CN103949712B - The processing method of form and position tolerance is ensured in female keyway slotting process - Google Patents
The processing method of form and position tolerance is ensured in female keyway slotting process Download PDFInfo
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- CN103949712B CN103949712B CN201410172039.1A CN201410172039A CN103949712B CN 103949712 B CN103949712 B CN 103949712B CN 201410172039 A CN201410172039 A CN 201410172039A CN 103949712 B CN103949712 B CN 103949712B
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Abstract
The invention discloses the processing method ensureing form and position tolerance in a kind of female keyway slotting process, step comprises: step 1, selected suitable technique block positioning; Step 2, determine workpiece first female keyway position and process; Use dial gauge centering technique block initial baseline face total length, then the longitudinal axis position immediately below workpiece is the zero reference of workpiece first female keyway center line anglec of rotation, starts processing work first female keyway; Step 3, determine the next female keyway position of workpiece and process, the like, complete the processing of all female keyway.Method of the present invention, solves the problem of position degree between different azimuth multiple keyway, can meet the shaping of workpiece on different slotting machine of different size.
Description
Technical field
The invention belongs to machining manufacturing technology field, relate to the processing method ensureing form and position tolerance in a kind of female keyway slotting process.
Background technology
The parts such as wheel hub are often distributed in same circumference, multiple keyways on different bus, the most common with 90 °, 120 °, 180 ° distributions, prior art adopts the mode of artificial line to position, keyway processed by machine tool, be difficult to ensure the positional precision between each keyway, inefficiency, effectively cannot ensure product quality.Because the error of manually ruling is too large, be difficult to when slotting keyway ensure Geometrical Tolerance Principle between keyway, become the technical problem being badly in need of overcoming.
Summary of the invention
The invention provides the processing method ensureing form and position tolerance in a kind of female keyway slotting process, solve prior art when processing the multiple keyway on the different bus of the same circumference of wheel hub, the method of artificial line is adopted to be difficult to ensure the positional precision between each keyway, ineffective problem.
The technical solution used in the present invention is, ensures the processing method of form and position tolerance, specifically implement according to following steps in a kind of female keyway slotting process:
Step 1, selected suitable technique block positioning;
Step 2, determine workpiece first female keyway position and process;
Use dial gauge centering technique block initial baseline face total length, then the longitudinal axis position immediately below workpiece is the zero reference of workpiece first female keyway center line anglec of rotation, starts processing work first female keyway;
Step 3, determine the next female keyway position of workpiece and process,
The like, complete the processing of all female keyway.
The invention has the beneficial effects as follows: by simple, practical Reference Transforming instrument, solve the problem of position degree between different azimuth multiple keyway, the shaping of workpiece on different slotting machine of different size can be met, and can adjust the method according to part type, carry out expansion application.The design of part that the method uses is simple, easy to operate, quick, and accuracy guarantee method directly, reliably, manufacture process meets HSE requirement, and the processing for female keyway provides a kind of New methods in working.
Accompanying drawing explanation
Fig. 1 implements 90 ° of keyway processing work schematic diagrams in the inventive method;
Fig. 2 implements 90 ° of keyway processing work schematic diagrams two in the inventive method;
Fig. 3 implements 120 ° of keyway processing work schematic diagrams in the inventive method;
Fig. 4 implements 120 ° of keyway processing work schematic diagrams two in the inventive method;
Fig. 5 implements 120 ° of keyway processing work schematic diagrams three in the inventive method;
Fig. 6 implements 90 ° of keyway technique block structural diagrams in the inventive method;
Fig. 7 implements 90 ° of keyway technique block structural diagrams two in the inventive method;
Fig. 8 implements 180 ° of keyway technique block structural diagrams in the inventive method;
Fig. 9 implements 180 ° of keyway technique block structural diagrams two in the inventive method;
Figure 10 implements 120 ° of keyway technique block structural diagrams in the inventive method;
Figure 11 implements 120 ° of keyway technique block structural diagrams two in the inventive method.
In figure, 1. technique block, 2. workpiece, 3. workbench, 4. bolt, 5. nut, 6. dial gauge.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The processing method of form and position tolerance is ensured in female keyway slotting process of the present invention, depend on a set of process unit, the main body of this device is a technique block 1, the center of technique block 1 is provided with through hole, is provided with bolt 4 and nut 5 and workpiece 2 thereof and achieves a fixed connection in the through hole of technique block 1.
