CN113118801A - Special fixture for copper bush part machining - Google Patents
Special fixture for copper bush part machining Download PDFInfo
- Publication number
- CN113118801A CN113118801A CN202110404499.2A CN202110404499A CN113118801A CN 113118801 A CN113118801 A CN 113118801A CN 202110404499 A CN202110404499 A CN 202110404499A CN 113118801 A CN113118801 A CN 113118801A
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- China
- Prior art keywords
- workpiece
- finish turning
- mandrel
- clamp
- section
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Jigs For Machine Tools (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a special fixture for machining a copper bush part, which comprises an inner hole finish turning fixture assembly, an outer circle semi-finish turning fixture assembly and an outer circle finish turning fixture assembly; the finish turning inner hole clamp assembly comprises a clamping sleeve and an end cover; the jacket consists of a machine tool clamping section, a workpiece placing section and a workpiece locking section; the machine tool clamping section is arranged on the front side where a workpiece is placed; a workpiece locking section is arranged on the rear side where the workpiece is placed; the end cover consists of a clamping sleeve locking end and a workpiece positioning end, wherein 4 process holes at equal intervals are formed in the outer contour of the end cover and used for locking the end cover; the special fixture for processing fully considers the structural characteristics and the processing requirements of the workpiece to be processed in corresponding procedures, and three sets of fixtures are designed. The fixture is convenient and simple to clamp, accurate in positioning, firm and reliable in clamping, accurate in tool setting, and capable of efficiently improving the machining precision and the production efficiency of the copper bush parts.
Description
Technical Field
The invention relates to a special fixture for mechanical manufacturing, in particular to a special fixture for machining a copper bush part.
Background
The copper bush is a thin-walled part and has high processing precision requirement. The wall surface is thin, and the deformation is easy to occur in the processing process, so the problems of unstable clamping, low clamping efficiency, influence on form and position tolerance (cylindricity, coaxiality and the like) of a processed workpiece and the like often occur when the existing clamp is used for processing. Therefore, the defective rate of the copper bush product is high, waste of raw materials is caused, and the production cost is increased, so that a special fixture needs to be designed to improve the processing precision of the copper bush, improve the processing efficiency of the copper bush, and reduce the production cost.
Disclosure of Invention
The invention aims to provide a special fixture for processing a copper bush part, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a special fixture for processing a copper bush part comprises an inner hole finish turning fixture assembly, a semi-finish turning outer circle fixture assembly and an outer circle finish turning fixture assembly; the finish turning inner hole clamp assembly comprises a clamping sleeve and an end cover; the jacket consists of a machine tool clamping section, a workpiece placing section and a workpiece locking section; the machine tool clamping section is arranged on the front side where a workpiece is placed; a workpiece locking section is arranged on the rear side where the workpiece is placed; the end cover comprises a clamping sleeve locking end and a workpiece positioning end, wherein 4 process holes are formed in the outer contour of the end cover at equal intervals and used for locking the end cover.
As a still further scheme of the invention: the semi-finish turning outer circle clamp assembly comprises a finish turning mandrel, a finish turning retaining ring and a nut; the finish turning mandrel consists of a machine tool clamping section, a workpiece placing section and a workpiece locking section; the machine tool clamping section is arranged on the front side where the workpiece is placed; a workpiece locking section is arranged on the rear side where the workpiece is placed; the finish turning baffle ring is provided with an inner hole; the inner hole is matched with the finish turning mandrel, and the size of the outer circle is matched with a workpiece to be processed.
As a still further scheme of the invention: the fine grinding excircle clamp assembly comprises a fine grinding mandrel, a fine grinding baffle ring and a nut; the fine grinding mandrel consists of a jacking end, a workpiece placing section and a workpiece locking section; the workpiece placing section is arranged between the jacking end and the workpiece locking section; the fine grinding baffle ring is provided with an inner hole, the inner hole is matched with the fine grinding mandrel, and the size of the outer circle is matched with a workpiece to be processed.
