CN102501014B - Processing method of limiting block of anti-countersink drill limiting device - Google Patents
Processing method of limiting block of anti-countersink drill limiting device Download PDFInfo
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- CN102501014B CN102501014B CN201110341331.8A CN201110341331A CN102501014B CN 102501014 B CN102501014 B CN 102501014B CN 201110341331 A CN201110341331 A CN 201110341331A CN 102501014 B CN102501014 B CN 102501014B
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Abstract
The invention relates to a processing method of a limiting block of an anti-countersink drill limiting device, which is characterized by comprising the following steps: 1) selecting a 45# round steel rod material, and check the material for bumps or cracks; 2) hardening and tempering; 3) clamping the material with a three-claw chuck of a lathe, and lathing hemispherical arc-shaped surfaces at the two ends of the limiting block; 4) lathing the external circle of the limiting block to meet technical requirements; 5) roughly processing an inner through hole according to drawing requirements; 6) cutting into single limiting blocks according to the broadband size of each limiting block; and 7) correcting the inner through hole with the spherical section as a reference plane, and finely lathing the through hole and an inner stepping hole, thereby completing the processing of the limiting block of the anti-countersink drill limiting device. The anti-countersink drill limiting device processed in the method can comply with technical indicators. Moreover, the processing speed is high, and the production efficiency can be improved.
Description
Technical field
The present invention relates to a kind of processing method of limited block of anti-counterbit stop, for processing the processing of the limited block of the anti-counterbit stop of dome-type cambered surface.
Background technology
At aviation field, often can use anti-counterbit stop, carry out the processing in airplane component hole, with anti-counterbit stop, can well guarantee the dimensional requirement between processed hole and parts.Therefore with anti-counterbit stop, by aviation field, be widely used.The most common anti-counterbit stop is comprised of counterbit, locking nut, limited block, screw, guiding, as shown in Figure 1.Its operation principle is to regulate the degree of depth between processed hole and part by limited block, then with locking nut, fixedly after limited block, carries out the processing in hole.Straight end face when the feature of the limited block in general anti-counterbit stop is both ends of the surface, but in order to adapt to the processing with the hole of dome-type cambered surface parts, need to produce the limited block of dome-type as shown in Figure 2, due to complex-shaped, location and processing are more difficult, in actual production, man-hour is long, and percent defective is high.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of processing method of limited block of anti-counterbit stop, and the anti-counterbit stop that the method processes not only meets technical indicator, and process velocity is fast, thereby has improved production efficiency.
For overcoming the above problems, concrete technical scheme of the present invention is as follows: a kind of processing method of limited block of anti-counterbit stop, is characterized in that comprising the following steps:
1) select the circular bar of 45# steel, observe part have or not collide with, crackle;
2) modifier treatment:
2.1) put into salt bath furnace and heat, heating-up temperature is 830 ± 10 ℃, insulation 25min;
2.2) then drop into and in saline slot, carry out coolingly, water temperature is 20～40 ℃;
2.3) with buck, clean;
2.4) quenching and tempering hardness is HRC28～32: first in stove, carry out tempering, temperature is 520 ℃ ± 10 ℃, and tempering time is 40min, then comes out of the stove that to carry out air cooling;
3) the three-jaw chuck clamping of lathe for material, simultaneously the dome-type cambered surface at turning limited block two ends;
4) cylindrical of turning limited block, reaches specification requirement;
5) again according to drawing requirement roughing inner via hole;
6) according to the broadband size of every limited block, be cut into single-piece limited block;
7) take spherical section as datum level, with endoporus through hole, carry out centering, and carry out finish turning through hole and interior shoulder hole, thereby complete the processing of the limited block of anti-counterbit stop.
The processing method of the limited block of this anti-counterbit stop adopts above-mentioned steps, makes hemispherical part itself carry out two fit processing, and then carries out separation, thereby guaranteeing, under the prerequisite of specification requirement, once can to process two, and convenient mounting and clamping, working (machining) efficiency are high.
Accompanying drawing explanation
Fig. 1 is the structural representation of former anti-counterbit stop.
Fig. 2 is the structural representation of present anti-counterbit stop limited block.
Fig. 3 is for processing the structural representation after ball-shaped surface.
Fig. 4 is for processing the structural representation after interior shoulder hole.
