Double-station automatic oil injection machine and processing method thereof

Abstract

The application discloses a double-station automatic oil spraying machine and a processing method thereof, and relates to the field of automatic spraying equipment.The double-station automatic oil spraying machine comprises a machine table, an oil spraying module, an upper cleaning module and a multi-station turntable.The oil spraying module is driven by three linkage assemblies arranged in a triangular shape to realize free adjustment of multiple angles.The multi-station turntable is provided with at least two spraying stops, which are switched between the oil spraying station and the cleaning station by rotation.During processing, the oil spraying and cleaning processes are operated in parallel, a feeding mechanism automatically completes workpiece feeding, transmission and discharging, and the cleaning module cooperates with a blowing device to perform online scrubbing and drying on the spraying stop.The application improves the uniformity of complex curved surface spraying by using the three-linkage spraying head, realizes synchronous spraying and cleaning by using the double-station turntable, significantly improves the production efficiency, integrates the automatic cleaning system, reduces the manual maintenance cost and ensures the stability of the spraying quality.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, specifically to a dual-station automatic oil injection machine and its processing method. Background Technology

[0002] Most of the automatic spraying machines commonly found on the market adopt a single-station operation mode, that is, a single workpiece placement area is set on a turntable or carrier platform. After the spraying action is completed, the spraying must be paused. The next spraying cycle can only be carried out after the workpiece is removed or the nozzle and masking fixture are cleaned manually. This serial operation mode seriously restricts production efficiency and cannot meet the needs of large-scale continuous production.

[0003] Meanwhile, the nozzles in existing spray guns are usually fixed on the frame, and their spray angle can only be adjusted manually or by simple oscillation in a single axis. When there are slopes, grooves or complex curvature changes on the workpiece surface, it is difficult for the fixed-angle nozzle to ensure uniform coating coverage, which can easily lead to quality defects such as local missed spraying or uneven coating thickness.

[0004] In addition, during the spraying process, a large amount of splashed paint residue will inevitably adhere to the masking positions or the surface of the fixture. Traditionally, the machine needs to be stopped regularly and the positions need to be manually removed for wiping or soaking and cleaning. This is not only time-consuming and labor-intensive, but the frequent machine stops and disassemblies will also disrupt the production cycle. Furthermore, manual cleaning is difficult to completely remove the solidified paint inside the spraying channel. Over time, this accumulation will cause the channel size to shrink or even become blocked, directly affecting the accuracy of the subsequent spraying trajectory and the yield of the workpiece appearance.

[0005] Although some equipment has introduced simple air-blowing cleaning devices, they can only remove surface dust and have little effect on highly adhesive liquid or semi-cured coating residues. There is a lack of an integrated cleaning system that can clean the spray booth online, efficiently and thoroughly.

[0006] Therefore, the industry urgently needs a spray painting equipment that can perform spraying and cleaning in parallel, with flexible adjustable nozzle angles and automated online cleaning capabilities, in order to fundamentally improve spraying efficiency, ensure spraying quality, and reduce manual maintenance costs. Summary of the Invention

[0007] The purpose of this invention is to provide a dual-station automatic oil injection machine that solves the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a dual-station automatic oil spraying machine, comprising a machine base, an oil spraying module, an upper cleaning module and a multi-station turntable, wherein the machine base is provided with an oil spraying station and a cleaning station, the oil spraying station and the cleaning station being located below the oil spraying module and the upper cleaning module, respectively. The paint spraying module includes three linkage components and one nozzle. The three linkage components are arranged in a triangle. Each linkage component includes a servo motor and a linkage structure that is linked to the servo motor. The end of the linkage structure away from the linkage component is movably connected to the nozzle. The three linkage components drive the nozzle to perform multi-angle adjustments. The multi-station turntable includes a first lifting module, a first rotating module set on the first lifting module, and a turntable set on the first rotating module. The turntable is provided with at least one spraying position, and several spraying channels are provided on the spraying position. The spraying position covers the workpiece to be sprayed. The first rotating module drives the turntable to rotate, and also moves the spraying gear to the corresponding positions of the oil spraying station and the cleaning station.

[0009] In this invention, a feeding mechanism is also included. The feeding mechanism includes at least a feeding component. The feeding component includes a transmission module and a second lifting module disposed on the feeding module. A positioning fixture is disposed on the second lifting module. The positioning fixture is used to position and carry the workpiece. The transmission module drives the positioning fixture to be transmitted to the oil spraying station.

