CN112342593A - School bus engine hood electrophoresis quality improving method - Google Patents
School bus engine hood electrophoresis quality improving method Download PDFInfo
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- CN112342593A CN112342593A CN202011105718.9A CN202011105718A CN112342593A CN 112342593 A CN112342593 A CN 112342593A CN 202011105718 A CN202011105718 A CN 202011105718A CN 112342593 A CN112342593 A CN 112342593A
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- electrophoresis
- school bus
- stay bar
- hood
- limit
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/22—Servicing or operating apparatus or multistep processes
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/12—Electrophoretic coating characterised by the process characterised by the article coated
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Superstructure Of Vehicle (AREA)
Abstract
The invention discloses a school bus hood electrophoresis quality improving method, which is used for solving the problem that a local electrophoresis film is not electrophoresed due to air resistance on the lower surface of a hood in the electrophoresis process of a school bus; through the arrangement of the electrophoresis clamp, the opening angle of the engine cover of the school bus can be adjusted at will during electrophoresis, so that the problem that the partial electrophoresis film is not used due to the fact that the lower surface of the engine cover is provided with air resistance because the engine cover is buckled on the frame in the electrophoresis process is solved; through the design of the upper chuck and the lower chuck, the electrophoresis fixture can be attracted together through the magnetic attraction between the first magnet body and the second magnet body, so that the abrasion of the surface of a vehicle body caused by bolt connection is avoided, and the problem that the vehicle body is easily damaged when the existing fixture is installed and disassembled is solved; through the through holes which are formed in the surfaces of the upper supporting column and the lower supporting column and are communicated with each other, the surface of the school bus engine hood covered by the upper supporting column and the lower supporting column can be fully electrophoresed, and the problem that the existing clamp installation surface cannot be electrophoresed is solved.
Description
Technical Field
The invention belongs to the field of automobile coating; relates to the automobile electrophoresis technology; in particular to a school bus engine hood electrophoresis quality improving method.
Background
In recent years, with the rapid development of the domestic passenger car industry, the quality of the passenger car is widely concerned, and especially the requirement on the corrosion resistance of the car body is higher and higher. Electrophoresis is an important component of an automobile paint film and is a main coating bearing the anticorrosion capacity. The anticorrosive performance of the passenger car is often determined by the quality of the electrophoretic coating, namely the performance of the electrophoretic coating is a decisive factor for determining the integral anticorrosive capability of the car body, and the integrity of the electrophoretic paint film is crucial to the integral anticorrosive capability of the electrophoretic paint film. The lower surface of the engine cover is provided with air resistance in the electrophoresis process of the school bus, so that a local electrophoresis film is not used, the corrosion resistance of the bus body is influenced to a certain extent, and the bus is easy to rust in severe cases, and needs to be subjected to paint repair treatment in a subsequent process.
Disclosure of Invention
The invention aims to provide a school bus engine hood electrophoresis quality improving method, which is used for solving the problem that a local electrophoresis film is not electrophoresed due to air resistance on the lower surface of an engine hood in the electrophoresis process of a school bus.
The purpose of the invention can be realized by the following technical scheme:
a school bus engine hood electrophoresis quality improving method comprises the following steps:
mounting an engine cover electrophoresis clamp on a school bus before electrophoresis of the engine cover of the school bus;
step two: carrying out electrophoresis;
the engine cover electrophoresis clamp comprises an upper clamp head, a lower clamp head, a first telescopic stay bar, a second telescopic stay bar, a third telescopic stay bar and a base head;
the upper chuck comprises an upper bottom plate, an upper supporting column and a first magnet body;
four corners of the upper bottom plate are respectively provided with an upper supporting column, and the middle part of the upper bottom plate is embedded with a first magnet body;
the lower chuck comprises a lower bottom plate, a lower supporting column and a second magnet body;
the lower support columns are respectively arranged at four corners of the lower bottom plate, a first through hole is formed in the middle of the lower bottom plate, and a second magnet body is embedded in the first through hole;
the lower chuck is fixedly arranged at one end of a first telescopic stay bar, the other end of the first telescopic stay bar is provided with a second telescopic stay bar, the other end of the second telescopic stay bar is provided with a third telescopic stay bar, and the other end of the third telescopic stay bar is fixedly provided with a base head;
the base head comprises a frame clamp base and a clamp screw rod, a threaded hole is formed in one side face of the clamp base, and the clamp screw rod is in threaded fit with the threaded hole.
