CN112974137A

CN112974137A - Putty smearing mechanism

Info

Publication number: CN112974137A
Application number: CN202110175582.7A
Authority: CN
Inventors: 李红军; 孙年俊; 李超; 郑春艳; 贾冬; 周冉
Original assignee: AVIC Beijing Aeronautical Manufacturing Technology Research Institute
Current assignee: AVIC Beijing Aeronautical Manufacturing Technology Research Institute
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-06-18
Anticipated expiration: 2041-02-09
Also published as: CN112974137B

Abstract

The invention relates to a putty applying mechanism, which comprises: a mounting seat; the displacement adjusting device is arranged on the mounting seat; the fixed support is arranged at the output end of the displacement adjusting device; the first telescopic driving element is arranged on the fixed support, and the output end of the first telescopic driving element is provided with a piston; the storage barrel is arranged on the fixed support, the piston is arranged in the storage barrel in a sliding mode, and putty is filled in the storage barrel; the scraping plate is arranged on the fixed support, the interior of the scraping plate is of a hollow structure, and the scraping plate is communicated with one end, far away from the piston, of the storage barrel; the limiting frame is sleeved outside the scraping plate, and a discharge chute is formed between the limiting frame and the scraping plate; and the universal ball and the blade coating plate are arranged on the same surface of the fixed support. The invention is applied to the technical field of smearing.

Description

Putty smearing mechanism

Technical Field

The invention relates to the technical field of painting, in particular to a putty painting mechanism.

Background

At present, the surface of a formed composite material component such as an airplane wing, an empennage wall plate, a radome, a propeller and the like has process defects such as shrinkage cavities, pinholes and the like, the spraying quality is seriously influenced, and a putty filling layer is required to be coated before polishing to fill the defective parts such as the shrinkage cavities, the pinholes and the like. After the putty is dried and hardened, the surface is polished to be smooth by abrasive paper, and then the paint is sprayed, so that the paint spraying quality is ensured. Theoretically, before painting, the putty layer is required to be completely polished, only the putty in the shrinkage cavity and the pin hole is reserved, and the original material substrate layer is not damaged. At present, manual smearing is generally adopted for putty layers at home and abroad, and the problems of uneven smearing thickness, unstable pinhole shrinkage cavity filling quality, high labor intensity, low production efficiency, serious influence of putty chemical components on human health and the like exist during smearing. The putty layer is very hard, and thick putty layer region because of scribbling inhomogeneous the cause needs polish many times, and the abrasive paper life-span is very low among the polishing process, needs frequently to change abrasive paper. Particularly, the uneven thickness of the putty layer brings great difficulty to the control of the polishing thickness precision in the automatic polishing process of the robot, and the polishing quality and efficiency are greatly reduced.

At present, the automatic putty spraying device and the patent technology in the market are generally used for smearing the putty on the wall in the building industry, and the technology is mature. The prior art mainly comprises an automatic putty spraying machine consisting of an automatic pressurizing pump, a pipeline and a spray gun; the other one is a semi-automatic smearing device, putty is filled in a smearing head with a handle, the smearing head is provided with two rows of rollers, the putty enters the surface of the wall through gaps between the rollers, and the putty is smeared on the surface of the wall through rolling of the rollers. The putty layers formed by the existing automatic smearing and spraying technologies are thick and are not suitable for the requirements of the scheme.

Therefore, the invention provides a putty applying mechanism.

Disclosure of Invention

(1) Technical problem to be solved

The embodiment of the invention provides a putty applying mechanism, which solves the technical problems of thick putty layer, unstable quality, unstable pinhole shrinkage cavity filling quality and the like.

