A spraying device for producing a connection device with a surface pretreatment function

Abstract

The present invention discloses a spraying device for producing a connection device with a surface pretreatment function, and relates to the field of spraying technology. The present invention discloses a spraying device for producing a connection device with a surface pretreatment function, and comprises a machine base and a machine body. The machine body is arranged above the machine base, and a pretreatment chamber and a first motor are respectively arranged at the left and right ends of the interior of the machine base. Compared with the current spraying device, the present invention is provided with a first fixed chamber and a second fixed chamber. On the one hand, it can improve the uniformity of paint thickness in various areas of the connection device, and on the other hand, it can avoid the connection device being unable to be effectively sprayed in the clamped area due to the influence of the clamping parts during spraying, so that subsequent re-spraying is required. In addition, the present invention is also provided with a pretreatment mechanism. Compared with the current method of directly placing the connection device on a workbench for sandblasting cleaning, it can effectively avoid the trouble of manually turning the connection device back and forth.

Description

Technical Field

[0001] The invention relates to the field of spraying technology, in particular to a spraying device for producing a connecting device with a surface pretreatment function. Background Art

[0002] The shipbuilding industry often uses some connecting devices to fix or support certain objects. However, these connecting devices are very prone to rust due to being in a humid environment for a long time. Therefore, current ship connecting devices often need to be sprayed with some special anti-rust paint to ensure the service life of the connecting devices.

[0003] When spraying paint on a connecting device, existing spraying equipment usually places the connecting device directly on a workbench, and then uses a spraying robot arm to spray the connecting device, such as the patent "CN219092511U an environmentally friendly workpiece spraying equipment", but this spraying method will cause the area where the connecting device contacts the workbench to be unable to be sprayed with paint, and then re-spraying is required. At this time, during the secondary spraying process, the thickness of the re-sprayed area and other areas is likely to be inconsistent, so as to affect the anti-corrosion performance of the connecting device; finally, the current connecting device is polished or sandblasted before spraying, but with the existing surface treatment method, the staff needs to turn the connecting device over many times, thereby reducing work efficiency. Summary of the invention

[0004] The object of the present invention is to provide a spraying device for producing a connection device with a surface pretreatment function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spraying device for producing a connection device with a surface pretreatment function, the spraying device comprising a machine base and a machine body, the machine body being arranged above the machine base, a pretreatment chamber and a first motor being arranged at the left and right ends of the machine base respectively, a pretreatment mechanism and a cylinder being arranged at the lower end of the pretreatment chamber, the lifting and lowering of the pretreatment mechanism being controlled by the cylinder, a third fixed seat being arranged at the upper end of the pretreatment chamber, a reversing motor being arranged at the outer side of the pretreatment chamber, the reversing motor being connected to the third fixed seat via a reversing shaft, the direction of the third fixed seat being controlled by the reversing motor, a first fixed seat being arranged above the first motor, a spraying robot arm being arranged at one end of the machine body close to the first fixed seat, the spraying robot arm being connected to an external paint delivery system, a linear motor being arranged at the top of the machine body, and the working A lifting mechanism is provided at the end, and a second fixed seat is provided below the lifting mechanism, and the connecting device is moved by the second fixed seat. The second fixed seat and the third fixed seat provided in the present invention both have a vacuum adsorption function. When the staff places the connecting device on the third fixed seat, the third fixed seat is driven to rotate by the reversing motor until the side of the third fixed seat where the connecting device is placed faces the pretreatment mechanism, and the connecting device placed on the third fixed seat is cleaned by the pretreatment mechanism to avoid the outer surface of the connecting device containing impurities such as oxide scale during subsequent spraying. When the cleaning of the connecting device is completed, the third fixed seat is driven to rotate by the reversing motor until the side of the third fixed seat where the connecting device is placed faces the fuselage, and then the connecting device placed on the third fixed seat is grabbed to the first fixed seat by the linear motor, the lifting mechanism and the second fixed seat, and finally the connecting device on the first fixed seat is sprayed by the spraying robot arm.

