Spraying process for radiator workpiece

Abstract

The invention relates to the technical field of spraying equipment, and discloses a method for triggering detection of the initial position of a workpiece; step 2, data acquisition; 3, calculating and determining parameters; step 4, implementing automatic spraying; and 5, finishing spraying and carrying out subsequent treatment. According to the spraying process of the radiator workpiece, the steps of workpiece initial position trigger detection, data acquisition, parameter calculation and determination, automatic spraying implementation, spraying ending and follow-up treatment are sequentially conducted, accurate measurement of the radiator workpiece is achieved through the grating module, and a reliable basis is provided for determination of spraying parameters; the automatic spraying technology is utilized, the spraying route is optimized, radiator workpieces of different shapes are accurately sprayed, the application range is wide, waste of paint is reduced, the radiator workpieces are evenly sprayed, the production cost is reduced, manual operation is reduced in the automatic spraying process, the production period is shortened, and the overall production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spraying equipment, in particular to a heat sink workpiece spraying process. BACKGROUND

[0002] In the heat sink manufacturing process, the spraying link is crucial. Traditional spraying processes often rely on manual experience and intuitive judgment, making it difficult to ensure uniformity and accuracy of spraying, thereby affecting the heat dissipation efficiency and service life of the heat sink.

[0003] To solve this technical problem, some existing heat sink spraying processes use fixed path or preset parameter spraying methods, but shape differences or installation deviations of heat sink workpieces can easily lead to uneven spraying coverage. For example, patent application No. CN202222952037.7 discloses a heat sink sheet surface spraying device, which works as follows: when spraying the heat sink sheet, the heat sink sheet is placed between two groups of fixed plates on the surface of two connecting plates 6, then the electromagnetic valves of the gas cylinders connected to the air guide pipes are connected to the power supply, the moving ends of the gas cylinders drive the second connecting seats to move, the second connecting seats drive the clamping plates to move, the clamping plates rotate around the third connecting seat, the two groups of clamping plates rotate relative to each other, the heat sink sheet is clamped between the two groups of fixed plates, the heat sink sheet is fixed, then the spraying machine is connected to the power supply, the coating is sprayed onto the surface of the heat sink sheet through the nozzle, the sliding block drives the nozzle to move through the control of the electric sliding rail, the heat sink sheet is sprayed, when the heat sink sheet needs to be rotated, the motor is connected to the power supply, the output shaft of the motor drives the second gear to rotate, the second gear drives the first gear to rotate through the external teeth, the first gear drives one of the movable shafts to rotate, the movable shaft drives the clamping plate to rotate through the connecting plate, the clamping plate drives the heat sink sheet to rotate, then the surface of the heat sink sheet is continuously sprayed. However, the heat sink sheet surface spraying device places the heat sink sheet between two groups of fixed plates on the surface of two connecting plates, uses a fixed path or preset parameter spraying method to spray the heat sink sheet, and uneven spraying coverage is prone to occur for heat sink sheets with shape differences or installation deviations, which is not conducive to high-quality production of heat sink sheets. SUMMARY

[0004] The purpose of the present application is to overcome the problems of the prior art and provide a heat sink workpiece spraying process.

[0005] To achieve the above purpose, the present application adopts the following scheme:

[0006] A heat sink workpiece spraying process, comprising the following steps:

[0007] Step one, initial position of workpiece triggering detection;

[0008] The heat sink workpiece is controlled to move to the initial touch data collection area, and the grating detection module is triggered to start detection; this step ensures accurate positioning of the workpiece before spraying, laying a solid foundation for subsequent steps.

[0009] Step two, data collection;

[0010] The grating detection module collects horizontal data, vertical data, and heat sink workpiece shape in the data collection area; the horizontal data includes the length of the front blank area of the grating, the length of the workpiece entity, and the length of the rear blank area of the grating; the vertical data includes the height of the blank area above the grating, the height of the workpiece entity, and the height of the blank area below the grating; in this step, the grating detection module starts to work and collects horizontal data, vertical data, and heat sink workpiece shape in the data collection area, and then feeds back to the spraying control system; the horizontal data and vertical data can provide accurate basis for subsequent parameter calculation.

