CN108917562B - Automobile bearing bush circle center contact ratio detection device and working mode thereof - Google Patents
Automobile bearing bush circle center contact ratio detection device and working mode thereof Download PDFInfo
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- CN108917562B CN108917562B CN201810771423.1A CN201810771423A CN108917562B CN 108917562 B CN108917562 B CN 108917562B CN 201810771423 A CN201810771423 A CN 201810771423A CN 108917562 B CN108917562 B CN 108917562B
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- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
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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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- 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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Abstract
The invention discloses a device for detecting the coincidence degree of the circle center of an automobile bearing bush and a working mode thereof, wherein the device comprises a detection base, a standard roundness meter, a bearing bush feeding seat and a circle center detection beam; the standard roundness measuring instrument is arranged on the left side of the detection base, the bearing bush feeding seat is arranged on the right side of the detection base, and the standard roundness measuring instrument is parallel to the lowest end of the arc of the bearing bush feeding seat; the circle center detection beam is arranged at the top of the bearing bush feeding seat, and the lower plane of the circle center detection beam is coincided with the horizontal diameter of the circular arc of the bearing bush feeding seat; the level gauge is arranged on the left side of the horizontal table, and the standard bearing shell arc is arranged on the right side of the horizontal table; the diameter beam is arranged on the horizontal plane at the top end of the arc of the standard bearing bush, and the central plane of the diameter beam is superposed with the horizontal diameter of the arc of the standard bearing bush; the photoelectric head is arranged at the center of the diameter beam, and an outgoing line of the photoelectric head is positioned at the center of an arc of the standard bearing bush; the invention well solves the problem of detection of the contact ratio of the circle centers of the bearing bushes and has good judgment function on improving the working performance of the bearing bushes and the matching degree of the piston connecting rod holes.
Description
Technical Field
The invention relates to the technical field of automobile part detection, in particular to a detection device for an automobile bearing bush, and more particularly relates to a detection device for the coincidence degree of the circle centers of the automobile bearing bush and a working mode thereof.
Background
The engine bush is the part of the sliding bearing contacting with the journal, is in the shape of a tile-shaped semi-cylindrical surface, is very smooth, is generally made of wear-resistant materials such as bronze, antifriction alloy and the like, and can be made of wood, engineering plastics or rubber under special conditions. The bearing shell is divided into a single-piece type and a split type, and the single-piece type bearing shell is generally called a shaft sleeve. The integral bearing bush has two types of oil grooves and oil grooves. The bearing bush and the shaft neck adopt clearance fit and generally do not rotate along with the shaft.
The bearing bush is characterized in that a common bearing bush detection mode mainly comprises a dial indicator, the detection mode has higher requirements on operators, accurate reading and standard use of the dial indicator are required, the fixing mode of the bearing bush is reasonable, and under the comprehensive action of multiple requirements, the conventional bearing bush coaxiality detection mode consumes time and labor, has large detection errors, and high detection precision of high-end equipment but has overlarge cost; the invention aims to solve the problems that the detection effect of an automobile bearing bush coaxiality detection device is not obvious, the error is large, and the price of high-end equipment is high.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide an automobile bearing bush circle center contact ratio detection device and a working mode thereof, and the defects of unobvious detection effect, large error and high price of high-end equipment of the automobile bearing bush coaxiality detection device are overcome.
The purpose of the invention can be realized by the following technical scheme:
a detecting device for coincidence degree of the circle center of an automobile bearing bush and a working mode thereof comprise a detecting base, a standard roundness meter, a bearing bush feeding seat and a circle center detecting beam; the standard roundness measuring instrument is arranged on the left side of the detection base, the bearing bush feeding seat is arranged on the right side of the detection base, and the standard roundness measuring instrument is parallel to the lowest end of the arc of the bearing bush feeding seat; the circle center detecting beam is arranged at the top of the bearing bush feeding seat, and the lower plane of the circle center detecting beam is coincided with the circular arc horizontal diameter of the bearing bush feeding seat.