[0006] Furthermore, a first fixed cavity is provided at the upper end of the first fixed seat, a second fixed cavity is provided at the lower end of the second fixed seat, the first fixed cavity cooperates with the lower surface of the connecting device, the second fixed cavity cooperates with the upper surface of the connecting device, a first air pump is provided inside the second fixed seat, a plurality of groups of first through holes are provided at one end of the second fixed cavity away from the first fixed seat, and the plurality of groups of first through holes are connected to the air inlet end of the first air pump. Compared with the current spraying device, the present invention is provided with the first fixed cavity and the second fixed cavity. During the spraying process, the connecting device is first placed in the first fixed cavity at the upper end of the first fixed seat, and then the upper surface of the connecting device is sprayed by the spraying robot arm. The surface is sprayed with paint. When the spraying of the upper surface of the connecting device is completed and the paint is dry, the second fixing seat is driven to descend by the lifting mechanism until the upper surface of the connecting device contacts the second fixing cavity set at the lower end of the second fixing seat. Then the first air pump is turned on to fix the connecting device under the second fixing seat. Finally, the second fixing seat is driven upward by the lifting mechanism, and the lower surface of the connecting device is sprayed with paint by the spraying robot arm. Through the above technical scheme, the present invention can improve the uniformity of the paint thickness in each area of ​​the connecting device on the one hand, and can avoid the connection device being unable to be effectively sprayed in the clamped area due to the influence of the clamping parts during spraying.

[0007] Furthermore, an air duct and a receiving groove are further provided inside the second fixed seat, and the air duct is provided with two groups, one group of the air ducts is connected to the air outlet end of the external hot air drying system through an air inlet pipe, and the other group of the air ducts is connected to the air inlet end of the external hot air drying system through an air outlet pipe. The receiving groove is an annular structure, and the receiving groove is arranged at the inner outer end of the second fixed seat, and a first electromagnet is arranged at the inner upper end of the receiving groove, and a sealing plate is arranged at the inner lower end of the receiving groove, and a first magnetic block is embedded at one end of the sealing plate close to the first electromagnet. After the upper surface of the connecting device is sprayed, the second fixed seat can be driven by a linear motor to move to the top of the first fixed seat, and then the second fixed seat is opened. An electromagnet drives the sealing plate to extend out of the storage slot through the first electromagnet, and then drives the second fixing seat to descend through the lifting mechanism until the sealing plate contacts the induction plate, and finally turns on the external hot air drying system, and transmits hot air to the area between the first fixing seat and the second fixing seat through the external hot air drying system, so that the paint on the upper surface of the connecting device can be dried quickly. When the paint is dried, the staff can judge whether the spraying quality is qualified in time, and judge whether the viscosity of the paint is appropriate according to the spraying effect on the upper surface of the connecting device, so as to facilitate timely adjustment of the composition ratio of the paint. Compared with completely spraying the surface of the connecting device and then testing the spraying quality, the present invention can reduce the waste of paint when encountering the situation of poor spraying quality.

[0008] Furthermore, a movable groove is provided at the inner outer end of the first fixing seat, and the movable groove is an annular structure. A sensing plate is provided at the inner upper end of the movable groove, and the sensing plate is connected to the movable groove through a sensing spring. The sensing plate is aligned with the sealing plate, and a piezoelectric sheet is provided at one end of the sensing plate close to the sensing spring. After the sealing plate in the present invention contacts the sensing plate, the sealing plate will apply a set of forces to the sensing plate, and the piezoelectric sheet will generate a set of current at this time. The present invention determines whether the sensing plate is in contact with the sealing plate by whether the piezoelectric sheet generates current, so as to avoid a gap between the sensing plate and the sealing plate due to human operating errors or other reasons, so that waste gas is discharged when the paint is drying.