A use method of a finish turning inner hole clamp assembly in a special clamp for machining a copper sleeve part comprises the following steps: one end of the jacket is clamped by the three-jaw chuck, a workpiece is placed at one end of the cavity, and the workpiece is in clearance fit with the pipe sleeve, so that the workpiece is convenient to clamp, the internal stress is eliminated in the machining process, and the cylindricity of the workpiece can be well guaranteed; the axial size of the workpiece is slightly larger than that of the cavity of the pipe sleeve, the end cover is in threaded connection with the pipe sleeve, an auxiliary tool can be inserted into 4 process holes in the outer contour of the end cover to enable the end cover to be screwed or disassembled, the end cover is used for axially fixing and clamping the workpiece, and the circumferential movement of the workpiece is further fixed.
A use method of a semi-finish turning outer circle clamp assembly in a special clamp for machining a copper sleeve part comprises the following steps: one end of the finish turning mandrel is clamped by a three-jaw chuck, a workpiece is sleeved into the finish turning mandrel, and the workpiece is in clearance fit with the finish turning mandrel, so that the workpiece is convenient to clamp, the internal stress is favorably eliminated in the machining process, and the cylindricity of the workpiece can be well ensured; the shaft shoulder and the finish turning baffle ring axially fix and clamp the workpiece, and further fix the circumferential motion of the workpiece; and the finish turning baffle ring is fixed by utilizing the threaded connection of the nut and the mandrel.
A use method of a clamp assembly for accurately grinding an excircle in a special clamp for processing a copper bush part comprises the following steps: the workpieces are sleeved at the two ends of the fine grinding mandrel, the two workpieces are processed at one time, the workpieces and the fine grinding mandrel are still in clearance fit, the workpieces are convenient to clamp, the internal stress can be eliminated in the processing process, and the processing precision and the cylindricity can be well guaranteed; the workpiece is axially fixed and clamped at two ends by the fine grinding baffle ring, and the circumferential motion of the workpiece is further fixed; and the fine grinding baffle ring is fixed by utilizing the threaded connection of the nut and the mandrel.
Compared with the prior art, the invention has the beneficial effects that:
the special fixture for processing fully considers the structural characteristics and the processing requirements of the workpiece to be processed in corresponding procedures, and three sets of fixtures are designed. The fixture is convenient and simple to clamp, accurate in positioning, firm and reliable in clamping, accurate in tool setting, and capable of efficiently improving the machining precision and the production efficiency of the copper bush parts. In the three groups of clamps, certain gaps are reserved between the workpiece and the clamps to ensure that the workpiece has enough space to release residual internal stress after the turning of the cutter, so that the machining precision of the copper bush can be further ensured, and the strength and the reliability of the copper bush are improved. In addition, in the process of accurately grinding the excircle, the clamp can process two workpieces at one time, the processing efficiency of the accurate grinding process is greatly improved, most of parts adopted by the clamp are standard parts, the type selection is convenient, the interchangeability is good, and the production cost is low. .
Drawings
FIG. 1 is a schematic view of a workpiece machined by a special fixture for machining a copper bush part;
FIG. 2 is a schematic view of a finish turning inner hole clamp in a special clamp for machining a copper bush part;
FIG. 3 is a schematic view of a radial section of a finish turning inner hole clamp in a special clamp for machining a copper bush part;
FIG. 4 is a schematic view of a jacket in a special fixture for machining a copper bush part;
FIG. 5 is a schematic view of an end cap of a special fixture for machining a copper bush part;
FIG. 6 is a schematic view of a semi-finish turning outer circle clamp in a special clamp for machining a copper bush part;
FIG. 7 is a schematic view of a finish turning mandrel in a special fixture for machining a copper bush part;
FIG. 8 is a schematic view of a stop ring finely turned in a special fixture for machining a copper bush part;
FIG. 9 is a schematic view of a clamp for finely grinding an outer circle in a special clamp for machining a copper bush part;
FIG. 10 is a schematic view of a radial section of a finish turning outer circle clamp in a special clamp for machining a copper bush part;
FIG. 11 is a schematic view of a fine grinding mandrel in a special fixture for machining a copper bush part;
FIG. 12 is a schematic view of a fine grinding baffle ring in a special fixture for machining a copper bush part.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1 to 12, in the embodiment of the present invention, a special fixture for machining a copper bush part includes an inner hole finish turning fixture assembly, an outer circle semi-finish turning fixture assembly and an outer circle finish turning fixture assembly; the finish turning inner hole clamp assembly described with reference to fig. 2 comprises a jacket 1 and an end cover 3; the jacket 1 consists of a machine tool clamping section, a workpiece placing section and a workpiece locking section; the machine tool clamping section is arranged on the front side where a workpiece is placed; a workpiece locking section is arranged on the rear side where the workpiece is placed; the end cover 3 consists of a clamping sleeve locking end and a workpiece positioning end, wherein 4 process holes are arranged on the outer contour of the end cover at equal intervals and used for locking the end cover.
