CN114571352B - Honing cylindricity compensation mode - Google Patents
Honing cylindricity compensation mode Download PDFInfo
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- CN114571352B CN114571352B CN202210104691.4A CN202210104691A CN114571352B CN 114571352 B CN114571352 B CN 114571352B CN 202210104691 A CN202210104691 A CN 202210104691A CN 114571352 B CN114571352 B CN 114571352B
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- cylindricity
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- 238000003754 machining Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 10
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B24B33/00—Honing machines or devices; Accessories therefor
-
- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a honing cylindricity compensation mode, which comprises the following steps: s1, setting an ideal tolerance zone of workpiece cylindricity, an upper reversing automatic compensation limit, a lower reversing automatic compensation limit and a single compensation value; s2, machining a workpiece hole; s3, taking an upper section and a lower section of a workpiece hole, and solving a cylindricity difference value according to absolute values of difference values of the upper section diameter, the lower section diameter and the ideal zero tolerance diameter after hole machining; s4, comparing the relation between the cylindricity difference value and the twice ideal tolerance zone boundary, and updating the upper reversing position and the lower reversing position of the honing head according to the single compensation value; s5, judging whether the upper reversing position coordinates and the lower reversing position coordinates are positioned in an upper reversing automatic compensation limit and a lower reversing automatic compensation limit, and if yes, performing a step S6; otherwise, step S7 is carried out; s6, switching to a next machining position of a workpiece to be machined, and performing step S2; s7, stopping processing. The invention only compensates a single compensation value each time, and ensures that cylindricity is always closed to a set ideal interval.
Description
Technical Field
The invention relates to the field of cylindricity compensation, in particular to a honing cylindricity compensation mode.
Background
Before honing the workpieces in batches, the honing machine needs to determine a group of upper reversing positions and lower reversing positions capable of honing the qualified cylindricity through trial grinding of single workpieces and detection of cylindricity after grinding. Once the upper and lower reversing positions are determined, batch honing can be performed.
In batch honing, the upper and lower reversing position values are fixed except for manual modification. Thus, after a plurality of workpieces are continuously processed, the shapes of the grinding heads are changed due to uneven threshing of the grinding heads, and the cylindricity of the workpiece after honing deviates from a qualified range after the grinding heads are aged. To correct the cylindricity of the workpiece, the upper and lower reversing positions of the grinding head during honing must be manually adjusted.
There is a need for a honing cylindricity compensation way to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the problem that the cylindricity of a workpiece after honing deviates from a qualified range due to the fact that the shape of a grinding head changes after a plurality of workpieces are continuously machined when a current honing machine is used for honing the workpiece, and provides a honing cylindricity compensation mode which adopts automatic compensation of the up-down direction, so that the honing machine can automatically correct the cylindricity, the cylindricity of the workpiece after honing is always kept in the qualified range, and the problems are solved.
The invention provides a honing cylindricity compensation mode, which comprises the following steps:
s1, setting an ideal tolerance zone of workpiece cylindricity, an upper reversing automatic compensation limit, a lower reversing automatic compensation limit and a single compensation value;
s2, machining a workpiece hole of a workpiece to be machined by a honing head;
s3, taking an upper section and a lower section of a workpiece hole, and solving a cylindricity difference value according to absolute values of difference values of the upper section diameter, the lower section diameter and the ideal zero tolerance diameter after hole machining;
s4, comparing the relation between the cylindricity difference value and the twice ideal tolerance zone boundary, and updating the upper reversing position and the lower reversing position of the honing head according to the single compensation value;
s5, judging whether the upper reversing position coordinates and the lower reversing position coordinates are positioned in an upper reversing automatic compensation limit and a lower reversing automatic compensation limit, and if yes, performing a step S6; otherwise, step S7 is carried out;
s6, switching to a next machining position of a workpiece to be machined, and performing step S2;
s7, stopping processing.
The invention relates to a honing cylindricity compensation mode, which is used as an optimal mode, and a concrete method for setting an ideal tolerance zone of workpiece cylindricity in the step S1 comprises the following steps:
setting an ideal upper tolerance of workpiece cylindricity as B, setting an ideal lower tolerance of workpiece cylindricity as A, and setting an ideal qualified interval [ A, B ] of the workpiece.
The invention relates to a honing cylindricity compensation mode, which is used as an optimal mode, and the step S3 specifically comprises the following steps:
s31, taking the absolute value of the difference value between the diameter of the upper section and the ideal zero tolerance diameter after hole machining as D1; taking the absolute value of the difference between the section diameter of the lower section and the ideal zero tolerance diameter after the hole machining as D3;
s32, calculating a cylindricity difference C, wherein the formula is as follows:
C＝D3-D1。
the honing cylindricity compensation mode disclosed by the invention is used as an optimal mode, and the step S4 specifically comprises the following steps:
s41, judging whether C is smaller than or equal to 2A, if so, shifting down the single compensation value simultaneously by the upper reversing bit and the lower reversing bit, and carrying out step S5, otherwise, carrying out step S42;
s42, judging whether C is larger than or equal to 2B, if so, shifting up the single compensation value at the same time by the upper reversing bit and the lower reversing bit, and executing a step S5, otherwise, executing a step S43;
s43, the upper reversing bit and the lower reversing bit keep the current position.