Further, go up the support post and be equipped with four, four go up the support post side and the bottom and all seted up the through-hole, the through-hole is equipped with a plurality of, a plurality of the through-hole all link up mutually.
Furthermore, the number of the lower supporting columns is four, through holes are formed in the side faces and the bottoms of the four lower supporting columns, and the through holes are provided with a plurality of through holes which are mutually communicated.
Further, the second telescopic support rod is sleeved in the first telescopic support rod, one side of the second telescopic support rod sleeved in the first telescopic support rod is fixedly provided with a limiting mechanism, the limiting mechanism comprises a limiting lifting rod, a limiting rod stop block, a limiting stop block and a limiting sleeve, the limiting sleeve is fixedly arranged on one side of the second telescopic support rod, the limiting lifting rod is sleeved in the limiting sleeve, a limiting groove is formed in the limiting lifting rod, the limiting rod is installed in the limiting groove, the limiting rod stop block is installed at the bottom end of the limiting rod, the limiting sleeve is provided with the limiting stop block, and the limiting rod and the limiting stop block are matched for use.
Further, a plurality of is seted up to the spacing groove, a plurality of is installed to the gag lever post, a plurality of has been seted up in spacing hole.
Furthermore, one side of the lifting rod is fixedly connected with the second magnet body.
Furthermore, the third telescopic stay bar is sleeved in the second telescopic stay bar.
Furthermore, the lower chuck is arranged on one side of the engine hood door, the upper chuck is arranged on the other side of the engine hood door, the lower chuck and the upper chuck are symmetrically arranged, and the second magnet body and the first magnet body are arranged oppositely;
the base head is fixedly connected with the front wall support.
Further, the performing electrophoresis comprises the following steps:
a1, performing the pretreatment,
a2, threading, and installing a school bus on an electrophoresis production line;
a3, removing oil, and steaming the school bus in hot alkaline chemical oil removal solution steam at 70 ℃ for 35 min;
a4, washing with water, and steaming and bathing the school bus in water vapor at 60 ℃ for 2 min;
a5, derusting, spraying hydrochloric acid derusting liquid at 25 ℃ for 14-25 min by a school bus;
a6, washing with water; spraying distilled water at 25 deg.C for 5 min;
a7, phosphorization;
a8, passivation;
a9, electrophoretic coating;
a10, washing, namely washing the school bus in flowing cold water for 3 min;
a11, drying, namely drying the school bus in an oven at the temperature of 165 +/-5 ℃ for 55 min;
a12, lower line.
Compared with the prior art, the invention has the beneficial effects that:
through the arrangement of the electrophoresis clamp, the opening angle of the engine cover of the school bus can be adjusted at will during electrophoresis, so that the problem that the partial electrophoresis film is not used due to the fact that the lower surface of the engine cover is provided with air resistance because the engine cover is buckled on the frame in the electrophoresis process is solved;
through the design of the upper chuck and the lower chuck, the electrophoresis fixture can be attracted together through the magnetic attraction between the first magnet body and the second magnet body, so that the abrasion of the surface of a vehicle body caused by bolt connection is avoided, and the problem that the vehicle body is easily damaged when the existing fixture is installed and disassembled is solved;
through the through holes which are arranged on the surfaces of the upper support column and the lower support column and are communicated with each other, the surface of the school bus engine hood covered by the upper support column and the lower support column can be fully electrophoresed, and the problem that the installation surface of the existing clamp cannot be electrophoresed is solved;
the electrophoresis clamp can be adjusted in opening and closing angle freely through the design of the limiting lifting rod, so that the angle can be adjusted according to the electrophoresis condition when the electrophoresis clamp is used, and the electrophoresis quality of a school bus engine hood is improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a hood electrophoresis fixture configuration;
fig. 2 is an enlarged view at a in fig. 1.
