CN203642847U - Device used for loading detection of outer diameter of connecting rod brushing - Google Patents
Device used for loading detection of outer diameter of connecting rod brushing Download PDFInfo
- Publication number
- CN203642847U CN203642847U CN201320846513.5U CN201320846513U CN203642847U CN 203642847 U CN203642847 U CN 203642847U CN 201320846513 U CN201320846513 U CN 201320846513U CN 203642847 U CN203642847 U CN 203642847U
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- CN
- China
- Prior art keywords
- connecting rod
- outer diameter
- positioning mechanism
- lining
- die shoe
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- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 238000011068 loading method Methods 0.000 title abstract description 12
- 230000001680 brushing effect Effects 0.000 title abstract 5
- 238000003825 pressing Methods 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model discloses a device used for loading detection of an outer diameter of a connecting rod brushing, and is mainly used for the loading detection of the outer diameter of the opening brushing on a small end of an engine connecting rod. According to technical scheme, the device is composed of a pressure machine and a clamping and positioning mechanism; and the clamping and positioning mechanism is structurally characterized in that, an upper mould seat and a lower mould seat are connected through guiding columns, two support rods are installed into the upper mould seat, the support rods are provided with dial gauges, and two fixed rods are installed into the lower mould seat and are fixed by bolts. Proved by practical application, the device is capable of fundamentally overcoming the defect of an original detecting method that the size of the outer diameter of the connecting rod brushing cannot be detected accurately, eliminating personal errors, and meeting the requirements that the assembling quality of a connecting rod brushing is effectively monitored and the device is suitable for the large-scale production of connecting rods.
Description
Technical field
the utility model belongs to a kind of mechanical load formula pick-up unit, be mainly used in the little stomidium of engine link roll formula broached bushing external diameter loading detect, also can be used for other similar Outer Diameter of lining loading detect.
background technology
engine link lining, as shown in Figure 1, 2, 3, lining E is embedded in wrist-pin hole, and lining E is the copper broached bushing that rolls formula conventionally, and wall thickness is 1.5-3mm approximately, also has the broached bushing of car system.When assembling, after being squeezed, embed in wrist-pin hole, form interference fit.In work, the lining after assembling and piston pin form clearance fit, through lubricated, in the time running up, can reduce the friction between workpiece, improve service life of aeroengine.Connecting rod ASSY adopts bush structure to become the main flow that this area is designed, but Outer Diameter of lining is to affect the key that lining coordinates with wrist-pin hole, and external diameter is excessive, in telescopiny, can be damaged to lining and connecting rod, and serious meeting causes scrapping.External diameter is too small, and lining will rotate or come off in wrist-pin hole.Therefore, adopt rational detection means to judge whether connecting rob bushing external diameter meets technical requirement most important.
there is elasticity in the connecting rob bushing of roll-forming, under free state, because of the restriction of examined facility, its external diameter generally all can not directly be measured.Normally adopt ring gauge method of inspection, lining pushed with hand, by ring gauge be qualified, otherwise defective, thrust determines by operator, personal error cannot be avoided, testing result distortion.Adopt in addition outside micrometer to detect, be generally only applicable to buckle type lining, cannot be for detection of rolling formula broached bushing, its testing result is affected by personal error equally, also has dispute.Although above two kinds of methods are convenient, testing result and actual value differ greatly, and cause in the time of assembling; often there is waste product; even directly have influence on the serviceable life of connecting rod ASSY, can not meet the requirement of lining assembly quality, be not suitable with the demand of connecting rod large-scale production.According to this ubiquitous problem, national standard requirement, adopts loading method of inspection to detect opening Outer Diameter of lining, to reject personal error, effectively monitors lining assembly quality.According to this requirement, how to realize with loading method of inspection determining whether Outer Diameter of lining meets product technology requirement, just become an important problem.The producer having in industry also once designed several methods of inspection and device, in actual use, all not ideal enough, still occurred detecting not accurate enough, and inefficiency, can not meet the actual demand of producing.
Summary of the invention
the main technical problems to be solved in the utility model and object are, according to the defect of the method existence of existing inspection connecting rob bushing external diameter.Adopt a set of clamping positioning mechanism and combine by the ordinary press after repacking, designed a kind of device detecting that loads for connecting rob bushing external diameter.Fundamentally overcome the phenomenon that former detection method can not detect connecting rob bushing outside dimension exactly, got rid of personal error.Reach the assembly quality of effectively monitoring connecting rob bushing, adapt to the demand of connecting rod large-scale production.
main technical schemes of the present utility model: load for connecting rob bushing external diameter the device detecting and formed by pressing machine and clamping positioning mechanism, general structure, by upper bolster coupling spindle, the upper bolster of clamping positioning mechanism and the main tapping of pressing machine are connected, and fix with non-magnetic shim, by die shoe coupling spindle, the die shoe of clamping positioning mechanism and the connecting column of pressing machine are connected, equipped load counterweight in the transmission lever of pressing machine; The concrete structure of clamping positioning mechanism, upper bolster is connected with die shoe with guidepost, pack two poles into upper bolster by screw thread, and fix with nut, two clock gauges are respectively charged into pole, and are screwed, pack two fixed bars into die shoe by screw thread, the workplace of two fixed bars is contacted with the detection contact of two clock gauges, and fix with nut.
the utility model proves by practical application: this device accuracy of detection is high, reproducible, all can meet the testing requirement of connecting rob bushing outside dimension.After using, obviously improve the assembly qualified rate of this procedure, the generation of having stopped waste product completely.As a kind of apparatus, simple in structure, cheap, be conducive to apply.
