CN108176951B - Bolt R arc cold pressing strengthening device - Google Patents
Bolt R arc cold pressing strengthening device Download PDFInfo
- Publication number
- CN108176951B CN108176951B CN201711464972.6A CN201711464972A CN108176951B CN 108176951 B CN108176951 B CN 108176951B CN 201711464972 A CN201711464972 A CN 201711464972A CN 108176951 B CN108176951 B CN 108176951B
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- Prior art keywords
- bolt
- rolling
- head
- rolling head
- base
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
- B23P9/02—Treating or finishing by applying pressure, e.g. knurling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Jigs For Machine Tools (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a bolt R arc cold pressing strengthening device, which comprises: the base, bolt constant head tank and rolling head constant head tank have been seted up to the base, the base mounting is in drilling machine bed body upper surface, bolt constant head tank bottom inlays and has displacement sensor, rolling head constant head tank's bottom surface is provided with pressure sensor, the bolt, the coupling mechanism of bolt sets up in the bolt constant head tank, clamping mechanism fastens the nut of bolt, clamping mechanism up end is connected with the drilling machine main shaft, the rolling head, the head of rolling head sets up in the rolling head constant head tank, the afterbody of rolling head is provided with the recess, inlay on the recess has the ball, the ball corresponds the setting and is in the R angular position department of bolt, the invention can be accurate through displacement sensor, pressure sensor detection whole roll extrusion in-process pressure and the degree of depth of rolling, can improve the machining precision.
Description
Technical Field
The invention relates to a bolt R-arc cold pressing strengthening device, and belongs to the field of deep processing of fasteners.
Background
The high-strength bolts are generally only subjected to static mechanical property tests in China, and most of the tests can meet the requirements of national standard GB/T3098.1. But the fatigue resistance is quite different in the dynamic test, the performance can not be accurately controlled,
at present, almost all aviation fastener bolts need to be subjected to under-head fillet rolling, but the originally adopted manual rolling mode cannot control the pressure time, the product performance is unstable and other bad conditions, and the general aviation fastener R angle rolling technology is manually modified, is unstable in operation and cannot control the pressure and rolling accurate time.
Disclosure of Invention
The invention aims to provide the R-arc cold-pressing strengthening device for the bolts, which solves the problems, and has the advantages of simple structure and strong practicability.
In order to achieve the above object, the present invention provides a bolt R-arc cold-pressing reinforcing apparatus, comprising: the base, bolt constant head tank and rolling head constant head tank have been seted up to the base, base mounting is in drilling machine bed body upper surface, bolt constant head tank bottom surface inlays there is displacement sensor, the bottom surface of rolling head constant head tank is provided with pressure sensor, the bolt, the coupling mechanism setting of bolt is in the bolt constant head tank, clamping mechanism fastens the nut of bolt, the clamping mechanism up end is connected with the drilling machine main shaft, the rolling head, the head setting of rolling head is in the rolling head constant head tank, the afterbody of rolling head is provided with the recess, it has the ball to inlay on the recess, the ball corresponds the setting and is in the R angular position department of bolt, contact switch sets up on the inner wall of bolt constant head tank.
In the bolt R arc cold-pressing strengthening device, a fixed block is arranged between the bolt and the base, and the fixed block is embedded in the base.
In the bolt R arc cold pressing strengthening device, when the contact switch detects the bolt, the bottom of the bolt is contacted with the displacement sensor.
In the bolt R arc cold pressing strengthening device, the rolling head positioning groove is sleeved on the inner side of the rolling head, and lubricating grease is arranged.
In the bolt R arc cold-pressing strengthening device, the bolt is vertically downwards placed, an included angle is formed between the rolling head and the bolt, and the included angle is 30-45 degrees.
In the bolt R-arc cold-pressing strengthening device, when the ball is contacted with the R angle of the bolt, the head of the rolling head is contacted with the pressure sensor.
In the bolt R arc cold pressing strengthening device, the rolling heads are mutually perpendicular to the rolling heads through the pressing blocks.
The beneficial effects of the invention are as follows: the bolt R arc cold pressing strengthening device can accurately detect rolling pressure and rolling depth in the whole rolling process through the displacement sensor and the pressure sensor, and can improve machining precision; the problem of the aviation fastener rolling R angle technology is solved, so that the fatigue resistance of the product is greatly improved, and the requirement of product performance stability is met; through intelligent design, intensity of labour has been alleviateed, production efficiency has been improved.
