CN201876225U - Depth dimension detecting rod for inclined hole of cylinder cover of engine - Google Patents
Depth dimension detecting rod for inclined hole of cylinder cover of engine Download PDFInfo
- Publication number
- CN201876225U CN201876225U CN 201020602375 CN201020602375U CN201876225U CN 201876225 U CN201876225 U CN 201876225U CN 201020602375 CN201020602375 CN 201020602375 CN 201020602375 U CN201020602375 U CN 201020602375U CN 201876225 U CN201876225 U CN 201876225U
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- detection
- rod
- guide rod
- cylinder cover
- depth
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Abstract
The utility model discloses a depth dimension detecting rod for an inclined hole of a cylinder cover of an engine. The detecting rod comprises a detection rod and a guide rod, wherein the guide rod is provided with an inclined depth detecting segment, and a reference table-board for detection is arranged between the inclined depth detecting segment and the guide rod and perpendicular to the axial line of the guide rod; and the upper end of the inclined hole depth detecting segment is provided with a spherical crown head for the detection rod, the spherical center of the spherical crown head for the detection rod is arranged on the axial line of the guide rod, and the distance from the spherical center to the axial line of the reference table-board for detection is the depth dimension of the inclined hole of the cylinder cover of the engine. The detecting rod has the advantages of simple and convenient operation, accurate measurement, broad practicability, high requirement on coaxiality accuracy between the guiding and positioning part of the detection rod and the spherical head, high processing accuracy and small error during detection.
Description
Technical field
The utility model belongs to the deep hole pick-up unit, is specifically related to the oblique hole depth size detecting device of a kind of engine cylinder cover.
Background technology
After engine cylinder cover air admission hole, vent port conduit press-fit, need measure,, the quality of part be carried out effective monitoring so that the parameter of process equipment is adjusted to oblique depth dimensions.Existing pick-up unit 1 as shown in Figure 1, because the locating surface of cubing is 2, when detecting, as shown in Figure 2, because this conduit bottom outlet angle in process changes greatly the positioning reference out of true of locating surface 2, when doing ability value, the cubing examination finds, the error of this cubing is very big, and what can not truly reflect conduit actually press-fits the degree of depth, does not have adjustment and the quality monitoring of instructing the process equipment parameter.
Summary of the invention
The purpose of this utility model is to provide the oblique hole depth size detection of the pinpoint engine cylinder cover of a kind of energy bar, to address the above problem.
The technical solution of the utility model is: the oblique hole depth size detection of engine cylinder cover bar, it comprises that test rod comprises guide rod, guide rod is provided with oblique depth detection section, is provided with the detection reference table top between oblique depth detection section and the guide rod, the axis normal of detection reference table top and guide rod; Oblique hole depth detection segment upper end is provided with the stylus ball crown head, and the centre of sphere of stylus ball crown head is on the axis of guide rod, and the axial line distance of the centre of sphere and detection reference table top is the oblique projected depth size of engine cylinder cover.
This test rod is simple to operation, measures accurately, and practicality is wide, and the guide-localization part of measuring staff requires height, machining precision height with the coaxial accuracy of bulb.The error of the cubing during detection is little.
Description of drawings
The oblique hole depth size of Fig. 1 available engine cylinder cap cubing synoptic diagram.
The oblique hole depth size detection of Fig. 2 available engine cylinder cap synoptic diagram.
The oblique hole depth size of Fig. 3 the utility model engine cylinder cover cubing synoptic diagram.
The oblique hole depth size detection of Fig. 4 the utility model engine cylinder cover synoptic diagram.
Embodiment
As shown in Figure 3, test rod 3 comprises guide rod 4, is provided with oblique depth detection section 5 on the guide rod 4, is provided with detection reference table top 6 between oblique depth detection section 5 and the guide rod 4, and detection reference table top 6 is vertical with the axis 8 of guide rod; Oblique hole depth detection segment upper end is provided with stylus ball crown head 9, and the centre of sphere 10 of stylus ball crown head is on the axis 8 of guide rod, and the centre of sphere 10 is the oblique projected depth size of engine cylinder cover with the axial line distance H of detection reference table top 6.
