CN110961961A - Processing location frock of thin wall variable wall thickness part - Google Patents
Processing location frock of thin wall variable wall thickness part Download PDFInfo
- Publication number
- CN110961961A CN110961961A CN201911280093.7A CN201911280093A CN110961961A CN 110961961 A CN110961961 A CN 110961961A CN 201911280093 A CN201911280093 A CN 201911280093A CN 110961961 A CN110961961 A CN 110961961A
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- Prior art keywords
- wall
- thin
- variable
- mandrel
- thickness part
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- 210000004907 gland Anatomy 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000003825 pressing Methods 0.000 claims description 32
- 238000003754 machining Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000007514 turning Methods 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention 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 matched in use 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 invention relates to the field of machining equipment, in particular to a machining positioning tool for a 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.
Disclosure of Invention
The invention aims to provide a thin-wall and variable-wall-thickness part machining and positioning tool to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the 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 scheme of the 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 scheme of the 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 still further scheme of the 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 still further scheme of the invention: 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 still further scheme of the 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 still further scheme of the invention: the mandrel pressing plate mechanism comprises a step mandrel and a pressing plate matched with the mandrel.
As a still further scheme of the 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 still further scheme of the 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 still further scheme of the 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 invention has the advantages that on the basis of the traditional simple mandrel tool, the gland tool and the pressure plate tool are added, the edge warping phenomenon of the tool during processing of thin-wall parts is avoided, the processing stability of the thin-wall parts is improved, the thin-wall processing range is increased, the minimum size of the thin wall which can be processed by the traditional tool is about 0.25mm, and the minimum size of the thin wall which can be processed by the technical scheme provided by the invention 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 a mandrel capping mechanism of the present invention,
fig. 2 is a schematic view of the mandrel platen 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 machining positioning tool for 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 machining;
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.
Dimension a1 of the shim 4 is equal to the minimum diameter dimension a2 at the x thin wall in the thin wall variable wall thickness 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 FIG. 1, the minimum size of x 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 D1 of the thicknesses of two side walls of the thin-wall variable-wall-thickness part 1 shown in FIG. 2 is about 0.2-1 degree, and D2 is about 0.6-1.3 degree.
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 working principle of the invention is as follows: 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 description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. The utility model provides a processing location frock of thin wall variable wall thickness part which characterized in that includes dabber gland mechanism and dabber clamp plate mechanism that the cooperation was used when processing.
2. The thin-wall and variable-wall-thickness part machining and positioning tool according to claim 1 is characterized in that the mandrel pressing mechanism comprises a step mandrel (2), a pressing cover (3) and a gasket (4), the pressing cover is matched with the mandrel, the step mandrel (2) is used for being assembled with the thin-wall and variable-thickness part (1), the rotating center line of the step mandrel (2) is overlapped with the inner hole center line of the thin-wall and variable-thickness part (1), and the pressing cover (3) is connected with the step mandrel (2) through threads and used for fixing the flange excircle of the thin-wall and variable-thickness part (1).
3. The thin-wall and variable-wall-thickness part machining and positioning tool according to claim 2 is characterized in that the edge of the gasket (4) presses the edge of the 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-thickness 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.
4. The tooling for machining and positioning the thin-wall and variable-wall thickness part according to claim 2, 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), an external thread (8) is arranged on the outer surface of the thick part (22) of the step mandrel, and the internal thread (7) is matched with the external thread (8).
5. The tooling and positioning tool for thin-walled variable-wall-thickness parts according to claim 2, characterized in that the dimension A1 of the gasket (4) is equal to the minimum diameter dimension A2 of the thin-walled variable-wall-thickness part (1) at the x thin wall.
6. The tooling for machining and positioning the thin-wall and variable-wall-thickness part according to claim 2, 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 part (1).
7. The tooling for machining and positioning the thin-wall and variable-wall-thickness part according to claim 1, wherein the mandrel pressing plate mechanism comprises a step mandrel (2) and a pressing plate (6) matched with the mandrel.
8. The tooling for machining and positioning the thin-wall and variable-wall thickness part according to claim 7, wherein 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 and variable-wall thickness part (1), and the pressing end (62) presses the turned flange part of the thin-wall and variable-wall thickness part (1).
9. The tooling for machining and positioning the thin-wall and variable-wall thickness part according to claim 7, wherein the step mandrel 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).
10. The tooling for machining and positioning the thin-wall and variable-wall thickness part according to claim 7, 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 |
|---|---|---|---|
| CN201911280093.7A CN110961961A (en) | 2019-12-03 | 2019-12-03 | Processing location frock of thin wall variable wall thickness part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911280093.7A CN110961961A (en) | 2019-12-03 | 2019-12-03 | Processing location frock of thin wall variable wall thickness part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110961961A true CN110961961A (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911280093.7A Pending CN110961961A (en) | 2019-12-03 | 2019-12-03 | Processing location frock of thin wall variable wall thickness part |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002046005A (en) * | 2000-08-04 | 2002-02-12 | Nippon Sharyo Seizo Kaisha Ltd | Device for holding thin walled cylindrical workpiece |
| CN201702593U (en) * | 2010-05-31 | 2011-01-12 | 杭州大和热磁电子有限公司 | Machining jig for products such as sheets and rings |
| CN203484988U (en) * | 2013-08-15 | 2014-03-19 | 天津思为机器设备有限公司 | Grinding tool for centerless external circle of shaft sleeve |
| CN204321704U (en) * | 2014-12-22 | 2015-05-13 | 西安外事学院 | A kind of turning attachment being applicable to clamping sheet workpiece |
| CN104625664A (en) * | 2014-12-24 | 2015-05-20 | 厦门大学 | Numerical control machining method for harmonic reducer flexible gear bi-directional crowned tooth profile |
| CN204603909U (en) * | 2015-04-02 | 2015-09-02 | 湖北三江航天万峰科技发展有限公司 | A kind of anti-deformation device of thin-wall tube-shaped element processing |
| CN208005522U (en) * | 2018-03-20 | 2018-10-26 | 山东亨格尔制造有限责任公司 | A kind of film tensioning clamper |
| CN212600487U (en) * | 2019-12-03 | 2021-02-26 | 陕西渭河工模具有限公司 | Processing location frock of thin wall variable wall thickness part |
-
2019
- 2019-12-03 CN CN201911280093.7A patent/CN110961961A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002046005A (en) * | 2000-08-04 | 2002-02-12 | Nippon Sharyo Seizo Kaisha Ltd | Device for holding thin walled cylindrical workpiece |
| CN201702593U (en) * | 2010-05-31 | 2011-01-12 | 杭州大和热磁电子有限公司 | Machining jig for products such as sheets and rings |
| CN203484988U (en) * | 2013-08-15 | 2014-03-19 | 天津思为机器设备有限公司 | Grinding tool for centerless external circle of shaft sleeve |
| CN204321704U (en) * | 2014-12-22 | 2015-05-13 | 西安外事学院 | A kind of turning attachment being applicable to clamping sheet workpiece |
| CN104625664A (en) * | 2014-12-24 | 2015-05-20 | 厦门大学 | Numerical control machining method for harmonic reducer flexible gear bi-directional crowned tooth profile |
| CN204603909U (en) * | 2015-04-02 | 2015-09-02 | 湖北三江航天万峰科技发展有限公司 | A kind of anti-deformation device of thin-wall tube-shaped element processing |
| CN208005522U (en) * | 2018-03-20 | 2018-10-26 | 山东亨格尔制造有限责任公司 | A kind of film tensioning clamper |
| CN212600487U (en) * | 2019-12-03 | 2021-02-26 | 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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