CN203083501U - Special detection tool for measuring depth of crankshaft round corner undercutting groove - Google Patents
Special detection tool for measuring depth of crankshaft round corner undercutting groove Download PDFInfo
- Publication number
- CN203083501U CN203083501U CN 201320092444 CN201320092444U CN203083501U CN 203083501 U CN203083501 U CN 203083501U CN 201320092444 CN201320092444 CN 201320092444 CN 201320092444 U CN201320092444 U CN 201320092444U CN 203083501 U CN203083501 U CN 203083501U
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- pointer
- depth
- crankshaft
- round corner
- detecting
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Abstract
The utility model relates to the field of a detection tool, in particular to a special detection tool for measuring the depth of a crankshaft round corner undercutting groove. The special detection tool for measuring the depth of the crankshaft round corner undercutting groove comprises a detection pointer, a pointer cover, a pointer sleeve and a dial indicator, wherein the pointer cover is fixedly arranged above the pointer sleeve, the detection pointer is arranged in the pointer sleeve, the dial indicator is arranged on the pointer cover, and the lower end of a measuring rod of the dial indicator is in contact connection with the upper end of the detection pointer. The special detection tool for measuring the depth of the crankshaft round corner undercutting groove has the advantages that the structure is simple, the processing is easy, the special detection tool is provided for detecting the depth of the crankshaft round corner undercutting groove, and the precise measurement on the depth of the crankshaft round corner undercutting groove is realized.
Description
Technical field
The utility model relates to the testing tool field, especially a kind of appliance special for detecting of measuring the crankshaft fillet undercut groove degree of depth.
Background technology
Bent axle is one of most important parts in the internal combustion engine, and its intensity is directly connected to the reliability of complete machine, needs bent axle is carried out special strengthening for this reason, improves the anti-fatigue performance of bent axle.Fillet rolling is a kind of very effective surface intensified technique.Confirm that through test crankshaft fillet is through after the roll extrusion, fatigue strength increases substantially.
The most frequently used method of fillet rolling and reinforcing technology is earlier heavyly at axle journal knuckle place to cut out the fillet identical with the roller radius size and carry out roll extrusion.Adopting the heavy mode roll extrusion of cutting of fillet that stress is disperseed, is the most ripe job operation.This mode roll extrusion is had relatively high expectations to the crudy of undercut groove, and the quality of undercut groove quality is one of key factor of fillet rolling and reinforcing effect quality.
The crankshaft fillet undercut groove degree of depth represents with the fillet lower limit amount usually, and the lower limit amount of crankshaft fillet before and after roll extrusion can produce great changes, after the roll extrusion than obviously reducing before the roll extrusion.The special depth measured material is measured the variable quantity of roll extrusion front and back fillet by the measurement to the fillet degree of depth before and after the crankshaft rolling, determines best roll extrusion power, guarantees the counter-bending fatigue strength of bent axle.
Roll extrusion situation for the undercut groove rolling crankshafts does not have appliance special for detecting to detect at present, and the roll extrusion effect can't be determined.
The utility model content
The purpose of this utility model is to remedy the deficiencies in the prior art, and a kind of appliance special for detecting of measuring the crankshaft fillet undercut groove degree of depth is provided.
For achieving the above object, the technical solution adopted in the utility model is: a kind of appliance special for detecting of measuring the crankshaft fillet undercut groove degree of depth comprises and detects pointer, pointer lid, pointer cover, dial gauge; The pointer lid is fixedly mounted on the top of pointer cover; Detecting pointer is installed in the pointer cover; Dial gauge is installed in pointer and covers; The sounding rod lower end of described dial gauge is connected with the last end in contact that detects pointer.
Described pointer puts and is processed with the pointer hole, and described pointer hole is used to hold the detection pointer.
Described pointer covers and is processed with through hole, and described through hole is used to hold the sounding rod of dial gauge.
The appliance special for detecting of the measurement crankshaft fillet undercut groove degree of depth of the present utility model is simple in structure, is easy to processing, provides special cubing for detecting the crankshaft fillet undercut groove degree of depth, has realized the accurate measurement of the crankshaft fillet undercut groove degree of depth.
