CN201575801U - Pneumatic comprehensive detection device for connecting rods - Google Patents

Pneumatic comprehensive detection device for connecting rods Download PDF

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Publication number
CN201575801U
CN201575801U CN2009202243981U CN200920224398U CN201575801U CN 201575801 U CN201575801 U CN 201575801U CN 2009202243981 U CN2009202243981 U CN 2009202243981U CN 200920224398 U CN200920224398 U CN 200920224398U CN 201575801 U CN201575801 U CN 201575801U
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CN
China
Prior art keywords
measuring head
gauge head
detection
big
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2009202243981U
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Chinese (zh)
Inventor
魏淑梅
张秋丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANMENXIA ZHONGYUAN MEASURING INSTRUMENT CO Ltd
Original Assignee
SANMENXIA ZHONGYUAN MEASURING INSTRUMENT CO Ltd
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Application filed by SANMENXIA ZHONGYUAN MEASURING INSTRUMENT CO Ltd filed Critical SANMENXIA ZHONGYUAN MEASURING INSTRUMENT CO Ltd
Priority to CN2009202243981U priority Critical patent/CN201575801U/en
Application granted granted Critical
Publication of CN201575801U publication Critical patent/CN201575801U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a pneumatic comprehensive detection device for connecting rods, which comprises a pedestal, wherein a base plate is arranged on the pedestal, a detection mechanism and a lifting mechanism are respectively arranged at the upper and the lower parts of the base plate; a supporting plate is arranged at the top of the lifting mechanism; the supporting plate and the detection device slide up and down and are connected with each other in a matched manner; and the detection mechanism comprises a big measuring head and a small measuring head which are vertically arranged on the base plate, wherein both the big measuring head and the small measuring head adopt cylindrical structures, and a plurality of nozzle groups are arranged on the circumferential surfaces of the big measuring head and the small measuring head. By adopting the pneumatic measuring manner, the big measuring head and the small measuring head in the device convert the change of part's size into the change of air flow, and float-type pneumatic measurement instruments connected to the rear parts of the big measuring head and the small measuring head indicate the change quantity. The device with the advantages of simple and reliable operation, high detection efficiency and strong environmental adaptation can be placed in a workshop to detect batches of connecting rods, can be widely applied to the industries of automobiles, motorcycles and air cooling machines in China so as to provide reliable detecting guarantee for the industries.

