CN112683139B - Special-shaped steel wire check ring detection structure and detection method thereof - Google Patents
Special-shaped steel wire check ring detection structure and detection method thereof Download PDFInfo
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Abstract
The invention discloses a detection structure and a detection method for a special-shaped steel wire check ring, and belongs to the technical field of measuring tools. The structure comprises a detection tool and a special-shaped steel wire check ring arranged on the detection tool; the detection tool comprises an outer sleeve and a mandrel, the mandrel is connected with the outer sleeve in a sliding mode and is located on the inner side of the outer sleeve, the circumferential directions of the mandrel and the outer sleeve are limited through limiting pins, and workpiece placing grooves are formed in the mandrel and the outer sleeve in a matched mode. Whether the bending direction, the perpendicularity and the size H of the clamping section B on the deformed steel wire retaining ring are qualified or not can be rapidly detected. Whether the bending angle alpha and the size h of the clamping section A on the deformed steel wire retaining ring are qualified or not can be rapidly detected. The detection tool has the advantages of simple structure, low manufacturing cost, simple and convenient operation, reliable detection result, high detection efficiency, particular suitability for detecting the special-shaped steel wire check rings in batches and the like.
Description
Technical Field
The invention relates to a detection structure and a detection method for a special-shaped steel wire check ring, and belongs to the technical field of measuring tools.
Background
The steel wire retainer ring is widely used in the fields of aviation, aerospace craft and the like, is usually an elastic element, and has close relation between form and position tolerance and size precision and product assembly reliability. As shown in fig. 1 and fig. 2, a special-shaped steel wire retainer ring 1 includes an arc segment 10, one end of the arc segment 10 is provided with a clamping section a11 along a radial direction, and the other end is provided with a clamping section B12 along an axial direction; h, h, α, etc. are the dimensions to be measured, depending on the assembly requirements. Due to the influence of elastic deformation, when the existing measuring tool or tool is used for detecting the size to be detected of the special-shaped steel wire check ring, the problems of low detection efficiency and large detection error exist.
Chinese patent publication No. CN103727859A discloses a check ring detection device for a wheel rim, which has three claws driven by a power mechanism to perform telescopic motion for clamping and expanding the check ring; the supporting platform is used for supporting the standard checking fixture and placing the standard checking fixture in the check ring. The size data of the notch of the check ring is obtained by detecting the size of the notch of the check ring before assembly, and the quality control of the check ring is ensured by data statistical analysis technology and size control.
However, this detection device is only suitable for detecting the size of the notch of the check ring, and is not suitable for detecting the size to be measured of the deformed steel wire check ring.
Disclosure of Invention
In order to solve the technical problem, the invention provides a detection structure and a detection method for a special-shaped steel wire check ring.
The invention is realized by the following technical scheme:
a detection structure of a special-shaped steel wire check ring comprises a detection tool and the special-shaped steel wire check ring arranged on the detection tool;
the special-shaped steel wire retainer ring comprises an arc section, one end of the arc section is provided with a clamping section A along the radial direction, the other end of the arc section is provided with a clamping section B along the axial direction, the clamping section A and the clamping section B are in arc transition with the arc section, and the radius of the central line of the arc transition positions of the clamping section A and the arc section, and the radius of the central line of the arc transition positions of the clamping section B and the arc section are both R1;
the detection tool comprises an outer sleeve and a mandrel, the mandrel is connected with the outer sleeve in a sliding mode and is located on the inner side of the outer sleeve, the circumferential directions of the mandrel and the outer sleeve are limited through limiting pins, and workpiece placing grooves are formed in the mandrel and the outer sleeve in a matched mode.
The outer sleeve is of a circular ring-shaped structure, the inner wall of the outer sleeve comprises an arc surface A and an arc surface B, the radius of the arc surface B is smaller than that of the arc surface A, two ends of the arc surface B are connected with the arc surface A through a butt joint surface A respectively, a clamping groove A is arranged at the butt joint surface A, and a half pin hole A is arranged on the arc surface B along the axial direction.
The radius of the arc surface A is Dmax/2, and D is the outer diameter of the arc section; the radius of the circular arc surface B is dmax/2, and d is the inner diameter of the circular arc section; the connecting part of the arc surface A and the clamping groove A is rounded, the radius of the rounded corner A is R1, the connecting part of one end of the arc surface A, which is far away from the clamping groove A, and the butting surface A is rounded, and the radius of the rounded corner B is d 0/2; the joint of the arc surface B and the clamping groove A is rounded, the radius of the rounded corner C is d0/2, and d0 is the line diameter of the special-shaped steel wire retainer ring.
