CN113418450B - Method and tool for detecting position of special-surface threaded hole of primary conical rubber spring - Google Patents
Method and tool for detecting position of special-surface threaded hole of primary conical rubber spring Download PDFInfo
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- CN113418450B CN113418450B CN202110805195.7A CN202110805195A CN113418450B CN 113418450 B CN113418450 B CN 113418450B CN 202110805195 A CN202110805195 A CN 202110805195A CN 113418450 B CN113418450 B CN 113418450B
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- threaded hole
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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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
- G01B5/0025—Measuring of vehicle parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a method and a tool for detecting the position degree of a threaded hole on the different surface of a tapered rubber spring, wherein a single-line laser lamp is arranged on a mandrel, a qualified judgment score line is engraved below the rubber spring, the installation position of the light ray of the unidirectional laser lamp is adjusted to correspond to the qualified judgment score line, and when the position degree deviation of an upper positioning threaded hole and a lower positioning threaded hole is within a qualified range, the light ray of the unidirectional laser lamp falls in the qualified judgment score line. The detection tool comprises an upper detection body placed on the mandrel and a lower positioning base placed under the rubber spring, the unidirectional laser lamp is fixed on the upper detection body, and the qualified judgment score line is carved on the lower positioning base. The invention utilizes the characteristics of the single-wire laser lamp, such as instant use, accurate positioning, high efficiency, light weight and low price, and is matched with the lower positioning base to realize efficient and simple operation, thereby meeting the requirement of accurate measurement and having great application value for measuring the position of the different surface holes on the structure of the first-line conical rubber spring.
Description
Technical Field
The invention relates to the technical field of rubber spring detection, in particular to a method and a tool for detecting the position of a threaded hole on the different surfaces of a primary conical rubber spring.
Background
The metal rubber conical composite spring is widely used on railway vehicles and is an integral component formed by bonding metal and rubber laminates, and the product is used as an auxiliary spring of an air spring and plays a main bearing role when the air spring is airless so as to meet the running requirement of the vehicle.
As shown in fig. 1, a mandrel 1 is arranged at the upper end of the conical rubber spring, a rubber layer 2 is arranged at the lower end of the conical rubber spring, mounting holes are respectively formed in the upper end face of the mandrel 1 and the lower end face of the rubber layer 2, and the mounting holes are respectively an upper positioning threaded hole 11 formed in the mandrel and a lower positioning threaded hole 21 formed in the rubber layer for mounting and fixing.
A series of conical rubber springs is used for a series of suspension systems of rolling stock, mainly for vertical elastic support and for transmitting longitudinal traction or braking loads and transverse guiding. The load of the product varies from empty to the maximum impact load, and is the main primary load bearing component. The primary conical rubber spring is used in a primary suspension system of a rolling stock, and the problem that the product cannot be installed and used due to the deviation of the position degrees of the upper positioning threaded hole and the lower positioning threaded hole of the product often exists, so that serious economic loss is caused for companies. Therefore, the detection of the position of the threaded hole on the opposite surface of the conical rubber spring is an important link related to the quality of the product. According to the experience summary of the technical staff, when the deviation of the positions of the upper positioning threaded hole and the lower positioning threaded hole is within +/-2 degrees, the product is qualified.
At present, two general modes are used for detecting the position degree of the threaded hole on the opposite side of the first-line conical rubber spring, one mode is to use a three-coordinate machine for final product detection, equipment used for three-coordinate measurement is expensive, the equipment needs to be stored in a constant temperature and humidity environment, the detection speed is low, the technical requirements on detection personnel are high, and the detection is very difficult to be used for normalized detection in workshop production.
The other method is to use special checking tool to control the final link, because the special checking tool is heavy, the labor intensity of the person who carries out the detection is high, the detection process is complicated, the method is not suitable for process detection, and the method is only suitable for final product detection. However, the production process of the product is complicated, the working procedures are more, the construction period is long, and a large amount of economic loss is generated by the time of final inspection to find quality problems. This does not provide substantial benefits to quality control of the product and to reduce unnecessary quality consumption problems. In order to accelerate the detection speed and meet the production requirements, it is highly desirable to design efficient detection tools and effective methods for process quality control.
Disclosure of Invention
The method is suitable for being used in the production process of products, can rapidly and accurately detect the position of the screw hole on the opposite side of the first-line conical rubber spring, and solves the technical problems that three-coordinate detection is adopted, the operation is complex, the detection time is long, the cost is high, and the existing special detection tool is not suitable for process detection.
A method for detecting the position of a threaded hole on the different surface of a conical rubber spring includes such steps as installing a single-line laser lamp on a central axle, carving a qualified judging line under the rubber spring, regulating the position of the light of the single-line laser lamp to correspond to the qualified judging line, and when the position deviation of the upper and lower locating threaded holes is in a qualified range, the light of the single-line laser lamp falls in the qualified judging line.
The invention uses the unidirectional characteristic of the single-line laser lamp light, makes the unidirectional laser lamp irradiate from the upper end surface of the first series of conical rubber springs to the lower end surface of the first series of conical rubber springs, cuts the qualification judgment dividing line under the rubber springs, and judges whether the product is qualified or not by observing the light of the unidirectional laser lamp falling in the qualification judgment dividing line. The operation is convenient, quick and visual, and only the unidirectional laser lamp is required to be turned on; the unidirectional laser lamp is used, and the detection is accurate.
The invention also provides a tool for realizing the method for detecting the position of the threaded hole on the different surface of the tapered rubber spring, which comprises an upper detection body arranged on the mandrel and a lower positioning base arranged under the rubber spring, wherein the unidirectional laser lamp is fixed on the upper detection body, and the qualification judging scribing is carved on the lower positioning base.
The detection tool is provided with an upper detection body for installing a single-line laser lamp and a lower positioning base for engraving a qualified judgment score line.
Further, a first locating pin for locating the upper detecting body is also fixed on the upper detecting body, and when in detection, the first locating pin is placed in an upper locating threaded hole on the mandrel, and the first locating pin is matched with the size of the upper locating threaded hole.
Further, a second positioning pin for positioning the lower positioning base is fixed on the lower positioning base, and during detection, the second positioning pin is placed in a lower positioning threaded hole on the rubber spring and is matched with the lower positioning threaded hole in size.
Still further, the qualification score line: and taking a connecting line from the center of the second locating pin to the center of the lower locating base as a middle line, and respectively shifting 0-2 degrees to two sides of the middle line.
Further, the number of the qualified judging score lines is equal to the number of the positioning pins II.
Further, the number of the single-line laser lamps is equal to the number of the qualified judging score lines; and the position of the light ray of the single-wire laser lamp on the upper detection body corresponds to the position of the middle line of the qualified judging score line.
The invention has the following beneficial effects:
the technical scheme provided by the tool and the method for detecting the position of the different-surface threaded hole of the primary conical rubber spring is that the single-wire laser lamp can be used immediately after being opened, and the tool and the method have the characteristics of high efficiency, light weight and low cost, are matched with the lower positioning base, realize efficient and simple operation, can meet the requirement of accurate measurement, and have great application value for measuring the position of the different-surface threaded hole on the primary conical rubber spring structure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of a structure of a series of conical rubber springs.
FIG. 2 is a schematic diagram of the operation of a tool for testing the position of the threaded hole on the different surface of a conical rubber spring.
FIG. 3 is a schematic top view of the upper test body.
FIG. 4 is a schematic diagram of the upper test body in a left view.
Fig. 5 is a schematic top view of the lower positioning base.
Fig. 6 is a left side view schematic of the lower positioning base.
1 is a mandrel, 11 is an upper positioning threaded hole, 2 is a rubber layer, 21 is a lower positioning threaded hole, 3 is an upper detection body, 31 is a unidirectional laser lamp, 32 is a positioning pin I, 4 is a lower positioning base, 41 is a qualification judgment line, 42 is a positioning pin II, 43 is a middle line, 5 is a light ray of the unidirectional laser lamp, and 6 is unidirectional indication of the unidirectional laser lamp.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
Example 1
The utility model provides a first line conical rubber spring different face screw hole position degree detects instrument, is shown in fig. 2, and including the upper detecting body 3 of placing on dabber 1 and place the lower locating base 4 under the rubber spring, is shown in fig. 3, is fixed with on the upper detecting body 3 the one-way laser lamp 31, is shown in fig. 5, is carved with on the lower locating base 4 the qualification judging score 41.
The upper detecting body 3 is also fixedly provided with a first locating pin 32 for locating the upper detecting body 3, and during detection, the first locating pin 32 is placed in an upper locating threaded hole 11 on the mandrel 1, and the first locating pin 32 is matched with the upper locating threaded hole 11 in size.
And a second positioning pin 42 for positioning the lower positioning base 4 is fixed on the lower positioning base 4, and during detection, the second positioning pin 42 is placed in a lower positioning threaded hole 21 on the rubber spring, and the second positioning pin 42 is matched with the lower positioning threaded hole 21 in size.
As shown in fig. 5, the qualification score line: the line from the center of the second positioning pin 42 to the center of the lower positioning base 4 is taken as a middle line, and the two sides of the middle line 43 are respectively offset by 2 degrees.
The number of the qualification score lines 41 is equal to the number of the second positioning pins 42.
The number of the single-line laser lamps 31 is equal to the number of the qualification score lines 41; the position of the light beam of the single-wire laser lamp 31 on the upper test body 3 corresponds to the position of the intermediate line 43 of the qualification score line 41. As shown in fig. 3 and 5, the upper detecting body 3 and the lower positioning base 4 are both circular, and when the upper detecting body 3 and the lower positioning base 4 are overlapped, the central lines of the 4 qualification score lines 41 are overlapped with the light rays of the 4 single-line laser lamps 31 one by one.
In the inspection tool according to the present embodiment, an upper inspection body 3 is provided for mounting the single-wire laser lamp 31, and a lower positioning base 4 is provided for scribing the qualification score line 41. The first positioning pin 32 is provided to position the upper detecting body 3, and the second positioning pin 42 is provided to position the lower positioning base 4. The qualification score line 41 is set according to the positional deviation summarized by the experience of the technician. In the embodiment, the number of the upper positioning threaded holes 11 is two, the number of the lower positioning threaded holes 21 is 4, 4 qualification judging scribing lines 41 are arranged on the lower positioning base 4 according to the positions of the second positioning pins 42, the mounting positions of the single-wire laser lamps 31 on the upper detection body 3 are also arranged according to the qualification judging scribing lines 41, and when the deviation of the positions of the upper positioning threaded holes 11 and the lower positioning threaded holes 21 is within the range of-2 degrees, the light rays of the single-wire laser lamps 31 fall in the qualification judging scribing lines 41, so that the product is qualified; when the deviation of the position degree of the upper positioning screw hole 11 and the lower positioning screw hole 21 exceeds the range of-2 to 2 degrees, the light of the single-line laser lamp 31 falls on the qualification judging score line 41 to be the unqualified product.
Example 2
The present embodiment provides a method for detecting the position of the threaded hole on the opposite side of the series of conical rubber springs by using the tool for detecting the position of the threaded hole on the opposite side of the series of conical rubber springs described in the embodiment 1.
S1: aligning the lower positioning threaded holes 21 of the first series of conical rubber springs with the second positioning pins 42, and placing the first series of conical rubber springs on the lower positioning base 4 to finish positioning of the lower positioning base 4;
s2: aligning a first positioning pin 32 on the upper detection body 3 with an upper positioning threaded hole 11 on the mandrel 1, and placing the upper detection body 3 on the mandrel 1 to finish positioning of the upper detection body 3;
s3: when the single-line laser lamp 31 is turned on and the light falls in the qualification judging score line 41, the product is qualified; when the light falls outside the qualification score line 41, the product is rejected.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A first-line conical rubber spring different-surface threaded hole position detection tool is characterized by comprising an upper detection body arranged on a mandrel and a lower positioning base arranged below a rubber spring, wherein a unidirectional laser lamp is fixed on the upper detection body, and a qualification judgment line is carved on the lower positioning base; when the upper detection body and the lower positioning base are overlapped, the center line of the qualified judgment score line is overlapped with the light of the single-line laser lamp one by one; the upper detection body is also fixedly provided with a first positioning pin for positioning the upper detection body, and when in detection, the first positioning pin is placed in an upper positioning threaded hole on the mandrel and is matched with the upper positioning threaded hole in size; and a second positioning pin used for positioning the lower positioning base is fixed on the lower positioning base, and is placed in a lower positioning threaded hole on the rubber spring during detection, and the second positioning pin is matched with the lower positioning threaded hole in size.
