CN103760092A - Worm grinding burn detecting method - Google Patents
Worm grinding burn detecting method Download PDFInfo
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- CN103760092A CN103760092A CN201310734725.9A CN201310734725A CN103760092A CN 103760092 A CN103760092 A CN 103760092A CN 201310734725 A CN201310734725 A CN 201310734725A CN 103760092 A CN103760092 A CN 103760092A
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Abstract
The invention relates to a worm grinding burn detecting method. The worm grinding burn detecting system comprises a PLC (programmable logic controller) and multiple detection pools, wherein the multiple detection pools are arranged in two rows and are positioned in a detection pool frame; the front and rear top beam surfaces of the detection pool frame are provided with guide rails, a stepping motor drives a drive shaft positioned on the guide rails, the signal output end of the stepping motor is connected with the signal input end of the PLC by virtue of a data line, and the two ends of the drive shaft are respectively provided with guiding wheels and can drive the guiding wheels to move back and forth along the guide rails; the tail end of a lifting moving air cylinder is connected with a baring base sleeved on the drive shaft in a shell manner, the signal output end of a lifting air cylinder is connected with the signal input end of the PLC by virtue of a data line, and a piston rod in the lifting moving air cylinder is connected with a worm by virtue of a workpiece clamp and can drive the worm to descend or ascend; front end rear moving air cylinders are horizontally positioned below a shaft sleeve by virtue of the shaft sleeve, the signal output end of the front moving air cylinder is connected with the signal input end of the PLC by virtue of a data line, the end parts of the piston rods in the front end rear moving air cylinders are connected with the lifting air cylinder in the shell manner, and the lifting air cylinder is driven to do transverse movement.
Description
Technical field
The present invention relates to a kind ofly can detect quickly and efficiently the worm screw grinding burn detection method whether processed worm screw face is ground burn, belong to worm screw detection method and manufacture field.
Background technology
When worm screw grinding parameter selects improper or cooling selection improper, during grinding, can manufacture secondary quenching and high tempering at surface of the work, thereby make to produce tension between He Ci top layer, top layer, cause the phenomenon that grinding crack occurs, this crackle had both been difficult to will detect fast, also cannot accurately determine burn rank.
Summary of the invention
Purpose of design: avoid the weak point in background technology, design and a kind ofly can detect quickly and efficiently the worm screw grinding burn detection method whether processed worm screw face is ground burn.
Design proposal: worm screw can produce a large amount of grinding heats in grinding process, the part liquid that is cooled is taken away, another part is conducted in the shallow top layer of workpiece, and workpiece surface temperature is raise, when producing in a large number, grinding heat can form tempering layer at tooth surface, when temperature reaches temperature of fusion, through the cooling formation secondary quenching of liquid coolant layer, thereby formation grinding burn, because worm screw grinding burn workpiece surface can form tempering layer, its textura epidermoidea is tempered martensite, and can there is corrosion reaction with acid in tempered martensite, the present invention adopts method design the application's detection system and the detection method of nitric acid corrosion according to this.