[0009] Furthermore, a third fixed cavity is provided at the upper end of the third fixed seat, a second air pump is provided inside the third fixed seat, the third fixed cavity cooperates with the lower surface of the connecting device, a plurality of groups of second through holes are provided at the side end of the third fixed cavity, and the plurality of groups of second through holes are connected with the air inlet end of the second air pump. When the present invention is working, the connecting device is first placed in the third fixed cavity, and then the second air pump is turned on, and the third fixed seat is driven to rotate by a reversing motor until the connecting device faces the pretreatment mechanism, and the connecting device placed on the third fixed seat is cleaned by the pretreatment mechanism to avoid impurities such as oxide scale on the outer surface of the connecting device during subsequent spraying.

[0010] Furthermore, the pretreatment mechanism includes a mounting disk, a second motor, a nozzle and a mounting seat. An internal gear and an external gear are arranged inside the mounting disk, and the internal gear is meshed with the external gear. The mounting seat is provided with several groups, each group of mounting seats is arranged on the internal gear, and each group of mounting seats is provided with a nozzle at a position close to the center of the mounting disk, and each group of nozzles is connected to an external sandblasting system. The second motor is arranged below the mounting disk and connected to the external gear. When the connecting device is toward the pretreatment mechanism, the staff can drive the mounting disk to move through the cylinder until the connecting device is located between the several groups of nozzles, and finally turn on the nozzle and the second motor, and eject high-speed moving sand particles to the connecting device through the external sandblasting system and the nozzle, so as to improve the surface quality of the connecting device. The second motor, the internal gear and the external gear can control the several groups of nozzles to swing around the connecting device, thereby increasing the cleaning area.

[0011] Furthermore, a cavity, a movable plate, a second electromagnet and a push rod are also provided inside the third fixed seat, the second electromagnet is provided at one end of the cavity away from the third fixed cavity, the movable plate is provided inside the cavity, and a second magnetic block is embedded in one end of the movable plate close to the second electromagnet, the push rods are provided in several groups, and several groups of push rods are all provided at one end of the movable plate close to the third fixed cavity, and each group of push rods is wound with a first compression spring, the pretreatment mechanism also includes support rods, and the support rods are provided in several groups, and each group of support rods is aligned with a group of push rods, and each group of support rods is wound with a second compression spring, and the present invention is also provided with push rods and support rods, and in the process of cleaning the connecting device, the connecting device is always connected with several groups of support rods. The present invention controls the movement of the push rod through the second electromagnet, and pushes the connecting device out of the third fixed cavity through the push rod to ensure that all areas of the connecting device can be cleaned. The support rod supports the connecting device to avoid displacement of the connecting device after it is moved out of the third fixed cavity. When the connecting device is cleaned, the second electromagnet gradually reduces the magnetic field that repels the second magnetic block. At this time, the connecting device will gradually return to the third fixed cavity under the action of the second compression spring wound on the support rod. Then the staff can start the second air pump to re-fix the connecting device in the third fixed cavity. Compared with the current method of directly placing the connecting device on the workbench for sandblasting cleaning, the present invention can effectively avoid the trouble of manually turning the connecting device back and forth.

[0012] Furthermore, two groups of drop holes are provided on the mounting disk, and the mounting seat is connected to the nozzle through a rotating shaft and a third motor. During the cleaning process of the connecting device of the present invention, the used sand will leave the mounting disk through the two groups of drop holes to facilitate the recovery of the staff. The sandblasting angle of the nozzle can be adjusted by the third motor to avoid dead corners of the connecting device that are not cleaned.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: compared with the current spraying device, the present invention is provided with a first fixed cavity and a second fixed cavity matching the connecting device; when the connecting device is placed in the first fixed cavity, the upper surface of the connecting device is sprayed with paint by a spraying robot arm; when the connecting device is placed in the second fixed cavity, the lower surface of the connecting device is sprayed with paint by a spraying robot arm. Through staged spraying, the present invention can, on the one hand, improve the uniformity of paint thickness in various areas of the connecting device; on the other hand, it can avoid the connection device being unable to be effectively sprayed in the clamped area due to the influence of the clamping parts during spraying, so that subsequent re-spraying is required. In addition, the present invention is also provided with a sealing plate and a sensing plate. When the connecting device is placed in the first fixed cavity, the upper surface of the connecting device is sprayed with paint by a spraying robot arm. After the spraying of the upper surface of the connecting device is completed, a sealed cavity can be formed between the first fixing seat and the second fixing seat through the sealing plate and the induction plate. At this time, hot air is transported to the area between the first fixing seat and the second fixing seat through the external hot air drying system, so that the paint on the upper surface of the connecting device can be dried quickly. When the paint is dried, the staff can promptly judge whether the spraying quality is qualified. Compared with completely spraying the surface of the connecting device and then testing the spraying quality, the present invention can reduce the waste of paint when encountering the situation of poor spraying quality. Finally, the present invention is also provided with a pretreatment mechanism. Compared with the current method of directly placing the connecting device on the workbench for sandblasting cleaning, it can effectively avoid the trouble of manually turning the connecting device back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the internal structure of the base of the present invention;

[0016] Figure 3 is a cross-sectional view of a first fixing seat of the present invention;

[0017] Figure 4 It is a schematic structural diagram of the second fixing seat of the present invention;

[0018] Figure 5 is a cross-sectional view of a second fixing seat of the present invention;

[0019] Figure 6 It is a schematic diagram of the gas flow direction when the upper surface of the connecting device of the present invention is dry;

[0020] Figure 7 This is a schematic diagram of the lower surface of the connecting device of the present invention when spraying;

[0021] Figure 8 is a cross-sectional view of a third fixing seat of the present invention;

[0022] Fig. 9 It is a schematic diagram of the structure of the pretreatment mechanism of the present invention;

[0023] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure of the middle AA section;

[0024] Fig.11 It is a schematic diagram of the overall structure of the pretreatment mechanism of the present invention.

[0025] In the figure: 1, machine base; 11, pretreatment chamber; 12, first motor; 2, fuselage; 21, linear motor; 3, lifting mechanism; 4, spray robot arm; 5, first fixed seat; 51, induction plate; 52, movable groove; 6, second fixed seat; 61, sealing plate; 62, first through hole; 63, storage groove; 64, first electromagnet; 65, air outlet pipe; 66, first air pump; 67, air inlet pipe; 68, air duct; 7, third fixed seat; 71, second air pump; 72, second through hole; 73, movable plate; 74, second electromagnet; 75, push rod; 76, reversing shaft; 8, pretreatment mechanism; 81, mounting plate; 811, blanking hole; 82, second motor; 83, internal gear; 84, support rod; 85, nozzle; 86, mounting seat; 861, third motor; 87, external gear; 9, cylinder. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example: Figure 1-Figure 11As shown, the present invention provides a technical solution, a spraying equipment for producing a connection device with a surface pretreatment function, the spraying equipment comprising a base 1 and a body 2, the body 2 is arranged above the base 1, a pretreatment chamber 11 and a first motor 12 are respectively arranged at the left and right ends inside the base 1, a pretreatment mechanism 8 and a cylinder 9 are arranged at the lower end inside the pretreatment chamber 11, and the lifting of the pretreatment mechanism 8 is controlled by the cylinder 9, a third fixed seat 7 is arranged at the upper end inside the pretreatment chamber 11, a reversing motor is arranged at the outer side of the pretreatment chamber 11, the reversing motor is connected to the third fixed seat 7 through a reversing shaft 76, and the direction of the third fixed seat 7 is controlled by the reversing motor, a first fixed seat 5 is arranged above the first motor 12, a spraying robot arm 4 is arranged at one end of the body 2 close to the first fixed seat 5, and the spraying robot arm 4 is connected to an external paint delivery system, a linear motor 21 is arranged at the top of the body 2, and a lifting mechanism is arranged at the working end of the linear motor 21 3. A second fixed seat 6 is arranged below the lifting mechanism 3, and the connecting device is moved by the second fixed seat 6. The second fixed seat 6 and the third fixed seat 7 arranged in the present invention both have a vacuum adsorption function. When the staff places the connecting device on the third fixed seat 7, the third fixed seat 7 is driven to rotate by the reversing motor until the side of the third fixed seat 7 where the connecting device is placed faces the pretreatment mechanism 8. The connecting device placed on the third fixed seat 7 is cleaned by the pretreatment mechanism 8 to avoid the outer surface of the connecting device containing impurities such as oxide scale during subsequent spraying. When the cleaning of the connecting device is completed, the third fixed seat 7 is driven to rotate by the reversing motor until the side of the third fixed seat 7 where the connecting device is placed faces the fuselage 2. Then, the connecting device placed on the third fixed seat 7 is grabbed onto the first fixed seat 5 by the linear motor 21, the lifting mechanism 3 and the second fixed seat 6. Finally, the connecting device on the first fixed seat 5 is sprayed by the spraying robot arm 4.

[0028] like Figure 1-Figure 7 As shown, a first fixed cavity is provided at the upper end of the first fixed seat 5, and a second fixed cavity is provided at the lower end of the second fixed seat 6, the first fixed cavity cooperates with the lower surface of the connecting device, and the second fixed cavity cooperates with the upper surface of the connecting device, a first air pump 66 is provided inside the second fixed seat 6, and a plurality of groups of first through holes 62 are provided at one end of the second fixed cavity away from the first fixed seat 5, and the plurality of groups of first through holes 62 are connected to the air inlet end of the first air pump 66.

[0029] like Figure 6-Figure 7As shown, the interior of the second fixed seat 6 is also provided with an air duct 68 and a receiving groove 63. There are two groups of air ducts 68, one group of air ducts 68 is connected to the air outlet end of the external hot air drying system through an air inlet pipe 67, and the other group of air ducts 68 is connected to the air inlet end of the external hot air drying system through an air outlet pipe 65. The receiving groove 63 is an annular structure, and the receiving groove 63 is arranged at the inner outer end of the second fixed seat 6. The first electromagnet 64 is arranged at the inner upper end of the receiving groove 63, and the inner lower end of the receiving groove 63 is provided with a sealing plate 61, and the end of the sealing plate 61 close to the first electromagnet 64 is inlaid with a first magnetic block.

[0030] like Figure 6 As shown, a movable groove 52 is provided at the inner outer end of the first fixed seat 5, and the movable groove 52 is a ring structure. A sensing plate 51 is provided at the inner upper end of the movable groove 52. The sensing plate 51 is connected to the movable groove 52 through a sensing spring. The sensing plate 51 is aligned with the sealing plate 61, and a piezoelectric sheet is provided at one end of the sensing plate 51 close to the sensing spring.

[0031] Compared with the existing spraying device, the present invention is provided with a first fixed cavity and a second fixed cavity matching the connecting device. During the spraying process, the connecting device is first placed in the first fixed cavity at the upper end of the first fixing seat 5, and then the upper surface of the connecting device is sprayed with paint by the spraying robot arm 4. At this time, the lower surface of the connecting device is in the first fixed cavity, so it will not be contaminated by the paint (such as Figure 3As shown), when the spraying of the upper surface of the connecting device is completed, the linear motor 21 drives the second fixing seat 6 to move to the top of the first fixing seat 5, and then the first electromagnet 64 is turned on, and the sealing plate 61 is driven to extend out of the storage groove 63 by the first electromagnet 64, and then the second fixing seat 6 is driven to descend by the lifting mechanism 3 until the sealing plate 61 contacts the induction plate 51, and finally the external hot air drying system is turned on, and hot air is delivered to the area between the first fixing seat 5 and the second fixing seat 6 through the external hot air drying system, so that the paint on the upper surface of the connecting device is dried quickly. When the paint is dried, the staff can judge whether the viscosity of the paint is appropriate according to the spraying effect on the upper surface of the connecting device, so as to facilitate timely adjustment of the composition ratio of the paint. If the spraying on the upper surface of the connecting device is qualified, the staff can put the sealing plate 61 into the storage groove 63 through the first electromagnet 64, and then drive the second fixing seat 6 to descend through the lifting mechanism 3 until the upper surface of the connecting device contacts the second fixing cavity set at the lower end of the second fixing seat 6, and then turn on the first air pump 66 to fix the connecting device under the second fixing seat 6, and finally drive the second fixing seat 6 to move upward through the lifting mechanism 3, and spray paint on the lower surface of the connecting device through the spraying robot arm 4. Through the above technical scheme, the present invention can, on the one hand, improve the uniformity of the paint thickness of each area of ​​the connecting device, and on the other hand, avoid the connection device being unable to be effectively sprayed in the clamped area due to the influence of the clamping parts during spraying.