The distances from the half pin holes A to the two ends of the arc surface B are different; when the round points of the fillet B are positioned on a vertical line, the clamping groove A is designed according to alpha min and alpha max, and alpha is an included angle between the central axis of the clamping section A and a horizontal line when the circle center of the special-shaped steel wire retainer ring and the circle center of the clamping section B are positioned on the same vertical line; a marking line A and a marking line B are arranged on the outer sleeve at the position of the clamping groove A, and the marking line A is located between the marking line B and the arc surface B.
The distance from the marked line A to the center of the special-shaped steel wire retainer ring is hmin, the distance from the marked line B to the center of the special-shaped steel wire retainer ring is hmax, and h is the distance-d/2 from one end, far away from the circular arc section, of the clamping section A (11) to the center of the special-shaped steel wire retainer ring.
Dabber and overcoat clearance fit, the outer disc of dabber includes arc surface C and arc surface D, and arc surface C's radius is Dmax/2, and arc surface D's radius is Dmax/2, and arc surface D's both ends are connected with arc surface C through butt joint face B respectively, arc surface D's one end and butt joint face B's junction radius angle D, and fillet D's radius is D0/2, is equipped with half pinhole B along the axial on the arc surface D, and the one end of dabber is equipped with the notch along circumference.
One end of the circular arc surface C, which is far away from the fillet D, extends into the clamping groove A, and the extending length is positioned between D0/2 and D0.
The width of the notch in the radial direction is d 0; the depth of the notch along the axial direction is Hmax, a marked line C is arranged on the arc surface C, the distance from the marked line C to the bottom surface of the notch is Hmin, and H is the axial length of the special-shaped steel wire retainer ring.
A detection method of a special-shaped steel wire check ring detection structure comprises the following steps:
A. sleeving the outer sleeve on the mandrel, rotating the outer sleeve to enable the half pin hole A and the half pin hole B to be concentric, and inserting the limiting pin into a hole formed by the half pin hole A and the half pin hole B in a cohesion mode;
B. making the clamping section B of the special-shaped steel wire check ring downwards and attached to the round angle B and the butt joint surface A, judging whether the bending direction of the clamping section B is qualified or not, judging whether the included angle alpha of the clamping section A is qualified or not, if both the included angle alpha and the included angle alpha are qualified, entering the next step, and if not, judging that the special-shaped steel wire check ring is an unqualified product;
C. judging whether the length of the clamping section A is qualified or not, if so, entering the next step, otherwise, judging that the special-shaped steel wire retainer ring is an unqualified product;
D. removing the limiting pin, reversely installing the core shaft relative to the outer sleeve, judging whether the verticality of the clamping section B is qualified, if so, entering the next step, otherwise, judging that the special-shaped steel wire check ring is an unqualified product;
F. sleeving the arc section of the special-shaped steel wire retainer ring on the outer circular surface of the notch, enabling the arc section to be tangent to the bottom surface of the notch, judging whether the length of the clamping section B is qualified or not, if so, determining that the special-shaped steel wire retainer ring is qualified, and otherwise, determining that the special-shaped steel wire retainer ring is unqualified.
In the step B, if the arc section can be pressed into a groove formed by the notch and the outer sleeve, the bending direction of the clamping section B is qualified, and if the clamping section A can be placed into the clamping groove A, the included angle alpha of the clamping section A is qualified; in the step C, if one end of the clamping section A, which is far away from the arc section, is positioned between the marked line A and the marked line B, the length of the clamping section A is qualified; in the step D, if the clamping section B can be inserted into a hole formed by the butt joint surface A, the butt joint surface B, the fillet B and the fillet D, the verticality of the clamping section B is qualified; and F, if one end, far away from the circular arc section, of the clamping section B is positioned between the marked line C and the end face of the mandrel, the length of the clamping section B is qualified.
The invention has the beneficial effects that:
1. whether the bending direction, the verticality and the size H of the clamping section B on the deformed steel wire retaining ring are qualified or not can be rapidly detected.
2. Whether the bending angle alpha and the size h of the clamping section A on the deformed steel wire retaining ring are qualified or not can be rapidly detected.
3. The detection tool has the advantages of simple structure, low manufacturing cost, simple and convenient operation, reliable detection result, high detection efficiency, particular suitability for detecting the special-shaped steel wire check rings in batches and the like.
