CN103760092B - Worm screw grinding burn detection method - Google Patents
Worm screw grinding burn detection method Download PDFInfo
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- CN103760092B CN103760092B CN201310734725.9A CN201310734725A CN103760092B CN 103760092 B CN103760092 B CN 103760092B CN 201310734725 A CN201310734725 A CN 201310734725A CN 103760092 B CN103760092 B CN 103760092B
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Abstract
nullThe present invention relates to a kind of worm screw grinding burn detection detection method，Including PLC，Multiple detection cells are lined up two rows and are positioned at detection cell framework，The back timber face, front and back of detection cell framework is guide rail，Drive axle and motor signal output part that step motor drive is positioned on guide rail connect the signal input part of PLC by data wire，Drive end shaft be respectively provided with guide wheel and drive guide wheel to move forward and backward along guide rail，Elevating movement cylinder end is connected with set bearing block shell on the driving shaft and lift cylinder signal output part connects the signal input part of PLC by data wire，Piston rod in elevating movement cylinder is connected with worm screw by workpiece clamp and is driven worm screw down or up，The cylinder that seesaws is positioned horizontally in below axle sleeve by axle sleeve and the signal output part of front fate dynamic air cylinder connects the signal input part of PLC by data wire，The piston rod end seesawed in cylinder is connected with lift cylinder shell and drives lift cylinder transverse movement.
Description
Technical field
The present invention relates to a kind of worm screw grinding burn detection method that can detect whether processed worm screw face is ground burn quickly and efficiently, belong to worm screw detection method and manufacture field.
Background technology
When the selection of worm screw grinding parameter is improper or cooling selection is improper, secondary quenching and high tempering can be manufactured at surface of the work during grinding, so that producing tension between top layer and secondary top layer, cause the phenomenon that grinding crack occurs, this crackle had both been difficult to quickly will detect, and also cannot accurately determine burn rank.
Summary of the invention
Purpose of design: avoid the weak point in background technology, designs a kind of worm screw grinding burn detection method that can detect whether processed worm screw face is ground burn quickly and efficiently.
Design: worm screw can produce substantial amounts of grinding heat in grinding process, the cooled liquid of a part is taken away, another part is conducted in the shallow top layer of workpiece, and make workpiece surface temperature raise, tempering layer can be formed at tooth surface when grinding heat produces in a large number, when temperature reaches fusion temperature, then cooled liquid is cooled into secondary quenching layer, thus forming grinding burn, owing to worm screw grinding burn workpiece surface can form tempering layer, its textura epidermoidea is tempered martensite, and there is corrosion reaction in tempered martensite physical ability and acid, the present invention adopts the method for nitric acid corrosion according to this and designs the application and detect system and detection method.
nullTechnical scheme: a kind of worm screw grinding burn detection method，The first step: 9 detection cells are lined up two rows and are positioned at detection cell framework，The back timber face, front and back of detection cell framework is guide rail，Drive axle and motor signal output part that step motor drive is positioned on guide rail connect the signal input part of PLC by data wire，Drive end shaft be respectively provided with guide wheel and drive guide wheel to move forward and backward along guide rail，Elevating movement cylinder end is connected with set bearing block shell on the driving shaft and elevating movement air cylinder signal outfan connects the signal input part of PLC by data wire，Piston rod in elevating movement cylinder is connected with worm screw by workpiece clamp and is driven worm screw down or up，The cylinder that seesaws is positioned horizontally in below axle sleeve by axle sleeve and the signal output part of front fate dynamic air cylinder connects the signal input part of PLC by data wire，The piston rod end seesawed in cylinder is connected with elevating movement cylinder shell and drives elevating movement cylinder transverse movement，Often row's detection cell mouth to guide rail on be equipped with contact switch and contact switch 8 signal output part and connect the signal input part of PLC by data wire；Second step: add the alkalescence that concentration is 4-5% in (1) first detection cell and remove stearol, temperature >=50 DEG C, pH value > 10, time > 15 minutes, purpose is deoiled fat；Adding concentration in (2) second detection cells is the sodium hydrate aqueous solution of 4-6%, temperature 25 ± 0.5 DEG C, pH value 10-11.5, time > 3 minutes, and purpose is deoiled fat；Adding concentration in (3) the 3rd detection cells is the aqueous solution of nitric acid of 2-4%, temperature room temperature, pH value < 7, and second time 5-8, purpose is corroded；Adding concentration in (4) the 4th detection cells is the sodium hydrate aqueous solution of 4-6%, and temperature room temperature, pH value 11-12.5,5 seconds time, purpose goes acid；Adding concentration in (5) the 5th detection cells is the aqueous hydrochloric acid solution of 2-4%, temperature room temperature, pH value < 7, and second time 30-60, purpose is decoloured；Adding concentration in (6) the 6th detection cells is the sodium hydroxide solution of 4-6%, and temperature room temperature, pH value 11-12.5,5 seconds time, purpose goes acid；Adding concentration in (7) the 7th detection cells is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,3 minutes time, in purpose and acid；Adding concentration in (8) the 8th detection cells is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,5 seconds time, purpose lixiviating；Adding antirust oil in (9) the 9th detection cells, temperature room temperature, 1-3 minute, purpose was antirust；3rd step: worm screw is clipped in workpiece clamp, the first detection cell heat go fat, the second detection cell cold rinse, the 3rd detection cell acid etching, the 4th detection cell cold rinse, the 5th detection cell acid etching, the 6th detection cell cold wash, in the 7th detection cell and, after the 8th detection cell cold wash, after drying up with hair-dryer, worm screw is taken out: A class: without grinding burn, surface of the work presents uniform Lycoperdon polymorphum Vitt after entering the 9th detection cell immersion oil；B class: slight burns, grinding burn is discontinuous, narrower light color display；D class: heavier grinding burn, the dark display that grinding burn is wider continuously；E class: again harden, the region again hardened is white macula, is around the D level region of black.
The present invention is compared with background technology, and one is to quickly complete the quick detection to worm screw, can confirm again the rank of burn rapidly, and accuracy of detection is high；Two is system design science, has started the precedent that worm screw adopts tempered martensite automatically to detect.
Accompanying drawing explanation
Fig. 1 is the system schematic front view in worm screw grinding burn detection method.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is without grinding burn, and surface presents uniform Lycoperdon polymorphum Vitt.
Fig. 4 is slight burns, and grinding burn is discontinuous, narrower light color display.
Fig. 5 is heavier grinding burn, the dark display that grinding burn is wider continuously.
Fig. 6 hardens again, and the region again hardened is white macula, is around the D level region of black.These white maculas are non-tempered martensites.
Detailed description of the invention
Embodiment 1: with reference to accompanying drawing 1-6.nullA kind of worm screw grinding burn detection method，The first step: 9 detection cells 6 are lined up two rows and are positioned at detection cell framework，The back timber face, front and back of detection cell framework is guide rail 6，Motor 1 drives drive axle and motor 1 signal output part that are positioned on guide rail 7 to be connect the signal input part of PLC by data wire，Drive end shaft be respectively provided with guide wheel and drive guide wheel to move forward and backward along guide rail 7，Elevating movement cylinder 3 end is connected with set bearing block shell on the driving shaft and elevating movement cylinder 3 signal output part connects the signal input part of PLC by data wire，Piston rod in elevating movement cylinder 3 is connected with worm screw 5 by workpiece clamp and is driven worm screw 5 down or up，The cylinder 11 that seesaws is positioned horizontally in below axle sleeve by axle sleeve and the signal output part of front fate dynamic air cylinder 11 connects the signal input part of PLC by data wire，The piston rod end seesawed in cylinder 11 is connected with elevating movement cylinder 3 shell and drives elevating movement cylinder 3 transverse movement，Often row's detection cell mouth to guide rail 7 on be equipped with contact switch 8 and contact switch 8 signal output part and connect the signal input part of PLC by data wire；Second step: add the alkalescence that concentration is 4-5% in (1) first detection cell and remove stearol, temperature >=50 DEG C, pH value > 10, time > 15 minutes, purpose is deoiled fat；Adding concentration in (2) second detection cells is the sodium hydrate aqueous solution of 4-6%, temperature 25 ± 0.5 DEG C, pH value 10-11.5, time > 3 minutes, and purpose is deoiled fat；Adding concentration in (3) the 3rd detection cells is the aqueous solution of nitric acid of 2-4%, temperature room temperature, pH value < 7, and second time 5-8, purpose is corroded；Adding concentration in (4) the 4th detection cells is the sodium hydrate aqueous solution of 4-6%, and temperature room temperature, pH value 11-12.5,5 seconds time, purpose goes acid；Adding concentration in (5) the 5th detection cells is the aqueous hydrochloric acid solution of 2-4%, temperature room temperature, pH value < 7, and second time 30-60, purpose is decoloured；Adding concentration in (6) the 6th detection cells is the sodium hydroxide solution of 4-6%, and temperature room temperature, pH value 11-12.5,5 seconds time, purpose goes acid；Adding concentration in (7) the 7th detection cells is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,3 minutes time, in purpose and acid；Adding concentration in (8) the 8th detection cells is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,5 seconds time, purpose lixiviating；Adding antirust oil in (9) the 9th detection cells, temperature room temperature, 1-3 minute, purpose was antirust；3rd step: worm screw is clipped in workpiece clamp, the first detection cell heat go fat, the second detection cell cold rinse, the 3rd detection cell acid etching, the 4th detection cell cold rinse, the 5th detection cell acid etching, the 6th detection cell cold wash, in the 7th detection cell and, after the 8th detection cell cold wash, after drying up with hair-dryer, after entering the 9th detection cell immersion oil take out worm screw: A class: without grinding burn, surface presents uniform Lycoperdon polymorphum Vitt. see in Fig. 3 without burn area；B class: slight burns, grinding burn is discontinuous, narrower light color display；It is not notable that this type of grinding burn reduces case hardness, sees Fig. 4；D class: heavier grinding burn, the dark display that grinding burn is wider continuously.This type of grinding burn reduces case hardness 10HV or more, such as Fig. 5；E class: again harden, the region again hardened is white macula, is around the D level region of black.These white maculas are non-tempered martensites, to corrosion no reaction, see Fig. 6.
Being positioned at the contact switch 8 above the most front and last detection cell often arranging detection cell is stationary contact reversing switch.The multiple contact switch 8 being positioned at the most front and last centre often arranging detection cell are movable contact command switch.Elevating movement cylinder 3 cylinder body is provided with bound bit switch 2.Set bearing block shell on the driving shaft coordinates in rolling between axle with driving, and namely bearing block shell both along driving axial plane to move back and forth, can meet again driving axle and rotate in the axis hole of bearing block shell.Cylinder 11 cylinder body that seesaws is provided with front and back limit switch 10.Elevating movement cylinder 3 is provided with speed-regulating valve 4.Detection cell is provided with temperature sensor and concentration sensor and temperature sensor and concentration sensor signal output part connects the signal input part of PLC.
It is to be noted that
1, inspection must be sequentially carried out inspection by 1 to pond, pond 9, and the time controls to have to comply with the time of regulation.
2, burn inspection should be undertaken by the reviewer through training.
3, the 1st pond needs heating to more than 50 degrees Celsius, so needing heating before test, needs closing switch after having tested.
It is to be understood that: although the word that the mentality of designing of the present invention is contrasted detailed by above-described embodiment describes; but these words describe; simply the simple text of mentality of designing of the present invention is described; rather than the restriction to mentality of designing of the present invention; any without departing from the combination of mentality of designing of the present invention, increase or amendment, each fall within protection scope of the present invention.
Claims (6)
1. a worm screw grinding burn detection method, is characterized in that:
nullThe first step: 9 detection cells (6) are lined up two rows and are positioned at detection cell framework，The back timber face, front and back of detection cell framework is guide rail (6)，Motor (1) drives the driving axle being positioned on guide rail (7) and motor (1) signal output part to be connect the signal input part of PLC by data wire，Drive end shaft be respectively provided with guide wheel and drive guide wheel to move forward and backward along guide rail (7)，Elevating movement cylinder (3) end is connected with set bearing block shell on the driving shaft and elevating movement cylinder (3) signal output part connects the signal input part of PLC by data wire，Piston rod in elevating movement cylinder (3) is connected with worm screw (5) by workpiece clamp and is driven worm screw (5) down or up，The cylinder (11) that seesaws is positioned horizontally in below axle sleeve by axle sleeve and the signal output part of the cylinder that seesaws (11) connects the signal input part of PLC by data wire，The piston rod end seesawed in cylinder (11) is connected with elevating movement cylinder (3) shell and drives elevating movement cylinder (3) transverse movement，Often row's detection cell mouth to guide rail (7) on be equipped with contact switch (8) and contact switch (8) signal output part and connect the signal input part of PLC by data wire；