[0010] In this invention, the feeding mechanism further includes a feeding component and a discharging component. The feeding component includes a three-axis transmission module and a suction cup disposed at the movable end of the three-axis transmission module. The discharging component includes a two-axis transmission module and a finger cylinder disposed at the movable end of the two-axis transmission module.

[0011] In this invention, the transmission module is a second rotating module, and the second rotating module is provided with four second lifting modules, which are evenly arranged.

[0012] In this invention, the upper cleaning module includes a propulsion module, a third lifting module disposed at the movable end of the propulsion module, and a rotary motor connected to the lower end of the third lifting module. The movable end of the rotary motor is connected to a brush head, and the brush head is also fitted with a water-filling bearing sleeve.

[0013] In this invention, a lower cleaning module is provided directly below the upper cleaning module. The lower cleaning module includes a fourth lifting module and a conical brush disposed on the fourth lifting module. The brush head and the conical brush are arranged facing each other, and the cleaning station is located between the brush head and the conical brush.

[0014] In this invention, the machine is also equipped with a blower, the output end of which faces the cleaning station.

[0015] In this invention, the turntable is provided with two spraying positions, and the oil spraying module and the upper cleaning module can be respectively matched with the corresponding spraying positions for the process.

[0016] A processing method for a dual-station automatic oil injection machine includes the following steps: Step 1: The workpiece to be sprayed is moved to the spraying station, and the spraying baffle with no residual liquid on the corresponding side covers the workpiece to be sprayed. Step 2: The three linkage components on the spraying module drive the nozzle to adjust at multiple angles and spray oil. The oil is sprayed over the paint channel and onto the workpiece, and the corresponding spraying position is in an uncleaned state. Step 3: The workpiece that has been painted is removed from the painting station, and then another workpiece to be painted enters the painting station. Step 4: The spraying station that has completed Step 2 but is not yet cleaned is moved to the cleaning station via a multi-station turntable; Step 5: The upper cleaning module performs a cleaning process on the spraying positions in the cleaning station. After cleaning, the spraying positions are free of residual liquid. Step 6: The spraying station with no residual liquid is moved to the oil spraying station by the multi-station turntable; Steps three and four can be performed simultaneously, as can steps two and five.

[0017] In steps one to three, the workpieces are driven by the feeding mechanism to complete the loading, feeding and unloading of the workpieces; The cleaning process in step five further includes a coordinated cleaning process involving the upper cleaning module, the lower cleaning module, and the blowing device.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention employs a nozzle structure driven by three interconnected components arranged in a triangle. Each component is independently controlled via a servo motor and linkage. When the three components work together, they enable the nozzle to achieve multi-degree-of-freedom composite angle adjustment within space. Compared to traditional fixed or single-axis swing nozzles, this significantly improves the flexibility and response speed of nozzle attitude adjustment. It can precisely adjust the spray direction for workpieces with complex curved surfaces, deep cavities, or tilted features, ensuring that the oil mist always reaches the workpiece surface at the optimal incident angle. This effectively eliminates blind spots in the coating process, greatly improves the uniformity and adhesion of the coating, and significantly reduces the rework rate caused by improper angles.

[0019] This invention, by setting up a multi-station turntable, with a first lifting module and a first rotating module, and at least two spraying positions on the turntable, combined with the precise indexing rotation of the first rotating module, enables the spraying positions to switch quickly and accurately back and forth between the oil spraying position and the cleaning position. This achieves complete overlap and parallelism between the spraying and cleaning operations on the time axis. That is, while the oil spraying module is spraying the current workpiece, the upper cleaning module can simultaneously clean the other spraying position, effectively eliminating the auxiliary time occupied by the cleaning process, increasing the overall utilization rate of the equipment by nearly 100%, and significantly improving the cycle efficiency of mass production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is a partial structural diagram of the present invention. Figure 1 ; Figure 4 This is a partial structural diagram of the present invention. Figure 2 ; Figure 5 This is a partial structural diagram of the present invention. Figure 3 ; Figure 6 This is a partial structural diagram of the present invention. Figure 4 ; Figure 7 This is a partial structural diagram of the present invention. Figure 5 .