Drawings
Fig. 1 is a schematic structural diagram of a cold-pressing reinforcing device for an R-arc bolt according to an embodiment of the present invention.
The components of the drawings are marked as follows: 1. a clamping mechanism; 2. a base; 3. a contact switch; 4. a displacement sensor; 5. a pressure sensor; 6. a fixed block; 7. a bolt; 8. a ball; 9. a rolling head; 10. a drilling machine spindle; 11. a bolt positioning groove; 12. a rolling head positioning groove; 13. and (5) compacting the block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
The invention will be further described with reference to the accompanying drawings, as shown in fig. 1, a cold-pressing reinforcing device for R-arc of bolt according to the invention comprises: the clamping mechanism 1, the base 2, the contact switch 3, the bolt 7 and the rolling head 9.
Specifically, bolt positioning groove 11 and rolling head positioning groove 12 have been seted up to base 2, base 2 installs at drilling machine bed body upper surface, displacement sensor 4 has been inlayed to bolt positioning groove 11 bottom surface, rolling head positioning groove 12's bottom surface is provided with pressure sensor 5, the coupling mechanism of bolt 7 sets up in the bolt positioning groove 11, clamping mechanism 1 fastens the nut of bolt 7, clamping mechanism 1 up end is connected with drilling spindle 10, rolling head 9's head sets up in the rolling head positioning groove 12, rolling head 9's afterbody is provided with the recess, it has ball 8 to inlay on the recess, ball 8 corresponds the setting and is in bolt 7's R angular position department, contact switch 3 sets up on bolt positioning groove 11's the inner wall.
Further, a fixed block 6 is arranged between the bolt 7 and the base 2, the fixed block 6 is embedded in the base 2, and the rolling head 9 is perpendicular to the rolling head 9 through a pressing block 13.
In one embodiment of the invention, when the contact switch 3 detects the bolt 7, the bottom of the bolt 7 is in contact with the displacement sensor 4, the rolling head positioning groove 12 is sleeved on the inner side of the rolling head 9, lubricating grease is arranged, the bolt 7 is vertically downwards arranged, an included angle is formed between the rolling head 9 and the bolt 7, the included angle is 30-45 degrees, and when the ball 8 is in contact with the R angle of the bolt 7, the head of the rolling head 9 is in contact with the pressure sensor 5.
During operation, the corresponding ball 8 is selected according to the diameter of the bolt 7, the bolt 7 is fixed on the clamping mechanism 1, then the drilling spindle 10 moves downwards with the bolt 7, when the contact switch 3 detects the bolt 7, the movement is stopped, the displacement sensor 4 just contacts with the bottom of the bolt 7, the rolling head 9 contacts with the pressure sensor 5, the ball 8 at the top of the rolling head 9 contacts with the R arc of the bolt 7, then the drilling spindle 10 drives the clamping mechanism 1 to rotate, the bolt 7 rotates along with the clamping mechanism 1, the base 2 does not move, during rotation, the ball 8 rolls the bolt 7, the pressure sensor 5 and the displacement sensor 4 can detect the pressure and the rolling depth of the rolling head 9, and the rolling can be automatically set according to the technological requirements to reach the rolling requirement.
In summary, the bolt R arc cold pressing strengthening device can accurately detect the rolling pressure and the rolling depth in the whole rolling process through the displacement sensor and the pressure sensor, and can improve the machining precision; the problem of the aviation fastener rolling R angle technology is solved, so that the fatigue resistance of the product is greatly improved, and the requirement of product performance stability is met; through intelligent design, intensity of labour has been alleviateed, production efficiency has been improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. The utility model provides a bolt R arc cold rolling reinforcing apparatus which characterized in that includes:
the base (2), bolt positioning groove (11) and rolling head positioning groove (12) are arranged on the base (2), the base (2) is arranged on the upper surface of the drilling machine bed body, a displacement sensor (4) is inlaid on the bottom surface of the bolt positioning groove (11), a pressure sensor (5) is arranged on the bottom surface of the rolling head positioning groove (12),
a bolt (7), wherein a connecting mechanism of the bolt (7) is arranged in the bolt positioning groove (11),
the clamping mechanism (1), the nut of the bolt (7) is fastened by the clamping mechanism (1), the upper end surface of the clamping mechanism (1) is connected with a drilling spindle (10),
the head of the rolling head (9) is arranged in the rolling head positioning groove (12), the tail of the rolling head (9) is provided with a groove, a ball (8) is inlaid on the groove, the ball (8) is correspondingly arranged at the R angle position of the bolt (7),
the contact switch (3) is arranged on the inner wall of the bolt positioning groove (11).