Technical scheme: a kind of worm screw grinding burn detection method, the first step: 1 to 9 detection cell is lined up two rows and is positioned at detection cell framework, the front and back back timber face of detection cell framework is guide rail, stepper motor drives the driving shaft and the stepper motor signal output part that are positioned on guide rail by data line, to connect the signal input part of PLC controller, driving shaft two ends are equipped with respectively guide wheel and are driven guide wheel to move forward and backward along guide rail, elevating movement cylinder end be enclosed within that bearing seat shell on driving shaft is connected and elevating movement air cylinder signal output terminal connects the signal input part of PLC controller by data line, piston rod in elevating movement cylinder is connected with worm screw by workpiece clamp and drives and on worm screw, falls or rise, the signal output part that the cylinder that seesaws is positioned at axle sleeve below and front fate dynamic air cylinder by axle sleeve level connects the signal input part of PLC controller by data line, the piston rod end seesawing in cylinder is connected with elevating movement cylinder shell and drives the transverse movement of elevating movement cylinder, on the right guide rail of every row's detection cell mouth, be equipped with contact switch and contact switch 8 signal output parts connect the signal input part of PLC controller by data line, second step: adding concentration in (1) first detection cell is the alkaline degrease agent of 4-5%, 50 ℃ of temperature > >, pH value > 10, time > 15 minutes, object degrease, in (2) second detection cells, adding concentration is the sodium hydrate aqueous solution of 4-6%, 25 ± 0.5 ℃ of temperature, pH value 10-11.5, time > 3 minutes, object degrease, in (3) the 3rd detection cells, adding concentration is the aqueous solution of nitric acid of 2-4%, temperature room temperature, pH value < 7, time 5-8 second, object corrosion, in (4) the 4th detection cells, adding concentration is the sodium hydrate aqueous solution of 4-6%, temperature room temperature, pH value 11-12.5,5 seconds time, object disacidify, in (5) the 5th detection cells, adding concentration is the aqueous hydrochloric acid solution of 2-4%, temperature room temperature, pH value < 7, time 30-60 second, object decolouring, in (6) the 6th detection cells, adding concentration is the sodium hydroxide solution of 4-6%, temperature room temperature, pH value 11-12.5,5 seconds time, object disacidify, in (7) the 7th detection cells, adding concentration is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,3 minutes time, object neutralizing acid, in (8) the 8th detection cells, adding concentration is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,5 seconds time, object lixiviating, in (9) the 9th detection cells, add rust preventive oil, temperature room temperature, 1-3 minute, object is antirust, the 3rd step: worm screw is clipped in workpiece clamp, at the hot degrease of the first detection cell, at the second detection cell cool flush, at the 3rd detection cell acid etching, at the 4th detection cell cool flush, at the 5th detection cell acid etching, at the 6th detection cell cold wash, in the 7th detection cell neutralization, after the 8th detection cell cold wash, after drying up with hair-dryer, enter and take out worm screw after the 9th detection cell immersion oil: category-A: without grinding burn, surface of the work presents uniform grey, category-B: slight burns, grinding burn is discontinuous, and narrower light color shows, D class: heavier grinding burn, grinding burn continuously wider dark color shows, E class: sclerosis again, the region of sclerosis is hickie again, is around the D level region of black.
The present invention compares with background technology, and the one, can complete rapidly the fast detecting to worm screw, can confirm rapidly again the rank of burn, accuracy of detection is high; The 2nd, system science, has started the precedent that worm screw adopts tempered martensite automatically to detect.
Accompanying drawing explanation
Fig. 1 is that the system master in worm screw grinding burn detection method looks schematic diagram.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is without grinding burn, and surface presents uniform grey.
Fig. 4 is slight burns, and grinding burn is discontinuous, and narrower light color shows.
Fig. 5 is heavier grinding burn, and grinding burn continuously wider dark color shows.
Fig. 6 hardens again, and the region of sclerosis is hickie again, is around the D level region of black.These hickies are tempered martensites not.
Embodiment
Embodiment 1: with reference to accompanying drawing 1-6.A kind of worm screw grinding burn detection method, the first step: 1 to 9 detection cell 6 is lined up two rows and is positioned at detection cell framework, the front and back back timber face of detection cell framework is guide rail 6, stepper motor 1 drives the driving shaft and stepper motor 1 signal output part that are positioned on guide rail 7 by data line, to connect the signal input part of PLC controller, driving shaft two ends are equipped with respectively guide wheel and are driven guide wheel to move forward and backward along guide rail 7, elevating movement cylinder 3 ends be enclosed within that bearing seat shell on driving shaft is connected and elevating movement cylinder 3 signal output parts connect the signal input part of PLC controller by data line, piston rod in elevating movement cylinder 3 is connected with worm screw 5 by workpiece clamp and drives and on worm screw 5, falls or rise, the signal output part that the cylinder 11 that seesaws is positioned at axle sleeve below and front fate dynamic air cylinder 11 by axle sleeve level connects the signal input part of PLC controller by data line, the piston rod end seesawing in cylinder 11 is connected with elevating movement cylinder 3 shells and drives 3 transverse movements of elevating movement cylinder, on the right guide rail 7 of every row's detection cell mouth, be equipped with contact switch 8 and contact switch 8 signal output parts connect the signal input part of PLC controller by data line, second step: adding concentration in (1) first detection cell is the alkaline degrease agent of 4-5%, 50 ℃ of temperature > >, pH value > 10, time > 15 minutes, object degrease, in (2) second detection cells, adding concentration is the sodium hydrate aqueous solution of 4-6%, 25 ± 0.5 ℃ of temperature, pH value 10-11.5, time > 3 minutes, object degrease, in (3) the 3rd detection cells, adding concentration is the aqueous solution of nitric acid of 2-4%, temperature room temperature, pH value < 7, time 5-8 second, object corrosion, in (4) the 4th detection cells, adding concentration is the sodium hydrate aqueous solution of 4-6%, temperature room temperature, pH value 11-12.5,5 seconds time, object disacidify, in (5) the 5th detection cells, adding concentration is the aqueous hydrochloric acid solution of 2-4%, temperature room temperature, pH value < 7, time 30-60 second, object decolouring, in (6) the 6th detection cells, adding concentration is the sodium hydroxide solution of 4-6%, temperature room temperature, pH value 11-12.5,5 seconds time, object disacidify, in (7) the 7th detection cells, adding concentration is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,3 minutes time, object neutralizing acid, in (8) the 8th detection cells, adding concentration is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,5 seconds time, object lixiviating, in (9) the 9th detection cells, add rust preventive oil, temperature room temperature, 1-3 minute, object is antirust, the 3rd step: worm screw is clipped in workpiece clamp, at the hot degrease of the first detection cell, at the second detection cell cool flush, at the 3rd detection cell acid etching, at the 4th detection cell cool flush, at the 5th detection cell acid etching, at the 6th detection cell cold wash, in the 7th detection cell neutralization, after the 8th detection cell cold wash, after drying up with hair-dryer, enter and take out worm screw after the 9th detection cell immersion oil: category-A: without grinding burn, surface presents uniform grey. see in Fig. 3 without burn area, category-B: slight burns, grinding burn is discontinuous, and narrower light color shows, it is not remarkable that this type of grinding burn reduces skin hardness, sees Fig. 4, D class: heavier grinding burn, grinding burn continuously wider dark color shows.This type of grinding burn reduces skin hardness 10HV or more, as Fig. 5; E class: sclerosis again, the region of sclerosis is hickie again, is around the D level region of black.These hickies are tempered martensites not, to no reaction of corrosion, see Fig. 6.
The contact switch 8 that is positioned at the most front of every row's detection cell and last detection cell top is stationary contact reversing switch.The most front and the last middle a plurality of contact switchs 8 that are positioned at every row's detection cell are moving contact command switch.Elevating movement cylinder 3 cylinder bodies are provided with bound bit switch 2.Be enclosed within to be to roll between bearing seat shell on driving shaft and driving shaft and coordinate, bearing seat shell both can move around along driving axial plane, can meet again driving shaft and rotate in the axis hole of bearing seat shell.Limit switch 10 before and after cylinder 11 cylinder bodies that seesaw are provided with.Elevating movement cylinder 3 is provided with speed-regulating valve 4.Detection cell is provided with the signal input part that temperature sensor and concentration sensor and temperature sensor and concentration sensor signal output part connect PLC controller.
It should be noted that: 1, check must be tested successively by pond 1 to pond 9, the time is controlled must the time up to specification.
2, burn check should be undertaken by the reviewer through training.
3, the 1st pond need to be heated to more than 50 degrees Celsius, so need heating before test, after having tested, needs closing switch.
It is to be understood that: although above-described embodiment is to the mentality of designing of the present invention detailed text description of contrasting; but these text descriptions; just 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 combination, increase or modification that does not exceed mentality of designing of the present invention, all falls within the scope of protection of the present invention.
Claims (6)
1. a worm screw grinding burn detection method, is characterized in that:
The first step: 1 to 9 detection cell (6) is lined up two rows and is positioned at detection cell framework, the front and back back timber face of detection cell framework is guide rail (7), stepper motor (1) drives the driving shaft and stepper motor (1) signal output part that are positioned on guide rail (7) by data line, to connect the signal input part of PLC controller, driving shaft two ends are equipped with respectively guide wheel and are driven guide wheel to move forward and backward along guide rail (7), elevating movement cylinder (3) end be enclosed within that bearing seat shell on driving shaft is connected and elevating movement cylinder (3) signal output part connects the signal input part of PLC controller by data line, piston rod in elevating movement cylinder (3) is connected and drives on worm screw (5) with worm screw (5) by workpiece clamp and falls or rise, the signal output part that the cylinder (11) that seesaws is positioned at axle sleeve below and front fate dynamic air cylinder (11) by axle sleeve level connects the signal input part of PLC controller by data line, the piston rod end seesawing in cylinder (11) is connected with elevating movement cylinder (3) shell and drives elevating movement cylinder (3) transverse movement, on the right guide rail (7) of every row's detection cell mouth, be equipped with contact switch (8) and contact switch (8) signal output part connects the signal input part of PLC controller by data line,
Second step: adding concentration in (1) first detection cell is the alkaline degrease agent of 4-5%, 50 ℃ of temperature > >, pH value > 10, time > 15 minutes, object degrease; In (2) second detection cells, adding concentration is the sodium hydrate aqueous solution of 4-6%, 25 ± 0.5 ℃ of temperature, pH value 10-11.5, time > 3 minutes, object degrease; In (3) the 3rd detection cells, adding concentration is the aqueous solution of nitric acid of 2-4%, temperature room temperature, pH value < 7, time 5-8 second, object corrosion; In (4) the 4th detection cells, adding concentration is the sodium hydrate aqueous solution of 4-6%, temperature room temperature, pH value 11-12.5,5 seconds time, object disacidify; In (5) the 5th detection cells, adding concentration is the aqueous hydrochloric acid solution of 2-4%, temperature room temperature, pH value < 7, time 30-60 second, object decolouring; In (6) the 6th detection cells, adding concentration is the sodium hydroxide solution of 4-6%, temperature room temperature, pH value 11-12.5,5 seconds time, object disacidify; In (7) the 7th detection cells, adding concentration is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,3 minutes time, object neutralizing acid; In (8) the 8th detection cells, adding concentration is the aqueous sodium carbonate of 4-6%, temperature room temperature, pH value 10-11.5,5 seconds time, object lixiviating; In (9) the 9th detection cells, add rust preventive oil, temperature room temperature, 1-3 minute, object is antirust;
The 3rd step: worm screw is clipped in workpiece clamp, at the hot degrease of the first detection cell, at the second detection cell cool flush, at the 3rd detection cell acid etching, at the 4th detection cell cool flush, at the 5th detection cell acid etching, at the 6th detection cell cold wash, in the 7th detection cell neutralization, after the 8th detection cell cold wash, after drying up with hair-dryer, enter and take out worm screw after the 9th detection cell immersion oil:
Category-A: without grinding burn, surface of the work presents uniform grey;
Category-B: slight burns, grinding burn is discontinuous, and narrower light color shows;
D class: heavier grinding burn, grinding burn continuously wider dark color shows;
E class: sclerosis again, the region of sclerosis is hickie again, is around the D level region of black.
2. worm screw grinding burn detection method according to claim 1, is characterized in that: the contact switch (8) that is positioned at the most front of every row's detection cell and last detection cell top is stationary contact reversing switch.
3. worm screw grinding burn detection method according to claim 1, is characterized in that: the most front and last middle a plurality of contact switchs (8) that are positioned at every row's detection cell are moving 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: be enclosed within to be to roll between bearing seat shell on driving shaft and driving shaft and coordinate.
6. worm screw grinding burn detection method according to claim 1, is characterized in that: limit switch (10) before and after the cylinder that seesaws (11) cylinder body is provided with.
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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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| CN103760092B CN103760092B (en) | 2016-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10183377B2 (en) | 2015-12-08 | 2019-01-22 | Caterpillar Inc. | Method of standardizing grinder burn etch testing |
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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. |