[0021] The reference numerals and names in the figure are as follows: 1. Machine base; 2. Spraying module; 3. Upper cleaning module; 4. Multi-station turntable; 5. Spray nozzle; 6. Linkage assembly; 7. Servo motor; 8. Linkage structure; 9. First lifting module; 10. First rotating module; 11. Turntable; 12. Spraying position; 13. Spraying channel; 14. Feeding mechanism; 15. Transmission module; 16. Second lifting module; 17. Positioning fixture; 18. Loading assembly; 19. Unloading assembly; 20. Three-axis transmission module; 21. Suction cup; 22. Dual-axis transmission module; 23. Finger cylinder; 24. Second rotating module; 25. Third lifting module; 26. Rotary motor; 27. Brush head; 28. Water-filling bearing sleeve; 29. ​​Lower cleaning module; 30. Fourth lifting module; 31. Conical brush; 32. Blowing device; 33. Propulsion module. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Please see Figures 1 to 5 The present invention provides an embodiment of a dual-station automatic oil spraying machine and its processing method. The machine base 1 serves as a supporting base. An oil spraying module 2, an upper cleaning module 3, and a multi-station turntable 4 are fixedly installed inside the machine base 1. The machine base 1 is divided into an oil spraying station and a cleaning station. The oil spraying station is located directly below the oil spraying module 2, and the cleaning station is located directly below the upper cleaning module 3.

[0025] The spraying module 2 consists of three linkage components 6 and one nozzle 5. The three linkage components 6 are arranged in a triangle in space. Each linkage component 6 includes a servo motor 7 and a linkage structure 8 connected to the servo motor 7. The end of the linkage structure 8 away from the linkage component 6 is movably connected to the nozzle 5. When the three servo motors 7 drive their respective linkage structures 8 to move according to a preset trajectory, the three linkage components 6 work together to enable the nozzle 5 to freely adjust multiple angles such as pitch, yaw and rotation in three-dimensional space. This allows for adjusting the spraying angle for workpieces of different shapes and sizes, ensuring uniform spraying without dead angles.

[0026] The multi-station turntable 4 includes a first lifting module 9, a first rotating module 10 mounted on the first lifting module 9, and a turntable 11 fixed at the output end of the first rotating module 10. The first lifting module 9 can drive the entire turntable 11 to move up and down to adapt to the height requirements during oil spraying and cleaning. The first rotating module 10 drives the turntable 11 to rotate around the vertical axis. The turntable 11 is provided with two spraying positions 12. Each spraying position 12 has several through-holes 13 for spraying. When the spraying position 12 covers the workpiece to be sprayed, it not only shields the non-spraying area, but also allows the oil mist sprayed from the nozzle 5 to pass through the spraying holes 13 and be accurately deposited on the surface of the workpiece. The rotation of the first rotating module 10 can accurately move each spraying position 12 to the corresponding position of the oil spraying station and the cleaning station in sequence, thereby realizing the alternating operation of the two stations.

[0027] In the feeding stage, the dual-station automatic spraying machine is also equipped with a feeding mechanism 14. The feeding mechanism 14 includes at least a feeding component, which mainly consists of a transmission module 15 and a second lifting module 16 set on the transmission module 15. A positioning fixture 17 is fixed on the second lifting module 16. The positioning fixture 17 is used to carry and position the workpiece. The transmission module 15 is responsible for transmitting the positioning fixture 17 together with the workpiece along the set path to the spraying station so that the workpiece and the spraying position 12 can form a covering fit.

[0028] Furthermore, the feeding mechanism 14 also includes a loading component 18 and a unloading component 19. The loading component 18 adopts a three-axis transmission module 20 and a suction cup 21 is installed at its movable end. The suction cup 21 is driven by the three-axis linkage to grab the workpiece to be processed and place it on the positioning fixture 17 to realize automated loading. The unloading assembly 19 adopts a dual-axis transmission module 22 and installs a finger cylinder 23 at its movable end. The finger cylinder 23 is driven by the dual-axis motion to pick up the sprayed workpiece and transfer it to the unloading area to complete the collection of finished products.

[0029] In this embodiment, the transmission module 15 adopts a second rotating module 24, on which four second lifting modules 16 are evenly arranged. Each second lifting module 16 corresponds to a positioning fixture 17. In this way, under the intermittent rotation of the second rotating module 24, the four workstations can simultaneously perform loading, waiting to be sprayed, spraying and unloading operations, which greatly improves the production cycle.

[0030] For cleaning and maintenance of the spraying position 12, the upper cleaning module 3 includes a propulsion module 33, a third lifting module 25 connected to the movable end of the propulsion module 33, and a rotary motor 26 connected to the lower end of the third lifting module 25. The movable end of the rotary motor 26 is equipped with a brush head 27, and a water-filling bearing sleeve 28 is also sleeved on the outside of the brush head 27. The propulsion module 33 simultaneously drives the third lifting module 25 and the brush head 27 to move back and forth. The third lifting module 25 drives the brush head 27 to descend to the cleaning position. At the same time, the rotary motor 26 drives the brush head 27 to rotate at high speed. Combined with the water-filling bearing sleeve 28, cleaning fluid is introduced to brush the spraying position 12 with residual paint.

[0031] In conjunction with the upper cleaning module 3, a lower cleaning module 29 is also provided directly below the cleaning station. The lower cleaning module 29 includes a fourth lifting module 30 and a conical brush 31 set on the fourth lifting module 30. The upper brush head 27 and the lower conical brush 31 are arranged facing each other, and the spraying baffle 12 is located exactly between the two. When the fourth lifting module 30 pushes the conical brush 31 up, it and the brush head 27 together clamp the upper and lower surfaces of the spraying baffle 12 to achieve double-sided brushing and effectively remove the liquid paint remaining in the paint channel 13 and on the surface of the baffle.

[0032] The machine 1 is also equipped with a blower 32, the output end of which faces the cleaning station. After the brushing is completed, the blower 32 blows compressed air to the cleaning station to blow away the residual cleaning liquid and the detached paint residue, so that the spraying position 12 can quickly return to a state without residual liquid, and prepare for the next spraying.

[0033] When the turntable 11 is equipped with two spraying positions 12, the oil spraying module 2 and the upper cleaning module 3 can perform oil spraying and cleaning processes simultaneously with the corresponding spraying positions 12, thereby further improving the efficiency of parallel operation.

[0034] Based on the above structure, the processing method of this dual-station automatic spray painting machine follows the following sequential process in actual operation: First, the feeding component 18 of the feeding mechanism 14 picks up the workpiece to be sprayed and places it on the positioning fixture 17, which is then conveyed to the spray painting station via the transmission module 15. At the same time, the multi-station turntable 4 rotates a spraying position 12 in a state without residual liquid to the spray painting station and covers the workpiece to be sprayed. Subsequently, the three linkage components 6 of the spray painting module 2 drive the nozzle 5 to perform multi-angle dynamic adjustment according to the preset path, and start spraying. The oil mist passes through the paint spraying channel 13 and is evenly sprayed onto the surface of the workpiece. After the workpiece is sprayed, the spraying position 12 becomes uncleaned due to paint contamination. Then, the sprayed workpiece is removed from the spray painting station by the transmission module 15 and is handled by the finger air of the unloading component 19. The cylinder 23 picks up and removes the workpiece, while another workpiece to be sprayed is sent into the spraying station by the positioning fixture 17 on the other side. The uncleaned spraying station 12 is rotated by the first rotating module 10, which drives the turntable 11 to rotate and move it to the cleaning station. At this time, the third lifting module 25 of the upper cleaning module 3 drives the brush head 27 to descend, and the rotary motor 26 drives the brush head 27 to rotate. At the same time, the fourth lifting module 30 of the lower cleaning module 29 pushes the conical brush 31 to rise. The two brush the upper and lower surfaces of the spraying station 12. The water bearing sleeve 28 continuously supplies cleaning fluid. After brushing, the blower 32 blows air to the cleaning station to dry it, so that the spraying station 12 returns to a state without residual fluid. Then, the clean spraying station 12 is driven back to the spraying station by the first rotating module 10, ready to cover the next new workpiece.

[0035] Throughout the process, the exit of the workpiece that has been sprayed and the entry of the next workpiece to be sprayed into the spraying station can be carried out simultaneously, that is, steps three and four can be executed simultaneously; at the same time, the spraying module 2 sprays the workpiece at the current station and the upper cleaning module 3 cleans the spraying position 12 of the cleaning station, that is, steps two and five are carried out in parallel, and the two stations do not interfere with each other, realizing an efficient dual-station alternating cycle.

[0036] Throughout the cycle, the feeding component 18, the transmission module 15, the second rotating module 24, and the unloading component 19 of the feeding mechanism 14 coordinate their actions to complete the entire process of automatic feeding, conveying, and unloading of the workpiece. In the cleaning process, the upper cleaning module 3, the lower cleaning module 29, and the blowing device 32 perform actions such as descent, rotation brushing, and drying in sequence to ensure that the spraying station 12 is clean and free of residual liquid before each spraying, thereby ensuring that the spraying quality of each batch of workpieces is stable and consistent.

[0037] It will be apparent to those skilled in the art that the present 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 its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dual-station automatic paint sprayer, comprising a machine base, characterized in that, The machine is equipped with an oil spraying module, an upper cleaning module and a multi-station turntable. The machine is equipped with an oil spraying station and a cleaning station, which are located below the oil spraying module and the upper cleaning module, respectively. The paint spraying module includes three linkage components and one nozzle. The three linkage components are arranged in a triangle. Each linkage component includes a servo motor and a linkage structure that is linked to the servo motor. The end of the linkage structure away from the linkage component is movably connected to the nozzle. The three linkage components drive the nozzle to perform multi-angle adjustments. The multi-station turntable includes a first lifting module, a first rotating module set on the first lifting module, and a turntable set on the first rotating module. The turntable is provided with at least one spraying position, and several spraying channels are provided on the spraying position. The spraying position covers the workpiece to be sprayed. The first rotating module drives the turntable to rotate, and also moves the spraying gear to the corresponding positions of the oil spraying station and the cleaning station.

2. The dual-station automatic oil injection machine according to claim 1, characterized in that, It also includes a feeding mechanism, which includes at least a feeding component. The feeding component includes a transmission module and a second lifting module disposed on the feeding module. The second lifting module is provided with a positioning fixture, which is used to position and carry the workpiece. The transmission module drives the positioning fixture to be transmitted to the oil spraying station.

3. The dual-station automatic oil injection machine according to claim 2, characterized in that, The feeding mechanism further includes a feeding component and a discharging component. The feeding component includes a three-axis transmission module and a suction cup disposed at the movable end of the three-axis transmission module. The discharging component includes a two-axis transmission module and a finger cylinder disposed at the movable end of the two-axis transmission module.

4. A dual-station automatic oil injection machine according to claim 2, characterized in that, The transmission module is a second rotating module, which is equipped with four second lifting modules, and the four second lifting modules are evenly arranged.

5. A dual-station automatic oil injection machine according to claim 1, characterized in that, The upper cleaning module includes a propulsion module, a third lifting module located at the movable end of the propulsion module, and a rotary motor connected to the lower end of the third lifting module. The movable end of the rotary motor is connected to a brush head, and the brush head is also fitted with a water-filling bearing sleeve.

6. A dual-station automatic oil injection machine according to claim 5, characterized in that, A lower cleaning module is also provided directly below the upper cleaning module. The lower cleaning module includes a fourth lifting module and a conical brush disposed on the fourth lifting module. The brush head and the conical brush are arranged facing each other, and the cleaning station is located between the brush head and the conical brush.

7. A dual-station automatic oil injection machine according to claim 6, characterized in that, The machine is also equipped with a blower, with the output end of the blower facing the cleaning station.

8. A dual-station automatic oil injection machine according to claim 1, characterized in that, The turntable is equipped with two spraying positions, and the oil spraying module and the upper cleaning module can be used in conjunction with the corresponding spraying positions for the process.

9. The processing method of a dual-station automatic oil injection machine as described in any one of claims 1 to 8, characterized in that, Includes the following steps: Step 1: The workpiece to be sprayed is moved to the spraying station, and the spraying baffle with no residual liquid on the corresponding side covers the workpiece to be sprayed. Step 2: The three linkage components on the spraying module drive the nozzle to adjust at multiple angles and spray oil. The oil is sprayed over the paint channel and onto the workpiece, and the corresponding spraying position is in an uncleaned state. Step 3: The workpiece that has been painted is removed from the painting station, and then another workpiece to be painted enters the painting station. Step 4: The spraying station that has completed Step 2 but is not yet cleaned is moved to the cleaning station via a multi-station turntable; Step 5: The upper cleaning module cleans the spraying positions in the cleaning station. After cleaning, the spraying positions are dried until there is no residual liquid. Step 6: The spraying station with no residual liquid is moved to the oil spraying station by the multi-station turntable; Steps three and four can be performed simultaneously, as can steps two and five.

10. The processing method of a dual-station automatic oil injection machine according to claim 9, characterized in that, In steps one to three, the workpieces are driven by the feeding mechanism to complete the loading, feeding and unloading of the workpieces; The cleaning process in step five further includes a coordinated cleaning process involving the upper cleaning module, the lower cleaning module, and the blowing device.

Images