CN102661695A - Device and method for detecting positions of threaded holes on top surface of engine cylinder head - Google Patents

Device and method for detecting positions of threaded holes on top surface of engine cylinder head Download PDF

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Publication number
CN102661695A
CN102661695A CN2012101423305A CN201210142330A CN102661695A CN 102661695 A CN102661695 A CN 102661695A CN 2012101423305 A CN2012101423305 A CN 2012101423305A CN 201210142330 A CN201210142330 A CN 201210142330A CN 102661695 A CN102661695 A CN 102661695A
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CN
China
Prior art keywords
panel
detection
hole
cylinder
unit
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Application number
CN2012101423305A
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Chinese (zh)
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CN102661695B (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 CN201210142330.5A priority Critical patent/CN102661695B/en
Publication of CN102661695A publication Critical patent/CN102661695A/en
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Publication of CN102661695B publication Critical patent/CN102661695B/en

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Abstract

The invention discloses a device and a method for detecting positions of threaded holes on a top surface of an engine cylinder head. The detection device comprises a thread plug gauge, a panel, a bottom plate for accommodating the cylinder head, a positioning mechanism which is arranged on the bottom plate and is used for positioning the cylinder head, and a bracket for supporting the panel, wherein detection holes are formed in the panel; the panel is supported on the top surface of the bracket and is parallel to the top surface of the cylinder head; the number of the detection holes in the panel is at least the same as that of threaded holes on the top surface of the cylinder head; and the detection holes in the panel are respectively aligned to threaded holes. Compared with the prior art, the detection device is simple in structure and convenient to operate, and the detection efficiency is obviously improved; by the device, an accumulated error is avoided, and the detection accuracy of the positions of the threaded holes on the top surface of the engine cylinder head is improved. In addition, the detection method using the device is simple and convenient and efficient in operation, so that a user who detects the products can be on duty without training.

Description

The screw thread hole location pick-up unit and the detection method thereof of engine cylinder hd top face

Technical field

The present invention relates to a kind of screw thread hole location pick-up unit and detection method thereof of engine cylinder hd top face.

Background technology

At present, in automobile engine cylinder head machining, the end face threaded hole is many, and the various errors that add man-hour can make the position deviation in individual threads hole bigger, cause the cylinder cap assembly precision low excessively, even the situation that the part screw can't be installed occurs.The detection of traditional top surface of cylinder cover screw thread hole location is the position of once only detecting single threaded hole; Not only detection efficiency is low; Also be easy to generate bigger cumulative errors; And can't guarantee whether the cumulative errors that detects generation satisfies installation requirement, and the existence of cumulative errors can make the bearing seat of installing on the top surface of cylinder cover that very big position deviation is arranged, are very big difficult problems so how to reduce the generation of this cumulative errors.

Summary of the invention

Technical matters to be solved by this invention provides a kind of screw thread hole location pick-up unit of engine cylinder hd top face, to improve the detection efficiency that the screw thread hole location detects.

In order to solve the problems of the technologies described above; The technical scheme that the present invention adopted is: a kind of screw thread hole location pick-up unit of engine cylinder hd top face; Top surface of cylinder cover is the dip plane, and pick-up unit comprises plug thread gauge and panel, has the detection hole on the panel; Said pick-up unit also comprises the base plate that is used to place cylinder cap, be located at detent mechanism that cylinder cap is positioned on the base plate and the support that supports said panel; Panel is for being on the end face that parallel state is supported on support with top surface of cylinder cover, and the number in the detection hole on the panel will equate at least also to align with each threaded hole respectively in the detection hole on the panel with the threaded hole number of top surface of cylinder cover.

Said detent mechanism comprises spacer pin and the register pin that is located on the said base plate, and the bottom surface pad of cylinder cap is on spacer pin, and the end face of spacer pin is the plane; In the bottom surface of cylinder cap the hole adaptive with register pin arranged; Register pin has two, and one of them register pin is a straight pin, and another register pin is the rhombus pin.

Said panel positions through two taper bolts on the end face that is located at said support, on panel, is provided with the pilot hole adaptive with this taper bolt.

Said taper bolt and said support be for being threaded, taper bolt and through nut and tightly on support.

Said support is provided with two, lays respectively at the both sides of said cylinder cap, and the end face of support is the dip plane that has identical inclination angle with top surface of cylinder cover.

Said support is connected with the reinforcement gusset that is fixed on the said base plate.

Another technical matters to be solved by this invention provides a kind of detection method of screw thread hole location pick-up unit of engine cylinder hd top face; It is characterized in that: the step of said detection method is following: put pick-up unit; Engine cylinder cover is placed on the detent mechanism of base plate and locatees; Then with panel for being on the end face that parallel state is supported on support with top surface of cylinder cover; Alignd with each threaded hole of top surface of cylinder cover respectively in detection hole on the panel, use plug thread gauge to insert successively in the detection hole of panel at last corresponding each threaded hole that need detect.

In above-mentioned steps, said cylinder cap positions through the detent mechanism that is located on the base plate, and this detent mechanism comprises spacer pin and the register pin that is located on the base plate; The bottom surface pad of cylinder cap is on spacer pin, and the end face of spacer pin is the plane, in the bottom surface of cylinder cap the hole adaptive with register pin is arranged; Register pin has two, and one of them is a straight pin, and another is the rhombus pin; When the location; On spacer pin, and two register pins are inserted in the corresponding hole of cylinder cap bottom surfaces on the bottom surface pad of cylinder cap, and the position of suitably regulating cylinder cap is as required accurately located cylinder cap.

In above-mentioned steps, said panel is accurately to locate through two taper bolts on the end face that is located at said support, when installation panel, being enclosed within on two taper bolts with the adaptive pilot hole of this taper bolt of being provided with on the panel is got final product.

Adopt technique scheme, compared with prior art, this pick-up unit is simple in structure; Easy to operate, through the detection hole of setting on panel, be inserted into the position degree that can detect threaded hole on the panel in the corresponding hole to plug thread gauge when needing only each the detection with the threaded hole same number of engine cylinder hd top face; Detection efficiency obviously improves; And, adopt this device also just to avoid the generation of cumulative errors owing to be not that one by one threaded hole detects separately, improved the accuracy of detection of top surface of cylinder cover screw thread hole location; In addition; Adopt this Device Testing procedure simple, easy to operate efficient, making the employee who detects this product need not training especially can operation on duty.

Description of drawings

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

Mark among the above-mentioned figure is: 1, panel; 2, support; 3, cylinder cap; 4, strengthen gusset; 5, spacer pin; 6, base plate; 7, register pin; 8, nut; 9, taper bolt; 10, plug thread gauge.

Embodiment

As shown in Figure 1; The screw thread hole location pick-up unit of a kind of engine cylinder hd top face of the present invention; The end face of this engine cylinder cover 3 is the dip plane, and the end face threaded hole is used for fixing the bearing seat of camshaft, and pick-up unit comprises plug thread gauge 10 and panel 1; Have the detection hole of detecting usefulness on the panel 1, plug thread gauge 10 is identical with prior art.In order to solve in the prior art with the problem that exists, improve the detection efficiency of pick-up unit, this pick-up unit has been done following improvement.

As shown in Figure 1; This pick-up unit also comprises the base plate 6 that is used to place cylinder cap 3, be located at the detent mechanism that cylinder cap 3 is positioned and the support 2 of support panel 1 on the base plate 6; Panel 1 is for being on the end face that parallel state is supported on support 2 with cylinder cap 3 end faces; The number in the detection hole on the panel 1 equates with the threaded hole number of cylinder cap 3 end faces also to align with each threaded hole respectively in the detection hole on the panel 1.Compared with prior art; This pick-up unit is simple in structure; Easy to operate, through the detection hole of setting on panel 1, be inserted into the position degree that can detect threaded hole on the panel 1 in the corresponding hole to plug thread gauge 10 when needing only each the detection with the threaded hole same number of engine cylinder cover 3 end faces; Detection efficiency obviously improves; And, adopt this device also just to avoid the generation of cumulative errors owing to be not that one by one threaded hole detects separately, improved the accuracy of detection of cylinder cap 3 end face screw thread hole locations.