Description

The pneumatic comprehensive detection device of connecting rod
Technical field
The utility model belongs to a kind of mechanical component accurate detector device, relates in particular to the pneumatic comprehensive detection device of a kind of connecting rod.
Background technology
Connecting rod is one of strength member in Vehicular internal combustion engine, the cold machine compressor, and macropore wherein is connected with engine crankshaft, and aperture is connected to come transferring power with piston pin in the piston.The project that connecting rod requires to detect usually is: big bore dia and plain line parallel degree; Hole diameter and plain line parallel degree; Two hole centre distances; The depth of parallelism of two axially bored lines and torsion resistance, wherein the most difficult detection be the depth of parallelism and the torsion resistance of axis.Present pick-up unit still can not be realized the comprehensive detection of above-mentioned project.
For a long time domestic, the aperture is with the general measurer of low precision---dial bore gage detects; Axis parallel degree, torsion resistance detection side's rule are " plug method ".The method is: insert two plugs respectively in connecting rod two holes, play table and parallel, the torsion resistance value of acquisition two axially bored lines that pass through to convert with clock gauge.The shortcoming of this traditional detection method is: can not directly read detected value; The error link is many; Such as: the circularity of the quality of fit in plug and hole, two plugs itself and plain line parallel degree; The clock gauge indication of low precision etc. causes its accuracy of detection extremely low (about a few percent millimeter).And can not obtain a plurality of size detection results in a clamping, can not visual and accurate acquisition high measurement accuracy.
Have also that producer adopts the three-dimensional machines to carry out the axis parallel degree of connecting rod, torsion resistance detects, this Equipment Inspection precision height, but cost is high and it is very high that environmental baseline is required is not suitable for on-the-spot use of machining and can not popularization and application.
Pneumatic detection is the novel detection technique that China introduced from Japan " Tokyo Precision Co., Ltd " first totally in nineteen sixty-five.It adopts contactless relatively detection method, is the work media with pressurized air, and the measured piece change in size is converted to the variation of air mass flow and indicates its variable quantity by indicating instrument.Pneumatic detection technique only is single size detection when introducing, as: the aperture; The diameter of axle; Groove width etc.Utilizing this technology to be used for the single complicated project parameter detecting of connecting rod product and all items parametric synthesis detects and is in the feasibility exploration stage always.
The utility model content
The utility model is in order to solve weak point of the prior art, and accuracy of detection height, project is many, efficient is high, cost is low, environmental suitability the is strong pneumatic comprehensive detection device of connecting rod are provided.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the pneumatic comprehensive detection device of connecting rod, comprise base, base is provided with substrate, the substrate upper and lower is respectively equipped with testing agency and elevating mechanism, the elevating mechanism top is provided with supporting plate, and supporting plate and testing agency slide up and down and be connected.
Described testing agency comprises big gauge head and the little gauge head that is vertically set on the substrate, and big gauge head and little gauge head are cylindrical structural, and big gauge head and little gauge head circumferential surface are equipped with several nozzle sets.
Described base inside is hollow structure, and elevating mechanism comprises the lift cylinder that is arranged in the base, and the piston in the lift cylinder is connected with supporting plate by guidepost, guidepost and the orienting sleeve sliding connection that is installed on the substrate.
Described little gauge head bottom is connected by slide block and substrate horizontal slip, and the slide block inboard is connected with horizontal air cylinder, and the slide block outside is provided with axial nozzle.
Described big gauge head and little gauge head top are equipped with plastic mattress.
Adopt said structure, the beneficial effect that reaches is:
1, detected connecting rod is placed on the supporting plate by elevating mechanism and drives lifting, and the testing agency that is used with the float type air-gauge carries out the disposable comprehensive detection of item arguments such as the depth of parallelism of large and small bore dia and plain line parallel degree, two hole centre distances, two axially bored lines and torsion resistance to connecting rod.
2, big gauge head and little gauge head are the heart parts of device, belong to pneumatic sensing element, according to the different measuring principle many group nozzles are set on its periphery, each nozzle sets can once be delivered to the float type air-gauge that is connected to thereafter with measuring-signal separately simultaneously during measurement, just can once indicate tested item argument size numerical value.
3, adopt the piston promotion supporting plate in the lift cylinder to pick tested connecting rod arrival up and down or leave the measurement station, its rise and fall are controlled by foot valve (general part); Cooperate the positional precision with supporting plate of moving up and down that improves lift cylinder by guide cylinder and guidepost high-precision.
4, to be located at the little gauge head on the slide block be to lay facility and satisfy the centre distance measurement requirement for workpiece in the promotion of horizontal air cylinder.
5, the plastic mattress of installing on big gauge head and the little gauge head is that the tested connecting rod of protection is not collided with.
Adopt the pneumatic gauging method, big measuring head in the device and little measuring head change the variation that converts air mass flow to accessory size, indicate variable quantity by the float type air-gauge that is connected to thereafter.This measuring method is sayed the genus non-contact measurement from the way of contact, gapped between measurement face and measured, be difficult for scratching measured surface, this measuring method belongs to again and comparing and measuring, just can measure after the basic enlargement factor with standard component adjustment measuring system earlier during use, relatively obtain measurement result with standard component (size is transmitted benchmark, is equivalent to slip gauge).The utility model modern design, simple in structure, measuring accuracy is high (measure resultnat accuracy≤0.002 millimeter), maximum amplification: 〉=basic enlargement factor 120%, the indicating value mobility: less than scale division value of adapted amount instrument, operation is simple and reliable, the detection efficiency height, can be placed on the workshop and carry out the connecting rod detection of batch, environmental suitability is strong, can be widely used in domestic automobile, motorcycle, the cold machine industry of air-conditioning is for these row provide the reliable detection guarantee.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1.
Embodiment
As depicted in figs. 1 and 2, the pneumatic comprehensive detection device of connecting rod of the present utility model comprises base 1, base 1 is provided with substrate 2, substrate 2 upper and lowers are respectively equipped with testing agency and elevating mechanism, and the elevating mechanism top is provided with supporting plate 3, and supporting plate 3 slides up and down with pick-up unit and is connected.Testing agency comprises big gauge head 4 and the little gauge head 5 that is vertically set on the substrate 2, and big gauge head 4 and little gauge head 5 tops are respectively equipped with plastic mattress 13 and plastic mattress 14.Big gauge head 4 and little gauge head 5 are cylindrical structural, and big gauge head 4 and little gauge head 5 circumferential surfaces are respectively equipped with several nozzle sets 6 and nozzle sets 16.Base 1 inside is hollow structure, and elevating mechanism comprises the lift cylinder 7 that is arranged in the base 1, and the piston of lift cylinder 7 is in transmission connection by guidepost 8 and supporting plate 3, and guidepost 8 is by its outside sheathed guide cylinder 9 and base 1 and substrate 2 sliding connections.Little gauge head 4 is fixedly connected by slide block 10, and slide block 10 is connected with substrate 2 horizontal slips, and slide block 10 inboards are connected with horizontal air cylinder 11, and slide block 10 outsides are provided with axial nozzle 12.
First use standard connecting rod was placed on the supporting plate 3 before work was used, and carried out the basic enlargement factor of measuring system and calibrated in test specification, and each standard detection item argument is write down by the float type air-gauge.Carry out the detection of tested connecting rod 15 then.During measurement, step on foot valve, the piston that pressurized air promotes in the lift cylinder 7 upwards rises, guidepost 8 drives supporting plate 3 and rises to the top, be placed on tested connecting rod 15 on the supporting plate 3 also fixing, unclamp foot valve, piston in the lift cylinder 7, guidepost 8 drives supporting plate 3 and tested connecting rod 15 moves downward, two holes of tested connecting rod 15 are enclosed within respectively on big gauge head 4 and the little gauge head 5, and nozzle sets 6 and the diameter dimension in 16 pairs two holes of nozzle sets, the projects such as plain line parallel degree, the two axially bored line depth of parallelisms and torsion resistance in hole on big gauge head 4 and the little gauge head 5 detect.Operated valve is supplied gas to horizontal air cylinder 11, the little gauge head 5 that horizontal air cylinder 11 promotes to be loaded on the slide block 10 drives the axial nozzle 12 that tested connecting rod 15 relies on the centre distance measurement, and the gap between slide block 10 and the axial nozzle 12 is the centre distance (hole tolerance is ignored because of too small in the comparison of centre distance tolerance) of tested connecting rod 15.

