CN214489653U - Conical thin-wall shell machining and clamping device - Google Patents
Conical thin-wall shell machining and clamping device Download PDFInfo
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- CN214489653U CN214489653U CN202120679226.4U CN202120679226U CN214489653U CN 214489653 U CN214489653 U CN 214489653U CN 202120679226 U CN202120679226 U CN 202120679226U CN 214489653 U CN214489653 U CN 214489653U
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Abstract
The utility model provides a toper thin wall casing processing clamping device, including base, swivel nut, clamping ring, base one end is equipped with the boss, and in the boss stretched into the swivel nut, the swivel nut passed through threaded connection with the base, and the one end that the base was kept away from to the swivel nut is equipped with interior hem, and clamping ring one end is equipped with outer hem, and in the swivel nut was located to outer hem, outer hem terminal surface and interior hem contact, the clamping ring middle part was equipped with the bell mouth. Adopt the utility model discloses: (1) the machining of the inner taper hole and the sealing surface of the tapered thin-wall shell can be finished by one-time clamping, so that the working efficiency is improved; (2) the shell is clamped and fixed by the aid of the tapered holes of the compression ring, stress is uniform, clamping deformation is avoided, and size out-of-tolerance is prevented; (3) the clamping device can be repeatedly used, and is not required to be machined and removed, so that the surface quality of the shell is high; (4) and a process block is not adopted, so that the length of the lane required by turning the sealing groove is reduced, and the processing precision is improved.
Description
Technical Field
The utility model relates to a machinery clamping technical field, concretely relates to toper thin wall casing processing clamping device.
Background
In the machining of aircraft shell products, some parts are conical thin-walled shells. The neck of the conical thin-wall shell is provided with an inner convex structure, one surface of the inner convex structure facing the small end of the conical thin-wall shell is a sealing surface, an inner conical hole which gradually inclines inwards is arranged between the small end and the sealing surface, and an annular sealing groove is arranged on the sealing surface. Under the condition that the diameter of the small end is phi 85(0, +0.1) mm, the taper angle of the inner taper hole is 1 degree 20', the width of the annular sealing groove is 2(0, 0.1) mm, the depth of the annular sealing groove is 0.8mm, and the perpendicularity between the sealing surface and the inner hole of the conical thin-wall shell is 0.03 mm. The tapered thin-walled part is shown in fig. 2 and 3.
When the inner taper hole and the sealing groove are machined, the conical thin-wall shell needs to be clamped. The original process method is that soft claws are supported on the inner circle of the large end of a shell, a process block is clamped by a central frame and fixed on the outer circle of the small end, then an inner taper hole and a sealing groove are machined by lathing, the central frame is removed after the lathing, and the rest process blocks are lathed. The method has a plurality of disadvantages, one is that when the inner taper hole is processed, the outer circular wall fixed by the process block is easy to cause clamping deformation, so that the size of the inner taper hole is out of tolerance; secondly, after the center frame is removed, the large end is supported only by the soft claws, the cantilever of the conical shell is too long, vibration is easy to generate when the process block is removed, and the quality of the processed surface is poor; thirdly, due to the existence of the process block, when the sealing groove is turned, the turning tool needs to be large in length and poor in machining rigidity; fourthly, the processing steps are complicated, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a toper thin wall casing processing clamping device.
The utility model discloses a following technical scheme can realize.
The utility model provides a toper thin wall casing processing clamping device, including base, swivel nut, clamping ring, base one end is equipped with the boss, and in the swivel nut stretched into the swivel nut, the swivel nut passed through threaded connection with the base, and the one end that the base was kept away from to the swivel nut was equipped with interior hem, and clamping ring one end is equipped with outer hem, and in the swivel nut was located to outer hem, outer hem terminal surface contacted with interior hem, and the clamping ring middle part is equipped with the bell mouth.
The middle part of the side surface of the base is also provided with a limiting bulge, and the thread is positioned between one end of the base, which is close to the lug boss, and the limiting bulge.
And a wrench hole is formed in the side surface of the screw sleeve.
The number of the wrench holes is four, and the wrench holes are uniformly distributed along the circumferential direction of the threaded sleeve.
The end of the boss close to the compression ring is further provided with an elastic cone, and the side face of the elastic cone is provided with a plurality of movable grooves.
The cone angle of the elastic cone cylinder is smaller than that of the pressing ring conical hole.
The inner folded edge is in clearance fit with the threaded sleeve.
The outer folded edge is in clearance fit with the compression ring.