Brief description of the drawings
below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
fig. 1 is the wiring layout of connecting rod and lining.
fig. 2 is the cut-open view of lining.
fig. 3 is the vertical view of Fig. 2.
fig. 4 is structural representation of the present utility model.
fig. 5 is the left view of Fig. 4.
fig. 6 is the structural representation of the utility model clamping positioning mechanism II.
fig. 7 is the structural drawing of the cylindrical standard feeler gauge 19 of the utility model.
fig. 8 is the structural drawing of the utility model upper bolster 10.
fig. 9 is the vertical view of Fig. 8.
figure 10 is the structural drawing of the utility model die shoe 14.
figure 11 is the vertical view of Figure 10.
figure 12 is the shape figure of the utility model fixed bar 16.
figure 13 is the left view of Figure 12.
Embodiment
with reference to Fig. 4,5,6,7, main technical schemes of the present utility model is described: load for connecting rob bushing external diameter the device detecting and formed by pressing machine I and clamping positioning mechanism II.Pressing machine I (seeing Fig. 4) comprises pilot lamp 1, main tapping 2, connecting column 3, load button 4, leading screw 5, handwheel 6, load counterweight 7;
clamping positioning mechanism II (see figure 6) comprises upper bolster coupling spindle 8, the axis of guide 9, upper bolster 10, nut 11, clock gauge 12, screw 13, die shoe 14, die shoe coupling spindle 15, fixed bar 16, pole 17, non-magnetic shim 18, standard feeler gauge 19(and sees Fig. 7).General structure (see figure 6), by upper bolster coupling spindle 8, the upper bolster 10 of clamping positioning mechanism II and the main tapping 2 of pressing machine I are connected, and fixing with non-magnetic shim 18, by die shoe coupling spindle 15, the die shoe 14 of clamping positioning mechanism II and the connecting column 3 of pressing machine I are connected, and in the transmission lever of pressing machine I, equipped load counterweight 7(is shown in Fig. 5); The concrete structure (see figure 6) of clamping positioning mechanism II, upper bolster 10 is connected with die shoe 14 with guidepost 9, pack two poles 17 into upper bolster 10 by screw thread, and fixing with nut 11, two clock gauges 12 are respectively charged into pole 17, and fixing with screw 13, pack two fixed bars 16 into die shoe 14 by screw thread, the workplace A of two fixed bars 16 is contacted with the detection contact of two clock gauges 12, and fixing with nut 11.
with reference to Fig. 4,5, described pressing machine I, is to utilize HB-3000 type Brinell's machine to reequip, and the original worktable of removal and column redesign connecting column 3, connecting column are packed in the hole of Brinell's machine leading screw 5.Also can reequip use with similar ordinary press; Described load counterweight 7, to determine according to loading force, in the time of Outer Diameter of lining >=12mm, on-load pressure (kg)=600 × e × C/D, (the equivalent thickness value that wherein e is lining, C is lining height value, D is Outer Diameter of lining), in the time of Outer Diameter of lining < 12mm, on-load pressure (kg)=300 × e × C/D; Described standard feeler gauge 19(is shown in Fig. 7) and upper and lower die holder hole B(see Fig. 6) dimensional tolerence, be to calculate according to the design standards of locating in GB GB/T18331.1.
with reference to Fig. 4,6,7, principle of work of the present utility model: the load counterweight by device applies certain test force in sleeve surface, judges that with the deflection of Outer Diameter of lining whether Outer Diameter of lining is qualified.It detects operation: a, starting outfit; B, unscrew handwheel, upper bolster 10 and die shoe 14 are departed to the approximately gap of 2 ~ 3mm, standard feeler gauge 19 is inserted in upper and lower die holder hole B, turn handwheel, touches upper and lower mould seated connection, continues turn handwheel and forms self-locking; C, press the button 4 loadings, utilize required load counterweight 7 to exert pressure, pressure is delivered on standard feeler gauge 19, and two clock gauge 12 pointers are made zero; D, press the button 4 unloadings, unscrew handwheel, make upper and lower die holder move the gap that departs from about 1mm, take out standard feeler gauge 19, complete calibration; E, lining level is inserted to (lining seam upwards) in upper and lower die holder hole B; F, turn handwheel, raise die shoe to contact with upper bolster with lining, continues turn handwheel and form self-locking; G, press the button 4 loadings, utilize load counterweight 7 to exert pressure, it is upper that pressure is delivered to lining E, reads respectively numerical value △ h1, the △ h2 of two clock gauges; H, press the button 4 unloadings, unscrew handwheel, the gap that makes upper and lower die holder move approximately 1 mm, takes out lining E; I, calculate the mean value △ h of two clock gauge reading values, △ h value changes in claimed range, and Outer Diameter of lining is qualified, otherwise defective.(scope that △ h value changes is by formula: △ h=Outer Diameter of lining tolerance × pi/2 calculates).