As shown in Figure 4, during detection, test rod 3 insertions are press-fited in the Postductal air admission hole 11, detection reference table top 6 contacts with hole 11 end faces;
Detect the mathematical model of above-mentioned error:
The * of error amount=(L1-L) [cos α-cos (α ± α ')]
(L1-L) is the distance of the end points 12 of the centre of sphere 10 and oblique depth dimensions H in the formula, because the centre of sphere 10 is the oblique projected depth size of engine cylinder cover with the axial line distance H of detection reference table top 6, therefore, the centre of sphere 10 of stylus ball crown head 9 overlaps with the end points 12 of oblique depth dimensions H, just means that also (L1-L) error is zero;
α is that design press-fits the angle between guide hole (air admission hole) axis and the perpendicular line in the formula; α ' press-fits the angle (the axis angular error that promptly adds the hole in man-hour) that guide hole (air admission hole) axis and design press-fit guide hole (air admission hole) axis after the actual processing.The error of angle, the functional value during owing to the cosine function low-angle is very little, and when poor enough hour of designing, making of L1-L, error amount is very little, can be not influential to measured value.
Claims (1)
1. the oblique hole depth size detection of engine cylinder cover bar, it comprises that test rod comprises guide rod, it is characterized in that guide rod is provided with oblique depth detection section, is provided with the detection reference table top between oblique depth detection section and the guide rod, the axis normal of detection reference table top and guide rod; Oblique hole depth detection segment upper end is provided with the stylus ball crown head, and the centre of sphere of stylus ball crown head is on the axis of guide rod, and the axial line distance of the centre of sphere and detection reference table top is the oblique projected depth size of engine cylinder cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020602375 CN201876225U (en) | 2010-11-11 | 2010-11-11 | Depth dimension detecting rod for inclined hole of cylinder cover of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020602375 CN201876225U (en) | 2010-11-11 | 2010-11-11 | Depth dimension detecting rod for inclined hole of cylinder cover of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201876225U true CN201876225U (en) | 2011-06-22 |
Family
ID=44164142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020602375 Expired - Fee Related CN201876225U (en) | 2010-11-11 | 2010-11-11 | Depth dimension detecting rod for inclined hole of cylinder cover of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201876225U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305584A (en) * | 2011-08-25 | 2012-01-04 | 芜湖禾田汽车工业有限公司 | Spherical center depth detection apparatus of automobile control arm ball and detection method thereof |
| CN102506663A (en) * | 2011-10-28 | 2012-06-20 | 无锡富瑞德精密机械有限公司 | Valve seat depth measuring mechanism with dial depth gauge |
| CN102564272A (en) * | 2011-12-30 | 2012-07-11 | 长城汽车股份有限公司 | Checking fixture for measuring depth of bottom hole of valve retainer of engine cylinder cover |
| CN103115546A (en) * | 2012-10-19 | 2013-05-22 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine cooling inclined hole detection tool and detection method based on the same |
| CN103512471A (en) * | 2013-09-25 | 2014-01-15 | 奇瑞汽车股份有限公司 | Automobile pedal switch support clearance measuring tool and measuring method thereof |
| CN103913110A (en) * | 2013-01-09 | 2014-07-09 | 广西玉柴机器股份有限公司 | Gauge for machining depth of slope of cylinder cover |
| CN110332877A (en) * | 2019-07-05 | 2019-10-15 | 神龙汽车有限公司 | Integral electronic cylinder cap valve base sealing line depth measurement device |
-
2010
- 2010-11-11 CN CN 201020602375 patent/CN201876225U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305584A (en) * | 2011-08-25 | 2012-01-04 | 芜湖禾田汽车工业有限公司 | Spherical center depth detection apparatus of automobile control arm ball and detection method thereof |
| CN102506663A (en) * | 2011-10-28 | 2012-06-20 | 无锡富瑞德精密机械有限公司 | Valve seat depth measuring mechanism with dial depth gauge |
| CN102564272A (en) * | 2011-12-30 | 2012-07-11 | 长城汽车股份有限公司 | Checking fixture for measuring depth of bottom hole of valve retainer of engine cylinder cover |
| CN102564272B (en) * | 2011-12-30 | 2014-09-03 | 长城汽车股份有限公司 | Checking fixture for measuring depth of bottom hole of valve retainer of engine cylinder cover |
| CN103115546A (en) * | 2012-10-19 | 2013-05-22 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine cooling inclined hole detection tool and detection method based on the same |
| CN103115546B (en) * | 2012-10-19 | 2015-08-05 | 浙江吉利汽车研究院有限公司杭州分公司 | A kind of engine cool inclined hole testing tool and the detection method based on this instrument |
| CN103913110A (en) * | 2013-01-09 | 2014-07-09 | 广西玉柴机器股份有限公司 | Gauge for machining depth of slope of cylinder cover |
| CN103512471A (en) * | 2013-09-25 | 2014-01-15 | 奇瑞汽车股份有限公司 | Automobile pedal switch support clearance measuring tool and measuring method thereof |
| CN110332877A (en) * | 2019-07-05 | 2019-10-15 | 神龙汽车有限公司 | Integral electronic cylinder cap valve base sealing line depth measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20191111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |