CN105021524A - Crack detecting method for surface of granite basic part of machine tool - Google Patents
Crack detecting method for surface of granite basic part of machine tool Download PDFInfo
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- CN105021524A CN105021524A CN201510472428.0A CN201510472428A CN105021524A CN 105021524 A CN105021524 A CN 105021524A CN 201510472428 A CN201510472428 A CN 201510472428A CN 105021524 A CN105021524 A CN 105021524A
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Abstract
The invention relates to the field of basic parts of machine tools, in particular to a crack detecting method for the surface of a granite basic part of a machine tool. The crack detecting method comprises the steps that the surface, to be detected, of the granite basic part is covered with volatile liquid; after preset time has passed, whether liquid residual bands exist on the surface to be detected is detected; if the liquid residual bands exist, it is judged that cracks exist on the surface to be detected. According to the crack detecting method for the surface of the granite basic part of the machine tool, by means of the characteristic that the volatile liquid is difficult to volatilize in the cracks, the situation of the cracks on the surface of the granite basic part can be detected, the detection efficiency is improved, the detection cost is reduced, and the detection steps are optimized; meanwhile, the volatile liquid has no corrosive effect on granite, and therefore damage to the surface of the granite basic part from the detection process is reduced.
Description
Technical field
The present invention relates to parts of machine tool field, be specifically related to a kind of crack detecting method of grouan basic part surface of lathe.
Background technology
General high precision machining tool, particularly PCB mechanical drilling machine, it adds the vibration produced man-hour will affect drill bit machining precision, cause the biased difference in larger hole, even can cause bit damage.Therefore, PCB mechanical drilling machine requires to possess the dynamic stability under high-speed motion state, good vibration resistance and absorbing, and there is the advantages such as distortion is little, good stability, vibration resistance are strong and thermal expansivity is little due to grouan, as a rule, and with reference to figure 1, grouan can the selected basic part such as lathe bed, crossbeam being used as PCB mechanical drilling machine.Wherein, Fig. 1 is the schematic diagram of the grouan basic part of PCB mechanical drilling machine.
But, if the surface of grouan basic part exists crackle, the performance of stone material self can be affected, the installation accuracy of grouan basic part namely can be made to be deteriorated, and then affect the machining precision of lathe; And, when crackle in lathe use procedure because the factor such as stress, vibration can progressively worsen, even cause basic part occur fracture.Therefore grouan as PCB mechanical drilling machine basic part use time, its surface does not allow to there is crackle.
In order to detect the crackle on grouan basic part surface, generally adopt development method, concrete steps comprise:
(1) first doubtfully there is cracks on grouan basic part surface, spraying is dissolved with the bleeding agent of coloured dye, and time of penetration is 5 ~ 15 minutes.If its surface exists crackle, bleeding agent will penetrate into crackle depths.
(2) bleeding agent of granite face is wiped with detersive.If its surface exists crackle, the bleeding agent of crackle depths can retain.
(3) at grouan basic part surface spraying bleeding agent place, spray development agent.If its surface exists crackle, the meeting of developer makes the bleeding agent of crackle depths be adsorbed onto granite face, and shows colored slight crack on surface.
Although above-mentioned development method can detect grouan basic part surface preferably whether there is crackle, but, the developer used in testing process can remain in grouan basic part surface, its cleaning difficulty is large, even can in order to clean out grouan basic part surface and excessively scratch, the assembly precision of grouan basic part and other part can be affected, and then affect the machining precision of lathe.And development method also has the shortcomings such as testing cost is high, detecting step is loaded down with trivial details, is unfavorable for whether detect grouan basic part surface on a large scale exists crackle.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of crack detecting method of grouan basic part surface of lathe, improves crack detection efficiency.
The technical solution adopted for the present invention to solve the technical problems is: the crack detecting method providing a kind of grouan basic part surface of lathe, comprises step:
At a surface coverage to be detected volatilizer of grouan basic part;
After a Preset Time, detect this surface to be detected and whether there is liquid residue band; If exist, judge that this surface to be detected exists crackle.
Wherein, preferred version is: before this surface coverage volatilizer to be detected, by clean for this surface clean to be detected.
Wherein, preferred version is, comprises in the mode of this surface coverage volatilizer to be detected: volatilizer is sprayed on this surface to be detected.
Wherein, preferred version is: this volatilizer is covered surface to be detected equably.
Wherein, preferred version is: before spraying volatilizer, surface to be detected is placed in level.
Wherein, preferred version is: this volatilizer is nytron system volatilizer.
Wherein, preferred version is: this nytron system volatilizer is 1 ~ 30 minute at the volatilizes on flawless grouan basic part surface.
Wherein, preferred version is: this nytron system volatilizer is industrial cleaning agent.
Wherein, preferred version is: this nytron system volatilizer is industrial spirit.
Wherein, preferred version is: this volatilizer is water system volatilizer.
Beneficial effect of the present invention is, compared with prior art, the present invention is by the crack detecting method on the grouan basic part surface of a kind of lathe of design, in crackle, the characteristic of volatilizing is difficult to by volatilizer, detect the cracks on grouan basic part surface, improve detection efficiency, reduce testing cost, optimum detection step; Meanwhile, volatilizer, to the corrosion-free effect of grouan, reduces testing process to the damage on grouan basic part surface.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of prior art PCB mechanical drilling machine;
Fig. 2 is the method schematic diagram of crack detection of the present invention;
Fig. 3 a is the design sketch that volatilizer of the present invention covers;
Fig. 3 b is the design sketch of volatilizer of the present invention volatilization;
Fig. 4 is the schematic diagram of the liquid residue band on the present invention surface to be detected.
Embodiment
Now by reference to the accompanying drawings, preferred embodiment of the present invention is elaborated.
As shown in Figure 2, the invention provides a kind of preferred embodiment of crack detecting method, wherein, Fig. 2 is the method schematic diagram of crack detection.
A kind of crack detecting method, particularly for the crackle on the grouan basic part surface of lathe, this detection method comprises step:
S01, a surface coverage to be detected volatilizer at grouan basic part;
S02, after a Preset Time, detect this surface to be detected and whether there is liquid residue band; If exist, judge that this surface to be detected exists crackle.
In step S01, also comprise step: before this surface coverage volatilizer to be detected, by clean for this surface clean to be detected.
Further, comprise in the mode of this surface coverage volatilizer to be detected: volatilizer is sprayed on this surface to be detected.
Further, this volatilizer is covered surface to be detected equably.
Further, before spraying volatilizer, surface to be detected is placed in level.
In step S02, Preset Time refers to that grouan basic part surface is in flawless situation, covers the volatilizes of volatilizer thereon.
Wherein, if grouan basic part surface exists crackle, the volatilizer covered thereon can infiltrate in crackle, and the volatilizes of the volatilizer in crackle is much slower than Preset Time.
In the present invention, the preferred high volatility of volatilizer, the solvent that corrosivity is low, can detect that whether surface to be detected exists liquid residue band, can not damage grouan basic part again at short notice.
Further, volatilizer is preferably nytron system volatilizer, as industrial cleaning agent and industrial spirit.Wherein, industrial cleaning agent is again agent for carbon hydrogen detergent, and it has, and high volatility, cost are low, the advantage such as non-corrosiveness, recoverable.
This nytron system volatilizer is 1 ~ 30 minute at the volatilizes on flawless grouan basic part surface, and volatilizes affects by the factor such as environment, cladding thickness; But, because the volatilizes of the nytron system volatilizer in crackle about has a few hours, therefore after a Preset Time, on the grouan basic part surface with crackle, can obviously observe liquid residue band.
Wherein, the volatilizes of this nytron system volatilizer in crackle is 2 ~ 5 hours.
Wherein, for accelerating detection time, the volatilizes of nytron system volatilizer can be improved, the volatilizer comprising the factor of controling environment, select volatility stronger.
Further, volatilizer is preferably water system volatilizer.
As shown in Fig. 3 a, Fig. 3 b and Fig. 4, the invention provides a kind of preferred embodiment of crack detecting method, wherein, Fig. 3 a is the design sketch that volatilizer covers, and Fig. 3 b is the design sketch of volatilizer volatilization, and Fig. 4 is the schematic diagram of the liquid residue band on surface to be detected.
With reference to figure 3a, cover a volatilizer 20 to be detected surperficial 11 of grouan basic part, because the surface to be detected of grouan basic part exists crackle 12, volatilizer 20 infiltrates in crackle 12.
With reference to figure 3b, after waiting for a Preset Time, the volatilizer of surperficial 11 20 to be detected volatilizees substantially, and the volatilizer 20 in crackle 12 still exists.
With reference to figure 4, owing to there is volatilizer 20 in crackle 12, overlook to be detected surperficial 11, can be observed its surface and there is liquid residue band, therefore judge that this to be detected surperficial 11 exists crackle 12.
1, as described above, be only preferred embodiment, and not for limiting the scope of the invention, all equivalences done according to the present patent application the scope of the claims change or modify, and are all the present invention and contain.
Claims (10)
1. the crack detecting method on the grouan basic part surface of lathe, is characterized in that, comprise step:
At a surface coverage to be detected volatilizer of grouan basic part;
After a Preset Time, detect this surface to be detected and whether there is liquid residue band; If exist, judge that this surface to be detected exists crackle.