The beneficial effects of the utility model reside in that:
adopt the utility model discloses: (1) the machining of the inner taper hole and the sealing surface of the tapered thin-wall shell can be finished by one-time clamping, so that the working efficiency is improved; (2) the shell is clamped and fixed by the aid of the tapered holes of the compression ring, stress is uniform, clamping deformation is avoided, and size out-of-tolerance is prevented; (3) the clamping device can be repeatedly used, and is not required to be machined and removed, so that the surface quality of the shell is high; (4) and a process block is not adopted, so that the length of the lane required by turning the sealing groove is reduced, and the processing precision is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a conical thin-walled shell.
Fig. 3 is a detailed view of section I of fig. 2.
In the figure: 1-a base; 2-thread sleeve; 3, pressing a ring; 4-boss; 5-folding the inner edge; 6-folding the outer edge; 7-a tapered hole; 8-limiting bulges; 9-spanner holes; 10-an elastic cone; 11-active slot.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1, the structure of the present invention is schematically illustrated:
the utility model provides a toper thin wall casing processing clamping device, including base 1, swivel nut 2, clamping ring 3, 1 one end of base is equipped with boss 4, and in boss 4 stretched into swivel nut 2, swivel nut 2 passed through threaded connection with base 1, and base 1 was kept away from to swivel nut 2's one end was equipped with interior hem 5, and 3 one ends of clamping ring are equipped with outer hem 6, and in outer hem 6 located swivel nut 2, 6 terminal surfaces of outer hem contacted with interior hem 5, and 3 middle parts of clamping ring are equipped with bell mouth 7.
The method comprises the following operation steps: clamping the base 1 by using a three-jaw clamp of a lathe, sleeving the large end of the conical shell into the boss 4, inserting the pressing ring 3 into the threaded sleeve 2 to be matched, sleeving the conical shell from the small end, connecting the threaded sleeve 2 with the base 1 through threads, driving the pressing ring 3 to be close to the conical shell through the knob threaded sleeve 2 by the threaded sleeve 2, and accordingly enabling the conical hole 7 of the pressing ring 3 to be in contact with and pressed against the outer conical surface of the shell to finish clamping and fixing.
Adopt the utility model discloses: (1) the machining of the inner taper hole and the sealing surface of the tapered thin-wall shell can be finished by one-time clamping, so that the working efficiency is improved; (2) the shell is clamped and fixed by the tapered hole 7 of the compression ring 3, so that the stress is uniform, the clamping deformation is avoided, and the size out-of-tolerance is prevented; (3) the clamping device can be repeatedly used, and is not required to be machined and removed, so that the surface quality of the shell is high; (4) and a process block is not adopted, so that the length of the lane required by turning the sealing groove is reduced, and the processing precision is improved.
The middle of the side face of the base 1 is also provided with a limiting bulge 8, and the thread is positioned between one end of the base 1 close to the boss 4 and the limiting bulge 8. The screw sleeve 2 is convenient to limit, and the screw sleeve 2 is prevented from moving to the end of the thread to cause difficulty in clamping and disassembling.
The side surface of the screw sleeve 2 is provided with a wrench hole 9. The wrench knob threaded sleeve 2 is convenient to use and convenient to operate.
The number of the wrench holes 9 is four, and the wrench holes are uniformly distributed along the circumferential direction of the threaded sleeve. The wrench insertion position is changed in turn when the knob is turned, and convenience is improved.
One end of the boss 4 close to the pressing ring 3 is further provided with an elastic cone cylinder 10, and the side face of the elastic cone cylinder 10 is provided with a plurality of movable grooves 11. During clamping, the elastic conical cylinder 10 is in elastic contact with the inner wall of the conical shell, so that the force applied to the shell by the compression ring 3 is balanced and uniformly distributed, and the deformation is reduced; the movable groove 11 ensures the elastic deformation amplitude of the elastic cone cylinder 10, and when the taper angle of the elastic cone cylinder 10 is different from the taper angle of the inner hole of the conical shell, the difference is convenient to reduce, and the contact surface is increased.
The cone angle of the elastic cone cylinder 10 is smaller than that of the cone hole 7 of the press ring 3. The elastic force of the elastic cone cylinder 10 is increased when the clamping is convenient, the pressure between the compression ring 3 and the shell is convenient to balance, and the pressure distribution uniformity is improved.
The inner folded edge 5 is in clearance fit with the thread insert 2. The radial movement of the compression ring 3 is convenient to limit, the compression ring 3 is uniformly close to and clamps the conical shell, and meanwhile, the movement fluency of the compression ring 3 is ensured through clearance fit.
