CN202676060U - Tool for position measuring of hole and face of connecting rod bolt - Google Patents

Tool for position measuring of hole and face of connecting rod bolt Download PDF

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Publication number
CN202676060U
CN202676060U CN 201220162488 CN201220162488U CN202676060U CN 202676060 U CN202676060 U CN 202676060U CN 201220162488 CN201220162488 CN 201220162488 CN 201220162488 U CN201220162488 U CN 201220162488U CN 202676060 U CN202676060 U CN 202676060U
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China
Prior art keywords
rod
hole
center
bolt
measuring
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Application number
CN 201220162488
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Chinese (zh)
Inventor
向桥
周洋
张勇
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YUNNAN XIYI INDUSTRY CO LTD
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YUNNAN XIYI INDUSTRY CO LTD
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Abstract

The utility model discloses a tool for position measuring of a hole and a face of a connecting rod bolt, and is mainly used for measuring the position dimensions from the hole and the face of the bolt of a motor connecting rod cover to the center of the connecting rod. The tool is characterized in that, on the left of a body, a positioning block of a guide groove and a big-hole positioning mandrel are fixed by bolts; and on the right of the body, a positioning through groove is arranged along a center line, a small-hole positioning mandrel is arranged on the positioning through groove, and mandrels and plug gauges are selected for different position dimensions in the detection. According to the utility model, the probation proves that the problem that the position dimension overproof phenomenon often happens as there is no tool for measuring the position dimensions from the hole and the face of the bolt of the motor connecting rod cover to the center of the connecting rod in the original production line. The tool can perform tracking measurement of the position dimensions of the connecting rod, and the measuring result is quick and accurate, meeting the requirements of batch production.

Description

A kind of position measurement instrument for the connecting rod bolt holes face
Technical field
[0001] the utility model belongs to a kind of mechanical measurement instrument, is mainly used in the bolt hole, face of connection rod cap for engine to the measurement of connecting rod center size, also is applicable to the measurement of other like parts hole, face position.
Background technology
Connecting rod is one of vitals of engine, and requirement on machining accuracy is very high, detects very sternly, otherwise will directly have influence on the service property (quality) of engine.Fractured connecting rod (see figure 1) such as my company's production, it is by a half-finished connecting rod swollen disconnected be gonnecting rod body 4 and connecting rod cap 3, through after the processing, be assembled into complete connecting rod by two bolts again, complete connecting rod contains the bolt hole 1 of macropore 2, aperture 5 and both sides symmetry etc.According to investigations, at present in the processing technology of connecting rod, be in swollen disconnected semi-manufacture connecting rod before, bolt hole 1 center of connecting rod cap to position dimension L1, the connecting rod cap bolt side A at center, the large and small hole of connecting rod to the large and small hole of connecting rod center size L2 and connecting rod cap bolt face B to connecting rod macropore center size L3, the error-detecting of three significant dimensions, domestic and international most of producer all carries out at three coordinatographs, is that the degree that physical location by point, line, surface tested on the control workpiece element to be measured departs from ideal position is judged site error.But this three coordinatographs need import, and price is very expensive, and volume is large, and inconvenience is moved, and require to work under constant temperature, super-clean environment.So the connecting rod to batch machining can only regularly be inspected several the measurement by random samples; can not often measure at any time; the more impossible tracking at production line detected; therefore connecting rod bolt holes, bolt face usually can occur to the out-of-size phenomenon in connecting rod center, make communicate with the bolt hole generation of problems such as scrapping of macropore when sometimes also causing back operation right boring.Badly influence the crudy of connecting rod and finishing of manufacturing schedule, the inadaptable demand of producing in enormous quantities of existing detection mode.
Summary of the invention
The main technical problems to be solved in the utility model and purpose are: according to the defective that the connecting rod metering system is existed, adopt the technology of compound location, design a kind of instrument of special use, position dimension to connecting rod carries out tracking measurement, the implementation process monitoring, guarantee to process connecting rod quality, satisfy the demand that connecting rod is produced in enormous quantities.
Main technical schemes of the present utility model is: the concrete structure of survey instrument is, left part at body, along center line by screw and pin, fixedly mount the locating piece that gathering sill is arranged, then along center line a macropore positioning core axle is installed, right-hand member at body has a location groove along position of center line, on the groove of location an aperture positioning core axle is housed, and uses mandrel and feeler gauge for the diverse location size during detection.
The utility model proves by practical application: use this instrument to detect, can simply judge " qualified " and " defective " to the processing connecting rod, thereby have the effect of quality monitoring, guidance production, relatively be suitable for large-scale production; It can be stopped in batch quality accident and occur, and stablizes process; Simple to operate during use, accurate, quick.Be that the production line of the typicals products in mass production such as ED01, B15D uses in specification now.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the rod-shape of swollen disconnection and the position dimension synoptic diagram of required measurement.
Fig. 2, front view of the present utility model.
Fig. 3 is the vertical view (saving piece number 9) of Fig. 2.
Fig. 4, be the synoptic diagram (saving piece number 9) of the utility model measuring position size L1.
Fig. 5, be the synoptic diagram (saving piece number 9) of the utility model measuring position size L2, L3.
The sketch of Fig. 6, air plug gauge 13.
The sketch of Fig. 7, measurement feeler gauge 14.
Embodiment
With reference to Fig. 2,3,4,5, main technical schemes of the present utility model is described: the utility model is comprised of locating piece 6, macropore positioning core axle 7, body 8, aperture positioning core axle 9, screw 10, pin 12, mandrel 13, feeler gauge 14.Its concrete structure is, left part at body 8, pass through screw 10 and pin 12 along center line, fixedly mount a locating piece 6 that gathering sill is arranged, then along center line a macropore positioning core axle 7 is installed, right-hand member at body 8 has a location groove along position of center line, an aperture positioning core axle 9 is housed, (seeing Fig. 2,3) on the groove of location.Use mandrel 13(to see Fig. 4,6 for the diverse location size during detection) and feeler gauge 14(see Fig. 5,7).
With reference to Fig. 5,7, measure connecting rod cap bolt side A to the position dimension L2 at the large aperture of connecting rod center and connecting rod cap bolt face B to connecting rod macropore center size L3, employing feeler gauge (14).
With reference to Fig. 3, described locating piece 6, the center of its gathering sill 11 to connecting rod center size L4 when make installing, guarantee and the connecting rod cap bolt hole consistent to connecting rod center size L1, L4 is when making installation, accuracy guarantee is in ± 0.005mm; Measurement datum C and connecting rod center size L5 are when make installing, and accuracy guarantee is in ± 0.01mm; The center size L6 of measurement datum D and macropore positioning core axle 7 is when make installing, and accuracy guarantee is in ± 0.005mm;
With reference to Fig. 2, macropore positioning core axle 7 adds man-hour with the localization part of aperture positioning core axle 9, and accuracy guarantee is in-0.005mm;
With reference to Fig. 3, the width localization part of the aperture on body 8 right sides location groove adds man-hour, and accuracy guarantee is in+0.005mm;
The roughness of all location and measurement datum is all in Ra0.8 on the survey instrument.
With reference to Fig. 5, connecting rod cap bolt side A is that connecting rod cap bolt side A is to the spacing L7 of the measurement datum C of locating piece 6, L7=L5-L2 to the position dimension L2 at the large aperture of connecting rod center by dimension conversion.Only surveying L7 gets final product; Connecting rod cap bolt face B is to connecting rod macropore center size L3, and for measuring connecting rod cap bolt face B to the distance L 8 of the measurement datum D of locating piece 6, L8=L6-L3 only surveys L8 to get final product by dimension conversion;
With reference to Fig. 1,2,3,4, testing process of the present utility model is: crank pin end pore 2 is sleeved on the instrument big end hole positioning core axle 7, and fitted in the upper plane of connecting rod (dashed graph part) lower plane and body 8, aperture positioning core axle 9 is inserted in the location groove of connecting rod small end hole and body 8, with connecting rod be fixed on body 8 above, guarantee that connecting rod is located fully, (Fig. 2,3) do not relatively move during measurement; Measurement and positioning is put size L1, during measurement with air plug gauge 13, be inserted in the connecting rod bolt holes 1 by the gathering sill 11 on the locating piece 6, when air plug gauge 13 can enter bolt hole 1 when interior smoothly, the center that is judged to be bolt hole meets technical requirement to the position dimension L1 at the large aperture of connecting rod center, judges in the time of can not entering that position dimension L1 does not meet the technical requirement (see figure 4); Measurement and positioning is put size L2, inserts between the measurement datum D of connecting rod cap bolt face B and locating piece 6, if the end face C of locating piece 6 is qualified in 14 liang of groove EF of feeler gauge, if then be not judged to be defective (see figure 5) in two grooves measuring feeler gauge 14; Measuring position size L3, " T " end of feeler gauge 14 can easily be inserted between the reference field D of connecting rod cap bolt face B and locating piece 6, when " Z " of feeler gauge end can not insert simultaneously, illustrate that connecting rod cap bolt face B is qualified to the position dimension L3 at connecting rod macropore center, on the contrary defective (see figure 5).