2. The primary cone shaped rubber spring out-of-plane threaded hole position degree detection tool according to claim 1, wherein the qualification score line: and taking a connecting line from the center of the second locating pin to the center of the lower locating base as a middle line, and respectively shifting 0-2 degrees to two sides of the middle line.
3. The primary cone shaped rubber spring out-of-plane threaded hole position degree detection tool according to claim 2, wherein the number of qualification score lines is equal to the number of positioning pins two.
4. The detection tool for the position of the out-of-plane threaded hole of the primary conical rubber spring according to claim 3, wherein the number of single-wire laser lamps is equal to the number of qualified judging score lines; and the position of the light ray of the single-wire laser lamp on the upper detection body corresponds to the position of the middle line of the qualified judging score line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110805195.7A CN113418450B (en) | 2021-07-16 | 2021-07-16 | Method and tool for detecting position of special-surface threaded hole of primary conical rubber spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110805195.7A CN113418450B (en) | 2021-07-16 | 2021-07-16 | Method and tool for detecting position of special-surface threaded hole of primary conical rubber spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113418450A CN113418450A (en) | 2021-09-21 |
| CN113418450B true CN113418450B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110805195.7A Active CN113418450B (en) | 2021-07-16 | 2021-07-16 | Method and tool for detecting position of special-surface threaded hole of primary conical rubber spring |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001041715A (en) * | 1991-12-19 | 2001-02-16 | Topcon Corp | Hole size measuring device |
| CN103900475A (en) * | 2013-11-22 | 2014-07-02 | 大连太平洋电子有限公司 | Laser blind hole and through hole alignment precision detection method |
| CN104897062A (en) * | 2015-06-26 | 2015-09-09 | 北方工业大学 | Visual measurement method and device for shape and position deviation of part non-coplanar parallel holes |
| CN106989649A (en) * | 2016-01-20 | 2017-07-28 | 株洲时代新材料科技股份有限公司 | Paired journal box spring position of mounting hole degree flexible checking implement |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201622036U (en) * | 2010-03-28 | 2010-11-03 | 荆州恒盛汽车系统有限公司 | Inspection tool for detecting comprehensive true position of shell |
| CN108151620A (en) * | 2017-12-16 | 2018-06-12 | 武汉华夏精冲技术有限公司 | A kind of short circular arc of fine part and hole position comprehensive check tool and detection method |
| CN207963681U (en) * | 2017-12-22 | 2018-10-12 | 中信戴卡股份有限公司 | A kind of knuckle comprehensive check tool |
| CN207946059U (en) * | 2018-02-12 | 2018-10-09 | 青岛森昊减震科技有限公司 | A kind of locating and detecting device of air spring |
| CN211601864U (en) * | 2020-04-09 | 2020-09-29 | 沈阳辽石曲轴制造有限公司 | Crankshaft threaded hole position degree checking fixture |
-
2021
- 2021-07-16 CN CN202110805195.7A patent/CN113418450B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001041715A (en) * | 1991-12-19 | 2001-02-16 | Topcon Corp | Hole size measuring device |
| CN103900475A (en) * | 2013-11-22 | 2014-07-02 | 大连太平洋电子有限公司 | Laser blind hole and through hole alignment precision detection method |
| CN104897062A (en) * | 2015-06-26 | 2015-09-09 | 北方工业大学 | Visual measurement method and device for shape and position deviation of part non-coplanar parallel holes |
| CN106989649A (en) * | 2016-01-20 | 2017-07-28 | 株洲时代新材料科技股份有限公司 | Paired journal box spring position of mounting hole degree flexible checking implement |
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| CN113418450A (en) | 2021-09-21 |
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