CN102692168B - Device and method for detecting position degree of valve guide pipe holes of cylinder cover of engine - Google Patents

Device and method for detecting position degree of valve guide pipe holes of cylinder cover of engine Download PDF

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Publication number
CN102692168B
CN102692168B CN201210183517.XA CN201210183517A CN102692168B CN 102692168 B CN102692168 B CN 102692168B CN 201210183517 A CN201210183517 A CN 201210183517A CN 102692168 B CN102692168 B CN 102692168B
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CN
China
Prior art keywords
detection
cylinder cap
valve guide
template
hole
Prior art date
Application number
CN201210183517.XA
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Chinese (zh)
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CN102692168A (en
Inventor
郑志勋
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芜湖永裕汽车工业有限公司
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Priority to CN201210183517.XA priority Critical patent/CN102692168B/en
Publication of CN102692168A publication Critical patent/CN102692168A/en
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Publication of CN102692168B publication Critical patent/CN102692168B/en

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Abstract

The invention discloses a device for detecting the position degree of valve guide pipe holes of a cylinder cover of an engine. The device comprises a detection mandrel and a detection template, wherein detection holes of which the quantity is the same as that of the valve guide pipe holes on the cylinder cover and which are aligned with the valve guide pipe holes on the cylinder cover and are used for inserting the detection mandrel are formed in the detection template; and the detection template is positioned on the bottom surface of the cylinder cover through a positioning mechanism during detection. Compared with the prior art, the invention has the advantages that the device has a simple structure and is convenient to operate; unqualified hole positions can be quickly and simply detected by the device; compared with the traditional detection method, the method has the advantages that the detection accuracy is high, the accumulated error generated during detection is reduced, and the detection efficiency is also high; and in addition, by the detection method for the device, the process is simple, the method can be conveniently and efficiently operated, employees who detect products can operate the device without training, and the detection efficiency is high.

Description

A kind of engine cylinder cap air valve guide hole position degree detection apparatus and detection method thereof

Technical field

The present invention relates to a kind of pick-up unit, specifically, the present invention relates to a kind of engine cylinder cap air valve guide hole position degree detection apparatus and detection method thereof.

Background technology

At present, in automobile engine cylinder head machining, valve guide hole many (twin cam shaft cylinder head is more), the various errors adding man-hour can make the position deviation in individual conduits hole larger, cause positional precision when to assemble valve guide rod on cylinder cap too low, part guide rod is even caused to have impact on the situation of the efficiency of internal combustion engine because error makes air valve tightness poor, so need to detect the position degree of guide hole.Cylinder cap air valve catheter hole position detection method traditionally only detects the position degree of single guide hole, and whether the cumulative errors produced when cannot ensure the detection between multiple guide hole meets the requirement of installing valve guide rod exact position, so how reducing this cumulative errors is a very large difficult problem.

Summary of the invention

Technical matters to be solved by this invention is to provide a kind of engine cylinder cap air valve guide hole position degree detection apparatus, the object of the cumulative errors produced during to reach and to reduce conduit hole position detection.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of engine cylinder cap air valve guide hole position degree detection apparatus, comprise detecting core shaft and detection template, detection template is provided with the detect aperture that the described detecting core shaft of confession that is identical with the valve guide hole number on cylinder cap and aligned in position inserts, when detecting, detection template is positioned on the bottom surface of cylinder cap by detent mechanism.

Described detent mechanism comprises two register pins, the location division of one of them register pin is cylindrical, the location division of another register pin is rhombus, is respectively provided with a pilot hole accordingly at the two ends of described detection template, and in the bottom surface of described cylinder cap, choosing has the hole with register pin adaptation.

Lining is equipped with in described detect aperture and pilot hole.

Another technical matters to be solved by this invention is to provide a kind of detection method of engine cylinder cap air valve guide hole position degree detection apparatus, and the step of this detection method is as follows:

When detecting, first cylinder cap to be checked being inverted is placed in detection platform, the bottom surface of cylinder cap is arranged upward, detection template is placed on the bottom surface of cylinder cap, and positioned by detent mechanism, make the valve guide hole aligned in position of detect aperture on detection template and cylinder cover bottom surface, afterwards detecting core shaft is inserted in each detect aperture successively and position degree detection is carried out to valve guide hole.

In above-mentioned steps, two register pins are comprised to the described detent mechanism that described detection template positions, the location division of one of them register pin is cylindrical, the location division of another register pin is rhombus, a pilot hole is respectively provided with accordingly at the two ends of detection template, in the bottom surface of described cylinder cap, choosing has the hole with register pin adaptation, when locating, detection template is placed on the bottom surface of cylinder cap, insert two register pins in pilot hole, and suitably regulate the position of cylinder cap to make the valve guide bushing hole site Accurate align of detect aperture and cylinder cover bottom surface as required.