The specific embodiment
As shown in Figure 2, a kind of processing method of limited block of anti-counterbit stop, comprises the following steps:
1) select the circular bar of 45# steel, observe part have or not collide with, crackle;
2) modifier treatment:
2.1) put into salt bath furnace and heat, heating-up temperature is 830 ± 10 ℃, insulation 25min;
2.2) then drop into and in saline slot, carry out coolingly, water temperature is 20～40 ℃;
2.3) with buck, clean;
2.4) quenching and tempering hardness is HRC28～32: first in stove, carry out tempering, temperature is 520 ℃ ± 10 ℃, and tempering time is 40min, then comes out of the stove that to carry out air cooling;
3) the three-jaw chuck clamping of lathe for material, simultaneously the dome-type cambered surface at turning limited block two ends as shown in Figure 3;
4) cylindrical of turning limited block, reaches specification requirement;
5) again according to drawing requirement roughing inner via hole;
6) as shown in Figure 4, the broadband size according to every limited block, is cut into single-piece limited block;
7) take spherical section as datum level, with endoporus through hole, carry out centering, and carry out finish turning through hole and interior shoulder hole, thereby complete the processing of the limited block of anti-counterbit stop.
Claims (1)
1. a processing method for the limited block of anti-counterbit stop, is characterized in that comprising the following steps:
1) select the circular bar of 45# steel, observe part have or not collide with, crackle;
2) modifier treatment:
2.1) put into salt bath furnace and heat, heating-up temperature is 830 ± 10 ℃, insulation 25min;
2.2) then drop into and in saline slot, carry out coolingly, water temperature is 20～40 ℃;
2.3) with buck, clean;
2.4) quenching and tempering hardness is HRC28～32: first in stove, carry out tempering, temperature is 520 ℃ ± 10 ℃, and tempering time is 40min, then comes out of the stove that to carry out air cooling;
3) the three-jaw chuck clamping of lathe for material, simultaneously the dome-type cambered surface at turning limited block two ends;
4) cylindrical of turning limited block, reaches specification requirement;
5) again according to drawing requirement roughing inner via hole;
6) according to the broadband size of every limited block, be cut into single-piece limited block;
7) take spherical section as datum level, with endoporus through hole, carry out centering, and carry out finish turning through hole and interior shoulder hole, thereby complete the processing of the limited block of anti-counterbit stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341331.8A CN102501014B (en) | 2011-11-02 | 2011-11-02 | Processing method of limiting block of anti-countersink drill limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341331.8A CN102501014B (en) | 2011-11-02 | 2011-11-02 | Processing method of limiting block of anti-countersink drill limiting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102501014A CN102501014A (en) | 2012-06-20 |
| CN102501014B true CN102501014B (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110341331.8A Active CN102501014B (en) | 2011-11-02 | 2011-11-02 | Processing method of limiting block of anti-countersink drill limiting device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848148B (en) * | 2012-08-29 | 2015-06-17 | 苏州市意可机电有限公司 | Processing technology of limit block |
| CN102825439B (en) * | 2012-09-13 | 2015-01-21 | 沈阳飞机工业（集团）有限公司 | Machining method for profile countersink drill |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE684609C (en) * | 1938-05-29 | 1939-12-01 | Ludwig Steimetz Akt Ges A | Locking device for additional tools or stop rings on a mandrel or the shaft of tools |
| US2833168A (en) * | 1955-08-16 | 1958-05-06 | Lloyd I Nelson | Drill depth gauge |
| US4039266A (en) * | 1976-07-19 | 1977-08-02 | Connell John W O | Combination stop collar and cutting tool |
| CN2083524U (en) * | 1990-11-09 | 1991-08-28 | 韩晓良 | Rapid changeable return drill |
| CN1762652A (en) * | 2004-10-20 | 2006-04-26 | 日立比亚机械股份有限公司 | Tool positioning device and machining tool |
| CN201931132U (en) * | 2010-12-17 | 2011-08-17 | 成都飞机工业（集团）有限责任公司 | Reverse-drawing countersink drill |
-
2011
- 2011-11-02 CN CN201110341331.8A patent/CN102501014B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE684609C (en) * | 1938-05-29 | 1939-12-01 | Ludwig Steimetz Akt Ges A | Locking device for additional tools or stop rings on a mandrel or the shaft of tools |
| US2833168A (en) * | 1955-08-16 | 1958-05-06 | Lloyd I Nelson | Drill depth gauge |
| US4039266A (en) * | 1976-07-19 | 1977-08-02 | Connell John W O | Combination stop collar and cutting tool |
| CN2083524U (en) * | 1990-11-09 | 1991-08-28 | 韩晓良 | Rapid changeable return drill |
| CN1762652A (en) * | 2004-10-20 | 2006-04-26 | 日立比亚机械股份有限公司 | Tool positioning device and machining tool |
| CN201931132U (en) * | 2010-12-17 | 2011-08-17 | 成都飞机工业（集团）有限责任公司 | Reverse-drawing countersink drill |
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|---|---|
| CN102501014A (en) | 2012-06-20 |
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