embodiment mono-, detected connecting rob bushing: GA2.0TS type, external diameter Φ 23.007+0.02 0, standard feeler gauge Φ 23.015 0-0.003 used, upper and lower die holder hole Φ 23.015+0.003 0, loaded weight 850kg.Concrete operations: a, starting outfit; B, unscrew handwheel, upper bolster 10 and die shoe 14 are departed to the approximately gap of 2 ~ 3mm, the standard feeler gauge of Φ 23.015 0-0.003 is inserted in upper and lower die holder hole B Φ 23.015+0.003 0, turn handwheel, touches upper and lower mould seated connection, continues turn handwheel and forms self-locking; C, press the button 4 loadings, utilize required load counterweight, apply 850kg pressure, pressure is delivered on standard feeler gauge 19, and two clock gauge pointers are made zero; D, press the button unloading, unscrew handwheel, make upper and lower die holder move the gap that departs from about 1mm, take out standard feeler gauge 19, complete calibration; E, lining level is inserted in upper and lower die holder hole B;
f, turn handwheel, raise die shoe to contact with upper bolster with lining, continues turn handwheel and form self-locking; G, press the button 4 loadings, utilize load counterweight, apply 850kg pressure, pressure is delivered on lining, reads respectively reading value △ h1 and the △ h2 of two clock gauges; H, press the button 4 unloadings, unscrew handwheel, the gap that makes upper and lower die holder move approximately 1 mm, takes out lining; I, calculate the mean value △ h of two clock gauge reading values, △ h is qualified within the scope of 0～0.03mm, otherwise defective.
embodiment bis-, detected connecting rob bushing: B15D type, external diameter Φ 20.056+0.025 0, standard feeler gauge Φ 20.069 0-0.003 used, upper and lower die holder hole Φ 20.069+0.003 0, loaded weight 500kg.Press aforesaid operations, finally calculate the mean value △ h of two clock gauge reading values, △ h is qualified within the scope of 0～0.04mm, otherwise defective.
the utility model has completed the detection of the connecting rod product Outer Diameter of lining to models such as GA2.0TS, DA468Q, H16, H15NA, ED01, B15D at present, and effect is better, itemizes no longer one by one here.
Claims (1)
1. one kind loads the device detecting for connecting rob bushing external diameter, it is characterized in that: formed by pressing machine (I) and clamping positioning mechanism (II), general structure, by upper bolster coupling spindle (8), the upper bolster (10) of clamping positioning mechanism (II) and the main tapping (2) of pressing machine (I) are connected, and fixing with non-magnetic shim (18), by die shoe coupling spindle (15), the die shoe (14) of clamping positioning mechanism (II) and the connecting column (3) of pressing machine (I) are connected, equipped load counterweight (7) on the heavy bar of biography of pressing machine (I);
The concrete structure of clamping positioning mechanism (II), upper bolster (10) is connected with die shoe (14) with guidepost (9), pack two poles (17) into upper bolster (10) by screw thread, and fixing with nut (11), two clock gauges (12) are respectively charged into pole (17), and fixing with screw (13), pack two fixed bars (16) into die shoe (14) by screw thread, the workplace (A) of two fixed bars (16) is contacted with the detection contact of two clock gauges (12), and fixing with nut (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320846513.5U CN203642847U (en) | 2013-12-20 | 2013-12-20 | Device used for loading detection of outer diameter of connecting rod brushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320846513.5U CN203642847U (en) | 2013-12-20 | 2013-12-20 | Device used for loading detection of outer diameter of connecting rod brushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203642847U true CN203642847U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320846513.5U Expired - Lifetime CN203642847U (en) | 2013-12-20 | 2013-12-20 | Device used for loading detection of outer diameter of connecting rod brushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203642847U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063856A (en) * | 2016-11-22 | 2017-08-18 | 四川成发航空科技股份有限公司 | The device tested for broached bushing by power |
| CN113390327A (en) * | 2021-07-09 | 2021-09-14 | 云南西仪工业股份有限公司 | Method for testing assembling fitting degree of connecting rod bushing |
-
2013
- 2013-12-20 CN CN201320846513.5U patent/CN203642847U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063856A (en) * | 2016-11-22 | 2017-08-18 | 四川成发航空科技股份有限公司 | The device tested for broached bushing by power |
| CN107063856B (en) * | 2016-11-22 | 2019-05-14 | 四川成发航空科技股份有限公司 | The device tested for broached bushing by power |
| CN113390327A (en) * | 2021-07-09 | 2021-09-14 | 云南西仪工业股份有限公司 | Method for testing assembling fitting degree of connecting rod bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |