CN215615194U - Internal stay formula machine tooling tool of watch case - Google Patents
Internal stay formula machine tooling tool of watch case Download PDFInfo
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- CN215615194U CN215615194U CN202121525573.8U CN202121525573U CN215615194U CN 215615194 U CN215615194 U CN 215615194U CN 202121525573 U CN202121525573 U CN 202121525573U CN 215615194 U CN215615194 U CN 215615194U
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- watch case
- shaft core
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- contraction
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Abstract
The utility model discloses an internal-supporting machining jig for a watch case, which comprises a chuck main body, wherein a supporting ring seat and an expansion and contraction locking mechanism which penetrates through the supporting ring seat to be exposed are arranged on the chuck main body, the expansion and contraction locking mechanism comprises an expansion and contraction driving shaft core fixedly arranged on the chuck main body and an elastic collet chuck positioned on the periphery of the expansion and contraction driving shaft core, and a telescopic driving source for driving the elastic collet chuck to axially expand and contract and move is arranged in the chuck main body. The utility model adopts the annular support and the back-pull expansion and contraction type matching, has the double locking characteristics of radial clamping and back-pull friction, and improves the locking position precision and the locking stability. The expansion driving shaft core is matched with the elastic cylinder wall, so that a certain radially outward expansion matching tolerance can be provided, the requirement on relative locking stability is met, meanwhile, hard clamping damage cannot be generated on the hand watch case, and a workpiece is protected. The whole design is succinct ingenious, easily makes, and stable in structure is reliable, and effective life is longer, possesses higher cost advantage, installs and removes the convenient high efficiency of operation of unloading.
Description
Technical Field
The utility model relates to an internal-support type machining jig for a watch case, and belongs to the technical field of machining auxiliary jigs.
Background
Turning refers to lathe machining as part of machining. Lathe machining mainly uses a lathe tool to perform turning machining on a rotating workpiece. Lathes are used primarily for machining shafts, discs, sleeves and other workpieces having a surface of revolution, and are the most widely used type of machine tool in machine manufacturing and repair plants.
When turning operation is carried out, the workpiece needs to be effectively and fixedly loaded, so that the clamp can be adopted, and the clamp is used for stably clamping the workpiece, so that the workpiece is ensured to stably run in the turning displacement process.
There is a watch case at present, and it includes watch case main part, is equipped with dial plate ring seat and the table lid ring seat that sets up with this dial plate ring seat looks interval on this watch case main part, is equipped with the ring on the inner wall of this dial plate ring seat and concavely.
When the machine is in machining operation, the dial ring seat needs to be clamped and fixed so as to meet the requirement of finish milling operation of the dial ring seat, and generally, the dial ring seat needs to be locked by expanding the inner hole channel of the dial ring seat. Traditional anchor clamps adopt radial displacement's many jack catchs design, expand the lock solid that realizes the internal pore outward through the jack catch, expand the jack catch outward and adopt fixed relative stroke, it has certain relative tolerance, the difficult control of radial displacement precision simultaneously, cause the impaired condition of dial plate ring seat to take place easily, in addition, watch case main part need carry on the axial spacing when carrying on, traditional bearing structure carries on spacingly to two watchband bases of watch case main part, hardly ensure its limit position precision, there is great influence in product machining precision.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provide an internal-support type machining jig for a watch case, aiming at the problem that the displacement precision and the limiting and supporting precision of the traditional external-expansion jack catch have large precision defects.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
an internal-supporting machining jig for a watch case comprises a watch case body, wherein a dial ring seat and a watch cover ring seat are arranged on the watch case body at intervals, a ring groove is arranged on the inner wall of the dial ring seat,
the internal-supporting machining jig comprises a chuck main body, a supporting ring seat matched with the ring concave and an expansion and contraction locking mechanism penetrating through the supporting ring seat to be exposed are arranged on the chuck main body,
the expansion and contraction locking mechanism comprises an expansion and contraction driving shaft core fixedly arranged on the chuck main body and an elastic collet chuck positioned on the periphery of the expansion and contraction driving shaft core,
and a telescopic driving source for driving the elastic collet chuck to axially expand and contract and displace is arranged in the chuck main body.
Preferably, the collapsible driving shaft core comprises a shaft core flange locked with the chuck body into a whole and a shaft core body arranged on the shaft core flange, the elastic collet comprises a ring seat body and an elastic cylinder wall,
the telescopic driving source comprises a piston body arranged in the chuck main body, and the piston body is provided with a plurality of guide connecting rods which penetrate through the shaft core flange plate and are connected with the ring seat main body.
Preferably, the shaft core flange plate is provided with a sliding fit cavity matched with the piston body in a sliding and guiding manner.
Preferably, a stroke clearance is arranged between the piston body and the shaft core flange plate.
Preferably, the free end of the shaft core main body is provided with a driving conical end, the elastic cylinder wall is provided with a plurality of clamping parts which are circumferentially and uniformly distributed at intervals and matched with the driving conical end, and the clamping parts are provided with conical wall surfaces used for being matched with the driving conical end.
Preferably, a hollow groove part is arranged on a gap between every two adjacent clamping parts.
Preferably, the support ring seat comprises an annular base which is locked and fixed with the shaft core flange plate, and an extended annular support part which is matched with the annular concave is arranged on the annular base.
Preferably, a conical reinforcing support part for avoiding the meter cover ring seat is arranged between the annular base and the annular support part.
The utility model has the following beneficial effects:
1. the annular support is matched with the back-pull expansion and contraction type, and the locking device has the characteristics of radial clamping and back-pull friction double locking, so that the locking position precision and the locking stability are improved.
2. The expansion driving shaft core is matched with the elastic cylinder wall, so that a certain radially outward expansion matching tolerance can be provided, the requirement on relative locking stability is met, meanwhile, hard clamping damage cannot be generated on the hand watch case, and a workpiece is protected.
3. The whole design is succinct ingenious, easily makes, and stable in structure is reliable, and effective life is longer, possesses higher cost advantage, installs and removes the convenient high efficiency of operation of unloading.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural view of an internal stay type machining jig of a watch case according to the present invention.
Fig. 2 is a schematic cross-sectional view of an internal stay type machining jig of a watch case according to the present invention.
Fig. 3 is an enlarged schematic view of a portion a of fig. 2.
Fig. 4 is a schematic top view of an internal stay type machining jig of a watch case according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the relevant portions of the related inventions are shown in the drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The utility model provides an internal-supporting type machining jig for a watch case, as shown in figures 1 to 4, the watch case 10 comprises a watch case body 11, a dial ring seat 12 and a watch cover ring seat 13 which is arranged at intervals with the dial ring seat are arranged on the watch case body 11, and a ring groove 14 is arranged on the inner wall of the dial ring seat.
As shown in fig. 1 to 4, the internal-supporting machining jig includes a chuck body 1, and the chuck body 1 is provided with a supporting ring seat 2 for being matched with a ring recess 14 and an expansion-contraction locking mechanism 3 exposed through the supporting ring seat.
The collapsible locking mechanism 3 includes a collapsible driving shaft core 4 fixedly provided on the chuck body 1, and an elastic collet 5 located on the outer periphery of the collapsible driving shaft core 4. A telescopic driving source 6 for driving the elastic collet chuck to axially extend and retract is arranged in the chuck main body 1.
The specific implementation process and principle description are as follows:
firstly, the internal-support machining jig is used for externally expanding and clamping the inner hole of the dial ring seat 12 of the watch case 10.
When the watch case 10 is mounted, the dial ring 12 is fitted to the elastic collet 5, and the ring recess 14 of the dial ring 12 is brought into contact with the support end face of the support ring 2.
Then carry out the axial back-pull operation to elastic collet chuck 5 through flexible driving source 6, at this moment because the expansion and contraction drives axle core 4 internal stay for elastic collet chuck 5 realizes the linkage stroke of radial flaring and axial displacement, and the tight fit of internal expanding is realized to set of wheel ring seat 12 to the radial flaring in-process, simultaneously because it still possesses synchronous axial displacement, makes elastic collet chuck 5 can realize the friction lock solid of axial back-pull, satisfies watch case 10's axial stability, effectively prevents it to appear axial runout and pine and takes off, and machining precision and machining stability obtain great promotion.
In one embodiment, the collapsible drive shaft 4 includes a shaft flange 41 that is fixedly integrated with the chuck body and a shaft body 42 that is disposed on the shaft flange, and the resilient collet includes a ring body 51 and a resilient cylinder wall 52.
The telescopic drive source 6 includes a piston body 61 provided in the chuck body, and the piston body 61 is provided with a plurality of guide links 62 connected to the ring main body 51 through a shaft flange.
Specifically, the piston body 61 is provided with a telescopic driving source, and can be driven by a driving source such as an air cylinder or an oil cylinder, and the piston body 61 is interlocked with the elastic collet by the guide link 62 during the extension and retraction, thereby satisfying the driving requirement for the relative axial displacement between the elastic cylinder wall 52 and the shaft core main body 42.
The guide connecting rod 62 can also realize certain displacement precision guide, and the requirement of the elastic collet chuck 5 on displacement precision is met.
In one embodiment, the mandrel flange 41 is provided with a slip fit chamber 410 in sliding guiding engagement with the piston body. And a stroke gap 7 is arranged between the piston body and the shaft core flange.
The sliding fit chamber 410 and the guide connecting rod 62 can be matched to improve the linear displacement precision, ensure the matching precision of the elastic collet chuck 5 and the shaft core main body 42, and ensure more accurate and reliable clamping end face.
And the stroke clearance 7 is used for carrying out initial displacement limit and providing a back-pull stroke on the piston body, and meets the requirements of initial alignment precision and back-pull forming.
Of course, the chuck body 1 can be further internally provided with a backward-pulling limiting part 8 for backward pulling the piston body, so that the requirement of bidirectional accurate stroke limiting is met.
In one embodiment, the free end of the shaft core main body 42 is provided with a driving conical end 420, the elastic cylinder wall 52 is provided with a plurality of clamping parts 520 which are uniformly distributed at intervals in the circumferential direction and are matched with the driving conical end, and the clamping parts 520 are provided with conical wall surfaces 521 which are used for being matched with the driving conical end.
Specifically, the conical surface matching is realized by the driving conical end 420 and the conical wall surface 521, so that the requirement of radial expansion and contraction deformation is met, and the locking and locking function of radial outward expansion is realized.
In one embodiment, the gap between adjacent clamping portions is provided with a hollowed-out groove portion 9.
The hollow-out groove 9 is mainly used for providing the expansion and contraction deformation quantity of the clamping part 520, so that the radial expansion and contraction deformation is smoother, and the expansion and contraction fatigue degree is enhanced.
In one embodiment, the support ring seat 2 includes an annular base 21 locked with the spindle flange, and the annular base 21 is provided with an extended annular support portion 22 for engaging with the annular recess. A conical reinforcing supporting part 23 for avoiding the watch cover ring seat is arranged between the annular base and the annular supporting part.
Specifically speaking, the size of the ring recess is small, so that the traditional support is used for limiting and supporting the position of the belt, and the support position precision and the surface horizontal stability of the belt are difficult to guarantee.
Through the above description, it can be found that the internal-supporting machining jig for the watch case adopts the annular support and the back-pull expansion-contraction type matching, has the double locking characteristics of radial clamping and back-pull friction, and improves the locking position precision and the locking stability. The expansion driving shaft core is matched with the elastic cylinder wall, so that a certain radially outward expansion matching tolerance can be provided, the requirement on relative locking stability is met, meanwhile, hard clamping damage cannot be generated on the hand watch case, and a workpiece is protected. The whole design is succinct ingenious, easily makes, and stable in structure is reliable, and effective life is longer, possesses higher cost advantage, installs and removes the convenient high efficiency of operation of unloading.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the utility model, and the technical scheme after the changes or substitutions can fall into the protection scope of the utility model.
Claims (8)
1. The utility model provides an interior formula machine tooling tool that props of watch case, watch case includes watch case main part, be equipped with dial plate ring stand in the watch case main part and with the dial plate ring stand looks spaced apart the table lid ring stand that sets up, it is concave its characterized in that to be equipped with the ring on the inner wall of dial plate ring stand:
the internal-supporting machining jig comprises a chuck main body, a supporting ring seat matched with the ring concave and an expansion and contraction locking mechanism penetrating through the supporting ring seat to be exposed are arranged on the chuck main body,
the expansion and contraction locking mechanism comprises an expansion and contraction driving shaft core fixedly arranged on the chuck main body and an elastic collet chuck positioned on the periphery of the expansion and contraction driving shaft core,
and a telescopic driving source for driving the elastic collet chuck to axially expand and contract and displace is arranged in the chuck main body.
2. The internal stay formula machining tool of watch case of claim 1, characterized in that:
the expansion and contraction driving shaft core comprises a shaft core flange which is locked with the chuck body into a whole and a shaft core body arranged on the shaft core flange, the elastic collet chuck comprises a ring seat body and an elastic cylinder wall,
the telescopic driving source comprises a piston body arranged in the chuck main body, and the piston body is provided with a plurality of guide connecting rods which penetrate through the shaft core flange plate and are connected with the ring seat main body.
3. The internal stay formula machining tool of watch case of claim 2, characterized in that:
and the shaft core flange plate is provided with a sliding fit cavity matched with the piston body in a sliding guide manner.
4. The internal stay formula machining tool of watch case of claim 2, characterized in that:
and a stroke clearance is arranged between the piston body and the shaft core flange plate.
5. The internal stay formula machining tool of watch case of claim 2, characterized in that:
the free end of the shaft core main body is provided with a driving cone end, the elastic cylinder wall is provided with a plurality of clamping parts which are circumferentially and uniformly distributed at intervals and matched with the driving cone end, and the clamping parts are provided with cone wall surfaces which are used for being matched with the driving cone end.
6. The internal stay formula machining tool of watch case of claim 5, characterized in that:
and hollow groove parts are arranged on the gaps between the adjacent clamping parts.
7. The internal stay formula machining tool of watch case of claim 2, characterized in that:
the supporting ring seat comprises an annular base which is fixedly locked with the shaft core flange plate, and an extended annular supporting part which is matched with the annular concave is arranged on the annular base.
8. The internal stay formula machining tool of watch case of claim 7, characterized in that:
and a conical reinforcing supporting part used for avoiding the meter cover ring seat is arranged between the annular base and the annular supporting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121525573.8U CN215615194U (en) | 2021-07-01 | 2021-07-01 | Internal stay formula machine tooling tool of watch case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121525573.8U CN215615194U (en) | 2021-07-01 | 2021-07-01 | Internal stay formula machine tooling tool of watch case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215615194U true CN215615194U (en) | 2022-01-25 |
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ID=79948107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121525573.8U Active CN215615194U (en) | 2021-07-01 | 2021-07-01 | Internal stay formula machine tooling tool of watch case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215615194U (en) |
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2021
- 2021-07-01 CN CN202121525573.8U patent/CN215615194U/en active Active
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