[0032] like Figure 8 As shown, a third fixed cavity is provided at the upper end of the third fixed seat 7, a second air pump 71 is provided inside the third fixed seat 7, the third fixed cavity cooperates with the lower surface of the connecting device, a plurality of groups of second through holes 72 are provided at the side end of the third fixed cavity, and the plurality of groups of second through holes 72 are connected to the air inlet end of the second air pump 71.

[0033] like Figure 9-10 As shown, the pretreatment mechanism 8 includes a mounting plate 81, a second motor 82, a nozzle 85 and a mounting seat 86. An internal gear 83 and an external gear 87 are arranged inside the mounting plate 81. The internal gear 83 is meshed with the external gear 87. The mounting seat 86 is provided with a plurality of groups. Each group of mounting seats 86 is arranged on the internal gear 83. A nozzle 85 is arranged at a position of each group of mounting seats 86 near the center of the mounting plate 81. Each group of nozzles 85 is connected to an external sandblasting system. The second motor 82 is arranged below the mounting plate 81 and connected to the external gear 87.

[0034] like Figure 8-Figure 11As shown, the interior of the third fixed seat 7 is also provided with a cavity, a movable plate 73, a second electromagnet 74 and a push rod 75. The second electromagnet 74 is arranged at one end of the cavity away from the third fixed cavity, the movable plate 73 is arranged inside the cavity, and the end of the movable plate 73 close to the second electromagnet 74 is inlaid with a second magnetic block. Several groups of push rods 75 are arranged, and several groups of push rods 75 are all arranged at one end of the movable plate 73 close to the third fixed cavity. A first compression spring is wound around each group of push rods 75. The pretreatment mechanism 8 also includes support rods 84, and several groups of support rods 84 are arranged. Each group of support rods 84 is aligned with a group of push rods 75, and a second compression spring is wound around each group of support rods 84.

[0035] The connecting device in the present invention needs to be placed on the third fixed cavity during pretreatment, and the connecting device is fixed in the third fixed cavity by turning on the second air pump 71. When the connecting device is facing the pretreatment mechanism 8, the staff can drive the mounting plate 81 to move through the cylinder 9 until the connecting device is located between several groups of nozzles 85 and contacts several groups of support rods 84. Finally, the nozzles 85 and the second motor 82 are turned on, and high-speed moving sand particles are ejected to the connecting device through the external sandblasting system and the nozzles 85 to improve the surface quality of the connecting device (the functions realized by the external sandblasting system and the nozzles 85 belong to conventional technical means in this field, and the specific structure is not described). The second motor 82 can control several groups of nozzles 85 to swing around the connecting device, thereby increasing the cleaning area. The present invention is also provided with a push rod 75 and a support rod 84. When the connecting device is close to the outside of the third fixed cavity, After the area is cleaned, the staff can turn off the second air pump 71 and turn on the second electromagnet 74, and control the movement of the push rod 75 by the second electromagnet 74, and push the connecting device out of the third fixed cavity by the push rod 75 to ensure that all areas of the connecting device can be cleaned. The support rod 84 is used to support the connecting device to avoid displacement of the connecting device after it is moved out of the third fixed cavity. When the connecting device is cleaned, the second electromagnet 74 gradually reduces the magnetic field that repels the second magnetic block. At this time, the connecting device will gradually return to the third fixed cavity under the action of the second compression spring wrapped on the support rod 84, and then the staff can turn on the second air pump 71 to re-fix the connecting device in the third fixed cavity. Compared with the current method of directly placing the connecting device on the workbench for sandblasting cleaning, the present invention can effectively avoid the trouble of manually turning the connecting device back and forth.

[0036] like Fig.11 As shown, two groups of blanking holes 811 are provided on the mounting disk 81, and the mounting seat 86 is connected to the nozzle 85 through a rotating shaft and a third motor 861. In the process of cleaning the connecting device of the present invention, the used sand particles will leave the mounting disk 81 through the two groups of blanking holes 811 to facilitate the recovery of the staff. The sandblasting angle of the nozzle 85 can be adjusted by the third motor 861 to avoid dead corners of the connecting device that are not cleaned.

[0037] Working principle of the present invention: When the present invention is working, the connecting device is first placed in the third fixed cavity, and then the second air pump 71 is turned on, and the third fixed seat 7 is driven to rotate by the reversing motor until the connecting device faces the pretreatment mechanism 8, and the connecting device placed on the third fixed seat 7 is cleaned by the pretreatment mechanism 8 to avoid the outer surface of the connecting device containing impurities such as oxide scale during subsequent spraying. When the cleaning of the connecting device is completed, the third fixed seat 7 is driven to rotate by the reversing motor until the connecting device faces the fuselage 2, and then the connecting device in the third fixed cavity is grabbed and placed in the first fixed cavity by the linear motor 21, the lifting mechanism 3 and the second fixed seat 6, and the upper surface of the connecting device is sprayed by the spraying robot arm 4. When the upper surface of the connecting device is sprayed, the linear motor 2 is used. 1 drives the second fixing seat 6 to move to the top of the first fixing seat 5, drives the sealing plate 61 to extend out of the receiving groove 63 through the first electromagnet 64, and then drives the second fixing seat 6 to descend through the lifting mechanism 3 until the sealing plate 61 contacts the induction plate 51, and finally turns on the external hot air drying system to make the paint on the upper surface of the connecting device dry quickly. When the paint is dried, the sealing plate 61 is stored in the receiving groove 63 through the first electromagnet 64, and the upper surface of the connecting device contacts the second fixing cavity provided at the lower end of the second fixing seat 6 through the lifting mechanism 3, and then turns on the first air pump 66 to fix the connecting device under the second fixing seat 6, and finally drives the second fixing seat 6 to move upward through the lifting mechanism 3, and sprays the paint on the lower surface of the connecting device through the spraying robot arm 4.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. The embodiments should therefore be considered exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A spraying device for producing a connection device with a surface pretreatment function, characterized in that: The spraying equipment comprises a machine base (1) and a machine body (2), wherein the machine body (2) is arranged above the machine base (1), and a pretreatment chamber (11) and a first motor (12) are respectively arranged at the left and right ends of the machine base (1), and a pretreatment mechanism (8) and a cylinder (9) are arranged at the lower end of the pretreatment chamber (11), and a third fixed seat (7) is arranged at the upper end of the pretreatment chamber (11), and a reversing motor is arranged outside the pretreatment chamber (11), and the reversing motor is connected to the third fixed seat (7) via a reversing shaft (76), and a first fixed seat (5) is arranged above the first motor (12), and a spraying robot arm (4) is arranged at one end of the machine body (2) close to the first fixed seat (5), and a linear motor (21) is arranged at the top end of the machine body (2), and a lifting mechanism (3) is arranged at the working end of the linear motor (21), and a second fixed seat (6) is arranged below the lifting mechanism (3), and a connecting device is moved via the second fixed seat (6); The upper end of the first fixing seat (5) is provided with a first fixing cavity, the lower end of the second fixing seat (6) is provided with a second fixing cavity, the first fixing cavity cooperates with the lower surface of the connecting device, the second fixing cavity cooperates with the upper surface of the connecting device, a first air pump (66) is provided inside the second fixing seat (6), a plurality of groups of first through holes (62) are provided at one end of the second fixing cavity away from the first fixing seat (5), and the plurality of groups of first through holes (62) are connected to the air inlet end of the first air pump (66); An air duct (68) and a receiving groove (63) are further provided inside the second fixed seat (6). The air duct (68) is provided in two groups, one group of the air ducts (68) is connected to the air outlet end of the external hot air drying system through an air inlet pipe (67), and the other group of the air ducts (68) is connected to the air inlet end of the external hot air drying system through an air outlet pipe (65). The receiving groove (63) is an annular structure. The receiving groove (63) is provided at the inner outer end of the second fixed seat (6). A first electromagnet (64) is provided at the inner upper end of the receiving groove (63). A sealing plate (61) is provided at the inner lower end of the receiving groove (63). A first magnetic block is embedded at one end of the sealing plate (61) close to the first electromagnet (64).