Claims (2)

1. position measurement instrument that is used for the connecting rod bolt holes face, it is characterized in that: the concrete structure of survey instrument is, left part in body (8), pass through screw (10) and pin (12) along center line, fixedly mount a locating piece (6) that gathering sill is arranged, then along center line a macropore positioning core axle (7) is installed, right-hand member at body (8) has a location groove along position of center line, on the groove of location an aperture positioning core axle (9) is housed, uses mandrel (13) and feeler gauge (14) for the diverse location size during detection.
2. the position measurement instrument for the connecting rod bolt holes face according to claim 1, it is characterized in that: connecting rod macropore center size (L3) is arrived to position dimension (L2) and the connecting rod cap bolt face (B) at the large aperture of connecting rod center in measurement connecting rod cap bolt side (A), adopts feeler gauge (14).
CN 201220162488 2012-04-17 2012-04-17 Tool for position measuring of hole and face of connecting rod bolt Active CN202676060U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220162488 CN202676060U (en) 2012-04-17 2012-04-17 Tool for position measuring of hole and face of connecting rod bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220162488 CN202676060U (en) 2012-04-17 2012-04-17 Tool for position measuring of hole and face of connecting rod bolt

Publications (1)

Publication Number Publication Date
CN202676060U true CN202676060U (en) 2013-01-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220162488 Active CN202676060U (en) 2012-04-17 2012-04-17 Tool for position measuring of hole and face of connecting rod bolt

Country Status (1)

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CN (1) CN202676060U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202534A (en) * 2017-07-14 2017-09-26 温州市开诚机械有限公司 Non-return valve rocker size detection locating rack
CN108692691A (en) * 2018-05-16 2018-10-23 大连大学 The method for measuring connecting rod class part's machining errors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202534A (en) * 2017-07-14 2017-09-26 温州市开诚机械有限公司 Non-return valve rocker size detection locating rack
CN108692691A (en) * 2018-05-16 2018-10-23 大连大学 The method for measuring connecting rod class part's machining errors

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