Claims (5)

1. the pneumatic comprehensive detection device of connecting rod, it is characterized in that: comprise base, base is provided with substrate, and the substrate upper and lower is respectively equipped with testing agency and elevating mechanism, and the elevating mechanism top is provided with supporting plate, and supporting plate and testing agency slide up and down and are connected.
2. the pneumatic comprehensive detection device of connecting rod according to claim 1, it is characterized in that: described testing agency comprises big gauge head and the little gauge head that is vertically set on the substrate, big gauge head and little gauge head are cylindrical structural, and big gauge head and little gauge head circumferential surface are equipped with several nozzle sets.
3. the pneumatic comprehensive detection device of connecting rod according to claim 1 and 2, it is characterized in that: described base is inner to be hollow structure, elevating mechanism comprises the lift cylinder that is arranged in the base, piston in the lift cylinder is connected with supporting plate by guidepost, guidepost and the orienting sleeve sliding connection that is installed on the substrate.
4. the pneumatic comprehensive detection device of connecting rod according to claim 3 is characterized in that: described little gauge head bottom is connected by slide block and substrate horizontal slip, and the slide block inboard is connected with horizontal air cylinder, and the slide block outside is provided with axial nozzle.
5. the pneumatic comprehensive detection device of connecting rod according to claim 4 is characterized in that: described big gauge head and little gauge head top are equipped with plastic mattress.
CN2009202243981U 2009-10-26 2009-10-26 Pneumatic comprehensive detection device for connecting rods Expired - Lifetime CN201575801U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202243981U CN201575801U (en) 2009-10-26 2009-10-26 Pneumatic comprehensive detection device for connecting rods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202243981U CN201575801U (en) 2009-10-26 2009-10-26 Pneumatic comprehensive detection device for connecting rods

Publications (1)

Publication Number Publication Date
CN201575801U true CN201575801U (en) 2010-09-08

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104075672A (en) * 2013-03-29 2014-10-01 日本活塞环株式会社 Device and method for inspecting size of cylindrical object
CN104215166A (en) * 2013-05-31 2014-12-17 江苏龙城精锻有限公司 Intelligent four-channel pneumatic comprehensive measuring instrument
CN108645363A (en) * 2018-05-16 2018-10-12 大连大学 Layering section gauge connects the method for the large and small head bore axis operating center distance of component of rod category
CN110986838A (en) * 2019-11-19 2020-04-10 中国船舶重工集团公司第七0五研究所 Device and method for measuring equivalent diameter of explosion hole
CN113739743A (en) * 2021-09-07 2021-12-03 无锡万奈特测量设备有限公司 Automatic measuring machine for connecting rod
CN113739743B (zh) * 2021-09-07 2022-06-21 无锡万奈特测量设备有限公司 一种连杆自动测量机

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104075672A (en) * 2013-03-29 2014-10-01 日本活塞环株式会社 Device and method for inspecting size of cylindrical object
CN104075672B (en) * 2013-03-29 2017-11-07 日本活塞环株式会社 The dimensional inspection device of drum thing and the dimensional gaughing method of drum thing
CN104215166A (en) * 2013-05-31 2014-12-17 江苏龙城精锻有限公司 Intelligent four-channel pneumatic comprehensive measuring instrument
CN104215166B (en) * 2013-05-31 2016-12-28 江苏龙城精锻有限公司 A kind of intelligence pneumatic comprehensive amount instrument of four-way
CN108645363A (en) * 2018-05-16 2018-10-12 大连大学 Layering section gauge connects the method for the large and small head bore axis operating center distance of component of rod category
CN110986838A (en) * 2019-11-19 2020-04-10 中国船舶重工集团公司第七0五研究所 Device and method for measuring equivalent diameter of explosion hole
CN110986838B (en) * 2019-11-19 2022-01-18 中国船舶重工集团公司第七0五研究所 Device and method for measuring equivalent diameter of explosion hole
CN113739743A (en) * 2021-09-07 2021-12-03 无锡万奈特测量设备有限公司 Automatic measuring machine for connecting rod
CN113739743B (zh) * 2021-09-07 2022-06-21 无锡万奈特测量设备有限公司 一种连杆自动测量机

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Granted publication date: 20100908

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