CN114752740B - Pneumatic rolling tool for nanocrystallization of metal surface - Google Patents
Pneumatic rolling tool for nanocrystallization of metal surface Download PDFInfo
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- CN114752740B CN114752740B CN202210377849.5A CN202210377849A CN114752740B CN 114752740 B CN114752740 B CN 114752740B CN 202210377849 A CN202210377849 A CN 202210377849A CN 114752740 B CN114752740 B CN 114752740B
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- cylinder
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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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
Abstract
The invention relates to the technical field of metal surface mechanical treatment, and provides a pneumatic rolling tool for metal surface nanocrystallization. The method comprises the following steps: the sensor assembly is connected with the control assembly, the air cylinder assembly is connected with the tool head assembly in sequence, and the air circuit air pressure is controlled by the control assembly; and the control assembly compensates or unloads the air pressure of the air channel, regulates the downward pressure of the push rod to be a set value, and controls the downward pressure of the tool head assembly connected with the air cylinder assembly. According to the invention, the cylinder is connected with the tool head to output constant thrust, the rigidity of the whole structure is ensured by utilizing the peripheral auxiliary tool, and the external air passage is built to ensure that the air pressure of the cylinder is accurately controllable, so that the control of the downward pressure is realized.
Description
Technical Field
The invention belongs to the technical field of metal surface mechanical treatment, and particularly relates to a pneumatic rolling tool for metal surface nanocrystallization.
Background
Nanomaterials possess many superior physical and chemical properties and have been a scientific hotspot for the last decades. The nanomaterial has ultrahigh strength, excellent wear resistance and good plastic formability at low temperature and high strain rate, which means that the nanomaterial has potential important engineering application value.
The strong plastic deformation is an effective method for preparing the nano-structure metal material, and has the advantages of simple preparation process, no interface pollution, few pore defects and the like, so that the strong plastic deformation method is widely researched and applied. The mechanical grinding technology for metal surface is to press a hard pressing head into the metal surface and make the hard pressing head and the metal relatively move to generate sliding friction force, for example, chinese patent publication CN101555543a discloses a method and a device for nano-micro forming the metal material surface, and the hard pressing head is used to make the metal surface plastically deform, so as to promote the metal surface grains to be crushed to nano-scale. One of the most critical process parameters of the surface mechanical grinding technology is tool head downward pressure, the traditional surface mechanical grinding technology is to press the tool head into the metal surface through displacement control, and then the three-phase force sensor feeds back the force value, and the force value is not controllable, so that the controllable range of the process parameters is limited. In addition, the displacement control method has complex preamble work, requires accurate calibration of the initial distance between the tool head and the surface of the material, has higher requirement on the planeness of the surface of the material, and severely limits engineering application of the displacement control method.
Disclosure of Invention
In view of the above, the invention provides a pneumatic rolling tool for metal surface nanocrystallization, which solves the problems of limited controllable range of technological parameters, uncontrollable air pressure of an air cylinder for building an external air path and uncontrollable downward pressure in the prior art.
The invention provides a pneumatic rolling tool for nanocrystallization of a metal surface, which comprises the following components:
the sensor component, the control component, the air cylinder component and the tool head component are sequentially connected,
the sensor assembly and the air cylinder assembly are respectively connected with the control assembly, and the control assembly controls the air pressure of the air circuit;
the sensor assembly comprises a sensor seat 1 and a three-phase force sensor 2 arranged on the sensor seat, and the three-phase force sensor 2 is connected with the control assembly;
the control assembly comprises an air pressure control proportional valve 3, and the air pressure control proportional valve 3 is fixedly connected with the air cylinder assembly;
the cylinder assembly comprises a sensor mounting plate 4, a cylinder upper plate 5, a cylinder 6, a cylinder seat 7 and spline rods 10, wherein the sensor mounting plate 4 is arranged at the upper part of the cylinder upper plate 5, the cylinder seat 7 is of an H-shaped hollow supporting structure, the cylinder upper plate 5 is arranged at the top of the cylinder seat 6, the cylinder 6 is fixed at the lower part of the cylinder upper plate 5 and is accommodated in the hollow interior of the cylinder seat 7, and two spline rods 10 are embedded into the two supporting legs of the H-shaped hollow supporting structure;
the tool head assembly comprises a cylinder connecting nut 8, a compression flange 9, a guide seat 11, a tool head mounting seat 12 and a tool head 13 which are sequentially connected, wherein the upper part of the cylinder connecting nut 8 is connected with a push rod of the cylinder 6, the lower part of the cylinder connecting nut 8 is connected with the upper side of the guide seat 11 through the compression flange 9, slotted holes matched with a spline rod 10 in the cylinder assembly for guiding are formed in two ends of the upper side of the guide seat 11, the tool head mounting seat 12 is mounted on the lower side of the guide seat 11, the tool head 13 is mounted on the lower side of the tool head mounting seat 12, and the spline rod 10 is in sliding fit with the guide seat 11 so as to guide the tool head assembly on the cylinder assembly;
when the initial push rod downward pressure is given, the cylinder 6 drives the tool head 13 at the lower end to contact with the metal surface, the three-phase force sensor 2 receives the reaction force of the workpiece from the tool head assembly and feeds back the reaction force to the control assembly, the control assembly compensates or unloads the air pressure of the air path, the push rod downward pressure is regulated and controlled to be a set value, and the downward pressure of the tool head assembly connected with the cylinder assembly is controlled.
Further, the cylinder 6 is an ISO15552 double-acting standard cylinder.
Further, the tool bit mounting seat 12 is a hollow cylinder, and comprises an external screw cap and an internal screw compression spring, and is coaxially mounted with the tool bit 13, and after the top of the tool bit is inserted into the tool bit mounting seat 12, the tool bit 13 is fixed by tightening the external screw cap.
Further, the tool head 13 is a rod-shaped cylinder, and a hemispherical hard alloy grinding head is embedded into the bottom of the tool head.
Compared with the prior art, the invention has the beneficial effects that:
1. the cylinder is connected with the tool head to output constant thrust, so that the controllable range of the technological parameters is not limited;
2. the rigidity of the whole structure is ensured by using a peripheral auxiliary tool;
3. and an external air passage is built, so that the air pressure of the air cylinder is accurately controllable, and the control of the downward pressure is realized.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of a pneumatic rolling tool for nanocrystallization of metal surfaces provided by the invention;
FIG. 2 is a schematic diagram of a three-phase force sensor according to the present invention;
FIG. 3 is a schematic diagram of the pneumatic control proportional valve according to the present invention;
FIG. 4 is a schematic view of a cylinder block according to the present invention;
fig. 5 is a schematic diagram of an ISO15552 double acting standard cylinder structure provided by the present invention;
fig. 6 is a schematic structural view of a rolling tool head provided by the invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
A pneumatic rolling tool for nanocrystallization of a metal surface according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the overall structure of a pneumatic rolling tool for metal surface nanocrystallization provided by the invention.
As shown in fig. 1, the pneumatic rolling tool includes: the sensor assembly is connected with the control assembly, the air channel air pressure is controlled by the control assembly, and the control assembly is connected with the air cylinder assembly;
FIG. 2 is a schematic diagram of a three-phase force sensor according to the present invention; fig. 3 is a schematic structural diagram of the pneumatic control proportional valve provided by the invention.
The sensor assembly comprises a sensor seat 1 and a three-phase force sensor 2 arranged on the sensor seat, and the three-phase force sensor 2 is connected with the control assembly;
the sensor seat 1 is a cuboid with a cylindrical boss at the top and equal length and width, the bottom of the cuboid is used for installing the three-phase force sensor 2, and the cylindrical boss at the top is used for being connected with a machine tool spindle.
The three-phase force sensor 2 is consistent with the sensor seat 1 in length and width, the upper part of the three-phase force sensor is connected with the sensor seat 1, and the lower part of the three-phase force sensor is connected with the air pressure control proportional valve 3 and is used for measuring the three-phase component force of the whole tool in real time.
The air pressure control proportional valve 3 is a cuboid with equal length and width, the upper part of the air pressure control proportional valve is connected with the three-phase force sensor 2, and the lower part of the air pressure control proportional valve is fixedly connected with the air cylinder assembly and is used for regulating and controlling air pressure of an air path;
the control assembly comprises an air pressure control proportional valve 3, and the air pressure control proportional valve 3 is fixedly connected with the air cylinder assembly;
fig. 4 is a schematic structural view of a cylinder block according to the present invention.
The cylinder assembly comprises a sensor mounting plate 4, a cylinder upper plate 5, a cylinder 6, a cylinder seat 7 and spline rods 10, wherein the sensor mounting plate 4 is arranged at the upper part of the cylinder upper plate 5, the cylinder seat 7 is of an H-shaped hollow supporting structure, the cylinder upper plate 5 is arranged at the top of the cylinder seat 6, the cylinder 6 is fixed at the lower part of the cylinder upper plate 5 and is accommodated in the hollow interior of the cylinder seat 7, and the two spline rods 10 are embedded into the interiors of two supporting legs of the H-shaped hollow supporting structure;
the sensor mounting plate 4 and the cylinder upper plate 5 are cuboid, the length and the width of the sensor mounting plate are equal, the upper part of the sensor mounting plate 4 is connected with the air pressure control proportional valve 3, the lower part of the sensor mounting plate is connected with the cylinder upper plate 5, and the lower part of the cylinder upper plate 5 is connected with the cylinder seat 7.