[0011] Step three, parameter calculation and determination;

[0012] According to the horizontal data, vertical data, and heat sink workpiece shape, the spraying area and the movement parameters of the heat sink workpiece in the spraying area are calculated and determined, and the spraying parameters of the spray gun are calculated; this step is the key to ensure the accuracy of spraying.

[0013] Step four, automatic spraying implementation;

[0014] The heat sink workpiece is controlled to move in the spraying area according to the above determined movement parameters, and the spray gun group is controlled to move up and down on the heat sink workpiece according to the spraying parameters set by the spray gun and the above calculated spraying parameters of the spray gun; after the movement parameters and the calculated spraying parameters of the spray gun are determined, the spraying control system controls the heat sink workpiece to move in the spraying area according to the preset trajectory, and controls the spray gun group to spray according to the calculated spraying parameters. The whole process is highly automated and does not need manual intervention, greatly improving the spraying efficiency and consistency.

[0015] Step five, spraying end and subsequent processing.

[0016] Further, the length of the data collection area is 200-3500mm, and the height is 300-4200mm.

[0017] Further, the spraying area is specifically:

[0018] When the distance from the front end of the heat sink workpiece to the center axis of the last end of the spray gun is equal to the length of the front blank area of the grating, the data collection area is replaced by the spraying area by mirroring;

[0019] The movement parameters of the heat sink workpiece in the spraying area include a movement speed v1 corresponding to a raster front blank area length, a movement speed v2 corresponding to a workpiece entity length, and a movement speed v3 corresponding to a raster rear blank area length.

[0020] Further, the movement speed v1 is 1.0-3.0 m / min; the movement speed v2 is 0.1-0.5 m / min; and the movement speed v3 is 1.0-3.0 m / min.

[0021] Further, the movement speed v1 is the same as the movement speed v3.

[0022] Further, the spraying gun estimated spraying parameters include the number of spraying gun rows required to work and the corresponding positions, the stroke of the spraying gun rows moving up and down, and the initial position of the spraying gun rows spraying.

[0023] The spraying gun set spraying parameters include the total number of spraying gun rows, the spraying coverage interval of adjacent upper and lower spraying gun rows, the distance of the nozzle of the spraying gun being naturally perpendicular to the heat sink workpiece, the up-and-down movement speed of the spraying gun rows, the nozzle diameter of the spraying gun, the powder output speed of the spraying gun, the pitch angle of the spraying gun, and the atomization pressure of the spraying gun.

[0024] Further, the number of spraying gun rows required to work and the corresponding positions are determined according to the raster upper blank area height, the workpiece entity height, the raster lower blank area height, the distance between adjacent upper and lower spraying gun rows, and the spraying coverage interval of adjacent upper and lower spraying gun rows.

[0025] The stroke of the spraying gun rows moving up and down is determined according to the workpiece entity height and the number of times of set up-and-down reciprocating spraying.

[0026] The initial position of the spraying gun rows spraying is determined according to the front end position of the workpiece entity length.

[0027] Further, the total number of spraying gun rows is 6-10 rows; the spraying coverage interval of adjacent upper and lower spraying gun rows is 0-50 mm; and the distance of the nozzle of the spraying gun being naturally perpendicular to the heat sink workpiece is 100-250 mm.

[0028] Further, the heat sink workpiece is controlled to move in the spraying area according to the above determined movement parameters, and the spraying gun rows are controlled to move up and down to spray the heat sink workpiece according to the spraying gun set spraying parameters and the above spraying gun estimated spraying parameters; the specific steps are as follows:

[0029] S1. When the distance from the front end of the heat sink workpiece to the center axis of the last spraying gun is equal to the raster front blank area length, the heat sink workpiece is controlled to move at the movement speed v1, the moving distance is the raster front blank area length, and the heat sink workpiece reaches the position of the center axis of the last spraying gun.

[0030] S2. Control the radiator workpiece to move at a moving speed v2, and the moving distance is the workpiece entity length, and control the spray gun row group to move up and down on the radiator workpiece according to the set spraying parameters and the above-mentioned spraying parameters calculated for the spray gun, and spray;

[0031] S3. When the radiator workpiece reaches the front end of the workpiece entity length, control the spray gun row group to stop spraying, and control the radiator workpiece to move out of the spraying area at a moving speed v3 and a moving distance of the raster rear blank area length.

[0032] Further, the spraying end and subsequent processing specific steps are as follows:

[0033] When the end of the radiator workpiece leaves the spraying area, the spray gun of the spray gun row group is in a spraying-off state at this time, the spraying is completed, and subsequent surface inspection, manual supplementary spraying, manual cooling and quality evaluation processing of the radiator workpiece are performed.

[0034] Compared with the prior art, the present application has the following advantages:

[0035] The present application sequentially passes through the steps of workpiece initial position trigger detection, data acquisition, parameter calculation and determination, automatic spraying implementation and spraying end and subsequent processing, adopts a raster module to realize accurate measurement of the radiator workpiece, provides a reliable basis for determination of spraying parameters, and then utilizes automatic spraying technology to optimize the spraying route, accurately sprays the radiator workpiece of different shapes, has a wide application range, reduces waste of paint, uniformly sprays the radiator workpiece, reduces production cost, and the automatic spraying process reduces manual operation, shortens the production cycle, and improves the overall production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0036] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0037] Figure 1 is a flowchart of the spraying process of the radiator workpiece of the present application.

[0038] Figure 2 is a schematic view of the radiator workpiece of the present application moving into the data acquisition area to be detected by the raster detection module.

[0039] Figure 3 is a schematic view of the radiator workpiece of the present application moving into the spraying area to be sprayed.

[0040] Figure 4 is a schematic view of the radiator workpiece of the present application moving into the spraying area at the start of spraying.

[0041] Figure 5is a schematic view of the heat sink workpiece moving into the spraying area at the end of spraying. DETAILED DESCRIPTION

[0042] The specific embodiments of the present application are described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0043] As shown in Figures 1 to 5 A heat sink workpiece spraying process is realized by a workpiece spraying system. The workpiece spraying system comprises a spraying control system, a first workpiece conveying line, a second workpiece conveying line, a grating detection module, a wireless communication module, and a spraying gun lifting reciprocating machine for lifting and moving to adjust the position of the spraying gun row in the up-down direction. The first workpiece conveying line conveys the heat sink workpiece through the data acquisition area, and the second workpiece conveying line conveys the heat sink workpiece through the spraying area. The grating detection module is wirelessly connected to the spraying control system through the wireless communication module. The spraying control system is electrically connected to the first workpiece conveying line, the second workpiece conveying line, and the spraying gun lifting reciprocating machine. The spraying gun row is composed of several spraying guns arranged horizontally and installed on the spraying gun lifting reciprocating machine. The heat sink workpiece spraying process comprises the following steps:

[0044] Step one, initial position triggering detection of the workpiece;

[0045] The heat sink workpiece is controlled to move to the initial position of the data acquisition area, triggering the grating detection module to start detection. The length of the data acquisition area is 200-3500mm, preferably 2000mm; the height is 300-4200mm, preferably 3200mm. This step design ensures accurate positioning of the workpiece before spraying, laying a solid foundation for the subsequent steps.

[0046] Step two, data acquisition;

[0047] The grating detection module receives the horizontal data, vertical data, and heat sink workpiece shape in the data acquisition area; wherein the data acquisition area is denoted as SA. As shown in Figure 1 The horizontal data includes the length of the blank area in front of the grating, the length of the workpiece entity, and the length of the blank area behind the grating, denoted as L1, L2, and L3 respectively; the vertical data includes the height of the blank area above the grating, the height of the workpiece entity, and the height of the blank area below the grating, denoted as H1, H2, and H3 respectively. In this step design, the grating detection module starts to work, collects the horizontal data, vertical data, and heat sink workpiece shape in the data acquisition area, and then feeds back to the spraying control system. The horizontal data and vertical data can provide accurate basis for subsequent parameter calculation.

[0048] Step three, parameter calculation and determination;

[0049] The spraying area is determined according to the transverse data, the vertical data and the shape of the heat sink workpiece, and the movement parameters of the heat sink workpiece in the spraying area, and the spraying parameters of the spray gun are calculated. This step is the key to ensure the accuracy of spraying.

[0050] The spraying area is specifically: when the distance from the front end of the heat sink workpiece to the center axis of the last end of the spray gun is equal to the length of the front blank area of the grating, the data acquisition area is mirror replaced into the spraying area; wherein the spraying area is denoted as SB, as shown in Figures 3-5 The design of the spraying area is beneficial to the accurate spraying of different shapes of heat sink workpieces by the spray gun row group, has a wide range of application, reduces the waste of paint, uniformly sprays the heat sink workpiece, reduces the production cost, and the automatic spraying process reduces the manual operation, shortens the production cycle, and improves the overall production efficiency.

[0051] The movement parameters of the heat sink workpiece in the spraying area include the movement speed v1 corresponding to the length of the front blank area of the grating, the movement speed v2 corresponding to the length of the workpiece entity, and the movement speed v3 corresponding to the length of the rear blank area of the grating, and the movement speed v1, the movement speed v2 and the movement speed v3 are limited in a set range, that is, the movement speed v1 is 1.0-3.0 m / min; the movement speed v2 is 0.1-0.5 m / min; and the movement speed v3 is 1.0-3.0 m / min.

[0052] In addition, the spraying parameters calculated by the spray gun include the number of spray gun rows required to work and the corresponding positions, the stroke of the up and down movement of the spray gun row group, the initial position of the spray gun row group for spraying;

[0053] Specifically, the number of spray gun rows required to work and the corresponding positions are determined according to the height of the blank area on the grating, the height of the workpiece entity, the height of the blank area below the grating, the distance between the adjacent upper and lower two rows of spray gun rows, and the spraying coverage interval of the adjacent upper and lower two rows of spray gun rows; the stroke of the up and down movement of the spray gun row group is determined according to the height of the workpiece entity and the number of times of set up and down reciprocating spraying; and the initial position of the spray gun row group for spraying is determined according to the front end position of the length of the workpiece entity.

[0054] The initial position of the spray gun row group for spraying is determined according to the front end position of the length of the workpiece entity. Referring to the shape of the heat sink workpiece, when the heat sink workpiece moves in the direction of the movement speed v1, the moving distance is the length of the front blank area of the grating, and reaches the center axis position of the last end of the spray gun, that is, the front end of the heat sink workpiece coincides with the center axis of the last end of the spray gun, which is the initial position of the spray gun row group for spraying.

[0055] The spray gun setting spraying parameters include total number of spray gun row groups, spraying coverage interval of adjacent upper and lower two rows of spray gun row groups, distance of nozzle of spray gun naturally perpendicular to radiator workpiece, moving speed of spray gun row groups up and down, nozzle diameter of spray gun, powder output speed of spray gun, pitch angle of spray gun, and atomization pressure of spray gun. Specifically, the total number of spray gun row groups can be 6-10 rows, and of course the total number of spray gun row groups can be reasonably set according to requirements; the spraying coverage interval of adjacent upper and lower two rows of spray gun row groups is 0-50 mm; the distance of nozzle of spray gun naturally perpendicular to radiator workpiece is 100-250 mm. As for the nozzle diameter of spray gun, the powder output speed of spray gun, the pitch angle of spray gun, and the atomization pressure of spray gun, they are reasonably set according to requirements, which is the same as the existing conventional technology.

[0056] Step four, automatic spraying implementation;

[0057] The radiator workpiece is controlled to move in the spraying area according to the determined moving parameters, and the spray gun row groups are controlled to move up and down on the radiator workpiece according to the spray gun setting spraying parameters and the above-mentioned spray gun calculated spraying parameters; the specific steps are as follows:

[0058] S1. When the distance from the front end of the radiator workpiece to the center axis of the last end of the spray gun is equal to the length of the front blank area of the grating, the radiator workpiece is controlled to move at a moving speed v1, and the moving distance is the length of the front blank area of the grating, to reach the center axis position of the last end of the spray gun;

[0059] S2. The radiator workpiece is controlled to move at a moving speed v2, and the moving distance is the length of the workpiece entity, and the spray gun row groups are controlled to move up and down on the radiator workpiece according to the setting spraying parameters and the above-mentioned spray gun calculated spraying parameters;

[0060] S3. When the radiator workpiece reaches the front end of the workpiece entity length, the spray gun row groups are controlled to stop spraying, and the radiator workpiece is controlled to move at a moving speed v3, and the moving distance is the length of the rear blank area of the grating, to move out of the spraying area.

[0061] After the moving parameters and the spray gun calculated spraying parameters are determined, the spraying control system controls the radiator workpiece to move in the spraying area according to the preset trajectory, and controls the spray gun row groups to spray according to the calculated spraying parameters. The whole process is highly automated and does not require manual intervention, greatly improving the spraying efficiency and consistency.

[0062] Step five, spraying end and subsequent processing.

[0063] Specifically, when the end of the radiator workpiece leaves the spraying area, the spray guns of the spray gun row groups are in a spraying closed state at this time, the spraying is ended, and subsequent surface inspection, manual supplementary spraying, manual cooling and quality evaluation processing of the radiator workpiece are performed.

[0064] Preferably, the moving speed v1 is the same as the moving speed v3. The moving speed v1 and the moving speed v3 are moving speeds when non-spraying, and can be set to the same speed according to requirements.

[0065] In summary, the embodiment of the present application provides a heat sink workpiece spraying process, which sequentially passes through the steps of workpiece initial position trigger detection, data acquisition, parameter calculation and determination, automatic spraying implementation, and spraying end and subsequent processing. The grating module is used to realize accurate measurement of the heat sink workpiece, to provide a reliable basis for determination of the spraying parameters. Then, the automatic spraying technology is used to optimize the spraying route, to accurately spray heat sink workpieces of different shapes, to have a wide range of applications, to reduce waste of paint, to uniformly spray the heat sink workpiece, to reduce production cost, and to reduce manual operation in the automatic spraying process, to shorten the production cycle, and to improve the overall production efficiency.

[0066] The above description is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should be considered as the protection scope of the present application.

Claims

1. A spray process for a heat sink workpiece, characterized by, It comprises the following steps: Step one, initial position of workpiece triggering detection; Control the radiator workpiece to move to the initial touch data collection area, and trigger the grating detection module to start detection; Step two, data collection; Receive the horizontal data, vertical data and the shape of the radiator workpiece collected by the grating detection module in the data collection area; wherein the horizontal data includes the length of the blank area in front of the grating, the length of the workpiece entity, and the length of the blank area behind the grating; the vertical data includes the height of the blank area above the grating, the height of the workpiece entity, and the height of the blank area below the grating; Step three, parameter calculation and determination; According to the horizontal data, vertical data and the shape of the radiator workpiece, the spraying area and the moving parameters of the radiator workpiece in the spraying area are calculated and determined, and the spraying parameters of the spray gun are calculated; Step four, automatic spraying implementation; Control the radiator workpiece to move in the spraying area according to the above determined moving parameters, and control the spray gun group to move up and down on the radiator workpiece according to the spraying parameters of the spray gun and the above calculated spraying parameters of the spray gun; Step five, spraying end and subsequent processing.