The present invention adopts technique scheme, compared with prior art, this structure of the detecting device is simple, easy to operate, as long as special detecting core shaft is inserted in detect aperture corresponding on detection template during each detection, the detect aperture of the detection template of this pick-up unit is arranged to the form matched with cylinder cover bottom surface valve guide bushing hole site, and this detection template is enclosed within the cylinder bottom surface consistent with valve guide hole machining benchmark, only need pick-up unit be enclosed within cylinder head bottom surface to be checked during detection, then successively special detecting core shaft being inserted into each needs the valve guide hole detected to detect, if there is position, underproof hole, this device just can quickly and easily detect, relative to traditional detection method, not only accuracy of detection is high, the cumulative errors produced when reducing detection, and detection efficiency is also high, in addition, adopt the detection method process of this device simple, efficiently easy to operate, make the employee of this product of detection get final product operation on duty without the need to training especially, and detection efficiency is high.

Accompanying drawing explanation

Fig. 1 is the structural representation of pick-up unit of the present invention;

Fig. 2 is the structural representation of the detection template of pick-up unit of the present invention;

Mark in above-mentioned figure is: 1, Cylindrical locating pins; 2, detection template; 3, detect aperture lining; 4, detecting core shaft; 5, pilot hole lining; 6, diamond positioning pin; 7, detect aperture; 8, pilot hole.

Embodiment

A kind of engine cylinder cap air valve guide hole of the present invention position degree detection apparatus, comprises special detecting core shaft 4, detecting core shaft 4 with use in prior art identical.In order to solve problems of the prior art, as depicted in figs. 1 and 2, this pick-up unit also comprises detection template 2, detection template 2 is long strip-board shape, detection template 2 is provided with the detect aperture 7 inserted for detecting core shaft 4 that is identical with the valve guide hole number on cylinder cap and aligned in position, when detecting, detection template 2 is positioned on the bottom surface of cylinder cap by detent mechanism, when detecting, cylinder cap is inverted to be placed in detection platform, arranged upward the bottom surface of cylinder cap.Compared with prior art, this structure of the detecting device is simple, easy to operate, as long as special detecting core shaft 4 is inserted in detect aperture 7 corresponding on detection template 2 during each detection, the detect aperture 7 of the detection template 2 of this pick-up unit is arranged to the form matched with cylinder cover bottom surface valve guide bushing hole site, and this detection template 2 is enclosed within the cylinder bottom surface consistent with valve guide hole machining benchmark, only need pick-up unit be enclosed within cylinder head bottom surface to be checked during detection, then successively special detecting core shaft 4 being inserted into each needs the valve guide hole detected to detect, if there is position, underproof hole, this device just can quickly and easily detect, relative to traditional detection method, not only accuracy of detection is high, the cumulative errors produced when reducing detection, and detection efficiency is also high.

As shown in Figure 1, two register pins are comprised to the detent mechanism that detection template 2 positions, the location division of one of them register pin is cylindrical, be Cylindrical locating pins 1, the location division of another register pin is rhombus, be diamond positioning pin 6, be respectively provided with a pilot hole 8 accordingly at the two ends of detection template 2, in the bottom surface of cylinder cap, choosing has the hole with register pin adaptation.Adopting the locator meams of a straight pin one rhombus pin, when locating, using register pin to be positioned in cylinder cover bottom surface by detection template 2, and suitably regulate the detect aperture 7 on detection template 2 and valve guide hole accurate fit as required, to improve the accuracy of detection.

As shown in Figure 1, lining is equipped with in detect aperture 7 and pilot hole 8, i.e. pilot hole lining 5 and detect aperture lining 3 as illustrated in the drawing, can change in time when liner wear amount is excessive, causes adverse effect to avoid repeated detection and to install the wearing and tearing produced in location to testing result.

The present invention also disclosed a kind of detection method of engine cylinder cap air valve guide hole position degree detection apparatus, and the step of this detection method is as follows:

When detecting, first cylinder cap to be checked being inverted is placed in detection platform, the bottom surface of cylinder cap is arranged upward, detection template 2 is placed on the bottom surface of cylinder cap, and positioned by detent mechanism, make the detect aperture 7 on detection template 2 and the valve guide hole aligned in position of cylinder cover bottom surface, afterwards detecting core shaft 4 is inserted in each detect aperture 7 successively and position degree detection is carried out to valve guide hole.

In above-mentioned steps, two register pins are comprised to the detent mechanism that detection template 2 positions, the location division of one of them register pin is cylindrical, the location division of another register pin is rhombus, a pilot hole 8 is respectively provided with accordingly at the two ends of detection template 2, in the bottom surface of cylinder cap, choosing has the hole with register pin adaptation, when locating, detection template 2 is placed on the bottom surface of cylinder cap, insert two register pins in pilot hole 8, and suitably regulate the position of cylinder cap to make the valve guide bushing hole site Accurate align of detect aperture 7 and cylinder cover bottom surface as required.

Above-mentioned detection method process is simple, efficiently easy to operate, make the employee of this product of detection get final product operation on duty without the need to training especially, and detection efficiency is high.

Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.

Claims (5)

1. an engine cylinder cap air valve guide hole position degree detection apparatus, comprise detecting core shaft (4), it is characterized in that: also comprise detection template (2), detection template (2) is provided with the detect aperture (7) that the described detecting core shaft of confession that is identical with the valve guide hole number on cylinder cap and aligned in position (4) is inserted, when detecting, detection template (2) is positioned on the bottom surface of cylinder cap by detent mechanism, this detent mechanism comprises two register pins, a pilot hole (8) is respectively provided with accordingly at the two ends of described detection template (2), cylinder cap is inverted be placed in detection platform when detecting, and the bottom surface making cylinder cap upward, by selecting in cylinder cover bottom surface to position detection template (2) with the hole of register pin adaptation, lining is equipped with in described detect aperture (7) and pilot hole (8).
2. engine cylinder cap air valve guide hole position degree detection apparatus according to claim 1, is characterized in that: two register pins of described detent mechanism, and the location division of one of them register pin is cylindrical, and the location division of another register pin is rhombus.
3. engine cylinder cap air valve guide hole position degree detection apparatus according to claim 2, is characterized in that: in described detect aperture (7) and pilot hole (8), be equipped with lining.
4. the detection method of engine cylinder cap air valve guide hole position degree detection apparatus according to claim 1, is characterized in that: the step of this detection method is as follows:
When detecting, first cylinder cap to be checked being inverted is placed in detection platform, the bottom surface of cylinder cap is arranged upward, detection template (2) is placed on the bottom surface of cylinder cap, and positioned by detent mechanism, make the detect aperture (7) on detection template (2) and the valve guide hole aligned in position of cylinder cover bottom surface, afterwards detecting core shaft (4) is inserted in each detect aperture (7) successively and position degree detection is carried out to valve guide hole.
5. the detection method of engine cylinder cap air valve guide hole position degree detection apparatus according to claim 4, it is characterized in that: two register pins are comprised to the described detent mechanism that described detection template (2) positions, the location division of one of them register pin is cylindrical, the location division of another register pin is rhombus, a pilot hole (8) is respectively provided with accordingly at the two ends of detection template (2), in the bottom surface of described cylinder cap, choosing has the hole with register pin adaptation, when locating, detection template (2) is placed on the bottom surface of cylinder cap, insert two register pins in pilot hole (8), and suitably regulate the position of cylinder cap to make the valve guide bushing hole site Accurate align of detect aperture (7) and cylinder cover bottom surface as required.
CN201210183517.XA 2012-06-06 2012-06-06 Device and method for detecting position degree of valve guide pipe holes of cylinder cover of engine CN102692168B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210183517.XA CN102692168B (en) 2012-06-06 2012-06-06 Device and method for detecting position degree of valve guide pipe holes of cylinder cover of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210183517.XA CN102692168B (en) 2012-06-06 2012-06-06 Device and method for detecting position degree of valve guide pipe holes of cylinder cover of engine

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CN102692168B true CN102692168B (en) 2014-12-17

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CN102997826A (en) * 2012-11-16 2013-03-27 无锡麦铁精密机械制造有限公司 Hole coaxiality detecting tool
CN102967210B (en) * 2012-11-18 2016-05-25 无锡麦铁精密机械制造有限公司 Crankshaft end-face detecting tool for position degree of connection hole
CN104654961B (en) * 2013-11-15 2017-06-30 芜湖永裕汽车工业有限公司 A kind of engine cylinder cover lubricating oil pump mounting surface position degree detection method
CN103968735A (en) * 2014-05-26 2014-08-06 苏州博讯仪器有限公司 Detection device for detecting positioning cone body
CN105571474A (en) * 2014-10-16 2016-05-11 五冶集团上海有限公司 Hole coaxiality inspection method
CN104406480A (en) * 2014-11-18 2015-03-11 成都发动机(集团)有限公司 Method and measuring tool for detecting location degree of densely distributed holes
CN105066814A (en) * 2015-08-10 2015-11-18 广西玉柴机器股份有限公司 Method for detecting relative position of positioning pinhole and workblank hole of cylinder cover
CN105241341B (en) * 2015-11-10 2019-02-15 长春捷柯汽车工艺装备有限公司 A kind of passenger car soldering member intelligent measurement platform and its application method
CN109238074B (en) * 2018-10-30 2020-04-10 广西玉柴机器股份有限公司 Rotary cylinder cover fuel hole position degree measuring device and using method thereof
CN109631714A (en) * 2018-12-17 2019-04-16 中国航发动力股份有限公司 A kind of porous series position degree detection method

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CN101094588A (en) * 2006-06-21 2007-12-26 深圳富泰宏精密工业有限公司 Test clamps
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