(2) Technical scheme

In a first aspect, an embodiment of the present invention provides a putty applying mechanism, including:

a mounting seat;

the displacement adjusting device is arranged on the mounting seat;

the fixed support is arranged at the output end of the displacement adjusting device;

the first telescopic driving element is arranged on the fixed support, and the output end of the first telescopic driving element is provided with a piston;

the storage barrel is arranged on the fixed support, the piston is arranged in the storage barrel in a sliding mode, and putty is filled in the storage barrel;

the scraping plate is arranged on the fixed support, the interior of the scraping plate is of a hollow structure, and the scraping plate is communicated with one end, far away from the piston, of the storage barrel;

the limiting frame is sleeved outside the scraping plate, and a discharge chute is formed between the limiting frame and the scraping plate;

and the universal ball and the blade coating plate are arranged on the same surface of the fixed support.

In a further refinement, the displacement adjustment device comprises:

the second telescopic driving element is arranged on one side of the mounting seat;

the third telescopic driving element is arranged on the other side of the mounting seat;

the first connecting piece is connected to the fixed support, a strip-shaped hole is formed in the first connecting piece, and the output end of the second telescopic driving element is hinged to the first connecting piece through the strip-shaped hole;

the second connecting piece is connected to the fixed support, a connecting hole is formed in the second connecting piece, and the third telescopic driving element is hinged to the second connecting piece through the connecting hole.

Further improved, the fixed bolster is the frame type, first flexible drive element and storage vat are established respectively in the inside of fixed bolster, the one end that first flexible drive element was kept away from to the fixed bolster is equipped with the opening, the opening part card is equipped with the base, knife board, limit frame and universal ball are established respectively on the base.

In a further improvement, the base is fixedly clamped at the opening through a fixing piece.

In a further improvement, a convex fixed part is arranged in the middle of the base, the scraping plate is embedded in the base, and the limiting frame and the universal ball are respectively arranged on one side of the base, which is far away from the first telescopic driving element;

the fixing part is clamped in the opening, the middle part of the fixing part is pressed on the fixing part, and two ends of the fixing part are connected with the fixing support through the locking part respectively.

Further improved, the one end of mounting is equipped with the fixed orifices, the other end of mounting is equipped with the notch, the notch extends to the lateral part of mounting, the both ends of mounting link to each other through fixed orifices, notch, two retaining members and fixed bolster respectively.

In a further improvement, a locking screw is arranged in the middle of the fixing piece, and the end part of the locking screw extends to the base.

In a further improvement, the number of the universal balls is two, and the two universal balls are respectively positioned on two sides of the blade coating plate.

Further improved, the universal ball is provided with an adjusting structure for adjusting the distance between the universal ball and the fixed support.

In a further improvement, the universal ball is connected with the fixed support through a thread structure.

(3) Advantageous effects

In conclusion, in the putty applying mechanism, the mounting seat is used for being mounted on the robot; the displacement adjusting device can adjust the displacement of the fixed support, and finally the adjustable knife coating plate can be adjusted. In the knife coating process, during the piston compression storage vat of first flexible drive element output, can extrude in the putty toward the knife coating board with the putty in the storage vat, at the extrusion in-process, the blown down tank that forms between knife coating board and the limited frame can extrude putty, because the limiting displacement of universal ball, the thickness that makes putty paint can keep invariable, and universal ball can not receive the influence in the removal of paining the in-process moreover, can remove towards arbitrary direction. The discharge chute is pressed on the surface of the part in the blade coating process, so that the putty is prevented from leaking in the blade coating process. The putty with certain pressure is pressed into the defective parts such as shrinkage cavities, pinholes and the like on the surface of the part through the discharge chute, so that the purpose of filling the defects is achieved. The pressure of the putty in the knife coating process is adjusted by adjusting the pressure of the first telescopic driving element.

The robot plans the movement track of the smearing device through off-line programming, can basically ensure that the scraping plate is always in contact with the surface of the part in the process, and ensures that only a very thin and uniform putty layer is formed on the surface of the part while the surface defects of the part are filled with the putty through the displacement adjusting device and the action of the limiting frame, thereby ensuring the smearing quality of the putty.

The putty coating mechanism provided by the invention can be used for applying pressure to putty in a blade coating process, and ensuring that the putty is pressed into defects such as pinholes and shrinkage cavities on the surface of a part. Compared with the structures such as a pressure pump for spraying putty in the prior art, the structure is simple and practical. Because the putty coating in the putty coating mechanism is extremely thin, the amount of the putty used for coating each part is small, and the putty coating mechanism is suitable for coating components such as airplane wings, empennage wall plates, radar covers, propellers and the like.

The putty coating mechanism is convenient to disassemble and assemble and convenient to feed and clean. The automatic scraping and coating machine has the advantages of simple structure, low cost, convenient operation, convenient disassembly and cleaning, and stable and reliable scraping and coating quality, and solves the problems of uneven coating thickness, unstable filling quality of pinhole shrinkage cavities, high labor intensity, low production efficiency, serious influence of putty chemical components on human health and the like in the existing manual coating.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a putty applying mechanism in one embodiment of the present invention.

FIG. 2 is a partial schematic view of a putty application mechanism in accordance with an embodiment of the present invention.

Figure 3 is a cross-sectional view (front view) of a putty applying mechanism in one embodiment of the present invention.

Figure 4 is a cross-sectional view (side view) of a putty applying mechanism in one embodiment of the present invention.

In the figure:

1-mounting a base; 2-displacement adjusting means; 21-a second telescopic drive element; 22-a third telescopic drive element; 23-a first connector; 231-strip-shaped holes; 24-a second connector; 241-connecting hole; 3-fixing the bracket; 31-an opening; 32-a base; 321-a fixed part; 322-a locking member; 4-a first telescopic drive element; 41-a piston; 5-a material storage barrel; 6, scraping a plate; 7-limit frame; 8-universal ball; 9-a fixing piece; 92-notches; 93-locking screws; 101-putty.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 4, a putty applying mechanism includes:

a mounting base 1;

the displacement adjusting device 2 is arranged on the mounting seat 1;

the fixed support 3 is arranged at the output end of the displacement adjusting device 2;

the first telescopic driving element 4 is arranged on the fixed support 3, and the output end of the first telescopic driving element 4 is provided with a piston 41;

the storage barrel 5 is arranged on the fixed support 3, the piston 41 is slidably arranged in the storage barrel 5, and putty 101 is filled in the storage barrel 5;

the scraping plate 6 is arranged on the fixed support 3, the interior of the scraping plate 6 is of a hollow structure, and the scraping plate 6 is communicated with one end, far away from the piston 41, of the storage barrel 5;

the limiting frame 7 is sleeved outside the scraping plate 6, and a discharge chute is formed between the limiting frame 7 and the scraping plate 6;

and the universal ball 8 and the blade coating plate 6 are arranged on the same surface of the fixed support 3.

In the putty applying mechanism, the mounting seat 1 is used for being mounted on a robot; the displacement adjusting device 2 can adjust the displacement of the fixed support 3, and finally the adjusting blade coating plate 6 can be adjusted. In the knife coating process, when the piston 41 of the 4 output ends of the first telescopic driving element compresses the storage vat 5, the putty 101 in the storage vat can be extruded into the knife coating plate 6, in the extrusion process, the discharge chute formed between the knife coating plate 6 and the limiting frame 7 can extrude the putty 101, and due to the limiting effect of the universal ball 8, the thickness of the putty 101 in the coating process can be kept constant, and the movement of the universal ball 8 in the coating process can not be influenced, and the putty can move towards any direction. The discharge chute is pressed on the surface of the part in the blade coating process, so that the putty 101 is prevented from leaking in the blade coating process. The putty 101 with certain pressure is pressed into the defective parts such as shrinkage cavities, pinholes and the like on the surface of the part through the discharge chute, so that the purpose of filling the defects is achieved. The pressure of the putty in the scraping and coating process is adjusted by adjusting the pressure of the first telescopic driving element 4.

The robot plans the operation track of the smearing device through off-line programming, can basically ensure that the scraping plate 6 is always in contact with the surface of the part in the process, and ensures that only a very thin and uniform putty layer is formed on the surface of the part while the surface defects of the part are filled with the putty through the displacement adjusting device 2 and the limiting frame 7, thereby ensuring the smearing quality of the putty.

The putty coating mechanism of the embodiment applies pressure to the putty 101 in the scraping and coating process, and ensures that the putty 101 is pressed into defects such as pinholes and shrinkage cavities on the surface of a part. Compared with the structures such as a pressure pump for spraying putty in the prior art, the structure is simple and practical. Because the putty 101 in the embodiment is extremely thin, the amount of the putty 101 used for scraping each part is small, and therefore, the putty applying mechanism of the embodiment is suitable for applying components such as airplane wings, empennage wall plates, radar covers, propellers and the like.

The putty applying mechanism of this embodiment is convenient for the dismouting, is convenient for feed and wash. Simple structure, low cost, convenient operation, convenient disassembly and cleaning, stable and reliable scraping coating quality, solves the problems of uneven scraping thickness, unstable pinhole shrinkage cavity filling quality, high labor intensity, low production efficiency, serious influence of putty chemical components on human health and the like existing in the prior manual smearing

Specifically, a sealing ring can be arranged between the piston 41 and the storage barrel 5, so that the extrusion effect of the piston 41 is better. The first telescopic driving element 4 is a cylinder.

Further, in an embodiment, the displacement adjusting device 2 includes:

the second telescopic driving element 21, the said second telescopic driving element 21 is set up in one side of the mount pad 1;

a third telescopic driving element 22, wherein the third telescopic driving element 22 is arranged at the other side of the mounting seat 1;

the first connecting piece 23 is connected to the fixed support 3, a strip-shaped hole 231 is formed in the first connecting piece 23, and the output end of the second telescopic driving element 21 is hinged to the first connecting piece 23 through the strip-shaped hole 231;

the first connecting piece 23, the second connecting piece 24 is connected on the fixed support 3, a connecting hole 241 is arranged on the second connecting piece 24, and the third telescopic driving element 22 is hinged with the second connecting piece 24 through the connecting hole 241.

The second telescopic driving element 21, the third telescopic driving element 22, the first connecting piece 23 and the first connecting piece 23 form a swinging mechanism, and are matched with the universal ball 9, so that the discharge port can swing flexibly in the smearing process, the influences of deformation of the surface of a large thin-wall weak-rigidity space curved surface composite material component and low movement precision of the robot are overcome, and the discharge chute of the scraping plate 6 can be always pressed on the surface of the component.

Specifically, the second telescopic driving element 21 and the third telescopic driving element 22 are also cylinders, and a pressure regulating valve may be disposed on the fixed bracket 3, and the pressure of each cylinder is regulated by the pressure regulating valve, and a three-position five-way middle-relief solenoid valve controls the lifting and the pressure of each cylinder.

The pressures of the first telescopic driving element 4, the second telescopic driving element 21 and the third telescopic driving element 22 are controlled by pressure regulating valves to be different, and matched pressures are obtained through actual debugging. When the smearing device is in track conversion or stops smearing in the smearing process, the first telescopic driving element 4 is in a solenoid valve middle position pressure relief state, and putty 101 is prevented from being extruded out of the discharge chute.

Further, in an embodiment, the fixed bracket 3 is a frame shape, the first telescopic driving element 4 and the storage bin 5 are respectively arranged inside the fixed bracket 3, an opening 31 is arranged at an end of the fixed bracket 3 away from the first telescopic driving element 4, a base 32 is clamped at the opening 31, and the knife coating plate 6, the limiting frame 7 and the universal ball 8 are respectively arranged on the base 32. The blade coating plate 6, the limiting frame 7 and the universal ball 8 can be fixedly installed through the base 32 and the opening 31, and the installation is convenient and the smearing is convenient.