The profile of technique block 1 requires to arrange according to the relative position degree between workpiece keyway, technique block 1 also correspondence is divided into three kinds of patterns: in 90 ° or 180 ° keyway, the shape fabricating of technique block 1 is square or cuboid, namely as the square technique block in Fig. 6, Fig. 7, or as the cuboid technique block in Fig. 8, Fig. 9; For the keyway of one-tenth 120 °, the shape fabricating of technique block 1 is the positive triangle body having 60 ° or 120 ° angles, as the positive triangle body technique block in Figure 10, Figure 11;
The surface processing accuracy of all technique blocks 1 is 0.8 standard specification; According to workpiece size, size of finished face and workpiece accuracy requirement, determine the length dimension of technique block centering datum level, centering datum level is generally not less than 150mm.
With reference to Fig. 1-Fig. 5, ensure the processing method of form and position tolerance in female keyway slotting process of the present invention, specifically implement according to following steps:
Step 1, selected suitable technique block positioning
Needing the distribution angle of machining hole internal keyway quantity according to workpiece 2, overlook workpiece 2, with reference to Fig. 1, Fig. 2, when rotating distribution machining hole internal keyway according to 90 °, using square technique block to position; With reference to Fig. 3, Fig. 4, Fig. 5, when rotating distribution machining hole internal keyway according to 120 °, 240 °, positive triangle body technique block is used to position;
Workpiece 2 is lain on the workbench 3 of slotting machine, centering workpiece 2 centre of gyration overlaps with workbench 3 centre of gyration, positive triangle body technique block or square technique block are arranged on the right side of workpiece 2 transverse axis, by bolt 4 and nut 5, technique block 1 are fixedly mounted on workbench 3; Or, if workpiece 2 size too high or too large time, then technique block 1 is fixed on workpiece 2 upper surface correct position, then workpiece 2 is fixed on workbench 3;
Step 2, determine workpiece 2 first female keyway positions and process
With reference to Fig. 1, Fig. 3, use dial gauge 6 centering technique block 1 initial baseline face total length, then the longitudinal axis position immediately below workpiece 2 is the zero reference of workpiece 2 first female keyway center line anglecs of rotation, starts processing work 2 first female keyway;
Step 3, determine the next female keyway position of workpiece 2 and process
With reference to Fig. 2, Fig. 4, after workpiece 2 first female keyway process, technique block 1 position is motionless, rotary table 3, workpiece 2 together rotates with workbench 3, centering is carried out to technique block 1 second datum level (datum level adjacent with first datum level), by the angle changing value in Controlling Technology block 1 second datum level and initial baseline face, ensure the precision of the center line angle position between the next female keyway of workpiece 2 and previous female keyway, start processing work 2 second female keyway;
That is, beat with postrotational centering datum level before being rotated by the angle tolerance of datum level before and after Controlling Technology block 1 and measuring, accurately control the anglec of rotation of workpiece 2, ensure the angle position between the next female keyway of workpiece 2 and previous female keyway, require to control workpiece 2 key slot center line angle degree or integral multiple identical with the angle of technique block 1 centering datum level.
The like, complete the processing of all female keyway.
When processing each female keyway, according to workpiece accuracy requirement, technique block 1 datum level total length jitter values must be less than the form and position tolerance value of workpiece.
Claims (5)
1. ensure a processing method for form and position tolerance in female keyway slotting process, it is characterized in that, specifically implement according to following steps:
Step 1, selected suitable technique block (1) positioning,
The selection standard of described technique block (1) needs the distribution angle of machining hole internal keyway quantity, when rotating distribution machining hole internal keyway according to 90 °, uses square technique block to position; When rotating distribution machining hole internal keyway according to 120 °, 240 °, positive triangle body technique block is used to position;
Step 2, determine workpiece (2) first female keyway positions and process;
Use dial gauge (6) centering technique block (1) initial baseline face total length, longitudinal axis position then immediately below workpiece (2) is the zero reference of workpiece (2) first female keyway center line anglecs of rotation, starts processing work (2) first female keyway;
Step 3, determine the next female keyway position of workpiece (2) and process,
The like, complete the processing of all female keyway.
2. in female keyway slotting process according to claim 1, ensure the processing method of form and position tolerance, it is characterized in that, in step 1, described position fixing process is: lain in by workpiece (2) on the workbench (3) of slotting machine, centering workpiece (2) centre of gyration overlaps with workbench (3) centre of gyration, positive triangle body technique block or square technique block are arranged on the right side of workpiece (2) transverse axis, by bolt (4) and nut (5), technique block (1) are fixedly mounted on workbench (3).
3. in female keyway slotting process according to claim 1, ensure the processing method of form and position tolerance, it is characterized in that, in step 1, described position fixing process is: lain in by workpiece (2) on the workbench (3) of slotting machine, centering workpiece (2) centre of gyration overlaps with workbench (3) centre of gyration, workpiece (2) size too high or too large time, then technique block (1) is fixed on workpiece (2) upper surface correct position, then workpiece (2) is fixed on workbench (3).