Drawings
FIG. 1 is a schematic front view of the special-shaped steel wire retainer ring of the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a schematic front view of the inspection tool of the present invention;
FIG. 4 is a schematic cross-sectional view taken along A-A of FIG. 3;
FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3;
FIG. 6 is a front view of the outer cover of the present invention;
FIG. 7 is a schematic cross-sectional view taken along line C-C of FIG. 6;
FIG. 8 is a front view of a mandrel according to the present invention;
fig. 9 is a schematic cross-sectional view along D-D of fig. 8.
In the figure: 1-special-shaped steel wire retainer ring, 10-arc section, 11-clamping section A, 12-clamping section B, 2-outer sleeve, 20-arc surface A, 21-clamping groove A, 22-arc surface B, 23-half pin hole A, 3-core shaft, 30-arc surface C, 31-arc surface D, 32-notch, 33-half pin hole B and 4-limiting pin.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 to 9, the detection structure for the deformed steel wire retainer ring according to the present invention includes a detection tool and a deformed steel wire retainer ring 1 disposed on the detection tool;
the special-shaped steel wire retainer ring 1 comprises an arc section 10, one end of the arc section 10 is provided with a clamping section A11 along the radial direction, the other end of the arc section 10 is provided with a clamping section B12 along the axial direction, the clamping section A11 and the clamping section B12 are in arc transition with the arc section 10, and the radius of the center line of the arc transition position of the clamping section A11 and the arc section 10, and the radius of the center line of the arc transition position of the clamping section B12 and the arc section 10 are both R1;
the detection tool comprises an outer sleeve 2 and a mandrel 3, the mandrel 3 is connected with the outer sleeve 2 in a sliding mode and is located on the inner side of the outer sleeve 2, the circumferential directions of the mandrel 3 and the outer sleeve 2 are limited through a limiting pin 4, and a workpiece placing groove is machined in a matched mode on the mandrel 3 and the outer sleeve 2. In use, the workpiece holding groove comprises a groove formed by the clamping groove A21, the notch 32 and the outer sleeve 2, and a hole formed by the butt joint surface A, the butt joint surface B, the round angle B and the round angle D. The outer sleeve 2 and the core shaft 3 have a shaping effect on the special-shaped steel wire check ring 1, the outer sleeve 2 limits the outer diameter of the special-shaped steel wire check ring 1, and the core shaft 3 limits the inner diameter of the special-shaped steel wire check ring 1, so that detection errors are reduced, and the reliability of detection results is improved.
The outer sleeve 2 is of a circular ring-shaped structure, the inner wall of the outer sleeve 2 comprises an arc surface A20 and an arc surface B22, the radius of the arc surface B22 is smaller than that of the arc surface A20, two ends of the arc surface B22 are respectively connected with the arc surface A20 through butt joint surfaces A, a clamping groove A21 is machined in the butt joint surface A, and a half pin hole A23 is machined in the arc surface B22 in the axial direction.
The radius of the circular arc surface A20 is Dmax/2, and D is the outer diameter of the circular arc section 10; the radius of the circular arc surface B22 is dmax/2, and d is the inner diameter of the circular arc section 10; the connecting part of the arc surface A20 and the clamping groove A21 is rounded, the radius of the rounded corner A is R1, the connecting part of one end of the arc surface A20, which is far away from the clamping groove A21, and the butting surface A is rounded, and the radius of the rounded corner B is d 0/2; the joint of the arc surface B22 and the clamping groove A21 is rounded, the radius of the rounded corner C is d0/2, and d0 is the wire diameter of the special-shaped steel wire retainer ring 1. When the tool is used, the radius of the arc surface A20 is designed to be Dmax/2, and the radius of the arc surface B22 is designed to be Dmax/2, so that the tool is convenient to machine and detect.
The distances from the half pin hole A23 to the two ends of the arc surface B22 are different; when the round point of the fillet B is positioned on a vertical line, the clamping groove A21 is designed according to alpha min and alpha max, and alpha is an included angle between the central axis of the clamping section A11 and a horizontal line when the circle center of the special-shaped steel wire retainer ring 1 and the circle center of the clamping section B12 are positioned on the same vertical line; a marking line A and a marking line B are arranged on the clamping groove A21 on the outer sleeve 2, and the marking line A is positioned between the marking line B and the circular arc surface B22. Because half pinhole A23 is not equal to the distance at arc surface B22 both ends, when overcoat 2 and dabber 3 are just adorned, half pinhole A23 and half pinhole B33 can be concentric, and when the dress turns over, half pinhole A23 and half pinhole B33 are not concentric, conveniently distinguish square dress. As shown in fig. 6, when α is α min, a surface close to the circular arc surface B22 of the card slot a21 may be machined, and when α is α max, a surface close to the circular arc surface a20 of the card slot a21 may be machined.
The distance from the marked line A to the circle center of the special-shaped steel wire check ring 1 is hmin, the distance from the marked line B to the circle center of the special-shaped steel wire check ring 1 is hmax, and h is the distance-d/2 from one end, far away from the circular arc section 10, of the clamping section A11 to the circle center of the special-shaped steel wire check ring 1.
Dabber 3 and 2 clearance fit of overcoat, dabber 3's excircle face includes arc surface C30 and arc surface D31, arc surface C30's radius is Dmax/2, arc surface D31's radius is Dmax/2, arc surface D31's both ends are connected with arc surface C30 through butt joint face B respectively, arc surface D31's one end and butt joint face B's junction radius angle D, fillet D's radius is D0/2, arc surface D31 goes up to be equipped with half pinhole B33 along the axial, dabber 3's one end has notch 32 along circumference processing. In use, the mandrel 3 is fitted with the outer casing 2 and safety margins are taken into account.
One end of the circular arc surface C30, which is far away from the fillet D, extends into the clamping groove A21, and the extending length is positioned between D0/2 and D0. When the clamping section A11 is used, one end of the circular arc surface C30, which is far away from the round angle D, extends into the clamping groove A21 to support the clamping section A11.
The width of the slot 32 in the radial direction is d 0; the depth of the notch 32 along the axial direction is Hmax, the arc surface C30 is provided with a marking line C, the distance from the marking line C to the bottom surface of the notch 32 is Hmin, and H is the axial length of the special-shaped steel wire retainer ring 1.
A detection method of a special-shaped steel wire check ring detection structure comprises the following steps:
A. sleeving the outer sleeve 2 on the mandrel 3, rotating the outer sleeve 2 to enable the half pin hole A23 and the half pin hole B33 to be concentric, and inserting the limiting pin 4 into a hole formed by encircling the half pin hole A23 and the half pin hole B33;
B. enabling the clamping section B12 of the special-shaped steel wire check ring 1 to face downwards and be attached to the fillet B and the butt joint face A, judging whether the bending direction of the clamping section B12 is qualified or not, judging whether the included angle alpha of the clamping section A11 is qualified or not, if both are qualified, entering the next step, and if not, judging that the special-shaped steel wire check ring 1 is an unqualified product;
C. judging whether the length of the clamping section A11 is qualified, if so, entering the next step, otherwise, judging that the special-shaped steel wire retainer ring 1 is an unqualified product;
D. removing the limiting pin 4, reversely installing the core shaft 3 relative to the outer sleeve 2, judging whether the verticality of the clamping section B12 is qualified, if so, entering the next step, otherwise, judging that the special-shaped steel wire retainer ring 1 is an unqualified product;
F. sleeving the arc section 10 of the special-shaped steel wire retainer ring 1 on the outer circular surface of the notch 32, enabling the arc section 10 to be tangent to the bottom surface of the notch 32, judging whether the length of the clamping section B12 is qualified, if so, determining that the special-shaped steel wire retainer ring 1 is a qualified product, otherwise, determining that the special-shaped steel wire retainer ring is an unqualified product.
In the step B, if the circular arc section 10 can be pressed into a groove formed by the notch 32 and the outer sleeve 2, the bending direction of the clamping section B12 is qualified, and if the clamping section A11 can be placed into the clamping groove A21, the included angle alpha of the clamping section A11 is qualified; in the step C, if one end of the clamping section A11, which is far away from the arc section 10, is positioned between the marked line A and the marked line B, the length of the clamping section A11 is qualified; in the step D, if the clamping section B12 can be inserted into a hole formed by the butt joint surface A, the butt joint surface B, the fillet B and the fillet D, the verticality of the clamping section B12 is qualified; and in the step F, if one end of the clamping section B12, which is far away from the arc section 10, is positioned between the marking C and the end face of the mandrel 3, the length of the clamping section B12 is qualified.
The special-shaped steel wire check ring detection structure and the detection method thereof provided by the invention have the following beneficial effects:
1. whether the bending direction, the perpendicularity and the size H of the clamping section B12 on the special-shaped steel wire check ring 1 are qualified or not can be quickly detected.
2. Whether the bending angle alpha and the size h of the clamping section A11 on the special-shaped steel wire check ring 1 are qualified or not can be quickly detected.
3. The detection tool has the advantages of simple structure, low manufacturing cost, simple and convenient operation, reliable detection result, high detection efficiency, particular suitability for detecting the special-shaped steel wire check rings 1 in batches and the like.
Claims (9)
1. The utility model provides a heterotypic steel wire retaining ring detects structure which characterized in that: comprises a detection tool and a special-shaped steel wire retainer ring (1) arranged on the detection tool;
the special-shaped steel wire retainer ring (1) comprises an arc section (10), one end of the arc section (10) is provided with a clamping section A (11) along the radial direction, the other end of the arc section (10) is provided with a clamping section B (12) along the axial direction, the clamping section A (11), the clamping section B (12) and the arc section (10) are in arc transition, and the radius of the central line of the arc transition position of the clamping section A (11) and the arc section (10), and the radius of the central line of the arc transition position of the clamping section B (12) and the arc section (10) are R1；
The detection tool comprises an outer sleeve (2) and a mandrel (3), the mandrel (3) is connected with the outer sleeve (2) in a sliding mode and is located on the inner side of the outer sleeve (2), the circumferential directions of the mandrel (3) and the outer sleeve (2) are limited through a limiting pin (4), and workpiece placing grooves are formed in the mandrel (3) and the outer sleeve (2) in a matched mode;
dabber (3) and overcoat (2) clearance fit, the outer disc of dabber (3) includes arc surface C (30) and arc surface D (31), and the radius of arc surface C (30) is Dmax/2, the radius of the circular arc surface D (31) is DmaxD is the outer diameter of the arc section (10), two ends of the arc surface D (31) are respectively connected with the arc surface C (30) through butt joint surfaces B, one end of the arc surface D (31) is chamfered at the joint of the butt joint surfaces B, and the radius of the fillet D is D0/2，d0The special-shaped steel wire retainer ring is characterized in that a half pin hole B (33) is axially arranged on the arc surface D (31) along the line diameter of the special-shaped steel wire retainer ring (1), and a notch (32) is circumferentially arranged at one end of the mandrel (3).
2. The profiled wire retaining ring detection structure of claim 1, wherein: overcoat (2) are the ring form structure, and the inner wall of overcoat (2) includes arc surface A (20) and arc surface B (22), and the radius of arc surface B (22) is less than the radius of arc surface A (20), and the both ends of arc surface B (22) are connected with arc surface A (20) through butt joint face A respectively, and wherein butt joint face A department is equipped with draw-in groove A (21), is equipped with half pinhole A (23) along the axial on arc surface B (22).
3. The profiled wire retaining ring detection structure of claim 2, wherein: the radius of the arc surface A (20) is Dmax2; the radius of the arc surface B (22) is dmaxD is the inner diameter of the circular arc section (10); the joint of the arc surface A (20) and the clamping groove A (21) is chamfered, and the radius of the fillet A is R1The joint of one end of the arc surface A (20) far away from the clamping groove A (21) and the butt joint surface A is chamfered, and the radius of the fillet B is d02; the joint of the arc surface B (22) and the clamping groove A (21) is chamfered, and the radius of the fillet C is d0/2。
4. The profiled wire retaining ring detection structure of claim 2, wherein: the distances from the half pin hole A (23) to the two ends of the arc surface B (22) are different; when the round point of the fillet B is positioned on the vertical line, the clamping groove A (21) is according to alphaminAnd alphamaxDesigning, wherein alpha is an included angle between a central axis of the clamping section A (11) and a horizontal line when the circle center of the special-shaped steel wire retainer ring (1) and the circle center of the clamping section B (12) are positioned on the same vertical line; a marking line A and a marking line B are arranged on the outer sleeve (2) at the position of the clamping groove A (21), and the marking line A is located between the marking line B and the arc surface B (22).
5. The profiled wire retaining ring detection structure of claim 4, wherein: the distance from the marked line A to the circle center of the special-shaped steel wire retainer ring (1) is hminThe distance from the marked line B to the circle center of the special-shaped steel wire retainer ring (1) is hmaxH = the distance-d/2 from one end of the clamping section A (11) far away from the circular arc section (10) to the circle center of the special-shaped steel wire retainer ring (1).