Further, in one embodiment, the base 32 is fixedly clamped at the opening 31 by the fixing member 9. The fixing member 9 may be a bolt, a pressing plate, or the like.

Further, in an embodiment, a convex fixing portion 321 is disposed in the middle of the base 32, the scraping plate 6 is embedded in the base 32, and the limiting frame 7 and the universal ball 8 are respectively disposed on a side of the base 32 away from the first telescopic driving element 4;

the fixing portion 321 is clamped in the opening 31, the middle portion of the fixing member 9 is pressed on the fixing portion 321, and two ends of the fixing member 9 are connected with the fixing bracket 3 through locking members 322 respectively. Specifically, the locking member 322 is a bolt.

Further, in an embodiment, one end of the fixing member 9 is provided with a fixing hole, the other end of the fixing member 9 is provided with a notch 92, the notch 92 extends to the side of the fixing member 9, and two ends of the fixing member 9 are respectively connected with the fixing bracket 3 through the fixing hole, the notch 92, and two locking members 322. During installation, when a locking part 322 is arranged in the fixing hole, the fixing part 9 can rotate around the locking part 322, the notch 92 is clamped into the other locking part 322 connected to the fixing bracket 3, and then the two locking parts 322 are locked, so that the fixing of the fixing part 9 can be completed, namely the fixing of the base 32 is completed.

Further, in an embodiment, the fixing member 9 is provided with a locking screw 93 at the middle, and the end of the locking screw 93 extends to the base 32. The locking screw 93 facilitates further securing of the base 32.

Further, in an embodiment, the number of the universal balls 8 is two, the two universal balls 8 are respectively located on two sides of the blade coating plate 6, and the two universal balls 8 can keep the thickness of the applied putty 101 more stable.

Further, in an embodiment, an adjusting structure for adjusting the distance between the universal ball 8 and the fixing support 3 is arranged on the universal ball 8, and the thickness of the putty 101 applied can be adjusted by adjusting the distance between the universal ball 8 and the fixing support 3.

Further, in one embodiment, the universal ball 8 is connected with the fixing support 3 through a thread structure, and the universal ball 8 is adjusted through the thread structure, so that the operation is convenient.

The above description is only an example of the present application and is not limited to the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A putty application mechanism, comprising:

a mounting seat;

the displacement adjusting device is arranged on the mounting seat;

2. The putty application mechanism of claim 1, characterized in that the displacement adjustment means comprises:

3. The putty applying mechanism according to claim 1, characterized in that the fixing support is a frame, the first telescopic driving element and the storage vat are respectively arranged inside the fixing support, an opening is arranged at one end of the fixing support far away from the first telescopic driving element, a base is clamped at the opening, and the scraping plate, the limiting frame and the universal ball are respectively arranged on the base.

4. The putty application mechanism of claim 3, characterized in that the base is secured in place at the opening by a fastener.

5. The putty applying mechanism according to claim 4, characterized in that a protruding fixing part is arranged in the middle of the base, the scraping plate is embedded in the base, and the limiting frame and the universal ball are respectively arranged on one side of the base, which is far away from the first telescopic driving element;

6. The putty applying mechanism according to claim 5, characterized in that one end of the fixing piece is provided with a fixing hole, the other end of the fixing piece is provided with a notch, the notch extends to the side part of the fixing piece, and the two ends of the fixing piece are respectively connected with the fixing support through the fixing hole, the notch, the two locking pieces and the fixing support.

7. The putty application mechanism of claim 6, characterized in that a locking screw is disposed in the middle of the fixing member, and the end of the locking screw extends to the base.

8. The putty applying mechanism according to claim 1, characterized in that the number of the universal balls is two, and the two universal balls are respectively located on two sides of the scraping plate.

9. The putty applying mechanism according to any one of claims 1 to 8, characterized in that the universal ball is provided with an adjusting structure for adjusting the distance between the universal ball and the fixing support.

10. The putty application mechanism of claim 9, characterized in that the universal ball and the fixed support are connected by a threaded structure.