CN216706077U - Part carving tool for chemical milling with small curvature radius - Google Patents
Part carving tool for chemical milling with small curvature radius Download PDFInfo
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- CN216706077U CN216706077U CN202122900562.XU CN202122900562U CN216706077U CN 216706077 U CN216706077 U CN 216706077U CN 202122900562 U CN202122900562 U CN 202122900562U CN 216706077 U CN216706077 U CN 216706077U
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Abstract
The utility model relates to the technical field of cutters and discloses a small-curvature-radius chemical milling part engraving cutter which comprises a holding rod 1, a rotating nut 2, a screw rod 3 and a cutter head 4. A threaded mounting hole 101 is formed in one end, provided with the cutter head 4, of the holding rod 1; the screw rod 3 penetrates from one end of the threaded mounting hole 101 and is sequentially in threaded connection with the threaded mounting hole 101 and the rotary nut 2; one end of the screw rod 3, which is far away from the rotating nut 2, is a tool bit mounting part for mounting a tool bit 4; the screw 3 and the rotating nut 2 on which the cutter head 4 is mounted together form a rotatable cutter head assembly which can rotate along the axis of the threaded mounting hole 101. The utility model utilizes the characteristic that the rotatable cutter head component is in threaded connection with the holding rod 1 and can rotate to adjust the working angle of the cutter head 4, and solves the problem that the chemical milling surface 100 of a part with small curvature radius can not be carved by a tool.
Description
Technical Field
The utility model relates to an engraving cutter used for chemical milling pretreatment in the field of aviation manufacturing, in particular to an engraving cutter for a small-curvature-radius chemical milling part, which is used for engraving the chemical milling surface in the small-curvature-radius part.
Background
The chemical milling technology is widely applied to the field of aviation manufacturing, has obvious technical characteristics, and can process materials with high hardness by means of the chemical milling technology no matter how complex the shape of a curved surface is. The engraving is a pretreatment process of chemical milling, and mainly comprises the step of engraving chemical milling protective glue at a part needing chemical milling by using a surgical blade by means of comparison of chemical milling engraving templates of parts.
A small radius of curvature feature, as shown in fig. 1, cannot be sculptured using the conventional scalpel of the prior art, as shown in fig. 2.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a small-curvature-radius chemical milling part engraving tool which is provided with a rotatable tool bit assembly mainly comprising a rotating nut, a screw and a tool bit, and solves the problem that the chemical milling surface of a small-curvature-radius part cannot be engraved by a hand tool by utilizing the characteristic that the rotatable tool bit assembly is in threaded connection with a holding rod so that the working angle of the tool bit can be rotatably adjusted.
The utility model is realized by the following technical scheme: a small-curvature-radius chemical milling part engraving cutter comprises a holding rod, a cutter head, a rotary nut with internal threads and a screw rod with external threads, wherein the holding rod is provided with the cutter head; one end of the holding rod mounting tool bit is provided with a threaded mounting hole; the screw penetrates from one end of the threaded mounting hole and is sequentially in threaded connection with the threaded mounting hole and the rotary nut; one end of the screw rod, which is far away from the rotating nut, is a tool bit mounting part for mounting a tool bit; the screw rod for mounting the cutter head and the rotating nut jointly form a rotatable cutter head capable of rotating along the axis of the threaded mounting hole.
In order to better implement the present invention, the threaded mounting hole is a stepped through hole, the end with the smaller diameter of the stepped through hole is a threaded hole for being in threaded connection with the screw rod, and the end with the larger diameter of the stepped through hole is an unthreaded hole for mounting the rotating nut.
In order to better implement the present invention, further, one end of the rotation nut is a connection portion capable of penetrating into the unthreaded hole of the threaded mounting hole, and the other end of the rotation nut is a limiting portion having an outer diameter larger than the unthreaded hole of the rotation nut and used for limiting.
In order to better implement the utility model, further, the connecting part of the rotating nut is in clearance fit with the unthreaded hole of the threaded mounting hole.
In order to better implement the present invention, further, the total height of the spin nut is not greater than the depth of the unthreaded hole, so that the spin nut can be completely positioned in the unthreaded hole without protruding after being mounted in the unthreaded hole of the threaded mounting hole.
In order to better implement the utility model, further, the cutter head is entirely bullet-shaped, and the front end of the cutter head is used for carving.
In order to better implement the present invention, further, the bit mounting portion of the screw is provided with a bit mounting hole in which the bit is mounted.
In order to better implement the utility model, further, the rear end of the cutter head is in threaded connection with the cutter head mounting hole.
In order to better implement the utility model, further, the holding rod is of an elongated rod-shaped structure, and a holding end of the holding rod, which is far away from the tool bit mounting part, is provided with an ergonomic hand-held handle.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
(1) the tool bit assembly has the advantages that the tool bit assembly is mainly composed of a rotary nut, a screw and a tool bit, and the function of carving the chemical milling surface in the part with small curvature radius is realized by utilizing the characteristic that the tool bit assembly is in threaded connection with a holding rod and can rotate to adjust the working angle of the tool bit;
(2) the holding rods with different lengths can be replaced, so that the surface of the small-curvature-radius part with different depth and depth can be carved;
(3) the rear end of the holding rod is designed into a handheld handle conforming to ergonomics, so that the holding rod is convenient to hold.