The outer folded edge 6 is in clearance fit with the compression ring 3. The radial movement of the compression ring 3 is convenient to limit, the compression ring 3 is uniformly close to and clamps the conical shell, and meanwhile, the movement fluency of the compression ring 3 is ensured through clearance fit.
The utility model also provides a clamping method of adopting above-mentioned toper thin wall casing processing clamping device, including following step:
a. clamping the base 1 by using a three-jaw clamp of a lathe, and sleeving the large end of the conical thin-wall shell into the boss 4 to enable the large end to contact the end surface of the base 1;
b. firstly, sleeving a compression ring 3 into a conical shell, sleeving a threaded sleeve 2 into the compression ring 3, supporting the conical thin-walled shell, then connecting the threaded sleeve 2 with a base 1 through threads until an inner folded edge 5 of the threaded sleeve 2 is contacted with an outer folded edge 6 of the compression ring 3, contacting the inner wall of a conical hole 7 of the compression ring 3 with the conical thin-walled shell, and then screwing the threaded sleeve 2;
c. and (3) turning an inner taper hole and a sealing groove at the small end of the conical thin-wall shell, finally detaching the threaded sleeve 2 and the pressing ring 3, and replacing the next conical thin-wall part for machining.
Adopt the utility model discloses, obviously reduced clamping work load, and need not the turning and get rid of the technology piece, improved machining efficiency.
Claims (7)
1. The utility model provides a toper thin wall casing processing clamping device which characterized in that: including base (1), swivel nut (2), clamping ring (3), base (1) one end is equipped with boss (4), and in boss (4) stretched into swivel nut (2), swivel nut (2) passed through threaded connection with base (1), and the one end that base (1) were kept away from in swivel nut (2) was equipped with interior hem (5), and clamping ring (3) one end is equipped with outer hem (6), and in swivel nut (2) was located in outer hem (6), outer hem (6) terminal surface and interior hem (5) contacted, and clamping ring (3) middle part is equipped with bell mouth (7).
2. The tapered thin-walled shell machining clamping device of claim 1, wherein: the side middle part of base (1) still is equipped with spacing arch (8), and the screw thread is located base (1) and is close to between boss (4) one end and spacing arch (8).
3. The tapered thin-walled shell machining clamping device of claim 1, wherein: the side surface of the screw sleeve (2) is provided with a wrench hole (9).
4. The tapered thin-walled shell machining clamping device as claimed in claim 3, wherein: the number of the wrench holes (9) is four, and the wrench holes are uniformly distributed along the circumferential direction of the screw sleeve.
5. The tapered thin-walled shell machining clamping device of claim 1, wherein: one end of the boss (4) close to the compression ring (3) is further provided with an elastic cone cylinder (10), and the side face of the elastic cone cylinder (10) is provided with a plurality of movable grooves (11).
6. The tapered thin-walled shell machining clamping device as claimed in claim 5, wherein: the cone angle of the elastic cone cylinder (10) is smaller than that of the cone hole (7) of the pressing ring (3).
7. The tapered thin-walled shell machining clamping device of claim 1, wherein: the inner folded edge (5) is in clearance fit with the threaded sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120679226.4U CN214489653U (en) | 2021-04-02 | 2021-04-02 | Conical thin-wall shell machining and clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120679226.4U CN214489653U (en) | 2021-04-02 | 2021-04-02 | Conical thin-wall shell machining and clamping device |
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| Publication Number | Publication Date |
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| CN214489653U true CN214489653U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120679226.4U Active CN214489653U (en) | 2021-04-02 | 2021-04-02 | Conical thin-wall shell machining and clamping device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101746A (en) * | 2021-12-20 | 2022-03-01 | 陈颖桢 | Machining equipment for punching arc workpiece and using method thereof |
| CN114160817A (en) * | 2021-04-02 | 2022-03-11 | 贵州航天风华精密设备有限公司 | Conical thin-wall shell machining and clamping device and method |
-
2021
- 2021-04-02 CN CN202120679226.4U patent/CN214489653U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160817A (en) * | 2021-04-02 | 2022-03-11 | 贵州航天风华精密设备有限公司 | Conical thin-wall shell machining and clamping device and method |
| CN114101746A (en) * | 2021-12-20 | 2022-03-01 | 陈颖桢 | Machining equipment for punching arc workpiece and using method thereof |
| CN114101746B (en) * | 2021-12-20 | 2024-02-02 | 陈颖桢 | Processing equipment for punching circular arc workpiece and application method thereof |
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