2. The bolt R arc cold rolling strengthening device according to claim 1, wherein: a fixed block (6) is arranged between the bolt (7) and the base (2), and the fixed block (6) is embedded in the base (2).
3. The bolt R arc cold rolling strengthening device according to claim 1, wherein: when the contact switch (3) detects the bolt (7), the bottom of the bolt (7) is in contact with the displacement sensor (4).
4. The bolt R arc cold rolling strengthening device according to claim 1, wherein: the rolling head positioning groove (12) is sleeved on the inner side of the rolling head (9) and is provided with lubricating grease.
5. The bolt R arc cold rolling strengthening device according to claim 1, wherein: the bolt (7) is vertically downwards arranged, an included angle is formed between the rolling head (9) and the bolt (7), and the included angle is 30-45 degrees.
6. The bolt R arc cold rolling strengthening device according to claim 1, wherein: when the ball (8) touches the R angle of the bolt (7), the head of the rolling head (9) contacts the pressure sensor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711464972.6A CN108176951B (en) | 2017-12-28 | 2017-12-28 | Bolt R arc cold pressing strengthening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711464972.6A CN108176951B (en) | 2017-12-28 | 2017-12-28 | Bolt R arc cold pressing strengthening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108176951A CN108176951A (en) | 2018-06-19 |
| CN108176951B true CN108176951B (en) | 2023-08-18 |
Family
ID=62548727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711464972.6A Active CN108176951B (en) | 2017-12-28 | 2017-12-28 | Bolt R arc cold pressing strengthening device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108176951B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259955Y (en) * | 1995-08-16 | 1997-08-20 | 顾中灼 | Machine for rolling and strengthening fixation element on its angle arc |
| JP2002301658A (en) * | 2001-04-04 | 2002-10-15 | Fuji Heavy Ind Ltd | Fillet roll machine |
| CN102091836A (en) * | 2010-12-15 | 2011-06-15 | 贵州大学 | Precise control device for rolling force of lower fillet of high-strength bolt head |
| CN202240360U (en) * | 2011-09-20 | 2012-05-30 | 山东美陵化工设备股份有限公司 | R-arc cold rolling strengthening device for bolt |
| CN105945510A (en) * | 2016-05-19 | 2016-09-21 | 华南理工大学 | Processing device for reinforcing surface rolling |
| CN206662647U (en) * | 2017-04-17 | 2017-11-24 | 贵州博泰自动化科技有限公司 | Roll fixture and fillet automatic rolling machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6662612B1 (en) * | 2002-06-03 | 2003-12-16 | Huck International, Inc. | Method and apparatus for fillet formation under the head of a headed pin type fastener |
-
2017
- 2017-12-28 CN CN201711464972.6A patent/CN108176951B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259955Y (en) * | 1995-08-16 | 1997-08-20 | 顾中灼 | Machine for rolling and strengthening fixation element on its angle arc |
| JP2002301658A (en) * | 2001-04-04 | 2002-10-15 | Fuji Heavy Ind Ltd | Fillet roll machine |
| CN102091836A (en) * | 2010-12-15 | 2011-06-15 | 贵州大学 | Precise control device for rolling force of lower fillet of high-strength bolt head |
| CN202240360U (en) * | 2011-09-20 | 2012-05-30 | 山东美陵化工设备股份有限公司 | R-arc cold rolling strengthening device for bolt |
| CN105945510A (en) * | 2016-05-19 | 2016-09-21 | 华南理工大学 | Processing device for reinforcing surface rolling |
| CN206662647U (en) * | 2017-04-17 | 2017-11-24 | 贵州博泰自动化科技有限公司 | Roll fixture and fillet automatic rolling machine |
Non-Patent Citations (1)
| Title |
|---|
| 管其明,王自勤,余述凡.高强度螺栓圆角冲击滚压技术.航空工程与维修.1998,(03),第19-20页. * |
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| Publication number | Publication date |
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| CN108176951A (en) | 2018-06-19 |
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