Drawings
The utility model is further described in connection with the following figures and examples, all of which are intended to be open ended and within the scope of the utility model.
FIG. 1 is a part with a small radius of curvature.
Fig. 2 is a prior art scalpel.
Fig. 3 is a schematic structural diagram of the cutter of the present invention in which the cutter head is at the first position.
Fig. 4 is a schematic structural diagram of the cutter according to the present invention when the cutter head is located at the second position.
FIG. 5 is a schematic view of the structure of the grip.
Fig. 6 is an enlarged cross-sectional view taken along line a-a in fig. 5.
FIG. 7 is a schematic view of a spin nut.
Fig. 8 is an enlarged cross-sectional view taken along line B-B in fig. 7.
Fig. 9 is a schematic structural view of the screw.
Fig. 10 is a schematic view of a cutter head of a general bullet type.
FIG. 11 is a schematic view of a typical connection of a grip, a spin nut, and a threaded rod.
Wherein: 100. chemically milling the surface; 201. a surgical blade; 202. a scalpel handle; 203. a connecting clamping groove;
1. a holding rod; 101. a threaded mounting hole; 102. a hand-held handle; 2. rotating the nut; 3. a screw; 301. a cutter head mounting hole; 4. a cutter head.
Detailed Description
Example 1:
by way of example, a part having a small radius of curvature as shown in FIG. 1 has an a-end opening of only 40mm and a b-end opening of 88 mm.
As shown in fig. 2, a scalpel blade 201 and a scalpel handle 202 of a common scalpel are connected and fixed by a connecting clamping groove 203, the scalpel blade 201 and the scalpel handle are rigidly connected, and when the small-curvature-radius part is carved and molded as shown in fig. 1, the scalpel blade 201 cannot carve and mold a longitudinally deep position of the chemically milled surface 100.
In the embodiment, as shown in fig. 3 and 4, the engraving tool for chemical milling of parts with small curvature radius comprises a holding rod 1, a rotating nut 2, a screw 3 and a tool bit 4. A threaded mounting hole 101 is formed in one end, provided with the cutter head 4, of the holding rod 1; the screw 3 penetrates from one end of the threaded mounting hole 101 and is in threaded connection with the threaded mounting hole 101 and the rotary nut 2 in sequence; one end of the screw rod 3, which is far away from the rotating nut 2, is a tool bit mounting part for mounting a tool bit 4; the screw 3 and the rotating nut 2 on which the cutter head 4 is mounted together form a rotatable cutter head assembly which can rotate along the axis of the threaded mounting hole 101. Rotatory nut 2 sets up the internal thread, screw rod 3 sets up the external screw thread, rotatory nut 2 with 3 threaded connection of screw rod, simultaneously screw rod 3 with thread mounting hole 101 threaded connection.
Through the cooperation of holding rod 1 and rotatable tool bit subassembly for tool bit 4 can 360 degrees rotations, therefore tool bit 4 can be adjusted to specific angle as required, thereby conveniently carves the type to the part chemical milling surface 100 that the space is limited, especially stretches into the inside chemical milling surface 100 of small curvature radius part and carves the type.
On the one hand, due to the detachable structure of the holding rod 1 and the rotatable cutter head assembly, the holding rod 1 with different lengths can be better suitable for carving requirements with different depth and depth. On the other hand, due to the threaded connection structure of the screw rod for mounting the cutter head and the holding rod, the angle of the cutter head can be adjusted, and the distance between the axis of the cutter head and the axis of the holding rod can also be adjusted, so that the applicability of the cutter is improved.
Example 2:
this embodiment is further optimized on the basis of embodiment 1, as shown in fig. 5 and 6, the threaded mounting hole 101 is a stepped through hole, the smaller end of the stepped through hole is a threaded hole for being in threaded connection with the screw rod 3, and the larger end of the stepped through hole is a unthreaded hole for mounting the rotating nut 2.
In this embodiment, thread mounting hole 101 is the ladder through-hole, can to the spin nut 2 with screw rod 3 installs fixedly, and holding rod 1, spin nut 2, screw rod 3's cooperation installation realize installing tool bit 4 on screw rod 3 can 360 degrees rotations to use under the less operating mode in type space of carving.
Further, as shown in fig. 7 and 8, one end of the rotation nut 2 is a connection portion that can be inserted into the unthreaded hole of the threaded mounting hole 101, and the other end of the rotation nut 2 is a stopper portion that has an outer diameter larger than the unthreaded hole of the rotation nut 2 and is used for stopping.
Further, as shown in fig. 11, the coupling portion of the spin nut 2 is clearance-fitted to the unthreaded hole of the threaded mounting hole 101.
Other parts of this embodiment are the same as embodiment 1, and thus are not described again.