The tool head assembly comprises a cylinder connecting nut 8, a compression flange 9, a guide seat 11, a tool head mounting seat 12 and a tool head 13 which are sequentially connected, wherein the upper part of the cylinder connecting nut 8 is connected with a push rod of a cylinder 6, the lower part of the cylinder connecting nut 8 is connected with the upper side of the guide seat 11 through the compression flange 9, slotted holes matched with and guided by spline rods 10 in the cylinder assembly are formed in two ends of the upper side of the guide seat 11, the tool head mounting seat 12 is mounted on the lower side of the guide seat 11, the tool head 13 is mounted on the lower side of the tool head mounting seat 12, and the spline rods 10 are in sliding fit with the guide seat 11 so as to realize the guiding of the tool head assembly on the cylinder assembly;
when the initial pushing rod downward pressure is given, the cylinder 6 drives the lower end tool head 13 to contact with the metal surface, the three-phase force sensor 2 receives the workpiece reaction force from the tool head assembly and feeds back the workpiece reaction force to the control assembly, the control assembly compensates or unloads the air pressure of the air path, the pushing rod downward pressure is regulated and controlled to be a set value, and the downward pressure of the tool head assembly connected with the cylinder assembly is controlled.
Fig. 5 is a schematic diagram of an ISO15552 double acting standard cylinder structure provided by the present invention.
The cylinder seat 7 adopts an H-shaped hollow supporting structure, the cylinder 6 is an ISO15552 double-acting standard cylinder and is arranged in the middle of the cylinder seat 7, the spline rod 10 is a rod-shaped cylinder with an axial key groove, and the guide seat 11 is a cuboid. The cylinder push rod is connected with the guide seat 11 through the cylinder connecting nut 8 and the compression flange 9, the axial load is transmitted, the upper part of the spline rod is embedded into the two sides of the cylinder seat, and the lower part of the spline rod is connected with the guide seat 11, so that the guide seat 11 can be driven to axially move and bear a certain radial load.
Fig. 6 is a schematic structural view of a rolling tool head provided by the invention.
The tool head mounting seat 12 is a hollow cylinder and comprises an external screw cap and an internal thread pressure spring, the tool head mounting seat 12 and the tool head 13 are coaxially arranged, and after the tool head top is inserted into the tool head mounting seat 12, the tool head 13 is fixed by screwing the external screw cap.
The tool head 13 is a rod-shaped cylinder, and the bottom of the tool head is embedded with a hemispherical hard alloy grinding head.
When the tool head assembly works, after the three-phase force sensor 2 in the sensor assembly receives the workpiece reaction force of the tool head assembly conducted by the air cylinder assembly, the reaction force is timely fed back to the control assembly, and the control assembly controls the displacement of the push rod of the air cylinder assembly, so that the displacement of the air cylinder assembly connected with the air cylinder assembly is controlled. The cylinder is connected with the tool head to output constant thrust, so that the controllable range of the technological parameters is not limited, an external air passage is built, the air pressure of the cylinder is accurately controllable, and the control of the downward pressure is realized.
Any combination of the above optional solutions may be adopted to form an optional embodiment of the present application, which is not described herein in detail.
Those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments is modified or some technical features thereof are replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (4)
1. The pneumatic rolling tool for nanocrystallization of the metal surface is characterized by comprising a sensor assembly, a control assembly, an air cylinder assembly and a tool head assembly which are sequentially connected;
the sensor assembly and the air cylinder assembly are respectively connected with the control assembly, and the control assembly controls the air pressure of the air circuit;
the sensor assembly comprises a sensor seat (1) and a three-phase force sensor (2) arranged on the sensor seat, and the three-phase force sensor (2) is connected with the control assembly;
the control assembly comprises an air pressure control proportional valve (3), and the air pressure control proportional valve (3) is fixedly connected with the air cylinder assembly;
the cylinder assembly comprises a sensor mounting plate (4), a cylinder upper plate (5), a cylinder (6), a cylinder seat (7) and spline rods (10), wherein the sensor mounting plate (4) is arranged on the upper portion of the cylinder upper plate (5), the cylinder seat (7) is of an H-shaped hollow supporting structure, the cylinder upper plate (5) is arranged on the top of the cylinder seat (7), the cylinder (6) is fixed on the lower portion of the cylinder upper plate (5) and is accommodated in the hollow interior of the cylinder seat (7), and the two spline rods (10) are embedded into the two supporting legs of the H-shaped hollow supporting structure;
the tool head assembly comprises a cylinder connecting nut (8), a compression flange (9), a guide seat (11), a tool head mounting seat (12) and a tool head (13) which are sequentially connected, wherein the upper part of the cylinder connecting nut (8) is connected with a push rod of the cylinder (6), the lower part of the cylinder connecting nut (8) is connected with the upper side of the guide seat (11) through the compression flange (9), slotted holes matched with and guided by spline rods (10) in the cylinder assembly are formed in the two ends of the upper side of the guide seat (11), the tool head mounting seat (12) is mounted on the lower side of the guide seat (11), and the spline rods (10) are in sliding fit with the guide seat (11) so as to realize the guide of the tool head assembly on the cylinder assembly;
when the initial push rod downward pressure is given, the cylinder (6) drives the lower end of the tool head (13) to be in contact with the metal surface, the three-phase force sensor (2) receives the reaction force of a workpiece from the tool head assembly and feeds the reaction force back to the control assembly, the control assembly compensates or unloads the air circuit air pressure, the push rod downward pressure is regulated and controlled to be a set value, and the downward pressure of the tool head assembly connected with the cylinder assembly is controlled.
