CN212600487U - Processing location frock of thin wall variable wall thickness part - Google Patents
Processing location frock of thin wall variable wall thickness part Download PDFInfo
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- CN212600487U CN212600487U CN201922242739.4U CN201922242739U CN212600487U CN 212600487 U CN212600487 U CN 212600487U CN 201922242739 U CN201922242739 U CN 201922242739U CN 212600487 U CN212600487 U CN 212600487U
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Abstract
The utility model discloses a processing and positioning tool for thin-wall and variable-wall thickness parts, which comprises a mandrel gland mechanism and a mandrel platen mechanism which are used in cooperation during processing; the mandrel gland mechanism comprises a step mandrel, a gland and a gasket, the gland and the gasket are matched with the mandrel, the step mandrel is used for being assembled with the thin-wall variable-wall-thickness part for use, the rotating central line of the step mandrel is superposed with the inner hole central line of the thin-wall variable-wall-thickness part, and the gland is installed at the step of the step mandrel and used for fixing the flange excircle of the thin-wall variable-wall-thickness part. The problems of poor stability, weak strength, easy deformation and the like in the process of processing thin-wall and variable-wall thickness parts in the prior art are solved.
Description
Technical Field
The utility model relates to a machining equipment field specifically is a processing location frock of thin wall variable wall thickness part.
Background
With the development and progress of society, the thin-wall parts are widely applied to various industrial fields due to the advantages of light weight, material saving, compact structure, easy occurrence of required deformation forms and the like. The flexible gear in the harmonic reducer is a typical representative of thin-wall parts, for example, the flexible gear in a 25-model robot harmonic reducer has a thinnest wall of 0.18mm, a cylinder length of 30mm and a ratio of the length to the wall thickness of 167, and the part needs to be easily deformed in the use process, but the deformation of the part needs to be avoided as much as possible in the machining process, so that new difficulty is provided for the machining process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a processing location frock of thin wall variable wall thickness part to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a processing and positioning tool for thin-wall and variable-wall-thickness parts comprises a mandrel gland mechanism and a mandrel platen mechanism which are matched in use during processing.
As a further aspect of the present invention: the mandrel gland mechanism comprises a step mandrel, a gland and a gasket, the gland and the gasket are matched with the mandrel, the step mandrel is used for being assembled with the thin-wall variable-wall-thickness part for use, the rotating central line of the step mandrel is superposed with the inner hole central line of the thin-wall variable-wall-thickness part, and the gland is installed at the step of the step mandrel and used for fixing the flange excircle of the thin-wall variable-wall-thickness part.
As a further aspect of the present invention: the edge of the gasket presses the edge of the barrel opening of the thin-wall variable-wall-thickness part, the through hole on the gasket corresponds to the threaded hole on the step mandrel, the center line of the through hole on the gasket is superposed with the center line of the step mandrel and the center line of the thin-wall variable-wall-thickness part, and the gasket, the thin-wall variable-wall-thickness part and the step mandrel are fixed together by utilizing the screw to penetrate through the through hole on the gasket and then extend into the threaded hole on the step mandrel.
As a further aspect of the present invention: the cross-section of gland is the L type, and the part that the long arm of L type corresponds is the fixed part, and the part that the short arm of L type corresponds is the portion that compresses tightly, and the portion that compresses tightly pushes down the technology step of the flange excircle department of thin wall variable wall thickness part, and the internal surface of fixed part is provided with the internal thread, has the external screw thread on the surface of the thick portion corresponding position of step dabber, internal thread and external screw thread cooperation.
As a further aspect of the present invention: the outer diameter dimension A1 of the shim is equal to the minimum diameter dimension A2 at the x thin wall in the thin wall variable wall thickness part.
As a further aspect of the present invention: the round corner R2 on the stepped mandrel is the same as the round corner R1 of the thin-wall variable-wall-thickness part.
As a further aspect of the present invention: the mandrel pressing plate mechanism comprises a step mandrel and a pressing plate matched with the mandrel.
As a further aspect of the present invention: the pressing plate comprises a fixed end and a pressing end, the fixed end presses the edge of the opening of the thin-wall variable-wall-thickness part, and the pressing end presses the turned flange part of the thin-wall variable-wall-thickness part.
As a further aspect of the present invention: an end surface groove is formed in the step mandrel, and the size of the small outer circle dimension E2 of the technological step of the thin-wall variable-wall-thickness part is between the size E1 and the size E3 of the end surface groove.
As a further aspect of the present invention: the fixed end is fixed with the thin-wall variable-wall-thickness part and the step mandrel together through screws, and meanwhile, the tail end of the pressing end just props against the turned flange.
The beneficial effects of the utility model reside in that, on the basis of traditional simple dabber frock, gland frock and clamp plate frock have been increased, the limit phenomenon that sticks up that appears when processing thin wall part to this type of frock has been avoided, the processing stability of thin wall part has been increased, the scope of thin wall processing has been increased simultaneously, the thin wall minimum dimension that traditional frock machineable is about 0.25mm, the thin wall minimum dimension that the technical scheme that this invention provided can process is about 0.1 mm.
Drawings
In order to illustrate the embodiments of the present application more clearly, the drawings that are needed for describing the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Figure 1 is a schematic view of the mandrel capping mechanism of the present invention,
fig. 2 is a schematic view of the mandrel pressing mechanism of the present invention.
In the figure: 1. the thin-wall variable-thickness part comprises a thin-wall variable-thickness part, 2 parts of a step mandrel, 3 parts of a gland, 4 parts of a gasket, 5 parts of a screw, 6 parts of a pressure plate, 7 parts of internal threads, 8 parts of external threads, 9 parts of a technological step, 10 parts of an end surface groove, 21 parts of a threaded hole, 22 parts of a thick part, 31 parts of a fixing part, 32 parts of a pressing part, 61 parts of a fixing end and 62 parts of a pressing end.
Detailed Description
To make the objects, aspects and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the present application are shown, and in which certain features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for the sake of clarity and conciseness.
Referring to fig. 1, in an embodiment of the present invention, a positioning tool for processing a thin-wall and variable-wall thickness part includes a mandrel pressing mechanism and a mandrel pressing plate mechanism, which are used in cooperation during processing;
dabber gland mechanism include step dabber 2 and cooperation dabber gland 3 and gasket 4, step dabber 2 and the assembly of thin wall variable wall thickness part 1 use, the rotation center line of step dabber 2 coincide with the hole center line of thin wall variable wall thickness part 1, the edge of gasket 4 push down the 1 bung hole edge of thin wall variable wall thickness part, gasket 4 on the through-hole correspond with the epaxial screw hole of step dabber, and the center line coincides with the center line of step dabber center line, thin wall variable wall thickness part 1. The screw 5 penetrates through a through hole in the gasket and then extends into a threaded hole 21 in the step mandrel, so that the gasket 4, the thin-wall variable-wall-thickness part 1 and the step mandrel 2 are fixed together.
The fillet R2 on the step mandrel 2 is the same as the fillet R1 of the thin-wall variable-wall-thickness part 1, so that the thin-wall variable-wall-thickness part 1 is ensured to be attached to the step mandrel 2 as closely as possible, and the stability is improved.
The outer diameter A1 of the shim 4 is equal to the minimum diameter A2 at the thin wall x in the thin wall part 1.
In the mandrel capping mechanism, the length B1 of the part, extending into the inner hole of the thin-wall and variable-wall thickness part 1, of the stepped mandrel 2 is as long as possible, but cannot be greater than the total length B2 of the thin wall part 1 x.
As shown in figure 1, the minimum size of x of the thin-wall variable-wall-thickness part 1 is about 0.1mm, B2/x is about 150-250, the minimum size of y is about 0.15mm, C1/y is about 50-80, the variation range of the two side wall thicknesses of the thin-wall variable-wall-thickness part 1 as shown in figure 2 is D1 is about 0.2-1 degree, and D2 is about 0.6-1.3 degrees.
The gland 3 is arranged at the step of the step mandrel 2 and used for fixing the flange excircle of the thin-wall variable-wall-thickness part 1.
The section of the gland 3 is L-shaped, the part corresponding to the long arm of the L-shaped is a fixing part 31, the part corresponding to the short arm of the L-shaped is a pressing part 32, the pressing part 32 presses the process step 9 at the outer circle of the flange of the thin-wall variable-wall-thickness part 1, the inner surface of the fixing part is provided with an internal thread 7, the outer surface of the thick part 22 of the step core shaft at the corresponding position is provided with an external thread 8, and the internal thread 7 is matched with the external thread 8.
Under the state that the mandrel gland mechanism is used, the thin-wall and variable-wall-thickness part 1 is ensured not to be warped during the turning process of the part, and the path of the cutter during the turning process is from A → B → C → E as shown in figure 1.
As shown in fig. 2, the mandrel pressing mechanism includes a stepped mandrel 2 and a pressing plate 6 matched with the stepped mandrel, the pressing plate 6 includes a fixed end 61 and a pressing end 62, the fixed end 61 presses the rim of the barrel mouth of the thin-wall variable-wall thickness part 1, the pressing end 62 presses the turned flange part of the thin-wall variable-wall thickness part 1, and the pressing plate 6 cannot press the thin-wall part of the thin-wall variable-wall thickness part 1.
The step mandrel is provided with an end surface groove 10, the size of the small outer circle dimension E2 of the technical step of the thin-wall variable-wall-thickness part 1 is between the size E1-E3 of the end surface groove 10, the end surface of the step mandrel 2 is guaranteed not to be damaged when the technical step 9 is turned in the mandrel plate pressing mechanism, and the step mandrel 2 can be reused.
The fixed end 61 is fixed with the thin-wall and variable-wall thickness part 1 and the step mandrel 2 through the screw 5, meanwhile, the tail end of the pressing end 62 just props against the turned flange part, and the technological step 9 is turned off in the fixed state. The path taken by the tool during turning is from C → D as shown in fig. 2.
The utility model discloses a theory of operation is: the thin-wall and variable-wall-thickness part 1 to be processed is matched with the mandrel gland mechanism to be used, the turning of the whole thin-wall and variable-wall-thickness part is completed, the thickness and the thickness change state of the thin-wall and variable-wall-thickness part meet the requirements of the part, then the gland and the gasket in the mandrel gland mechanism are disassembled, the gland and the gasket are replaced by a pressure plate structure in the mandrel pressure plate mechanism and are fixed, and in the state, the process step left at the outer circle of the flange after the previous processing is removed through turning, so that the processing of the whole thin-wall and variable-wall-thickness part 1 is completed. The invention ensures that the thin-wall and variable-wall thickness part 1 is clamped and survived at one time in the turning process by utilizing the matching use of the mandrel gland mechanism and the mandrel press plate mechanism.
According to the technical scheme provided by the invention, a gland tooling and a pressure plate tooling are added on the basis of a traditional simple mandrel tooling, so that the edge warping phenomenon of the tooling during processing of thin-wall parts is avoided, the thin-wall processing range is also increased, the minimum size of a thin wall processed by the traditional tooling is about 0.25mm, and the minimum size of the thin wall processed by the technical scheme provided by the invention is about 0.1 mm. The invention increases the processing stability of the thin-wall parts and has good manufacturability in the mass production of the thin-wall parts.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A processing and positioning tool for thin-wall and variable-wall-thickness parts is characterized by comprising a mandrel gland mechanism and a mandrel platen mechanism which are matched to be used in processing;
the mandrel pressing plate mechanism comprises a step mandrel (2) and a pressing plate (6) matched with the step mandrel (2); the pressing plate (6) comprises a fixed end (61) and a pressing end (62), the fixed end (61) presses the edge of the barrel mouth of the thin-wall variable-wall-thickness part (1), and the pressing end (62) presses the turned flange part of the thin-wall variable-wall-thickness part (1);
dabber gland mechanism, gland (3) and gasket (4) including step dabber (2) and cooperation step dabber (2), step dabber (2) be used for with thin wall variable wall thickness part (1) assembly use, the hole central line coincidence of the rotation center line of step dabber (2) and thin wall variable wall thickness part (1), gland (3) with step dabber (2) pass through threaded connection for the flange excircle of fixed thin wall variable wall thickness part (1).
2. The thin-wall and variable-wall-thickness part machining and positioning tool according to claim 1 is characterized in that the edge of the gasket (4) presses the edge of a barrel opening of the thin-wall and variable-wall-thickness part (1), a through hole in the gasket (4) corresponds to a threaded hole in the step mandrel (2), the central line of the through hole is superposed with the central line of the step mandrel and the central line of the thin-wall and variable-wall and thick part (1), and a screw (5) penetrates through the through hole in the gasket and then extends into the threaded hole (21) of the step mandrel, so that the gasket (4), the thin-wall and variable-wall-thickness part (1) and the step mandrel (2) are fixed together.
3. The tooling for machining and positioning the thin-wall and variable-wall-thickness part according to claim 1, wherein the cross section of the gland (3) is L-shaped, the part corresponding to the long arm of the L-shaped is a fixing part (31), the part corresponding to the short arm of the L-shaped is a pressing part (32), the pressing part (32) presses the technological step (9) at the outer circle of the flange of the thin-wall and variable-wall-thickness part (1), the inner surface of the fixing part is provided with an internal thread (7), the outer surface of the thick part (22) of the step mandrel at the corresponding position is provided with an external thread (8), and the internal thread (7) is matched with the external thread (8).
4. The tooling and positioning tool for thin-wall and variable-wall thickness parts according to claim 1, wherein the outer diameter A1 of the gasket (4) is equal to the minimum diameter A2 of the thin-wall and variable-wall thickness part (1) at the x thin wall.
5. The tooling for machining and positioning thin-wall and variable-wall-thickness parts according to claim 1, wherein the round corners R2 on the stepped mandrel (2) are the same as the round corners R1 of the thin-wall and variable-wall-thickness parts (1).
6. The tooling for machining and positioning the thin-wall and variable-wall-thickness part according to claim 1, wherein the step mandrel (2) is provided with an end surface groove (10), and the small outer circle dimension E2 of the technological step of the thin-wall and variable-wall-thickness part (1) is between the dimensions E1 and E3 of the end surface groove (10).
7. The tooling for machining and positioning the thin-wall and variable-wall-thickness part according to claim 1, wherein the fixed end (61) is fixed with the thin-wall and variable-wall-thickness part (1) and the stepped mandrel (2) through a screw (5), and the tail end of the pressing end (62) is just propped against the turned flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922242739.4U CN212600487U (en) | 2019-12-03 | 2019-12-03 | Processing location frock of thin wall variable wall thickness part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922242739.4U CN212600487U (en) | 2019-12-03 | 2019-12-03 | Processing location frock of thin wall variable wall thickness part |
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| CN212600487U true CN212600487U (en) | 2021-02-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961961A (en) * | 2019-12-03 | 2020-04-07 | 陕西渭河工模具有限公司 | Processing location frock of thin wall variable wall thickness part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961961A (en) * | 2019-12-03 | 2020-04-07 | 陕西渭河工模具有限公司 | Processing location frock of thin wall variable wall thickness part |
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