Example 3:
this embodiment is further optimized based on embodiment 1, and the total height of the rotation nut 2 is not greater than the depth of the light hole, so that the rotation nut 2 can be completely located in the light hole without protruding after being installed in the light hole of the threaded installation hole 101. Such structure can effectively control rotatable tool bit subassembly axial dimension to a certain extent, makes things convenient for the narrow operating mode in usage space.
Example 4:
this embodiment is further optimized on the basis of any of the above embodiments 1-3, and the cutting head 4 in embodiment 1 can be a blade, and the angle of the carving operation can be adjusted by rotating.
In the present embodiment, a preferable mode is further provided, as shown in fig. 10, the cutter head 4 is bullet-shaped as a whole, and the front end of the cutter head 4 is used for carving.
As shown in fig. 9 and 11, the bit mounting portion of the screw 3 is provided with a bit mounting hole 301 for mounting the bit.
The rear end of the cutter head 4 is in threaded connection with the cutter head mounting hole 301. Or, the rear end of the cutter head 4 is connected with the cutter head mounting hole 301 in an interference fit manner. Or, the rear end of the cutter head 4 extends into the cutter head mounting hole 301 and then is fixed by a locking screw.
Other parts of this embodiment are the same as any of embodiments 1 to 3, and thus are not described again.
Example 5:
this embodiment is further optimized on the basis of any one of the above embodiments 1 to 4, as shown in fig. 5, the grip 1 is an elongated rod-shaped structure, and the grip end of the grip 1, which is far away from the bit mounting portion, is provided with a handheld handle 102 for facilitating gripping. The ergonomically designed hand-held handle 102 is more convenient to hold.
Other parts of this embodiment are the same as any of embodiments 1 to 4, and thus are not described again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (9)
1. The utility model provides a type cutter is carved to small curvature radius chemical milling part, includes holding rod (1) and tool bit (4), its characterized in that: the screw rod is characterized by also comprising a rotating nut (2) provided with an internal thread and a screw rod (3) provided with an external thread; a threaded mounting hole (101) is formed in one end, provided with the cutter head (4), of the holding rod (1); the screw (3) penetrates from one end of the threaded mounting hole (101) and is in threaded connection with the threaded mounting hole (101) and the rotary nut (2) in sequence; one end of the screw rod (3) far away from the rotating nut (2) is a tool bit mounting part for mounting a tool bit (4); the screw rod (3) and the rotating nut (2) which are used for installing the cutter head (4) jointly form a rotatable cutter head assembly capable of rotating along the axis of the threaded installation hole (101).
2. The small radius of curvature chemical milling part sculpting tool of claim 1, wherein: the threaded mounting hole (101) is a stepped through hole, the smaller end of the stepped through hole is a threaded hole used for being in threaded connection with the screw rod (3), and the larger end of the stepped through hole is a unthreaded hole used for installing the rotating nut (2).
3. The small radius of curvature chemical milling part sculpting tool of claim 2, wherein: one end of the rotating nut (2) is a connecting part which can go deep into the unthreaded hole of the threaded mounting hole (101), and the other end of the rotating nut (2) is a limiting part which has an outer diameter larger than the unthreaded hole of the rotating nut (2) and is used for limiting.
4. The small radius of curvature chemical milling part sculpting tool of claim 3, wherein: and the connecting part of the rotating nut (2) is in clearance fit with the unthreaded hole of the threaded mounting hole (101).
5. The small radius of curvature chemical milling part sculpting tool of claim 2, wherein: the total height of the rotating screw cap (2) is not more than the depth of the unthreaded hole, so that the rotating screw cap (2) can be completely positioned in the unthreaded hole without protruding after being installed in the unthreaded hole of the threaded installation hole (101).
6. The small radius of curvature chemical milling part sculpting tool of claim 1, wherein: the cutter head (4) is bullet-shaped as a whole, and the front end of the cutter head (4) is used for carving.
7. The small radius of curvature chemical milling part sculpting tool of claim 6, wherein: the tool bit mounting part of the screw rod (3) is provided with a tool bit mounting hole (301) for mounting the tool bit.
8. The small radius of curvature chemical milling part sculpting tool of claim 7, wherein: the rear end of the cutter head (4) is in threaded connection with the cutter head mounting hole (301).
9. The small radius of curvature chemical milling part sculpting tool of any one of claims 1-8, wherein: the holding rod (1) is of a slender rod-shaped structure, and a handheld handle (102) convenient to hold is arranged at a holding end, far away from the tool bit mounting portion, of the holding rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122900562.XU CN216706077U (en) | 2021-11-24 | 2021-11-24 | Part carving tool for chemical milling with small curvature radius |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122900562.XU CN216706077U (en) | 2021-11-24 | 2021-11-24 | Part carving tool for chemical milling with small curvature radius |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216706077U true CN216706077U (en) | 2022-06-10 |
Family
ID=81880683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122900562.XU Active CN216706077U (en) | 2021-11-24 | 2021-11-24 | Part carving tool for chemical milling with small curvature radius |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216706077U (en) |
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2021
- 2021-11-24 CN CN202122900562.XU patent/CN216706077U/en active Active
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