In the figure: 1. a first magnet body; 2. an upper base plate; 3. an upper support column; 4. a bonnet door; 5. a lower support pillar; 6. a lower base plate; 7. a second magnet body; 8. a first telescopic stay bar; 9. a limiting sleeve; 10. a second telescopic stay bar; 11. a third telescopic stay bar; 12. a clamp screw; 13. a frame clamp base; 14. a cowl brace; 15. a limiting rod; 16. a limit rod stop block; 17. a limit stop block; 18. limiting a lifting rod; 19. a limiting groove.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, a school bus hood electrophoresis quality improving method includes the following steps:
mounting an engine cover electrophoresis clamp on a school bus before electrophoresis of the engine cover of the school bus;
step two: carrying out electrophoresis;
the engine cover electrophoresis clamp comprises an upper clamp head, a lower clamp head, a first telescopic stay bar 8, a second telescopic stay bar 10, a third telescopic stay bar 11 and a base head;
the upper chuck comprises an upper bottom plate 2, an upper supporting column 3 and a first magnet body 1;
four corners of the upper bottom plate 2 are respectively provided with an upper supporting column 3, and the middle part of the upper bottom plate 2 is embedded with a first magnet body 1;
the lower chuck comprises a lower bottom plate 6, a lower supporting column 5 and a second magnet body 7;
four corners of the lower bottom plate 6 are respectively provided with a lower support column 5, the middle part of the lower bottom plate 6 is provided with a first through hole, and a second magnet body 7 is embedded in the first through hole;
the lower chuck is fixedly arranged at one end of a first telescopic stay bar 8, a second telescopic stay bar 10 is arranged at the other end of the first telescopic stay bar 8, a third telescopic stay bar 11 is arranged at the other end of the second telescopic stay bar 10, and a base head is fixedly arranged at the other end of the third telescopic stay bar 11;
the base head comprises a frame clamp base 13 and a clamp screw rod 12, a threaded hole is formed in one side face of the clamp base, and the clamp screw rod 12 is in threaded fit with the threaded hole.
Go up the support column 3 and be equipped with four, the through-hole has all been seted up to 3 sides of four last support columns and bottom, and the through-hole is equipped with a plurality of, and a plurality of through-hole all link up mutually.
The lower support columns 5 are four, through holes are formed in the side faces and the bottoms of the four lower support columns 5, the through holes are provided with a plurality of, and the through holes are communicated mutually.
The second telescopic stay bar 10 is sleeved in the first telescopic stay bar 8, one side of the second telescopic stay bar 10 sleeved in the first telescopic stay bar 8 is fixedly provided with a limiting mechanism, the limiting mechanism comprises a limiting lifting rod 18, a limiting rod 15, a limiting rod stop 16, a limiting stop 17 and a limiting sleeve 9, the limiting sleeve 9 is fixedly arranged on one side of the second telescopic stay bar 10, the limiting lifting rod 18 is sleeved in the limiting sleeve 9, a limiting groove 19 is formed in the limiting lifting rod 18, the limiting rod 15 is installed in the limiting groove 19, the limiting rod stop 16 is installed at the bottom end of the limiting rod 15, the limiting sleeve 9 is provided with the limiting stop 17, and the limiting rod 15 is matched with the limiting stop 17 for use.
The limiting groove 19 is provided with a plurality of limiting rods 15, and the limiting holes are provided with a plurality of limiting holes.
One side of the limiting lifting rod 18 is fixedly connected with the second magnet body 7.
The third telescopic stay 11 is sleeved in the second telescopic stay 10.
The lower chuck is arranged on one side of the engine hood door 4, the upper chuck is arranged on the other side of the engine hood door 4, the lower chuck and the upper chuck are symmetrically arranged, and the second magnet body 7 is arranged opposite to the first magnet body 1;
the base head is fixedly connected with the front wall bracket 14.
The invention is implemented as follows: carrying out pretreatment, loading, and installing a school bus on an electrophoresis production line; deoiling, namely steaming and bathing the school bus in hot alkaline chemical deoiling solution steam at the temperature of 70 ℃ for 35 min; washing with water, and steam bathing school bus in water vapor at 60 deg.C for 2 min; derusting, spraying hydrochloric acid derusting liquid at 25 ℃ for 14-25 min by a school bus; washing with water; spraying distilled water at 25 deg.C for 5 min; phosphorization; passivating; electrophoretic coating; washing, namely washing the school bus in flowing cold water for 3 min; drying, namely drying the school bus in an oven at the temperature of 165 +/-5 ℃ for 55 min; and (5) taking the line down.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases by those skilled in the art; the preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A school bus engine hood electrophoresis quality improving method is characterized by comprising the following steps:
mounting an engine cover electrophoresis clamp on a school bus before electrophoresis of the engine cover of the school bus;
step two: carrying out electrophoresis;
the engine cover electrophoresis clamp comprises an upper clamp head, a lower clamp head, a first telescopic stay bar (8), a second telescopic stay bar (10), a third telescopic stay bar (11) and a base head;
the upper chuck comprises an upper bottom plate (2), an upper supporting column (3) and a first magnet body (1);
four corners of the upper bottom plate (2) are respectively provided with an upper supporting column (3), and the middle part of the upper bottom plate (2) is embedded with a first magnet body (1);
the lower chuck comprises a lower bottom plate (6), a lower supporting column (5) and a second magnet body (7);
lower support columns (5) are respectively installed at four corners of the lower bottom plate (6), a first through hole is formed in the middle of the lower bottom plate (6), and a second magnet body (7) is embedded in the first through hole;
the lower chuck is fixedly arranged at one end of a first telescopic stay bar (8), a second telescopic stay bar (10) is arranged at the other end of the first telescopic stay bar (8), a third telescopic stay bar (11) is arranged at the other end of the second telescopic stay bar (10), and a base head is fixedly arranged at the other end of the third telescopic stay bar (11);
the base head comprises a frame clamp base (13) and a clamp screw rod (12), a threaded hole is formed in one side face of the clamp base, and the clamp screw rod (12) is in threaded fit with the threaded hole.