2. The spray process of a heat sink workpiece according to claim 1, wherein, The length of the data collection area is 200-3500mm, and the height is 300-4200mm.

3. The spray process of a heat sink workpiece of claim 1, wherein, The spraying area is specifically: When the distance from the front end of the radiator workpiece to the center axis of the last end of the spray gun is equal to the length of the blank area in front of the grating, the data collection area is replaced by the spraying area by mirroring; The moving parameters of the radiator workpiece in the spraying area include the moving speed v1 corresponding to the length of the blank area in front of the grating, the moving speed v2 corresponding to the length of the workpiece entity, and the moving speed v3 corresponding to the length of the blank area behind the grating.

4. The spray process for heat spreader workpieces of claim 3, wherein, The moving speed v1 is 1.0-3.0m / min; the moving speed v2 is 0.1-0.5m / min; and the moving speed v3 is 1.0-3.0m / min.

5. The spray process of a heat sink workpiece according to claim 3 or 4, wherein, The moving speed v1 is the same as the moving speed v3.

6. The spray process for heat spreader workpieces of claim 3, wherein, The spraying parameters of the spray gun include the number of spray gun groups that need to work and their corresponding positions, the stroke of the spray gun group moving up and down, and the initial position of the spray gun group spraying; The spraying parameters of the spray gun include the total number of the spray gun group, the spraying coverage interval of the adjacent upper and lower two rows of spray gun groups, the distance of the nozzle of the spray gun being naturally perpendicular to the radiator workpiece, the moving speed of the spray gun group up and down, the diameter of the nozzle of the spray gun, the powder output speed of the spray gun, the inclination angle of the spray gun, and the atomization pressure of the spray gun.

7. The spray process for heat sink workpieces of claim 6, wherein, The number of spray gun groups that need to work and their corresponding positions are determined according to the height of the blank area above the grating, the height of the workpiece entity, the height of the blank area below the grating, the distance between the adjacent upper and lower two rows of spray gun groups, and the spraying coverage interval of the adjacent upper and lower two rows of spray gun groups; The stroke of the spray gun group moving up and down is determined according to the height of the workpiece entity and the number of times of setting up and down reciprocating spraying; The initial position of the spray gun group spraying is determined according to the front end position of the length of the workpiece entity.

8. The spray process for heat spreader workpieces of claim 6, wherein, The spraying coverage interval of the adjacent upper and lower two rows of spray gun groups is 0-50mm, and the distance of the nozzle of the spray gun being naturally perpendicular to the radiator workpiece is 100-250mm.

9. The spray process of a heat sink workpiece of claim 3, wherein, The control radiator workpiece moves in the spraying area according to the determined movement parameters, and the control spray gun group sprays the radiator workpiece according to the set spraying parameters and the calculated spraying parameters of the spray gun. S1. When the distance between the front end of the radiator workpiece and the center axis of the last spray gun is equal to the length of the front blank area of the grating, the radiator workpiece is controlled to move at a speed of v1, and the moving distance is the length of the front blank area of the grating, and the center axis of the last spray gun is reached. S2. The radiator workpiece is controlled to move at a speed of v2, and the moving distance is the length of the workpiece body, and the spray gun group is controlled to spray the radiator workpiece according to the set spraying parameters and the calculated spraying parameters of the spray gun. S3. When the radiator workpiece reaches the front end of the workpiece body, the spray gun group stops spraying, and the radiator workpiece is controlled to move at a speed of v3, and the moving distance is the length of the rear blank area of the grating, and the radiator workpiece is moved out of the spraying area.

10. The spray process of a heat sink workpiece of claim 1, wherein, The spraying ends and subsequent processing steps are as follows: When the end of the radiator workpiece leaves the spraying area, the spray guns of the spray gun group are in a spraying-off state at this time, the spraying ends, and subsequent surface inspection, manual spraying, manual cooling and quality evaluation of the radiator workpiece are performed.

Images