6. The profiled wire retaining ring detection structure of claim 1, wherein: one end of the arc surface C (30) far away from the fillet D extends into the clamping groove A (21), and the extending length is positioned at D02 to d0In the meantime.
7. The profiled wire retaining ring detection structure of claim 1, wherein: the width of the notch (32) in the radial direction is d0(ii) a The depth of the notch (32) in the axial direction is HmaxThe arc surface C (30) is provided with a marked line C, and the distance from the marked line C to the bottom surface of the notch (32) is HminAnd H is the axial length of the special-shaped steel wire retainer ring (1).
8. The method for detecting the detection structure of the profiled steel wire check ring according to claim 4, characterized in that: the method comprises the following steps:
A. sleeving the outer sleeve (2) on the mandrel (3), rotating the outer sleeve (2) to enable the half pin hole A (23) and the half pin hole B (33) to be concentric, and inserting the limiting pin (4) into a hole formed by encircling the half pin hole A (23) and the half pin hole B (33);
B. enabling a clamping section B (12) of the special-shaped steel wire check ring (1) to face downwards and be attached to a fillet B and a butt joint surface A, judging whether the bending direction of the clamping section B (12) is qualified or not, judging whether an included angle alpha of the clamping section A (11) is qualified or not, entering the next step if the bending direction of the clamping section B (12) is qualified, and otherwise, enabling the special-shaped steel wire check ring (1) to be an unqualified product;
C. judging whether the length of the clamping section A (11) is qualified or not, if so, entering the next step, otherwise, judging that the special-shaped steel wire retainer ring (1) is an unqualified product;
D. removing the limiting pin (4), reversely installing the core shaft (3) relative to the outer sleeve (2), judging whether the verticality of the clamping section B (12) is qualified, if so, entering the next step, otherwise, judging that the special-shaped steel wire retainer ring (1) is an unqualified product;
F. sleeving the arc section (10) of the special-shaped steel wire retainer ring (1) on the outer circular surface of the notch (32), enabling the arc section (10) to be tangent to the bottom surface of the notch (32), judging whether the length of the clamping section B (12) is qualified or not, if so, determining that the special-shaped steel wire retainer ring (1) is a qualified product, otherwise, determining that the special-shaped steel wire retainer ring is an unqualified product.
9. The method for detecting the detection structure of the profiled steel wire check ring according to claim 8, characterized in that: in the step B, if the circular arc section (10) can be pressed into a groove enclosed by the notch (32) and the outer sleeve (2), the bending direction of the clamping section B (12) is qualified, and if the clamping section A (11) can be placed into the clamping groove A (21), the included angle alpha of the clamping section A (11) is qualified; in the step C, if one end of the clamping section A (11) far away from the arc section (10) is positioned between the marked line A and the marked line B, the length of the clamping section A (11) is qualified; in the step D, if the clamping section B (12) can be inserted into a hole formed by the butt joint surface A, the butt joint surface B, the fillet B and the fillet D, the verticality of the clamping section B (12) is qualified; and F, if one end of the clamping section B (12) far away from the arc section (10) is positioned between the marked line C and the end face of the mandrel (3), the length of the clamping section B (12) is qualified.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011518961.3A CN112683139B (en) | 2020-12-21 | 2020-12-21 | Special-shaped steel wire check ring detection structure and detection method thereof |
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| CN202011518961.3A CN112683139B (en) | 2020-12-21 | 2020-12-21 | Special-shaped steel wire check ring detection structure and detection method thereof |
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| CN112683139B true CN112683139B (en) | 2022-06-17 |
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| CN206504680U (en) * | 2017-02-27 | 2017-09-19 | 天津沛衡五金弹簧有限公司 | A kind of deformed spring completes detection means |
| CN207263081U (en) * | 2017-09-05 | 2018-04-20 | 辉县市博宇弹簧有限公司 | A kind of circlip inside diameter detection device |
| CN208419773U (en) * | 2018-05-11 | 2019-01-22 | 东莞市昭浩精密五金制品有限公司 | Special-shaped carbon steel wire special gauge |
| CN210036541U (en) * | 2019-06-21 | 2020-02-07 | 天津沛衡五金弹簧有限公司 | Quick detection device of automobile engine valve spring |
| CN110576125B (en) * | 2019-10-12 | 2021-07-23 | 贵州航天精工制造有限公司 | Forming process for processing stainless steel round wire into special-shaped wire |
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2020
- 2020-12-21 CN CN202011518961.3A patent/CN112683139B/en active Active
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