4. in the female keyway slotting process according to Claims 2 or 3, ensure the processing method of form and position tolerance, it is characterized in that, in step 3, after workpiece (2) first female keyway process, technique block (1) position is motionless, rotary table (3), workpiece (2) together rotates with workbench (3), centering is carried out to technique block (1) second datum level, by the angle changing value in Controlling Technology block (1) second datum level and initial baseline face, ensure the precision of the center line angle position between workpiece (2) next female keyway and previous female keyway, start processing work (2) second female keyway.
5. in the female keyway slotting process according to Claims 2 or 3, ensure the processing method of form and position tolerance, it is characterized in that, in step 3, beat with postrotational centering datum level before being rotated by the angle tolerance of datum level before and after Controlling Technology block (1) and measuring, accurately control the anglec of rotation of workpiece (2), ensure the angle position between workpiece (2) next female keyway and previous female keyway, require to control workpiece (2) key slot center line angle degree or integral multiple identical with the angle of technique block (1) centering datum level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410172039.1A CN103949712B (en) | 2014-04-25 | 2014-04-25 | The processing method of form and position tolerance is ensured in female keyway slotting process |
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| CN201410172039.1A CN103949712B (en) | 2014-04-25 | 2014-04-25 | The processing method of form and position tolerance is ensured in female keyway slotting process |
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| CN103949712A CN103949712A (en) | 2014-07-30 |
| CN103949712B true CN103949712B (en) | 2016-04-13 |
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| CN201410172039.1A Expired - Fee Related CN103949712B (en) | 2014-04-25 | 2014-04-25 | The processing method of form and position tolerance is ensured in female keyway slotting process |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108067838B (en) * | 2017-10-31 | 2020-05-19 | 武汉船用机械有限责任公司 | Method for processing inner hole key groove |
| CN108581365B (en) * | 2018-06-26 | 2019-09-17 | 沈阳透平机械股份有限公司 | A kind of processing method of enclosed ternary slot welding impeller |
| CN110666449B (en) * | 2019-09-11 | 2021-04-13 | 西安北方光电科技防务有限公司 | Machining method for aluminum alloy virtual reference part |
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|---|---|---|---|---|
| US4778316A (en) * | 1987-04-01 | 1988-10-18 | Climax Portable Machine Tools, Inc. | Portable Keymill |
| CN201300341Y (en) * | 2008-11-20 | 2009-09-02 | 南阳二机石油装备(集团)有限公司 | 180-degrees symmetrical key groove milling frock of shaft part |
| CN102091818A (en) * | 2010-12-23 | 2011-06-15 | 成都飞机工业（集团）有限责任公司 | Slotting and machining method of high-precision internal keyways |
| CN102229004A (en) * | 2011-06-30 | 2011-11-02 | 日立泵制造（无锡）有限公司 | High-precision machining method of double symmetric key slots of water pump shafting component |
| CN102284734A (en) * | 2011-07-04 | 2011-12-21 | 宝鸡石油机械有限责任公司 | Method for processing key grooves of shaft |
| CN103607769A (en) * | 2013-10-28 | 2014-02-26 | 杭州电子科技大学 | Asynchronous positioning method based on mobile anchor node |
| CN103737088A (en) * | 2013-12-13 | 2014-04-23 | 陕西宝成航空仪表有限责任公司 | Precision processing method for symmetric key grooves on shaft |
-
2014
- 2014-04-25 CN CN201410172039.1A patent/CN103949712B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4778316A (en) * | 1987-04-01 | 1988-10-18 | Climax Portable Machine Tools, Inc. | Portable Keymill |
| CN201300341Y (en) * | 2008-11-20 | 2009-09-02 | 南阳二机石油装备(集团)有限公司 | 180-degrees symmetrical key groove milling frock of shaft part |
| CN102091818A (en) * | 2010-12-23 | 2011-06-15 | 成都飞机工业（集团）有限责任公司 | Slotting and machining method of high-precision internal keyways |
| CN102229004A (en) * | 2011-06-30 | 2011-11-02 | 日立泵制造（无锡）有限公司 | High-precision machining method of double symmetric key slots of water pump shafting component |
| CN102284734A (en) * | 2011-07-04 | 2011-12-21 | 宝鸡石油机械有限责任公司 | Method for processing key grooves of shaft |
| CN103607769A (en) * | 2013-10-28 | 2014-02-26 | 杭州电子科技大学 | Asynchronous positioning method based on mobile anchor node |
| CN103737088A (en) * | 2013-12-13 | 2014-04-23 | 陕西宝成航空仪表有限责任公司 | Precision processing method for symmetric key grooves on shaft |
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