Embodiment 1

As shown in Figure 1, the detent mechanism of pick-up unit comprises the spacer pin 5 and register pin 7 that is located on the base plate 6, and the bottom surface pad of cylinder cap 3 is on spacer pin 5; Spacer pin 5 is provided with four, is arranged in the place, four angles of cylinder cap 3, and the end face of spacer pin 5 is the plane; And flatness is very little; Through this design of spacer pin 5, form stable support, to improve accuracy of detection to cylinder cap 3.In addition, choosing has the hole adaptive with register pin 7 in the bottom surface of cylinder cap 3, and register pin 7 is provided with two that arrange along a wherein side of cylinder cap 3; One of them register pin 7 is a straight pin; Another register pin 7 rhombus pins adopt the locator meams of a straight pin one rhombus pin, when the location; Register pin 7 is inserted in the corresponding hole of cylinder cap 3 bottom surfaces; And the position of suitably regulating cylinder cap 3 as required can make cylinder cap 3 realize accurately location, not only is convenient to the easy to adjust of cylinder cap 3 positions, also is convenient to improve the accuracy that cylinder cap 3 end face screw thread hole locations detect.

Embodiment 2

As shown in Figure 1; The panel 1 of pick-up unit can position through two taper bolts 9 on the end face that is located at support 2; On panel 1, be provided with the pilot hole adaptive with this taper bolt 9; Taper bolt 9 can play the effect of wear-compensating, and panel 1 is accurately located by these two taper bolts 9, can improve the precision of detection.When installation panel 1, being enclosed within on two taper bolts 9 with these taper bolt 9 adaptive pilot holes of setting on the panel 1 got final product.The technology contents of present embodiment is applicable to the pick-up unit of above-mentioned arbitrary structure.

Embodiment 3

As shown in Figure 1, on the basis of embodiment 2, the taper bolt 9 on the support 2 and support 2 be for being threaded, and taper bolt 9 and through nut 8 and tightly on support 2 when taper bolt 9 excessive wears after, is unscrewed nut 8 and can be pulled down taper bolt 9 like this, changes conveniently.

Embodiment 4

As shown in Figure 1; The support 2 of pick-up unit can parallelly be provided with two, lays respectively at the both sides of cylinder cap 3, and support 2 is placed on the base plate 6; Support 2 is also fixed through connected reinforcement gusset 4; To guarantee the stable of support 2, further improve accuracy of detection, strengthen gusset 4 and pass through bolted on base plate 6.As shown in Figure 1, the end face of support 2 can be for having the dip plane at identical inclination angle with cylinder cap 3 end faces, and taper bolt 9 vertically is located on the end face of support 2; Installation and the setting of being convenient to panel 1 is set like this; Make between panel 1 and cylinder cap 3 end faces fully parallelly, the convenient detection improved accuracy of detection.The technology contents of present embodiment is applicable to the pick-up unit of above-mentioned arbitrary structure.

The present invention has also announced the detection method of the screw thread hole location pick-up unit of engine cylinder hd top face as described above; The step of this detection method is following: put pick-up unit; Engine cylinder cover 3 is placed on the detent mechanism of base plate 6 and locatees; Then with panel 1 for being on the end face that parallel state is supported on support 2 with cylinder cap 3 end faces; Alignd with each threaded hole of cylinder cap 3 end faces respectively in detection hole on the panel 1, use plug thread gauge 10 to insert successively in the detection hole of panel 1 at last corresponding each threaded hole that need detect.

In above-mentioned steps, said cylinder cap 3 positions through the detent mechanism that is located on the base plate 6, and this detent mechanism comprises the spacer pin 5 and register pin 7 that is located on the base plate 6; The bottom surface pad of cylinder cap 3 is on spacer pin 5, and the end face of spacer pin 5 is the plane, and the hole adaptive with register pin 7 arranged in the bottom surface of cylinder cap 3; Register pin 7 has two, and one of them is a straight pin, and another is the rhombus pin; When the location; On spacer pin 5, and two register pins 7 are inserted in the corresponding hole of cylinder caps 3 bottom surfaces on the bottom surface pad of cylinder cap 3, and the position of suitably regulating cylinder cap 3 is as required accurately located cylinder cap 3.

In above-mentioned steps, panel 1 is accurately to locate through two taper bolts 9 on the end face that is located at support 2, when installation panel 1, being enclosed within on two taper bolts 9 with these taper bolt 9 adaptive pilot holes of setting on the panel 1 is got final product.

Above-mentioned detection method process is simple, and is easy to operate efficient, and making the employee who detects this product need not training especially can operation on duty.

Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; Or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.

Claims (9)

1. the screw thread hole location pick-up unit of an engine cylinder hd top face; Top surface of cylinder cover is the dip plane; Pick-up unit comprises plug thread gauge and panel; Have the detection hole on the panel, it is characterized in that: said pick-up unit also comprises the base plate that is used to place cylinder cap, be located at detent mechanism that cylinder cap is positioned on the base plate and the support that supports said panel, and panel is for being on the end face that parallel state is supported on support with top surface of cylinder cover; The number in the detection hole on the panel will equate at least also to align with each threaded hole respectively in the detection hole on the panel with the threaded hole number of top surface of cylinder cover.
2. the screw thread hole location pick-up unit of engine cylinder hd top face according to claim 1; It is characterized in that: said detent mechanism comprises spacer pin and the register pin that is located on the said base plate, and the bottom surface pad of cylinder cap is on spacer pin, and the end face of spacer pin is the plane; In the bottom surface of cylinder cap the hole adaptive with register pin arranged; Register pin has two, and one of them register pin is a straight pin, and another register pin is the rhombus pin.
3. the screw thread hole location pick-up unit of engine cylinder hd top face according to claim 1 and 2; It is characterized in that: said panel positions through two taper bolts on the end face that is located at said support, on panel, is provided with the pilot hole adaptive with this taper bolt.
4. the screw thread hole location pick-up unit of engine cylinder hd top face according to claim 3 is characterized in that: said taper bolt and said support be for being threaded, taper bolt and through nut and tightly on support.
5. the screw thread hole location pick-up unit of engine cylinder hd top face according to claim 4, it is characterized in that: said support is provided with two, lays respectively at the both sides of said cylinder cap, and the end face of support is the dip plane that has identical inclination angle with top surface of cylinder cover.
6. the screw thread hole location pick-up unit of engine cylinder hd top face according to claim 5 is characterized in that: said support is connected with the reinforcement gusset that is fixed on the said base plate.
7. the detection method of the screw thread hole location pick-up unit of an engine cylinder hd top face according to claim 1; It is characterized in that: the step of said detection method is following: put pick-up unit; Engine cylinder cover is placed on the detent mechanism of base plate and locatees; Then with panel for being on the end face that parallel state is supported on support with top surface of cylinder cover; Alignd with each threaded hole of top surface of cylinder cover respectively in detection hole on the panel, use plug thread gauge to insert successively in the detection hole of panel at last corresponding each threaded hole that need detect.
8. the detection method of the screw thread hole location pick-up unit of engine cylinder hd top face according to claim 7, it is characterized in that: said cylinder cap positions through the detent mechanism that is located on the base plate, and this detent mechanism comprises spacer pin and the register pin that is located on the base plate; The bottom surface pad of cylinder cap is on spacer pin, and the end face of spacer pin is the plane, in the bottom surface of cylinder cap the hole adaptive with register pin is arranged; Register pin has two, and one of them is a straight pin, and another is the rhombus pin; When the location; On spacer pin, and two register pins are inserted in the corresponding hole of cylinder cap bottom surfaces on the bottom surface pad of cylinder cap, and the position of suitably regulating cylinder cap is as required accurately located cylinder cap.
9. according to the detection method of the screw thread hole location pick-up unit of claim 7 or 8 described engine cylinder hd top face; It is characterized in that: said panel is accurately to locate through two taper bolts on the end face that is located at said support; When installation panel, being enclosed within on two taper bolts with the adaptive pilot hole of this taper bolt of being provided with on the panel got final product.
CN201210142330.5A 2012-05-10 2012-05-10 The threaded hole position pick-up unit of engine cylinder hd top face and detection method thereof CN102661695B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210142330.5A CN102661695B (en) 2012-05-10 2012-05-10 The threaded hole position pick-up unit of engine cylinder hd top face and detection method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210142330.5A CN102661695B (en) 2012-05-10 2012-05-10 The threaded hole position pick-up unit of engine cylinder hd top face and detection method thereof

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CN102661695B CN102661695B (en) 2016-01-06

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223608A (en) * 2013-04-27 2013-07-31 芜湖永裕汽车工业有限公司 Finish-milling clamp suitable for top surface of inclined cylinder head
CN103743320A (en) * 2013-12-10 2014-04-23 东风朝阳朝柴动力有限公司 Device and method for detecting distance from engine body inclined transmission face to engine body bottom face
CN103994706A (en) * 2014-06-12 2014-08-20 安徽江淮汽车股份有限公司 Hole location degree testing tool for plate
CN104654961A (en) * 2013-11-15 2015-05-27 芜湖永裕汽车工业有限公司 Engine cylinder cover oil pump mounting surface position degree detection method
CN105910519A (en) * 2016-06-29 2016-08-31 上海华东计算技术研究所实验工厂 Detection assembly specially used for location degree of mounting hole of irregular part
CN105953691A (en) * 2016-04-21 2016-09-21 重庆江增船舶重工有限公司 Detection device of workpiece with end face teeth workpiece and detection method thereof
CN104634215B (en) * 2013-11-15 2017-12-15 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 apparatus
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201392165Y (en) * 2009-03-27 2010-01-27 苏州市职业大学 Position accuracy gage for guide wheel end surface hole
CN201754075U (en) * 2010-07-30 2011-03-02 广东鸿特精密技术股份有限公司 Comprehensive detecting device capable of detecting position depth distance
CN201837329U (en) * 2010-09-30 2011-05-18 南阳飞龙汽车零部件有限公司 Tool for checking positions of holes of exhaust manifold boost flange
CN202195778U (en) * 2011-08-17 2012-04-18 勤威(天津)工业有限公司 Special check fixture used for measuring position of exhaust pipe hole of automobile
CN202614125U (en) * 2012-05-10 2012-12-19 芜湖永裕汽车工业有限公司 Threaded hole position detecting device of engine cylinder cover top face

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201392165Y (en) * 2009-03-27 2010-01-27 苏州市职业大学 Position accuracy gage for guide wheel end surface hole
CN201754075U (en) * 2010-07-30 2011-03-02 广东鸿特精密技术股份有限公司 Comprehensive detecting device capable of detecting position depth distance
CN201837329U (en) * 2010-09-30 2011-05-18 南阳飞龙汽车零部件有限公司 Tool for checking positions of holes of exhaust manifold boost flange
CN202195778U (en) * 2011-08-17 2012-04-18 勤威(天津)工业有限公司 Special check fixture used for measuring position of exhaust pipe hole of automobile
CN202614125U (en) * 2012-05-10 2012-12-19 芜湖永裕汽车工业有限公司 Threaded hole position detecting device of engine cylinder cover top face

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
崔丽娟: "一种新型孔位置度综合量规", 《砖瓦》 *
崔静: "孔组位置度综合检具的设计及使用", 《机械工业标准化与质量》 *
李舒燕: "孔组位置度检测装置的设计及应用", 《武汉船舶职业技术学院学报》 *
梁爱琴等: "孔位置度综合量规的设计方法研究", 《河南农业大学学报》 *
熊文伟: "汽车制动器底板孔位置度综合量规设计与应用", 《机械工程师》 *
田瑞娟等: "孔位置度综合量规设计计算的一种新方法", 《工具技术》 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223608A (en) * 2013-04-27 2013-07-31 芜湖永裕汽车工业有限公司 Finish-milling clamp suitable for top surface of inclined cylinder head
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
CN104634215B (en) * 2013-11-15 2017-12-15 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 apparatus
CN104654961A (en) * 2013-11-15 2015-05-27 芜湖永裕汽车工业有限公司 Engine cylinder cover oil pump mounting surface position degree detection method
CN103743320A (en) * 2013-12-10 2014-04-23 东风朝阳朝柴动力有限公司 Device and method for detecting distance from engine body inclined transmission face to engine body bottom face
CN103994706B (en) * 2014-06-12 2016-08-17 安徽江淮汽车股份有限公司 The hole position check tool of plate
CN103994706A (en) * 2014-06-12 2014-08-20 安徽江淮汽车股份有限公司 Hole location degree testing tool for plate
CN105953691A (en) * 2016-04-21 2016-09-21 重庆江增船舶重工有限公司 Detection device of workpiece with end face teeth workpiece and detection method thereof
CN105953691B (en) * 2016-04-21 2018-05-25 重庆江增船舶重工有限公司 Detection device and its detection method with end-tooth workpiece
CN105910519A (en) * 2016-06-29 2016-08-31 上海华东计算技术研究所实验工厂 Detection assembly specially used for location degree of mounting hole of irregular part
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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