2. The spraying equipment for producing a connection device with a surface pretreatment function according to claim 1, characterized in that: An active groove (52) is provided at the inner outer end of the first fixing seat (5), the active groove (52) being an annular structure, an induction plate (51) is provided at the inner upper end of the active groove (52), the induction plate (51) is connected to the active groove (52) via an induction spring, the induction plate (51) is aligned with the sealing plate (61), and a piezoelectric sheet is provided at one end of the induction plate (51) close to the induction spring.

3. The spraying equipment for producing a connection device with a surface pretreatment function according to claim 1, characterized in that: A third fixing cavity is provided at the upper end of the third fixing seat (7), a second air pump (71) is provided inside the third fixing seat (7), the third fixing cavity cooperates with the lower surface of the connecting device, a plurality of groups of second through holes (72) are provided at the side end of the third fixing cavity, and the plurality of groups of second through holes (72) are connected to the air inlet end of the second air pump (71).

4. The spraying equipment for producing a connection device with a surface pretreatment function according to claim 3, characterized in that: The pretreatment mechanism (8) comprises a mounting plate (81), a second motor (82), a nozzle (85) and a mounting seat (86); an internal gear (83) and an external gear (87) are arranged inside the mounting plate (81); the internal gear (83) meshes with the external gear (87); the mounting seat (86) is provided with a plurality of groups; each group of mounting seats (86) is arranged on the internal gear (83); each group of mounting seats (86) is provided with a nozzle (85) at a position close to the center of the mounting plate (81); each group of nozzles (85) is connected to an external sandblasting system; the second motor (82) is arranged below the mounting plate (81) and connected to the external gear (87).

5. The spraying equipment for producing a connection device with a surface pretreatment function according to claim 4, characterized in that: The third fixed seat (7) is further provided with a cavity, a movable plate (73), a second electromagnet (74) and a push rod (75) inside. The second electromagnet (74) is arranged at one end of the cavity away from the third fixed cavity. The movable plate (73) is arranged inside the cavity. One end of the movable plate (73) close to the second electromagnet (74) is inlaid with a second magnetic block. The push rods (75) are provided in a plurality of groups. The plurality of groups of push rods (75) are all provided at one end of the movable plate (73) close to the third fixed cavity. A first compression spring is wound around each group of push rods (75). The pretreatment mechanism (8) further comprises a plurality of support rods (84). The support rods (84) are provided in a plurality of groups. Each group of support rods (84) is aligned with a group of push rods (75). A second compression spring is wound around each group of support rods (84).

6. The spraying equipment for producing a connection device with a surface pretreatment function according to claim 5, characterized in that: Two groups of drop holes (811) are provided on the mounting plate (81), and the mounting seat (86) is connected to the nozzle (85) via a rotating shaft and a third motor (861), and the sandblasting angle of the nozzle (85) is adjusted via the third motor (861).

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