2. The school bus hood electrophoresis quality improvement method according to claim 1, wherein four upper support columns (3) are provided, and through holes are formed in the side surfaces and the bottom of the four upper support columns (3), and a plurality of through holes are provided and are communicated with each other.
3. The school bus hood electrophoresis quality improvement method according to claim 1, wherein the number of the lower support columns (5) is four, the side surfaces and the bottom of the four lower support columns (5) are provided with through holes, the number of the through holes is several, and the several through holes are all communicated with each other.
4. The school bus hood electrophoresis quality improvement method according to claim 1, wherein the second telescopic stay bar (10) is sleeved in the first telescopic stay bar (8), a limit mechanism is fixedly installed on one side of the second telescopic stay bar (10) sleeved in the first telescopic stay bar (8), the limit mechanism comprises a limit lifting rod (18), a limit rod (15), a limit rod stop (16), a limit stop (17) and a limit sleeve (9), the limit sleeve (9) is fixedly installed on one side of the second telescopic stay bar (10), the limit lifting rod (18) is sleeved in the limit sleeve (9), a limit groove (19) is formed in the limit lifting rod (18), the limit rod (15) is installed in the limit groove (19), and a limit rod (16) is installed at the bottom end of the limit rod (15), and the limiting sleeve (9) is provided with a limiting stop (17), and the limiting rod (15) is matched with the limiting stop (17) for use.
5. The school bus engine hood electrophoresis quality improvement method according to claim 4, wherein a plurality of limiting grooves (19) are formed, a plurality of limiting rods (15) are installed, and a plurality of limiting holes are formed.
6. The school bus engine hood electrophoresis quality improvement method according to claim 4, wherein one side of the limiting lifting rod (18) is fixedly connected with the second magnet body (7).
7. The school bus hood electrophoretic quality improving method according to claim 1, wherein the third telescopic supporting rod (11) is sleeved in the second telescopic supporting rod (10).
8. The school bus hood electrophoresis quality improvement method according to claim 1, wherein the lower chuck is installed on one side of the hood door (4), the upper chuck is installed on the other side of the hood door (4), the lower chuck and the upper chuck are symmetrically installed, and the second magnet body (7) is arranged opposite to the first magnet body (1);
the base head is fixedly connected with the front wall bracket (14).
9. The school bus hood electrophoresis quality improving method according to claim 1, wherein said performing electrophoresis comprises the steps of:
a1, performing the pretreatment,
a2, threading, and installing a school bus on an electrophoresis production line;
a3, removing oil, and steaming the school bus in hot alkaline chemical oil removal solution steam at 70 ℃ for 35 min;
a4, washing with water, and steaming and bathing the school bus in water vapor at 60 ℃ for 2 min;
a5, derusting, spraying hydrochloric acid derusting liquid at 25 ℃ for 14-25 min by a school bus;
a6, washing with water; spraying distilled water at 25 deg.C for 5 min;
a7, phosphorization;
a8, passivation;
a9, electrophoretic coating;
a10, washing, namely washing the school bus in flowing cold water for 3 min;
a11, drying, namely drying the school bus in an oven at the temperature of 165 +/-5 ℃ for 55 min;
a12, lower line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011105718.9A CN112342593B (en) | 2020-10-15 | 2020-10-15 | School bus engine hood electrophoresis quality improving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011105718.9A CN112342593B (en) | 2020-10-15 | 2020-10-15 | School bus engine hood electrophoresis quality improving method |
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| CN112342593A true CN112342593A (en) | 2021-02-09 |
| CN112342593B CN112342593B (en) | 2021-10-01 |
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| CN202011105718.9A Active CN112342593B (en) | 2020-10-15 | 2020-10-15 | School bus engine hood electrophoresis quality improving method |
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