If C <2A, the upper and lower reversing positions of the honing process are simultaneously subtracted by a single automatic compensation value, so that the upper and lower reversing positions of the honing process are integrally moved down by a single automatic compensation value; if C >2B, the upper and lower reversing positions of the honing process are added with a single automatic compensation value at the same time, so that the upper and lower reversing positions of the honing process are moved up by a single automatic compensation value; when the next hole is honed, the compensated up-down reversing position is used to make the cylindricity of the honed hole close to the set section.
The honing cylindricity compensation mode disclosed by the invention is used as an optimal mode, whether the upper reversing position coordinate and the lower reversing position coordinate in the step S5 are positioned in an upper reversing automatic compensation limit and a lower reversing automatic compensation limit or not is specifically as follows:
the coordinate value of the upper reversing bit is smaller than or equal to the upper reversing automatic compensation limit or the coordinate value of the lower reversing bit is larger than or equal to the lower reversing automatic compensation limit.
When continuously processing workpieces, the automatic compensation is carried out on the upper reversing position and the lower reversing position of the honing process through fixed frequency, each compensation is carried out again on the basis of the current actual upper reversing position and the lower reversing position after the last automatic compensation, and only one single automatic compensation value is compensated each time, so that the cylindricity of the honed holes is always close to a set ideal interval under the condition of no human intervention, the set ideal intervals [ A, B ] are always within a cylindricity qualified interval of the workpieces, and the cylindricity of the holes is always kept within a qualified range.
The invention has the following beneficial effects:
after three-section measurement is carried out on the workpiece, analysis and calculation are carried out on the data, so that the upper reversing position and the lower reversing position of honing are automatically compensated, the artificial adjustment step is omitted, and the honing machine can still ensure that the cylindricity of the honed workpiece is within a qualified range after a plurality of workpieces are continuously processed.
Drawings
Figure 1 is a schematic diagram of a honing cylindricity compensation mode.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
As shown in fig. 1, a honing cylindricity compensation method comprises the following steps:
s1, setting an ideal tolerance of workpiece cylindricity as B, setting an ideal lower tolerance of workpiece cylindricity as A, and setting an ideal qualified interval [ A, B ], an upper reversing automatic compensation limit, a lower reversing automatic compensation limit and a single compensation value of a workpiece;
s2, machining a workpiece hole of a workpiece to be machined by a honing head;
s3, taking the absolute value of the difference value between the diameter of the upper section and the ideal zero tolerance diameter after hole machining as D1; taking the absolute value of the difference between the section diameter of the lower section and the ideal zero tolerance diameter after the hole machining as D3;
s4, calculating a cylindricity difference C, wherein the formula is as follows:
C＝D3-D1；
s5, judging whether C is smaller than or equal to 2A, if so, shifting down the single compensation value simultaneously by the upper reversing bit and the lower reversing bit, and executing a step S8, otherwise, executing a step S6;
s6, judging whether C is larger than or equal to 2B, if so, shifting up the single compensation value at the same time by the upper reversing bit and the lower reversing bit, and executing a step S8, otherwise, executing a step S7;
s7, the upper reversing position and the lower reversing position keep the current position;
s8, judging whether the upper reversing position coordinates and the lower reversing position coordinates are positioned in an upper reversing automatic compensation limit and a lower reversing automatic compensation limit, and if yes, performing a step S9; otherwise, step S10 is carried out;
s9, switching to a next machining position of a workpiece to be machined, and performing step S2;
s10, stopping processing.
Whether the upper reversing position coordinate and the lower reversing position coordinate are positioned in the upper reversing automatic compensation limit and the lower reversing automatic compensation limit is specifically as follows:
the coordinate value of the upper commutation bit is smaller than or equal to the upper commutation automatic compensation limit or the coordinate value of the lower commutation bit is larger than or equal to the lower commutation automatic compensation limit.
The two parameters of the ideal upper tolerance B of the workpiece cylindricity and the ideal lower tolerance A of the workpiece cylindricity are used for setting ideal qualified intervals [ A, B ] of the workpiece, wherein the intervals are closed intervals and are certain to be within the qualified intervals of the workpiece cylindricity. A and B should be signed numbers, with a 1-digit significant digit following the decimal point, the units of value being "μm". The single automatic compensation amount is a value when the upper reversing position and the lower reversing position are compensated for a single time, and is a positive value, and the unit is mm.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (2)
1. A honing cylindricity compensation mode is characterized in that: the method comprises the following steps:
s1, setting an ideal tolerance zone of workpiece cylindricity, an upper reversing automatic compensation limit, a lower reversing automatic compensation limit and a single compensation value;
s2, machining a workpiece hole of a workpiece to be machined by a honing head;
s3, taking an upper section and a lower section of the workpiece hole, and solving a cylindricity difference value according to absolute values of difference values of the upper section diameter, the lower section diameter and the ideal zero tolerance diameter after hole machining;
s4, comparing the relation between the cylindricity difference value and the twice ideal tolerance zone boundary, and updating the upper reversing position and the lower reversing position of the honing head according to the single compensation value;
s5, judging whether the upper reversing position coordinates and the lower reversing position coordinates are positioned in an upper reversing automatic compensation limit and a lower reversing automatic compensation limit, and if yes, performing a step S6; otherwise, step S7 is carried out;
s6, switching to a next machining position of a workpiece to be machined, and performing step S2;
s7, stopping processing;
the step S4 specifically includes:
s41, judging whether C is smaller than or equal to 2A, if so, shifting down the single compensation value simultaneously by the upper reversing bit and the lower reversing bit, and carrying out step S5, otherwise, carrying out step S42;
s42, judging whether C is larger than or equal to 2B, if so, shifting up the single compensation value at the same time by the upper reversing bit and the lower reversing bit, and executing a step S5, otherwise, executing a step S43;
s43, the upper reversing position and the lower reversing position keep the current position;
the specific method for setting the ideal tolerance zone of the workpiece cylindricity in the step S1 comprises the following steps:
setting an ideal upper tolerance of workpiece cylindricity as B, setting an ideal lower tolerance of workpiece cylindricity as A, and setting an ideal qualified interval [ A, B ] of the workpiece;
the step S3 specifically includes:
s31, taking the absolute value of the difference value between the diameter of the upper section and the ideal zero tolerance diameter after hole machining as D1; taking the absolute value of the difference value between the diameter of the section of the lower section and the ideal zero tolerance diameter after the hole machining as D3;
s32, calculating a cylindricity difference C, wherein the formula is as follows:
C＝D3-D1。
2. a honing cylindricity compensation method according to claim 1, characterized in that:
the step S5 is specifically that whether the upper commutation bit coordinate and the lower commutation bit coordinate are located within the upper commutation automatic compensation limit and the lower commutation automatic compensation limit is as follows:
the coordinate value of the upper reversing bit is smaller than or equal to the upper reversing automatic compensation limit or the coordinate value of the lower reversing bit is larger than or equal to the lower reversing automatic compensation limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210104691.4A CN114571352B (en) | 2022-01-28 | 2022-01-28 | Honing cylindricity compensation mode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210104691.4A CN114571352B (en) | 2022-01-28 | 2022-01-28 | Honing cylindricity compensation mode |
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| CN114571352A CN114571352A (en) | 2022-06-03 |
| CN114571352B true CN114571352B (en) | 2024-02-23 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724217A (en) * | 2005-06-16 | 2006-01-25 | 上海交通大学 | On line testing method for precisely curve grinding based on pattern recognition |
| CN102914995A (en) * | 2012-07-10 | 2013-02-06 | 深圳市朗玛数控设备有限公司 | Tool wear automatic compensation method and system, and corresponding numerically-controlled machine tool machining equipment |
| CN103737477A (en) * | 2013-12-25 | 2014-04-23 | 四川富临集团成都机床有限责任公司 | Method and device for measuring and automatically repairing cylindricity error for numerical control honing machine |
| CN110160464A (en) * | 2019-06-06 | 2019-08-23 | 上海市计量测试技术研究院 | For measuring the device and its application method of inner hole cylindricity |
| CN112414265A (en) * | 2020-10-26 | 2021-02-26 | 东风汽车集团有限公司 | Engine aperture size measurement compensation calculation method, measurement compensation method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7371149B2 (en) * | 2004-09-07 | 2008-05-13 | Sunnen Products Company | Honing feed system having full control of feed force, rate, and position and method of operation of the same |
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- 2022-01-28 CN CN202210104691.4A patent/CN114571352B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724217A (en) * | 2005-06-16 | 2006-01-25 | 上海交通大学 | On line testing method for precisely curve grinding based on pattern recognition |
| CN102914995A (en) * | 2012-07-10 | 2013-02-06 | 深圳市朗玛数控设备有限公司 | Tool wear automatic compensation method and system, and corresponding numerically-controlled machine tool machining equipment |
| CN103737477A (en) * | 2013-12-25 | 2014-04-23 | 四川富临集团成都机床有限责任公司 | Method and device for measuring and automatically repairing cylindricity error for numerical control honing machine |
| CN110160464A (en) * | 2019-06-06 | 2019-08-23 | 上海市计量测试技术研究院 | For measuring the device and its application method of inner hole cylindricity |
| CN112414265A (en) * | 2020-10-26 | 2021-02-26 | 东风汽车集团有限公司 | Engine aperture size measurement compensation calculation method, measurement compensation method and device |
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