2. Pneumatic rolling tool for nanocrystallization of metal surfaces according to claim 1, characterized in that the cylinder (6) is an ISO15552 double acting standard cylinder.
3. Pneumatic rolling tool for nanocrystallization of metal surfaces according to claim 1, characterized in that the tool head mounting seat (12) is a hollow cylinder comprising an external screw cap and an internal threaded compression spring, coaxially mounted with the tool head (13), the tool head (13) being fixed by tightening the external screw cap after the tool head top is inserted into the tool head mounting seat (12).
4. Pneumatic rolling tool for nanocrystallization of metal surfaces according to claim 1, characterized in that the tool head (13) is a rod-like cylinder, the tool head bottom being embedded with a hemispherical cemented carbide rolling head.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210377849.5A CN114752740B (en) | 2022-04-12 | 2022-04-12 | Pneumatic rolling tool for nanocrystallization of metal surface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210377849.5A CN114752740B (en) | 2022-04-12 | 2022-04-12 | Pneumatic rolling tool for nanocrystallization of metal surface |
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| CN114752740A CN114752740A (en) | 2022-07-15 |
| CN114752740B true CN114752740B (en) | 2023-05-23 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102689123A (en) * | 2012-06-14 | 2012-09-26 | 哈尔滨工业大学 | Rolling head and method for realizing re-nanocrystallization welding by adopting same |
| CN106929777A (en) * | 2017-03-03 | 2017-07-07 | 中国人民解放军火箭军工程大学 | Surface strengthening method of metal material based on blending surface nanocrystallization technology |
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| JP3462315B2 (en) * | 1994-09-13 | 2003-11-05 | Ｎｏｋ株式会社 | Manufacturing method of sensor element |
| AU2003263136A1 (en) * | 2003-08-13 | 2005-03-07 | Technische Universitat Dresden | Method for producing internally or externally profiled rings and arrangement therefor |
| CN102329937A (en) * | 2011-08-20 | 2012-01-25 | 中国人民解放军装甲兵工程学院 | Quantitative part surface nanorization device based on electrohydraulic servo control |
| CN105689959A (en) * | 2016-04-26 | 2016-06-22 | 吉林大学 | Ultrasonic surface rolling finishing feedback system capable of automatically regulating and controlling static pressure |
| CN105855792A (en) * | 2016-06-16 | 2016-08-17 | 吉林大学 | Ultrasonic surface rolling and pressing device with controllable time-varying static pressure |
| CN106670723B (en) * | 2016-08-26 | 2019-05-17 | 山东华云机电科技有限公司 | A kind of profiled metal bore work making Nano surface processing unit (plant) and its application |
| CN112593058B (en) * | 2020-11-27 | 2022-09-09 | 青岛理工大学 | Shaft part surface strengthening device capable of realizing constant pressure self-balance and machine tool |
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2022
- 2022-04-12 CN CN202210377849.5A patent/CN114752740B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689123A (en) * | 2012-06-14 | 2012-09-26 | 哈尔滨工业大学 | Rolling head and method for realizing re-nanocrystallization welding by adopting same |
| CN106929777A (en) * | 2017-03-03 | 2017-07-07 | 中国人民解放军火箭军工程大学 | Surface strengthening method of metal material based on blending surface nanocrystallization technology |
Non-Patent Citations (1)
| Title |
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| 对纳米结构金属材料的塑性变形制备技术分析;王婷翌;;中国金属通报(第11期);215-216 * |
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