2. crack detecting method according to claim 1, is characterized in that: before this surface coverage volatilizer to be detected, by clean for this surface clean to be detected.
3. crack detecting method according to claim 1, is characterized in that, comprises in the mode of this surface coverage volatilizer to be detected: volatilizer is sprayed on this surface to be detected.
4., according to the arbitrary described crack detecting method of claim 1 or 3, it is characterized in that: this volatilizer is covered surface to be detected equably.
5. crack detecting method according to claim 1, is characterized in that: before spraying volatilizer, surface to be detected is placed in level.
6. crack detecting method according to claim 1, is characterized in that: this volatilizer is nytron system volatilizer.
7. crack detecting method according to claim 6, is characterized in that: this nytron system volatilizer is 1 ~ 30 minute at the volatilizes on flawless grouan basic part surface.
8. crack detecting method according to claim 6, is characterized in that: this nytron system volatilizer is industrial cleaning agent.
9. crack detecting method according to claim 6, is characterized in that: this nytron system volatilizer is industrial spirit.
10. crack detecting method according to claim 1, is characterized in that: this volatilizer is water system volatilizer.
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| CN201510472428.0A CN105021524A (en) | 2015-08-04 | 2015-08-04 | Crack detecting method for surface of granite basic part of machine tool |
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| CN201510472428.0A CN105021524A (en) | 2015-08-04 | 2015-08-04 | Crack detecting method for surface of granite basic part of machine tool |
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Citations (8)
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| US3931733A (en) * | 1974-12-16 | 1976-01-13 | Alburger James R | Method and means of accelerating removal of background entrapments in the inspection penetrant process |
| CN1293758A (en) * | 1999-01-22 | 2001-05-02 | 蒂德检查裂痕设备两合公司 | Automatic flaw detection method for crack detection by dye penetration method |
| CN1540312A (en) * | 2003-10-27 | 2004-10-27 | 东风汽车有限公司 | Fatigue crack detection method |
| CN1932488A (en) * | 2005-09-15 | 2007-03-21 | 沪东中华造船(集团)有限公司 | Foam type dye check penetration liquid and producing process thereof |
| CN101303321A (en) * | 2008-04-14 | 2008-11-12 | 中原工学院 | Method for testing rock microcracks |
| CN101419213A (en) * | 2008-12-08 | 2009-04-29 | 浙江大学 | Bird egg crack detection device and method by utilizing volatile matter |
| CN102466644A (en) * | 2010-11-19 | 2012-05-23 | 江苏瑞特回转支承有限公司 | Penetrant testing method of opening defect on surface of workpiece |
| CN103558228A (en) * | 2013-11-14 | 2014-02-05 | 保定天威集团有限公司 | Leakage detecting agent for detecting leakage of weld joint in welding process and detection method |
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2015
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Patent Citations (8)
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|---|---|---|---|---|
| US3931733A (en) * | 1974-12-16 | 1976-01-13 | Alburger James R | Method and means of accelerating removal of background entrapments in the inspection penetrant process |
| CN1293758A (en) * | 1999-01-22 | 2001-05-02 | 蒂德检查裂痕设备两合公司 | Automatic flaw detection method for crack detection by dye penetration method |
| CN1540312A (en) * | 2003-10-27 | 2004-10-27 | 东风汽车有限公司 | Fatigue crack detection method |
| CN1932488A (en) * | 2005-09-15 | 2007-03-21 | 沪东中华造船(集团)有限公司 | Foam type dye check penetration liquid and producing process thereof |
| CN101303321A (en) * | 2008-04-14 | 2008-11-12 | 中原工学院 | Method for testing rock microcracks |
| CN101419213A (en) * | 2008-12-08 | 2009-04-29 | 浙江大学 | Bird egg crack detection device and method by utilizing volatile matter |
| CN102466644A (en) * | 2010-11-19 | 2012-05-23 | 江苏瑞特回转支承有限公司 | Penetrant testing method of opening defect on surface of workpiece |
| CN103558228A (en) * | 2013-11-14 | 2014-02-05 | 保定天威集团有限公司 | Leakage detecting agent for detecting leakage of weld joint in welding process and detection method |
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Effective date of registration: 20200630 Address after: 518000 workshop 5 / F, 1 / 2 / F, 14 / F, 17 / F, antuoshan hi tech Industrial Park, Xinsha Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN HAN'S CNC SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 518000 No. 9988 Shennan Avenue, Shenzhen, Guangdong, Nanshan District Applicant before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Applicant before: SHENZHEN HAN'S CNC SCIENCE AND TECHNOLOGY Co.,Ltd. |
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Application publication date: 20151104 |
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