Refer to fig. 6; the semi-finish turning outer circle clamp assembly comprises a finish turning mandrel 4, a finish turning baffle ring 5 and a nut; the finish turning mandrel consists of a machine tool clamping section, a workpiece placing section and a workpiece locking section; the machine tool clamping section is arranged on the front side where the workpiece is placed; a workpiece locking section is arranged on the rear side where the workpiece is placed; the finish turning baffle ring 5 is provided with an inner hole; the inner hole is matched with the finish turning mandrel 4, and the size of the outer circle is matched with a workpiece to be processed.
Refer to fig. 9; the fine grinding excircle clamp assembly comprises a fine grinding mandrel 7, a fine grinding baffle ring 8 and a nut 9; the fine grinding mandrel 7 consists of a jacking end, a workpiece placing section and a workpiece locking section; the workpiece placing section is arranged between the jacking end and the workpiece locking section; the fine grinding baffle ring 8 is provided with an inner hole, the inner hole is matched with the fine grinding mandrel 7, and the size of the excircle is matched with a workpiece to be processed.
A use method of a finish turning inner hole clamp assembly in a special clamp for machining a copper sleeve part comprises the following steps: one end of the jacket is clamped by the three-jaw chuck, a workpiece is placed into one end of the cavity, and the workpiece is in clearance fit with the pipe sleeve, so that the workpiece is convenient to clamp, the internal stress can be eliminated in the machining process, and the cylindricity of the workpiece can be well guaranteed. The axial size of the workpiece is slightly larger than that of the cavity of the pipe sleeve, the end cover is in threaded connection with the pipe sleeve, an auxiliary tool can be inserted into 4 process holes in the outer contour of the end cover to enable the end cover to be screwed or disassembled, the end cover is used for axially fixing and clamping the workpiece, and the circumferential movement of the workpiece is further fixed.
A use method of a semi-finish turning outer circle clamp assembly in a special clamp for machining a copper sleeve part comprises the following steps: the finish turning mandrel has the advantages that one end of the finish turning mandrel is clamped by the three-jaw chuck, a workpiece is sleeved into the finish turning mandrel, the workpiece is in clearance fit with the finish turning mandrel, the workpiece is convenient to clamp and is beneficial to eliminating internal stress in the machining process, and the cylindricity of the workpiece can be well guaranteed. The shaft shoulder and the finish turning baffle ring axially fix and clamp the workpiece, and further fix the circumferential motion of the workpiece. And the finish turning baffle ring is fixed by utilizing the threaded connection of the nut and the mandrel.
A use method of a clamp assembly for accurately grinding an excircle in a special clamp for processing a copper bush part comprises the following steps: the workpieces are sleeved at the two ends of the fine grinding mandrel, the two workpieces are processed at one time, the workpieces and the fine grinding mandrel are still in clearance fit, the workpieces are convenient to clamp, the internal stress can be eliminated in the processing process, and the processing precision and the cylindricity can be well guaranteed. The workpiece is axially fixed and clamped at both ends by the fine grinding baffle ring, and the circumferential movement of the workpiece is further fixed. And the fine grinding baffle ring is fixed by utilizing the threaded connection of the nut and the mandrel.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A special fixture for machining a copper sleeve part is characterized by comprising an inner hole finish turning fixture assembly, a semi-finish turning outer circle fixture assembly and an outer circle finish turning fixture assembly; the finish turning inner hole clamp assembly comprises a clamping sleeve (1) and an end cover (3); the jacket (1) consists of a machine tool clamping section, a workpiece placing section and a workpiece locking section; the machine tool clamping section is arranged on the front side where a workpiece is placed; a workpiece locking section is arranged on the rear side where the workpiece is placed; the end cover (3) is composed of a clamping sleeve locking end and a workpiece positioning end, wherein 4 process holes are arranged on the outer contour of the end cover at equal intervals and used for locking the end cover.
2. The special fixture for machining the copper sleeve part according to claim 1, wherein the semi-finish turning outer circle fixture assembly comprises a finish turning mandrel (4), a finish turning stop ring (5) and a nut; the finish turning mandrel consists of a machine tool clamping section, a workpiece placing section and a workpiece locking section; the machine tool clamping section is arranged on the front side where the workpiece is placed; a workpiece locking section is arranged on the rear side where the workpiece is placed; the finish turning baffle ring (5) is provided with an inner hole; the inner hole is matched with the finish turning mandrel (4), and the size of the outer circle is matched with a workpiece to be processed.
3. The special fixture for processing the copper sleeve part according to claim 1, wherein the fine grinding outer circle fixture assembly comprises a fine grinding mandrel (7), a fine grinding baffle ring (8) and a nut (9); the fine grinding mandrel (7) consists of a jacking end, a workpiece placing section and a workpiece locking section; the workpiece placing section is arranged between the jacking end and the workpiece locking section; the fine grinding baffle ring (8) is provided with an inner hole, the inner hole is matched with the fine grinding mandrel (7), and the size of the outer circle is matched with a workpiece to be processed.
4. The use method of the clamp assembly for finish turning of the inner hole in the special clamp for machining the copper sleeve part as claimed in any one of claims 1 to 3 is characterized in that one end of the clamping sleeve is clamped by a three-jaw chuck, a workpiece is placed at one end of the cavity, the workpiece is in clearance fit with the sleeve, the workpiece is convenient to clamp and is beneficial to eliminating internal stress in the machining process, and the cylindricity of the workpiece can be well guaranteed; the axial size of the workpiece is slightly larger than that of the cavity of the pipe sleeve, the end cover is in threaded connection with the pipe sleeve, an auxiliary tool can be inserted into 4 process holes in the outer contour of the end cover to enable the end cover to be screwed or disassembled, the end cover is used for axially fixing and clamping the workpiece, and the circumferential movement of the workpiece is further fixed.
5. The use method of the semi-finish turning outer circle clamp component of the special clamp for machining the copper sleeve part as claimed in any one of claims 1 to 3, wherein one end of the finish turning mandrel is clamped by a three-jaw chuck, a workpiece is sleeved in the finish turning mandrel, and the workpiece is in clearance fit with the finish turning mandrel, so that the workpiece is convenient to clamp, the internal stress is eliminated in the machining process, and the cylindricity of the workpiece can be well ensured; the shaft shoulder and the finish turning baffle ring axially fix and clamp the workpiece, and further fix the circumferential motion of the workpiece; and the finish turning baffle ring is fixed by utilizing the threaded connection of the nut and the mandrel.
6. The use method of the clamp assembly for finish turning the inner hole in the special clamp for machining the copper sleeve part as claimed in any one of claims 1 to 3 is characterized in that the workpieces are sleeved at two ends of the finish grinding mandrel, two workpieces are machined at one time, the workpieces and the finish grinding mandrel are still in clearance fit, the clamping of the workpieces is convenient, the internal stress can be eliminated in the machining process, and the machining precision and the cylindricity can be well guaranteed; the workpiece is axially fixed and clamped at two ends by the fine grinding baffle ring, and the circumferential motion of the workpiece is further fixed; and the fine grinding baffle ring is fixed by utilizing the threaded connection of the nut and the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110404499.2A CN113118801A (en) | 2021-04-15 | 2021-04-15 | Special fixture for copper bush part machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110404499.2A CN113118801A (en) | 2021-04-15 | 2021-04-15 | Special fixture for copper bush part machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113118801A true CN113118801A (en) | 2021-07-16 |
Family
ID=76776533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110404499.2A Pending CN113118801A (en) | 2021-04-15 | 2021-04-15 | Special fixture for copper bush part machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113118801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647850A (en) * | 2022-09-20 | 2023-01-31 | 江苏立一新材料科技有限公司 | Draw gear is used in processing of bearing copper sheathing |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3302823A1 (en) * | 1983-01-28 | 1984-08-02 | Hauni-Werke Körber & Co KG, 2050 Hamburg | Process and apparatus for the clamping of a hollow cylindrical workpiece |
| CN203650238U (en) * | 2013-10-16 | 2014-06-18 | 凯盛重工有限公司 | Grinding thin-walled sleeve tooling |
| CN105150000A (en) * | 2015-07-21 | 2015-12-16 | 济南重工股份有限公司 | Machining tool and method for large thin-walled conical sleeve |
| CN105710392A (en) * | 2014-12-04 | 2016-06-29 | 苏州道森阀门有限公司 | Machining process for annular thin-wall part and tool thereof |
| CN106514443A (en) * | 2016-12-14 | 2017-03-22 | 济南第机床有限公司 | Special mandrel tool for accurately grinding excircle of main shaft of high-precision numerical control machine tool |
| CN106624010A (en) * | 2016-12-02 | 2017-05-10 | 江西昌河航空工业有限公司 | Auxiliary tool for thin and long thin-wall tube type workpiece |
| CN107363600A (en) * | 2017-08-28 | 2017-11-21 | 江苏飞船股份有限公司 | Bevel gear excircle finish turning fixture |
| CN208528828U (en) * | 2018-07-13 | 2019-02-22 | 内蒙古五湖泵业有限公司 | One kind is for grinding machining mould before the plating of diving generator rotor axis axle sleeve |
| CN110394604A (en) * | 2019-07-31 | 2019-11-01 | 成都航空职业技术学院 | A kind of processing method and processing unit (plant) of cobalt base superalloy Thin-walled part |
-
2021
- 2021-04-15 CN CN202110404499.2A patent/CN113118801A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3302823A1 (en) * | 1983-01-28 | 1984-08-02 | Hauni-Werke Körber & Co KG, 2050 Hamburg | Process and apparatus for the clamping of a hollow cylindrical workpiece |
| CN203650238U (en) * | 2013-10-16 | 2014-06-18 | 凯盛重工有限公司 | Grinding thin-walled sleeve tooling |
| CN105710392A (en) * | 2014-12-04 | 2016-06-29 | 苏州道森阀门有限公司 | Machining process for annular thin-wall part and tool thereof |
| CN105150000A (en) * | 2015-07-21 | 2015-12-16 | 济南重工股份有限公司 | Machining tool and method for large thin-walled conical sleeve |
| CN106624010A (en) * | 2016-12-02 | 2017-05-10 | 江西昌河航空工业有限公司 | Auxiliary tool for thin and long thin-wall tube type workpiece |
| CN106514443A (en) * | 2016-12-14 | 2017-03-22 | 济南第机床有限公司 | Special mandrel tool for accurately grinding excircle of main shaft of high-precision numerical control machine tool |
| CN107363600A (en) * | 2017-08-28 | 2017-11-21 | 江苏飞船股份有限公司 | Bevel gear excircle finish turning fixture |
| CN208528828U (en) * | 2018-07-13 | 2019-02-22 | 内蒙古五湖泵业有限公司 | One kind is for grinding machining mould before the plating of diving generator rotor axis axle sleeve |
| CN110394604A (en) * | 2019-07-31 | 2019-11-01 | 成都航空职业技术学院 | A kind of processing method and processing unit (plant) of cobalt base superalloy Thin-walled part |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647850A (en) * | 2022-09-20 | 2023-01-31 | 江苏立一新材料科技有限公司 | Draw gear is used in processing of bearing copper sheathing |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210716 |
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| RJ01 | Rejection of invention patent application after publication |