distributed, and through holes for installing the torque wrench are formed in the outer circumferences of the front installation part and the rear installation part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322278655.2U CN220613057U (en) | 2023-08-24 | 2023-08-24 | Drill chuck with double rotary structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322278655.2U CN220613057U (en) | 2023-08-24 | 2023-08-24 | Drill chuck with double rotary structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220613057U true CN220613057U (en) | 2024-03-19 |
Family
ID=90234197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322278655.2U Active CN220613057U (en) | 2023-08-24 | 2023-08-24 | Drill chuck with double rotary structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220613057U (en) |
-
2023
- 2023-08-24 CN CN202322278655.2U patent/CN220613057U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |