CN108007323B - Rudder shaft groove symmetry detection device and method for rudder shaft parts - Google Patents
Rudder shaft groove symmetry detection device and method for rudder shaft parts Download PDFInfo
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- CN108007323B CN108007323B CN201711227282.9A CN201711227282A CN108007323B CN 108007323 B CN108007323 B CN 108007323B CN 201711227282 A CN201711227282 A CN 201711227282A CN 108007323 B CN108007323 B CN 108007323B
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- rudder shaft
- gauge block
- dial indicator
- rudder
- contact
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0018—Measuring arrangements characterised by the use of mechanical techniques for measuring key-ways
Abstract
The invention provides a device and a method for detecting the symmetry degree of a rudder shaft groove of a rudder shaft part. The device is characterized in that a first gauge block, a second gauge block and a third gauge block are connected above a base in parallel through connecting screws; the dial indicator is adsorbed on the base by magnetic force and is arranged near the first measuring block, the second measuring block or the third measuring block according to requirements during measurement; the first gauge block, the second gauge block and the third gauge block are arranged for adapting to rudder shafts with different groove widths and can be detached. During measurement, one side surface in a rudder shaft groove of a rudder shaft part is tightly attached to the gauge block; the contact of the dial indicator is contacted with the conical surface of the rudder shaft, the rudder shaft is moved along the surface of the gauge block, and the maximum reading of the dial indicator is recorded; turning the rudder shaft to ensure that the other side surface in the rudder shaft groove is tightly attached to the gauge block; the contact of the dial indicator is contacted with the conical surface of the rudder shaft, the rudder shaft is moved along the surface of the gauge block, and the maximum reading of the dial indicator is recorded again; the absolute value of the difference between the readings of the two dial indicators is equal to the measured symmetry. The device has simple structure and good application effect. The method of the invention is easy to operate and has low cost.
Description
Technical Field
The invention belongs to a device for detecting the symmetry degree of a groove part, and particularly relates to a device and a method for detecting the symmetry degree of a rudder shaft groove of a rudder shaft part.
Background
The rudder shaft part is a key part in a missile weapon transmission assembly, and the machining precision of the rudder shaft part is directly related to the flight control precision of a missile weapon. Therefore, there is a very strict form and position dimensional accuracy requirement, which is mainly reflected in the symmetry requirement of the rudder shaft slot. As shown in fig. 1.
The rudder shaft groove processing process needs a plurality of procedures such as linear cutting rough machining, linear cutting finish machining, rough groove milling, finish groove milling and the like. In order to control the machining precision and accurately calculate the machining allowance, the symmetry degree of the rudder shaft groove needs to be measured after each procedure is machined. The traditional method needs a three-coordinate measuring machine for measurement, has high cost, occupies measuring equipment and seriously influences the production progress. Therefore, a simple but reliable symmetry detection apparatus is needed to perform the detection.
Disclosure of Invention
The invention aims to provide a simple device and a method for detecting the symmetry degree of a rudder shaft groove of a rudder shaft part.
The technical scheme for realizing the purpose of the invention is as follows: a device for detecting the symmetry degree of a rudder shaft groove of a rudder shaft part comprises a base, wherein a first measuring block, a second measuring block and a third measuring block are connected above the base in parallel through connecting screws; the dial indicator is adsorbed on the base by magnetic force and is arranged near the first measuring block, the second measuring block or the third measuring block according to requirements during measurement; the first gauge block, the second gauge block and the third gauge block are arranged for adapting to rudder shafts with different groove widths and can be detached.
According to the rudder shaft groove symmetry degree detection device for the rudder shaft parts, the contact height of the dial indicator can be adjusted, so that the contact contacts with the conical surfaces of the rudder shaft at different heights.
According to the rudder shaft groove symmetry degree detection device for the rudder shaft parts, the sizes of the first gauge block, the second gauge block and the third gauge block can be set to be corresponding according to the width of the rudder shaft groove.
The device for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part has the advantages that the planeness of the surfaces of the first gauge block, the second gauge block and the third gauge block is less than or equal to 0.01mm, the verticality is less than or equal to 0.01mm, and the verticality of the hole is less than or equal to 0.01 mm.
The device for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part has the advantages that the flatness of the surface of the base is less than or equal to 0.01mm, and the verticality of the hole is less than or equal to 0.01 mm.
The invention relates to a method for detecting the symmetry degree of a rudder shaft groove of a rudder shaft part, which comprises the following steps of:
step (a), during measurement, one side surface in a rudder shaft groove of a rudder shaft part is tightly attached to one of a gauge block I, a gauge block II or a gauge block III;
step (b), adjusting the position of a contact of the dial indicator on the base, enabling the contact of the dial indicator to contact the conical surface of the rudder shaft, moving the rudder shaft along the surface of the gauge block, and recording the maximum reading of the dial indicator;
turning the rudder shaft to enable the other side surface in the rudder shaft groove to be tightly attached to one of the first measuring block, the second measuring block or the third measuring block;
step (d), adjusting the position of a contact of the dial indicator on the base, enabling the contact of the dial indicator to contact the conical surface of the rudder shaft, moving the rudder shaft along the surface of the gauge block, and recording the maximum reading of the dial indicator again;
and (e) according to the definition of the symmetry degree of the rudder shaft slot, the absolute value of the reading difference value of the two dial indicators is equal to the measured symmetry degree, and therefore the measurement of the symmetry degree can be realized.
The method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft type part is characterized in that the symmetry degree of the rudder shaft groove is defined as twice of the absolute value of the deviation amount of the central plane of the rudder shaft groove relative to the reference axis.
The method for detecting the symmetry degree of the rudder shaft slot of the rudder shaft part adjusts the height of the contact of the dial indicator, repeats the steps (a) to (e), and averages the symmetry degree values measured at all the heights of the contact of the dial indicator, thereby obtaining the measured value of the symmetry degree.
According to the method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part, the first measuring block, the second measuring block and the third measuring block can be replaced according to the size of the rudder shaft; and can be replaced according to the wear condition.
According to the method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part, the position of the dial indicator on the base can be adjusted at will according to the size of the rudder shaft during measurement, and the dial indicator is adsorbed on the base by virtue of magnetic force.
The invention has the following effects: the device for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part, disclosed by the invention, has the advantages of simple structure and good application effect, effectively reduces the measurement cost and improves the processing efficiency. The rudder shaft part is a universal part of a missile weapon product, the symmetry degree is detected by the detection device by adopting the method, the operation is easy, the cost is low, and the method can be widely applied to the processing of the rudder shaft groove of the rudder shaft part.
Drawings
FIG. 1 is a schematic structural diagram of a rudder shaft and a rudder shaft groove;
FIG. 2 is a schematic view of a rudder shaft slot symmetry detecting device for rudder shaft parts according to the present invention;
FIG. 3 is a schematic view of the detection device of the present invention;
in the figure: 1-dial indicator; 2-a base; 3-measuring a first block; 4-measuring a second block; 5-measuring block III; 6-connecting screws; 7-rudder shaft slot; 8-rudder shaft.
Detailed Description
The device and the method for detecting the symmetry of the rudder shaft slots of the rudder shaft parts according to the present invention are further described with reference to the accompanying drawings and the specific embodiments.
Example 1
The structure of the rudder shaft groove of the rudder shaft part is shown in figure 1.
As shown in fig. 2, the rudder shaft slot symmetry degree detection device for rudder shaft parts comprises a base 2, wherein a first gauge block 3, a second gauge block 4 and a third gauge block 5 are connected above the base 2 in parallel through connecting screws 6; the dial indicator 1 is adsorbed on the base 2 by magnetic force and is arranged near the first measuring block 3, the second measuring block 4 or the third measuring block 5 according to the requirement during measurement; the gauge block I3, the gauge block II 4 and the gauge block III 5 are arranged for adapting to the rudder shafts 8 with different groove widths and can be detached.
The height of the contact of the dial indicator 1 can be adjusted, so that the contact is in contact with the conical surfaces of the rudder shafts 8 at different heights.
The sizes of the first gauge block 3, the second gauge block 4 and the third gauge block 5 can be set to be corresponding to the width of the rudder shaft slot 7.
The flatness of the surfaces of the gauge block I3, the gauge block II 4 and the gauge block III 5 is less than or equal to 0.01mm, the verticality is less than or equal to 0.01mm, and the verticality of the hole is less than or equal to 0.01 mm.
The flatness of the surface of the base is less than or equal to 0.01mm, and the verticality of the hole is less than or equal to 0.01 mm.
Example 2
As shown in fig. 2, the method for detecting the symmetry of the rudder shaft groove of the rudder shaft part using the device for detecting the symmetry of the rudder shaft groove of the rudder shaft part according to embodiment 1 includes the following steps:
step (a), during measurement, enabling one side surface A in a rudder shaft groove 7 of a rudder shaft part to be tightly attached to one of a first gauge block 3, a second gauge block 4 or a third gauge block 5;
step (b), adjusting the position of a contact of the dial indicator 1 on the base 2, enabling the contact of the dial indicator 1 to contact the conical surface of the rudder shaft 8, moving the rudder shaft 8 along the surface of the gauge block, and recording the maximum reading of the dial indicator 1;
turning the rudder shaft 8 to enable the other side surface B in the rudder shaft groove 7 to be tightly attached to one of the gauge block I3, the gauge block II 4 or the gauge block III 5;
step (d), adjusting the position of a contact of the dial indicator 1 on the base 2, enabling the contact of the dial indicator 1 to contact the conical surface of the rudder shaft 8, moving the rudder shaft 8 along the surface of the gauge block, and recording the maximum reading of the dial indicator 1 again;
and (e) according to the definition of the symmetry degree of the rudder shaft slot, the absolute value of the reading difference value of the two dial indicators 1 is equal to the measured symmetry degree, so that the measurement of the symmetry degree can be realized.
Example 3
As shown in fig. 2, the method for detecting the symmetry of the rudder shaft groove of the rudder shaft part using the device for detecting the symmetry of the rudder shaft groove of the rudder shaft part according to embodiment 1 includes the following steps:
step (a), during measurement, enabling one side surface A in a rudder shaft groove 7 of a rudder shaft part to be tightly attached to one of a first gauge block 3, a second gauge block 4 or a third gauge block 5;
step (b), adjusting the position of a contact of the dial indicator 1 on the base 2, enabling the contact of the dial indicator 1 to contact the conical surface of the rudder shaft 8, moving the rudder shaft 8 along the surface of the gauge block, and recording the maximum reading of the dial indicator 1;
turning the rudder shaft 8 to enable the other side surface B in the rudder shaft groove 7 to be tightly attached to one of the gauge block I3, the gauge block II 4 or the gauge block III 5;
step (d), adjusting the position of a contact of the dial indicator 1 on the base 2, enabling the contact of the dial indicator 1 to contact the conical surface of the rudder shaft 8, moving the rudder shaft 8 along the surface of the gauge block, and recording the maximum reading of the dial indicator 1 again;
and (e) according to the definition of the symmetry degree of the rudder shaft slot, the absolute value of the reading difference value of the two dial indicators 1 is equal to the measured symmetry degree, so that the measurement of the symmetry degree can be realized.
And (f) adjusting the height of the contact of the dial indicator 1, repeating the steps (a) to (e), and averaging the symmetry values measured at all the heights of the contact of the dial indicator 1 to obtain the measured value of the symmetry.
The symmetry degree of the rudder shaft groove is defined as twice of the absolute value of the deviation value of the central plane of the rudder shaft groove relative to the reference axis.
The gauge block I3, the gauge block II 4 and the gauge block III 5 can be replaced according to the size of the rudder shaft 8; and can be replaced according to the wear condition.
The dial indicator 1 can be adjusted at will on the base 2 according to the size of the rudder shaft 8 during measurement, and is adsorbed on the base 2 by magnetic force.
Claims (9)
1. The method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part is characterized by comprising the following steps of: the method adopts a rudder shaft groove symmetry degree detection device for rudder shaft parts, which comprises a base (2), wherein a first gauge block (3), a second gauge block (4) and a third gauge block (5) are connected above the base (2) in parallel through connecting screws (6); the dial indicator (1) is adsorbed on the base (2) by magnetic force and is arranged near the first gauge block (3), the second gauge block (4) or the third gauge block (5) according to the requirement during measurement; the first gauge block (3), the second gauge block (4) and the third gauge block (5) are arranged for adapting to rudder shafts (8) with different groove widths and can be detached;
the method comprises the following steps:
step (a), during measurement, enabling one side surface (A) in a rudder shaft groove (7) of a rudder shaft part to be tightly attached to one of a first gauge block (3), a second gauge block (4) or a third gauge block (5);
step (b), adjusting the position of a contact of the dial indicator (1) on the base (2), enabling the contact of the dial indicator (1) to contact the conical surface of the rudder shaft (8), moving the rudder shaft (8) along the surface of the gauge block, and recording the maximum reading of the dial indicator (1);
turning the rudder shaft (8) to enable the other side surface (B) in the rudder shaft groove (7) to be tightly attached to one of the first gauge block (3), the second gauge block (4) or the third gauge block (5);
step (d), adjusting the position of a contact of the dial indicator (1) on the base (2), enabling the contact of the dial indicator (1) to contact the conical surface of the rudder shaft (8), moving the rudder shaft (8) along the surface of the gauge block, and recording the maximum reading of the dial indicator (1) again;
and (e) according to the definition of the symmetry degree of the rudder shaft slot, the absolute value of the reading difference value of the two dial indicators (1) is equal to the measured symmetry degree, so that the measurement of the symmetry degree can be realized.
2. The method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part according to claim 1, wherein the method comprises the following steps: the symmetry degree of the rudder shaft groove is defined as twice of the absolute value of the deviation value of the central plane of the rudder shaft groove relative to the reference axis.
3. The method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part according to claim 1, wherein the method comprises the following steps: and (4) adjusting the height of a contact of the dial indicator (1), repeating the steps (a) to (e), and averaging the symmetry values measured at each height of the contact of the dial indicator (1) to obtain the measured value of the symmetry.
4. The method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part according to claim 1, wherein the method comprises the following steps: the gauge block I (3), the gauge block II (4) and the gauge block III (5) are replaced according to the size of the rudder shaft (8); or replaced according to the wear condition.
5. The method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part according to claim 1, wherein the method comprises the following steps: the position of the dial indicator (1) on the base (2) can be adjusted at will according to the size of the rudder shaft (8) during measurement, and the dial indicator is adsorbed on the base (2) by virtue of magnetic force.
6. The method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part according to claim 1, wherein the method comprises the following steps: the height of the contact of the dial indicator (1) can be adjusted, so that the contact can be contacted with the conical surfaces of the rudder shafts (8) at different heights.
7. The method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part according to claim 1, wherein the method comprises the following steps: the sizes of the first gauge block (3), the second gauge block (4) and the third gauge block (5) are set to be corresponding to the width of the rudder shaft slot (7).
8. The method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part according to claim 1, wherein the method comprises the following steps: the flatness of the surfaces of the gauge block I (3), the gauge block II (4) and the gauge block III (5) is less than or equal to 0.01mm, the verticality is less than or equal to 0.01mm, and the verticality of the hole is less than or equal to 0.01 mm.
9. The method for detecting the symmetry degree of the rudder shaft groove of the rudder shaft part according to claim 1, wherein the method comprises the following steps: the flatness of the surface of the base is less than or equal to 0.01mm, and the verticality of the hole is less than or equal to 0.01 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711227282.9A CN108007323B (en) | 2017-11-29 | 2017-11-29 | Rudder shaft groove symmetry detection device and method for rudder shaft parts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711227282.9A CN108007323B (en) | 2017-11-29 | 2017-11-29 | Rudder shaft groove symmetry detection device and method for rudder shaft parts |
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| CN108007323A CN108007323A (en) | 2018-05-08 |
| CN108007323B true CN108007323B (en) | 2020-06-19 |
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| CN112484686A (en) * | 2020-12-16 | 2021-03-12 | 鞍钢重型机械有限责任公司 | Method for detecting symmetry degree of shaft part flat head |
| CN112964158B (en) * | 2021-02-09 | 2022-11-08 | 中国航发哈尔滨东安发动机有限公司 | Parallel measurement tool and measurement method for rotary oil absorption mechanism |
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| CN201680809U (en) * | 2010-03-19 | 2010-12-22 | 上海电气集团上海电机厂有限公司 | Device for measuring symmetry of rotary shaft key slot |
| CN104019724B (en) * | 2014-06-13 | 2018-12-21 | 宁夏百畅万通矿山机械有限公司 | Combined measuring tool |
| CN206113810U (en) * | 2016-08-29 | 2017-04-19 | 李平 | U type channel -section steel groove width and thick measuring tool of leg |
| CN206019555U (en) * | 2016-08-31 | 2017-03-15 | 昆山劲达泰机械制造有限公司 | Teeth groove symmetry measures cubing |
| CN206656664U (en) * | 2016-12-14 | 2017-11-21 | 常州苏特轴承制造有限公司 | It is a kind of to be used to detect well width and the monitor station of position in retainer |
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