As a further scheme of the invention, the standard roundness measuring instrument comprises a horizontal table, a level meter, a standard bearing shell arc, a diameter beam and a photoelectric head; the level gauge is arranged on the left side of the horizontal table, and the standard bearing shell arc is arranged on the right side of the horizontal table; the diameter beam is arranged on the horizontal plane at the top end of the arc of the standard bearing bush, and the central plane of the diameter beam is superposed with the horizontal diameter of the arc of the standard bearing bush; the photoelectric head is arranged at the center of the diameter beam, the outgoing line of the photoelectric head is arranged at the center of the arc circle of the standard bearing bush, the ray width of the photoelectric head is 0.1mm, the photoelectric head is arranged on the lead, and the other end of the lead is arranged on the detection lamp.
As a further scheme of the invention, the bearing bush feeding seat comprises a right bearing bush height limiting block, a push block, a positioning cap translation track, a left bearing bush height limiting block and a spring; the right bearing bush height limiting block is arranged at the top end of the right side of the circular arc of the bearing bush inlet piece seat, and the lower plane of the right bearing bush height limiting block is flush with the upper plane of the bearing bush inlet piece seat; the left bearing bush height limiting block is arranged at the top end of the left side of the circular arc of the bearing bush feeding seat, a spring is arranged below the left bearing bush height limiting block, and the lowest end of the spring is flush with the upper plane of the bearing bush feeding seat; a positioning cap translation rail is arranged in the left bearing bush height limiting block, and the positioning cap is arranged above the positioning cap translation rail; the left side of the push block is arranged on the spring, and the positioning cap is arranged above the push block.
As a further scheme of the present invention, the circle center detecting beam comprises a circle center detecting photo head, a left circle center detecting beam and a right circle center detecting beam; the right circle center detection beam is made of rigid materials, the right circle center detection beam is 10mm longer than the radius of the bearing bush feeding seat, the right end of the right circle center detection beam is movably mounted at the top end of the arc right side of the bearing bush feeding seat, and the left end of the right circle center detection beam is mounted on the right side of the circle center detection photoelectric head; the ray width of the photoelectric head for detecting the circle center is 0.1 mm; the left circle center detection beam is made of rigid materials, the right end of the left circle center detection beam is installed on the left side of the circle center detection photoelectric head, and the other end of the left circle center detection beam is installed on the right side of the push block.
The working mode of the device for detecting the coincidence degree of the circle centers of the automobile bearing bushes. The method comprises the following steps:
the method comprises the following steps of firstly, accurately mounting a standard roundness measuring instrument and a bearing bush feeding seat of the device on a detection base according to the mode and connecting the standard roundness measuring instrument and the bearing bush feeding seat into an external circuit;
secondly, the gradienter is leveled on the detection base, and the standard action zero error of the standard roundness measuring instrument is determined;
step three, manually pushing the push block to the right to slowly move the push block to the right, detecting the coincidence of light rays emitted by the photoelectric head when the photoelectric head emits light rays at the circle center, lighting a detection lamp, and finishing calibration;
placing the bearing bush at the leftmost end of the bearing bush inlet piece seat, and pushing the bearing bush to the right side under the action of a right bearing bush height limiting block and a spring;
step five, when the bearing bush is pushed below the circle center detection beam, the inner wall of the bearing bush enters between the circular arc of the bearing bush feeding piece seat and the push block, the push block is pushed to move rightwards by the bearing bush under the action of the wall thickness of the bearing bush, the push block drives the left circle center detection beam, and the left circle center detection beam drives the circle center detection photoelectric head to move rightwards;
and step six, when the circle center detection photoelectric head stops moving, the detection lamp is turned on and the contact ratio of the circle center of the bearing bush is qualified, and if the detection lamp is not turned on, the contact ratio of the circle center of the bearing bush is unqualified.
The invention has the beneficial effects that:
the automobile bearing bush circle center contact ratio detection device and the working mode thereof detect the circle center contact ratio of a bearing bush part through linear light transmission, the bearing bush is placed into a bearing bush inlet seat through standard accurate design and manufacture of a standard bearing bush roundness instrument, the bearing bush is pushed towards the direction of a circle center detection beam in the inlet seat with the same preset bearing bush outer ring roundness, and finally the circle center contact ratio of the bearing bush part is judged through light ray contact; the invention well solves the problem of detection of the contact ratio of the circle centers of the bearing bushes and has good judgment function on improving the working performance of the bearing bushes and the matching degree of the piston connecting rod holes.
Drawings
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic top view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the front surface of the standard roundness measuring instrument of the invention.
Fig. 3 is a schematic structural view of a bearing bush inlet seat in the invention.
Reference numerals: the device comprises a detection base 1, a standard roundness measuring instrument 2, a horizontal table 21, a level instrument 22, a standard bearing arc 23, a diameter beam 24, a photoelectric head 25, a bearing feeding seat 3, a right bearing height limiting block 31, a push block limiting block 32, a push block 33, a positioning cap 34, a positioning cap translation track 35, a left bearing height limiting block 36, a spring 37, a circle center detection beam 4, a circle center detection photoelectric head 41, a left circle center detection beam 42, a right circle center detection beam 43, a detection lamp 5 and a lead 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2 and 3, the invention relates to a device for detecting coincidence degree of the circle center of an automobile bearing bush and a working mode thereof, comprising a detection base 1, a standard roundness measuring instrument 2, a bearing bush feeding seat 3 and a circle center detection beam 4; the standard roundness measuring device 2 is arranged on the left side of the detection base 1, the bearing bush feeding seat 3 is arranged on the right side of the detection base 1, and the standard roundness measuring device 2 is parallel to the arc lowest end of the bearing bush feeding seat 3; the circle center detecting beam 4 is arranged at the top of the bearing bush feeding seat 3, and the lower plane of the circle center detecting beam 4 is coincided with the circular arc horizontal diameter of the bearing bush feeding seat 3.
The standard roundness measuring instrument 2 comprises a horizontal table 21, a level meter 22, a standard bearing arc 23, a diameter beam 24 and a photoelectric head 25; the level gauge 22 is arranged on the left side of the horizontal table 21, and the standard bearing shell arc 23 is arranged on the right side of the horizontal table 21; the diameter beam 24 is arranged on the horizontal plane of the top end of the standard bearing shell arc 23, and the central plane of the diameter beam 24 is superposed with the horizontal diameter of the standard bearing shell arc 23; the photoelectric head 25 is arranged at the center of the diameter beam 24, the outgoing line of the photoelectric head 25 is arranged at the center of the standard bearing shell arc 23, the ray width of the photoelectric head 25 is 0.1mm, the photoelectric head 25 is arranged on the lead 6, and the other end of the lead 6 is arranged on the detection lamp 5; the standard roundness measuring instrument 2 is in a semi-circular arc shape formed under stress when a bearing bush is installed at a circular hole position on a piston connecting rod, a diameter beam 24 is the maximum diameter of the semi-circular arc shape, and a photoelectric head 25 linearly transmits a point at the center of a circle in a light form.
The bearing bush advance member seat 3 comprises a right bearing bush height limiting block 31, a push block limiting block 32, a push block 33, a positioning cap 34, a positioning cap translation track 35, a left bearing bush height limiting block 36 and a spring 37; the right bearing bush height limiting block 31 is arranged at the top end of the arc right side of the bearing bush feeding seat 3, and the lower plane of the right bearing bush height limiting block 31 is flush with the upper plane of the bearing bush feeding seat 3; the left bearing bush height limiting block 36 is arranged at the top end of the left arc side of the bearing bush feeding seat 3, a spring 37 is arranged below the left bearing bush height limiting block 36, and the lowest end of the spring 37 is flush with the upper plane of the bearing bush feeding seat 3; a positioning cap translation rail 35 is arranged in the left bearing block height limiting block 36, and the positioning cap 34 is arranged above the positioning cap translation rail 35; the left side of the push block 33 is arranged on a spring 37, and a positioning cap 34 is arranged above the push block 33; under the action force of the spring 37, the push block 33 takes the positioning cap translation rail 35 as a parallel shaft, and the push block 33 slides in parallel; the right bearing bush height limiting block 31 and the spring 37 limit the bearing bush in the bearing bush inlet piece seat 3.
The circle center detecting beam 4 comprises a circle center detecting photoelectric head 41, a left circle center detecting beam 42 and a right circle center detecting beam 43; the right circle center detecting beam 43 is made of rigid materials, the right circle center detecting beam 43 is 10mm longer than the radius of the bearing bush feeding seat 3, the right end of the right circle center detecting beam 43 is movably mounted at the top end of the right side of the circular arc of the bearing bush feeding seat 3, and the left end of the right circle center detecting beam 43 is mounted at the right side of the circle center detecting photoelectric head 41; the ray width of the detection photoelectric head 41 at the circle center is 0.1 mm; the left circle center detecting beam 42 is made of rigid materials, the right end of the left circle center detecting beam 42 is installed on the left side of the circle center detecting photoelectric head 41, and the other end of the left circle center detecting beam 42 is installed on the right side of the push block 33; when moving to the right, the pushing block 33 pushes the left circle center detecting beam 42 to move to the right, and the right circle center detecting beam 43 retracts into the horizontal plane at the top end of the arc right side of the bearing bush inlet seat 3.
The working mode of the device for detecting the coincidence degree of the circle centers of the automobile bearing bushes. The method comprises the following steps:
the method comprises the following steps of firstly, accurately mounting a standard roundness measuring instrument 2 and a bearing bush feeding seat 3 of the device on a detection base 1 according to the mode and connecting the standard roundness measuring instrument and the bearing bush feeding seat into an external circuit;
secondly, the level gauge 22 is leveled on the detection base 1, and the standard action zero error of the standard roundness meter 2 is determined;
step three, manually pushing the push block 33 rightwards to slowly move rightwards, detecting the coincidence of light rays emitted by the photoelectric head 41 on the photoelectric head 25 through the circle center, lighting the detection lamp 5, and finishing calibration;
step four, the bearing bush is placed at the leftmost end of the bearing bush inlet piece seat 3 and pushed to the right side under the action of the right bearing bush height limiting block 31 and the spring 37;
step five, when the bearing bush is pushed to the position below the circle center detection beam 4, the inner wall of the bearing bush enters the middle of the arc of the bearing bush feeding piece seat 3 and the push block 33, the bearing bush pushes the push block 33 to move rightwards under the action of the wall thickness of the bearing bush, the push block 33 drives the left circle center detection beam 42, and the left circle center detection beam 42 drives the circle center detection photoelectric head 41 to move rightwards;
and step six, when the circle center detection photoelectric head 41 stops moving, the light is overlapped with the photoelectric head 25, the detection lamp 5 is turned on, the contact ratio of the circle center of the bearing bush is qualified, and if the detection lamp 5 is not turned on, the contact ratio of the circle center of the bearing bush is unqualified.
The invention has the beneficial effects that:
the automobile bearing bush circle center contact ratio detection device and the working mode thereof detect the circle center contact ratio of a bearing bush part through linear light transmission, the bearing bush is placed into a bearing bush inlet seat through standard accurate design and manufacture of a standard bearing bush roundness instrument, the bearing bush is pushed towards the direction of a circle center detection beam in the inlet seat with the same preset bearing bush outer ring roundness, and finally the circle center contact ratio of the bearing bush part is judged through light ray contact; the invention well solves the problem of detection of the contact ratio of the circle centers of the bearing bushes and has good judgment function on improving the working performance of the bearing bushes and the matching degree of the piston connecting rod holes.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (2)
1. The device for detecting the coincidence degree of the circle centers of the automobile bearing bushes comprises a detection base (1), a standard roundness meter (2), a bearing bush feeding seat (3) and a circle center detection beam (4), and is characterized in that the standard roundness meter (2) is installed on the left side of the detection base (1), the bearing bush feeding seat (3) is installed on the right side of the detection base (1), and the standard roundness meter (2) is parallel to the lowest end of the arc of the bearing bush feeding seat (3); the circle center detecting beam (4) is arranged at the top of the bearing bush feeding seat (3), and the lower plane of the circle center detecting beam (4) is coincided with the circular arc horizontal diameter of the bearing bush feeding seat (3);
the standard roundness measuring instrument (2) comprises a horizontal table (21), a level meter (22), a standard bearing shell arc (23), a diameter beam (24) and a photoelectric head (25); the level gauge (22) is arranged on the left side of the horizontal table (21), and the standard bearing shell arc (23) is arranged on the right side of the horizontal table (21); the diameter beam (24) is arranged on the horizontal plane of the top end of the standard bearing shell arc (23), and the central plane of the diameter beam (24) is superposed with the horizontal diameter of the standard bearing shell arc (23); the photoelectric head (25) is arranged at the center of the diameter beam (24), the ray emitted by the photoelectric head (25) is positioned at the center of a standard bearing arc (23), the ray width of the photoelectric head (25) is 0.1mm, the photoelectric head (25) is arranged on the lead (6), and the other end of the lead (6) is arranged on the detection lamp (5);
the bearing bush feeding seat (3) comprises a right bearing bush height limiting block (31), a push block limiting block (32), a push block (33), a positioning cap (34), a positioning cap translation track (35), a left bearing bush height limiting block (36) and a spring (37); the right bearing bush height limiting block (31) is arranged at the top end of the arc right side of the bearing bush feeding seat (3), and the lower plane of the right bearing bush height limiting block (31) is flush with the upper plane of the bearing bush feeding seat (3); the left bearing bush height limiting block (36) is arranged at the top end of the left side of the circular arc of the bearing bush feeding seat (3), a spring (37) is installed below the left bearing bush height limiting block (36), and the lowest end of the spring (37) is flush with the upper plane of the bearing bush feeding seat (3); a positioning cap translation rail (35) is arranged in the left bearing bush height limiting block (36), and a positioning cap (34) is arranged above the positioning cap translation rail (35); the left side of the push block (33) is installed on a spring (37), and a positioning cap (34) is arranged above the push block (33);
the circle center detecting beam (4) comprises a circle center detecting photoelectric head (41), a left circle center detecting beam (42) and a right circle center detecting beam (43); the right circle center detecting beam (43) is made of rigid materials, the radius length of the right circle center detecting beam (43) is 10mm longer than that of the bearing bush feeding seat (3), the right end of the right circle center detecting beam (43) is movably installed at the top end of the arc right side of the bearing bush feeding seat (3), and the left end of the right circle center detecting beam (43) is installed on the right side of the circle center detecting photoelectric head (41); the ray width of the circle center detection photoelectric head (41) is 0.1 mm; the left circle center detecting beam (42) is made of rigid materials, the right end of the left circle center detecting beam (42) is installed on the left side of the circle center detecting photoelectric head (41), and the other end of the left circle center detecting beam (42) is installed on the right side of the push block (33).
2. The working mode of the device for detecting the contact ratio of the circle centers of the bearing bushes of the automobiles according to claim 1 is characterized by comprising the following steps:
the method comprises the following steps that firstly, a standard roundness meter (2) of the device is arranged on the left side of a detection base (1), a bearing bush feeding seat (3) is arranged on the right side of the detection base (1), and the standard roundness meter (2) is parallel to the lowest end of an arc of the bearing bush feeding seat (3); the standard roundness measuring device (2) and the bearing bush feeding seat (3) are accurately installed on the detection base (1) and then are connected to an external circuit;
secondly, the level meter (22) is aligned horizontally on the detection base (1), and the standard action zero error of the standard roundness meter (2) is determined;
step three, manually pushing the push block (33) to the right to slowly move to the right, overlapping the circle center detection photoelectric head (41) and the light emitted by the photoelectric head (25), lighting the detection lamp (5), and finishing calibration;
placing the bearing bush at the leftmost end of the bearing bush feeding seat (3), and pushing the bearing bush to the right side under the action of a right bearing bush height limiting block (31) and a spring (37);
step five, when the bearing bush is pushed to the position below the circle center detection beam (4), the inner wall of the bearing bush enters the middle of the arc of the bearing bush feeding piece seat (3) and the push block (33), the bearing bush pushes the push block (33) to move rightwards under the action of the wall thickness of the bearing bush, the push block (33) drives the left circle center detection beam (42), and the left circle center detection beam (42) drives the circle center detection photoelectric head (41) to move rightwards;
and step six, when the circle center detection photoelectric head (41) stops moving, the light of the detection light head is overlapped with the light of the photoelectric head (25), the detection lamp (5) is turned on, the contact ratio of the circle center of the bearing bush is qualified, and if the detection lamp (5) is not turned on, the contact ratio of the circle center of the bearing bush is unqualified.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810771423.1A CN108917562B (en) | 2018-07-13 | 2018-07-13 | Automobile bearing bush circle center contact ratio detection device and working mode thereof |
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| CN201810771423.1A CN108917562B (en) | 2018-07-13 | 2018-07-13 | Automobile bearing bush circle center contact ratio detection device and working mode thereof |
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| CN108917562B true CN108917562B (en) | 2020-06-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB555893A (en) * | 1942-06-27 | 1943-09-10 | Coventry Gauge & Tool Co Ltd | Improvements in the gauging of circular or partly circular work |
| CN103630063A (en) * | 2012-08-29 | 2014-03-12 | 中国二十冶集团有限公司 | Concentricity measuring device and measuring method of Carrousel reeler bearing pedestal |
| CN204788232U (en) * | 2015-07-17 | 2015-11-18 | 湖南省卓尔轴瓦科技有限公司 | Digital axle bush automatic checkout device based on singlechip |
| CN106705817A (en) * | 2017-03-09 | 2017-05-24 | 安徽华茂纺织股份有限公司 | Spinning and carding machine doffer dynamic balancer coaxiality checking apparatus and application method thereof |
| CN107607027B (en) * | 2017-08-31 | 2024-03-01 | 广州市昊志机电股份有限公司 | Universal taper detection device |
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Effective date of registration: 20200518 Address after: 245200 No.1 Tanshi Road, Shexian Economic Development Zone, Huangshan City, Anhui Province Applicant after: HUANGSHAN MINGLUN PRECISION HARDWARE Co.,Ltd. Address before: 230000 Anhui Hefei economic and Technological Development Zone, Hefei City, A, building 508 rooms Applicant before: ANHUI YUEZHONG AUTO BODY EQUIPMENT Co.,Ltd. |
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Denomination of invention: A device for measuring the center coincidence of automobile bearing pads and its working mode Effective date of registration: 20221009 Granted publication date: 20200616 Pledgee: Bank of China Limited Huangshan Branch Pledgor: HUANGSHAN MINGLUN PRECISION HARDWARE Co.,Ltd. Registration number: Y2022980017790 |
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Date of cancellation: 20231103 Granted publication date: 20200616 Pledgee: Bank of China Limited Huangshan Branch Pledgor: HUANGSHAN MINGLUN PRECISION HARDWARE Co.,Ltd. Registration number: Y2022980017790 |
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Denomination of invention: A device for detecting the center of circle overlap of automotive bearing shells and its working mode Granted publication date: 20200616 Pledgee: Bank of China Limited Huangshan Branch Pledgor: HUANGSHAN MINGLUN PRECISION HARDWARE Co.,Ltd. Registration number: Y2024980003704 |