Description of drawings
Fig. 1 is the structural representation of the appliance special for detecting of the measurement crankshaft fillet undercut groove degree of depth of the present utility model;
Fig. 2 is the structural representation of Fig. 1 middle finger needle guard;
Fig. 3 is the structural representation of pointer lid among Fig. 1;
Fig. 4 is the synoptic diagram that detects pointer among Fig. 1.。
Embodiment
As shown in Figure 1, a kind of appliance special for detecting of measuring the crankshaft fillet undercut groove degree of depth comprises pointer lid 1, pointer cover 2, detects pointer 3, dial gauge 4; Pointer lid 1 is fixedly mounted on the top of pointer cover 2; Detecting pointer is installed in the pointer cover; Dial gauge is installed in pointer and covers.As shown in Figure 2, be processed with pointer hole 7 on the pointer cover 2, pointer hole 7 is used to hold detection pointer 3; As shown in Figure 3, be processed with through hole 8 on the pointer lid 1, through hole 8 is used to hold the sounding rod of dial gauge; The sounding rod lower end of dial gauge 4 is connected with the last end in contact that detects pointer 3.
Put into the pointer hole 7 of pointer cover 2 detecting pointer 3 gently by constant bearing, pointer lid 1 is installed then, tighten fixed cap screw 5, the pointer lid is fixedly mounted on pointer cover top; At last the test rod of dial gauge 4 is put into the through hole of pointer lid, tighten fixed table screw 6, dial gauge is fixed on pointer covers, when guaranteeing that the detection pointer is in bottom, dial gauge test rod lower end just contacts with the top of detecting pointer, and this moment, the dial gauge reading was zero.
The pointer cover of the utility model cubing, pointer lid and detection pointer adopt the 40Cr material after quenching, tempering heat treatment, guarantee that hardness is more than HRC50, pointer cover, pointer lid and detection pointer gauge surface roughness are all more than Ra0.8, detect the pointer right alignment smaller or equal to 0.01mm, guarantee the precision of cubing.
During measurement, the bottom surface and the side of pointer cover are leaned against respectively on the side stage of axle journal and bent axle, detect the least significant end that the pointer needle point is in crankshaft fillet this moment, record dial gauge reading; When fillet changes, measure record dial gauge reading once more; The difference of twice measurement data is the lower limit amount difference before and after the crankshaft fillet roll extrusion, is the crankshaft fillet undercut groove degree of depth.
Claims (3)
1. an appliance special for detecting of measuring the crankshaft fillet undercut groove degree of depth is characterized in that: comprise and detect pointer, pointer lid, pointer cover, dial gauge; The pointer lid is fixedly mounted on the top of pointer cover; Detecting pointer is installed in the pointer cover; Dial gauge is installed in pointer and covers; The sounding rod lower end of described dial gauge is connected with the last end in contact that detects pointer.
2. the appliance special for detecting of the measurement crankshaft fillet undercut groove degree of depth according to claim 1 is characterized in that: described pointer puts and is processed with the pointer hole, and described pointer hole is used to hold the detection pointer.
3. the appliance special for detecting of the measurement crankshaft fillet undercut groove degree of depth according to claim 1 and 2 is characterized in that: described pointer covers and is processed with through hole, and described through hole is used to hold the sounding rod of dial gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092444 CN203083501U (en) | 2013-02-25 | 2013-02-25 | Special detection tool for measuring depth of crankshaft round corner undercutting groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092444 CN203083501U (en) | 2013-02-25 | 2013-02-25 | Special detection tool for measuring depth of crankshaft round corner undercutting groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083501U true CN203083501U (en) | 2013-07-24 |
Family
ID=48829328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320092444 Expired - Fee Related CN203083501U (en) | 2013-02-25 | 2013-02-25 | Special detection tool for measuring depth of crankshaft round corner undercutting groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203083501U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175460A (en) * | 2013-02-25 | 2013-06-26 | 天润曲轴股份有限公司 | Checking tool special for measuring depth of round-corner undercut groove of crankshaft |
| CN105352414A (en) * | 2015-11-25 | 2016-02-24 | 重庆渝记涵诚机械制造有限公司 | Measuring tool for measuring chamfering of gas inlet and outlet holes for cylinder cover |
-
2013
- 2013-02-25 CN CN 201320092444 patent/CN203083501U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175460A (en) * | 2013-02-25 | 2013-06-26 | 天润曲轴股份有限公司 | Checking tool special for measuring depth of round-corner undercut groove of crankshaft |
| CN105352414A (en) * | 2015-11-25 | 2016-02-24 | 重庆渝记涵诚机械制造有限公司 | Measuring tool for measuring chamfering of gas inlet and outlet holes for cylinder cover |
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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: 20130724 Termination date: 20150225 |
|
| EXPY | Termination of patent right or utility model |