Second step: add the alkalescence that concentration is 4-5% in (1) first detection cell and remove stearol, temperature >=50 DEG C, pH value > 10, time > 15 minutes, purpose is deoiled fat；Adding concentration in (2) second detection cells is the sodium hydrate aqueous solution of 4-6%, temperature 25 ± 0.5 DEG C, pH value 10-11.5, time > 3 minutes, and purpose is deoiled fat；Adding concentration in (3) the 3rd detection cells is the aqueous solution of nitric acid of 2-4%, temperature room temperature, pH value < 7, and second time 5-8, purpose is corroded；Adding concentration in (4) the 4th detection cells is the sodium hydrate aqueous solution of 4-6%, and temperature room temperature, pH value 11-12.5,5 seconds time, purpose goes acid；Adding concentration in (5) the 5th detection cells is the aqueous hydrochloric acid solution of 2-4%, temperature room temperature, pH value < 7, and second time 30-60, purpose is decoloured；Adding concentration in (6) the 6th detection cells is the sodium hydroxide solution of 4-6%, and temperature room temperature, pH value 11-12.5,5 seconds time, purpose goes acid；Adding concentration in (7) the 7th detection cells is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,3 minutes time, in purpose and acid；Adding concentration in (8) the 8th detection cells is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,5 seconds time, purpose lixiviating；Antirust oil is added in (9) the 9th detection cells,
Temperature room temperature, 1-3 minute, purpose was antirust；
3rd step: worm screw is clipped in workpiece clamp, the first detection cell heat go fat, the second detection cell cold rinse, the 3rd detection cell acid etching, the 4th detection cell cold rinse, the 5th detection cell acid etching, the 6th detection cell cold wash, in the 7th detection cell and, after the 8th detection cell cold wash, after drying up with hair-dryer, after entering the 9th detection cell immersion oil, take out worm screw:
A class: without grinding burn, surface of the work presents uniform Lycoperdon polymorphum Vitt；
B class: slight burns, grinding burn is discontinuous, narrower light color display；
D class: heavier grinding burn, the dark display that grinding burn is wider continuously；
E class: again harden, the region again hardened is white macula, is around the D level region of black.
2. worm screw grinding burn detection method according to claim 1, is characterized in that: being positioned at the contact switch (8) above the most front and last detection cell often arranging detection cell is stationary contact reversing switch.
3. worm screw grinding burn detection method according to claim 1, is characterized in that: the multiple contact switch (8) being positioned at the most front and last centre often arranging detection cell are movable contact command switch.
4. worm screw grinding burn detection method according to claim 1, is characterized in that: elevating movement cylinder (3) cylinder body is provided with bound bit switch (2).
5. worm screw grinding burn detection method according to claim 1, is characterized in that: set bearing block shell on the driving shaft coordinates in rolling between axle with driving.
6. worm screw grinding burn detection method according to claim 1, is characterized in that: the cylinder that seesaws (11) cylinder body is provided with front and back limit switch (10).
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| CN201310734725.9A CN103760092B (en) | 2013-12-27 | 2013-12-27 | Worm screw grinding burn detection method |
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| CN201310734725.9A CN103760092B (en) | 2013-12-27 | 2013-12-27 | Worm screw grinding burn detection method |
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| CN103760092A CN103760092A (en) | 2014-04-30 |
| CN103760092B true CN103760092B (en) | 2016-07-06 |
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| US10183377B2 (en) | 2015-12-08 | 2019-01-22 | Caterpillar Inc. | Method of standardizing grinder burn etch testing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4335615A (en) * | 1979-06-15 | 1982-06-22 | Dechema | Equipment for testing materials for stress corrosion cracking |
| CN101226135A (en) * | 2008-02-04 | 2008-07-23 | 中国海洋石油总公司 | Erosion simulation experiment method and apparatus |
| CN103192321A (en) * | 2012-01-10 | 2013-07-10 | 浙江大学 | Special automatic regulating device for taper error of centerless internal grinding machine |
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2013
- 2013-12-27 CN CN201310734725.9A patent/CN103760092B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4335615A (en) * | 1979-06-15 | 1982-06-22 | Dechema | Equipment for testing materials for stress corrosion cracking |
| CN101226135A (en) * | 2008-02-04 | 2008-07-23 | 中国海洋石油总公司 | Erosion simulation experiment method and apparatus |
| CN103192321A (en) * | 2012-01-10 | 2013-07-10 | 浙江大学 | Special automatic regulating device for taper error of centerless internal grinding machine |
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Address after: 314599 349 Fengxiang East Road, Wutong street, Tongxiang, Jiaxing, Zhejiang Patentee after: Zhejiang Taijiu Precision Machinery Co.,Ltd. Address before: No. 349, Fengxiang East Road, Wutong Street, Tongxiang City, Jiaxing City, Zhejiang Province, 314500 Patentee before: ESSOR PRECISION MACHINERY Co.,Ltd. |
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