Hydraulic inversion spray platform

Abstract

The utility model relates to a turnover platform technical field, and disclose a kind of hydraulic pressure overturning spraying platform, and the mutual cooperation between the structure such as setting positioning device, stud, nut is realized adjusting clamping workpiece, and it is connected between rotating down pressure cylinder and external air source, by the gas supply to rotating down pressure cylinder inside, rotating down pressure cylinder is driven to rotate strip synchronous motion by output shaft, rotating strip is driven stud and butt head to move together when moving, by the down pressure operation of rotating down pressure cylinder, the surface of butt head is on the surface of workpiece, realize the positioning clamping effect of workpiece, if the distance between butt head and long plate surface is insufficient to clamp workpiece before use, by twisting nut, the position of stud at the end of rotating strip is pulled up, then nut is tightened, the operation of changing clamping thickness is played, the effect of clamping workpiece is played.

Description

Technical Field

[0001] This utility model relates to the field of flipping platform technology, and in particular to a hydraulic flipping spraying platform. Background Technology

[0002] The hydraulic tilting spraying platform is a specialized piece of equipment used for spraying coatings on workpiece surfaces. It uses a hydraulic system to drive the platform to tilt at multiple angles, ensuring that the workpiece is evenly exposed within the spray gun's working range during the spraying process, thereby improving spraying efficiency and quality.

[0003] In existing technologies, during workpiece processing and spraying, the workpiece's center of gravity must be aligned with the platform's rotation axis, with an eccentricity ≤ 5% of the platform length. Asynchronous hydraulic cylinder operation can lead to overturning. According to utility model patent CN220333966U, a self-locking hydraulic tilting platform includes a base with an operating platform rotatably connected to it. Two first clamping plates are slidably connected to both ends of one side of the operating platform. A motor is mounted on one side of the operating platform, and second clamping plates are slidably connected to both ends of the same side. Two hydraulic push rods are mounted on the base, with their output ends mounted on the operating platform. In this utility model, a lead screw rotates, causing the two second clamping plates to move closer together. Two pressing plates clamp and align the workpiece. The lead screw drives two gears to rotate, which in turn drive multiple racks to move. The racks move the first clamping plates together, clamping and locking the workpiece. The workpiece is then moved to the center position of the operating platform via the two second clamping plates, eliminating the need for manual adjustment, reducing workload, and improving work efficiency.

[0004] In the aforementioned referenced document, the first and second clamping plates are synchronously contracted or opened by a motor to clamp and release the workpiece. However, since the strokes of the first and second clamping plates are synchronized, it is only suitable for clamping workpieces of a specific size. Due to the height and slope angle of the first clamping plate, it can only limit the clamping of workpieces of a specific thickness and cannot be adapted to clamping different workpieces. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a hydraulic flipping spraying platform, which has the advantages of automatic centering and stable clamping, thus solving the problems mentioned in the background technology.

[0006] This utility model provides the following technical solution: a hydraulic tilting spraying platform, including a frame, with fixed columns fixedly installed inside the frame, and connecting blocks A symmetrically fixedly installed on the inner wall of the frame. A movable frame is provided above the frame, and rotating sleeves are symmetrically fixedly installed at the bottom of the movable frame on the outer ring of the fixed columns. The rotating sleeves are rotatably sleeved on the outer ring of the fixed columns. A connecting plate is fixedly installed at the top of the movable frame, with a long plate on one side and a short plate on the other side. Connecting blocks D are symmetrically fixedly installed on the inner wall of the middle part of the movable frame, and a hydraulic cylinder B is connected between connecting blocks A and connecting blocks D. A centering device is installed inside the movable frame, and two positioning devices are symmetrically fixedly installed at the top of the movable frame.

[0007] With the above structural setup, the workpiece can be fixed at the center position of the long plate surface by setting the centering device and the moving frame. The rotating pressing cylinder drives the stud to rotate and press down through the output shaft, so that the abutment is pressed against the surface of the workpiece to fix the position of the workpiece.

[0008] Preferably, the connecting plate is rotatably installed with the long plate and the short plate via hinges, and the long plate has symmetrically opened sliding grooves inside, with sliding columns provided between the inner walls of the sliding grooves.

[0009] With the above structural design, the sliding column and the sliding groove restrict the sliding direction of the slide plate and prevent the slide plate from deviating in angle due to squeezing the workpiece.

[0010] Preferably, a connecting block B is symmetrically fixedly installed at the bottom of the short plate, and a connecting block C is symmetrically fixedly installed on the inner side wall of the moving frame. A hydraulic cylinder A is connected between the connecting block C and the connecting block B, and the upper and lower ends of the hydraulic cylinder A are rotatably installed inside the connecting block B and the connecting block C.

[0011] With the above structural setup, hydraulic cylinder A drives the output shaft to extend, causing the short plate to rotate on one side of the connecting plate, forming an angle between the short plate and the connecting plate.

[0012] Preferably, the hydraulic cylinder B includes end A and end B. The output shaft of the hydraulic cylinder B is rotatably mounted inside the connecting block D via end A, and the bottom of the hydraulic cylinder B is rotatably mounted inside the connecting block A via end B.

[0013] Preferably, the centering device includes a motor and a screw shaft. The output shaft of the motor is connected to the screw shaft via a coupling. The outer ring of the screw shaft has two threaded grooves in opposite directions. A sliding plate is symmetrically threaded onto the outer ring of the screw shaft. The sliding plate is located inside the groove and is slidably mounted on the outer ring of the sliding post. A stop plate is provided on one side of the sliding plate. A pin is symmetrically provided on one side of the stop plate. The pin is slidably mounted inside the sliding plate. A spring is fixedly connected to one side of the stop plate between the outer ring of the pin and the sliding plate.

[0014] With the above structural design and the centering device, the workpiece is centered, preventing it from shifting and causing the platform to overturn. The relative movement between the slide plates allows the workpiece to be continuously squeezed by the back plate.

[0015] Preferably, the positioning device includes a rotary pressing cylinder and a rotating bar. The rotating bar is fixedly sleeved on the end of the output shaft of the rotary pressing cylinder. A stud is slidably sleeved on the end of the rotating bar. The end of the stud is provided with a stop, which is specifically made of rubber. Nuts are threaded on the outer ring of the stud on the upper and lower surfaces of the rotating bar.

[0016] With the above structural configuration, the rotary pressing cylinder is supplied with air from an external air source to drive the rotating bar to rotate downwards. Due to the downward pressure of the rotating bar, the surface of the butt head presses against the surface of the workpiece, thereby limiting the position of the workpiece.

[0017] This utility model has the following advantages: 1. This hydraulic tilting spraying platform achieves centering through the coordinated operation of structures such as a short plate and a centering device. Hydraulic cylinder A, driven by its output shaft, rotates the short plate at the hinge on one side of the connecting plate, creating a 90° angle between the short plate and the connecting plate. By moving the workpiece, one side of the workpiece is brought into contact with the surface of the short plate. At this point, the motor is started, and its output shaft drives the screw shaft to rotate via a coupling. The screw shaft drives two sliding plates to move relative to each other through surface grooves, causing the sliding plates to contract inward around the outer ring of the screw shaft. During this movement, the abutment plate first contacts the side of the workpiece, then adjusts and compresses the workpiece. When the abutment plate fully compresses the spring, the workpiece is centered, achieving automatic centering.

[0018] 2. This hydraulic tilting spraying platform adjusts and clamps the workpiece through the cooperation of positioning devices, studs, nuts, and other structures. The rotating pressing cylinder is connected to an external air source. By supplying air to the rotating pressing cylinder, it drives a rotating bar to move synchronously via its output shaft. The rotating bar moves the stud and the abutment together. The downward pressing operation of the rotating pressing cylinder causes the abutment surface to press against the workpiece surface, achieving a positioning and clamping effect. If the distance between the abutment and the long plate surface is insufficient to clamp the workpiece before use, the nut can be turned to pull the stud upwards from the end of the rotating bar, and then the nut can be tightened, thus changing the clamping thickness and achieving the desired workpiece clamping effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the frame of this utility model; Figure 3This is a schematic diagram of the internal structure of the centering device of this utility model.

[0020] In the diagram: 1. Frame; 11. Fixed column; 12. Connecting block A; 2. Moving frame; 21. Rotating sleeve; 22. Connecting plate; 23. Long plate; 24. Short plate; 25. Connecting block B; 26. Connecting block C; 27. Hydraulic cylinder A; 28. Connecting block D; 3. Hydraulic cylinder B; 31. End A; 32. End B; 4. Centering device; 41. Screw; 42. Slide plate; 43. Abutment plate; 44. Inserted column; 45. Spring; 5. Positioning device; 51. Rotating bar; 52. Screw; 53. Abutment; 54. Nut. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-2 A hydraulic tilting spraying platform includes a frame 1, with fixed columns 11 fixedly installed inside the frame 1. Connecting blocks A12 are symmetrically fixedly installed on the inner wall of the frame 1. A movable frame 2 is provided above the frame 1. A rotating sleeve 21 is symmetrically fixedly installed at the bottom of the movable frame 2 on the outer ring of the fixed columns 11. The rotating sleeve 21 is rotatably sleeved on the outer ring of the fixed columns 11. The rotation axis of the movable frame 2 is centered on the fixed columns 11. A connecting plate 22 is fixedly installed on the top of the movable frame 2. A long plate 23 is provided on one side of the connecting plate 22, and a long plate 23 is provided on the other side of the connecting plate 22. There is a short plate 24. A connecting block D28 is symmetrically fixedly installed on the inner wall of the middle part of the moving frame 2. A hydraulic cylinder B3 is connected between the connecting block A12 and the connecting block D28. The hydraulic cylinder B3 includes an end A31 and an end B32. The output shaft of the hydraulic cylinder B3 is rotatably installed inside the connecting block D28 through the end A31. The bottom of the hydraulic cylinder B3 is rotatably installed inside the connecting block A12 through the end B32. A centering device 4 is installed inside the moving frame 2. Two positioning devices 5 are symmetrically fixedly installed on the top of the moving frame 2.

[0023] In practical applications, this device can fix the workpiece at the center position on the surface of the long plate 23 by coordinating the centering device 4 with the moving frame 2. When the workpiece is placed on the surface of the long plate 23 and the short plate 24, its position may not be very accurate due to manual placement or hoisting. It is difficult to be in the center position. At this time, the hydraulic cylinder A27 is driven. When the hydraulic cylinder A27 extends through the output shaft, the short plate 24 is located on one side of the connecting plate 22 and rotates, so that the position of the connecting plate 22 and the short plate 24 forms a 90° angle, so that one side of the workpiece is in contact with the surface of the short plate 24. Then the centering device 4 is activated, and the abutment plate 43 is driven to slide relative to each other, pushing the workpiece closer to the center position. When the displacement of the abutment plate 43 fully compresses the spring 45, the center position is adjusted, and the automatic centering effect is achieved.

[0024] Then, the positioning device 5 is activated. By supplying air to the rotating pressing cylinder, the rotating pressing cylinder drives the stud 52 to rotate and press down through the output shaft, so that the butt 53 is pressed against the surface of the workpiece to fix the position of the workpiece. Then, the spraying operation is carried out. After the single surface spraying is completed, the hydraulic cylinder B3 is activated. The output shaft of the hydraulic cylinder B3 pushes the overall moving frame 2 to rotate on the outer ring of the fixed column 11, so that the moving frame 2 rotates 90°. Then, the sides and other surfaces of the workpiece are sprayed. After the spraying is completed, the positioning device 5 and the centering device 4 are released from the restriction on the workpiece. The workpiece is flipped over using a hoisting tool, and the back of the workpiece is sprayed.

[0025] Please see Figures 1-3 The connecting plate 22 is rotated and installed with the long plate 23 and the short plate 24 via hinges. The long plate 23 has symmetrical sliding grooves inside, and sliding columns are provided between the inner walls of the sliding grooves.

[0026] By setting up sliding columns and sliding grooves, the sliding direction of the sliding plate 42 is restricted when the workpiece position is adjusted and squeezed by the sliding plate 42, so as to avoid the sliding plate 42 from deviating in angle due to squeezing the workpiece.

[0027] Please see Figures 1-2 A connecting block B25 is symmetrically fixedly installed at the bottom of the short plate 24, and a connecting block C26 is symmetrically fixedly installed on the inner side wall of the moving frame 2. A hydraulic cylinder A27 is connected between the connecting block C26 and the connecting block B25. The upper and lower ends of the hydraulic cylinder A27 are rotatably installed inside the connecting block B25 and the connecting block C26. The actual installation method of the hydraulic cylinder A27 is the same as that of the hydraulic cylinder B3. Both its upper and lower ends are rotatably installed inside the connecting block, so that the specific angle of the body can be changed when the output shaft extends or retracts, thus achieving adaptive operation.

[0028] Hydraulic cylinder A27 and moving frame 2 are conventional applications in existing technology. The principle is that hydraulic cylinder A27 drives the output shaft to extend, so that short plate 24 is located on one side of connecting plate 22 and the hinge rotates. Short plate 24 and connecting plate 22 form an angle, which squeezes the side of the workpiece.

[0029] Please see Figures 1-3 The centering device 4 includes a motor and a screw shaft 41. The output shaft of the motor is connected to the screw shaft 41 via a coupling. The outer ring of the screw shaft 41 has two threaded grooves in opposite directions. Slide plates 42 are symmetrically threaded on the outer ring of the screw shaft 41. When the screw shaft 41 rotates, it can drive the two slide plates 42 to move relative to each other, moving synchronously inward or outward. The slide plates 42 are located inside the grooves and are slidably mounted on the outer ring of the slide column. A stop plate 43 is provided on one side of the slide plate 42. A pin 44 is symmetrically provided on one side of the stop plate 43. The pins 44 are slidably mounted inside the slide plate 42. A spring 45 is fixedly connected between the outer ring of the pin 44 and the slide plate 42 on one side of the stop plate 43.

[0030] By setting the centering device 4, the workpiece is centered to prevent it from shifting and causing the platform to overturn. The motor output shaft drives the screw shaft 41 to rotate through the coupling. Since the threads of the two slide plates 42 are different, the slide plates 42 move relative to each other. The slide plates 42 move inward or outward synchronously. The screw shaft 41 drives the slide plates 42 to contract inward together, so that the workpiece is continuously squeezed by the abutment plate 43. Finally, when the abutment plate 43 completely presses the spring 45, the workpiece centering operation is completed, and the position of the workpiece is restricted by the abutment plate 43.

[0031] Please see Figures 1-3 The positioning device 5 includes a rotary pressing cylinder and a rotating bar 51. The bottom of the rotary pressing cylinder is connected to an external air source. The rotating bar 51 is fixedly sleeved on the end of the output shaft of the rotary pressing cylinder. The rotary pressing cylinder drives the rotating bar 51 to work synchronously through the output shaft. A stud 52 is slidably sleeved on the end of the rotating bar 51. The end of the stud 52 is provided with a stop 53. The stop 53 is made of rubber and has high friction. Nuts 54 are threaded on the outer ring of the stud 52 on the upper and lower surfaces of the rotating bar 51. The upper and lower nuts 54 are used to limit the position of the stud 52. The extension length of the stud 52 inside the rotating bar 51 can also be changed by moving the nuts 54, so as to achieve the effect of arbitrarily adjusting the position.

[0032] The rotary pressing cylinder is supplied with air from an external air source to drive the rotating bar 51 to rotate downwards or upwards. Since the rotary pressing cylinder is existing technology, its internal principle has not been analyzed in detail. It is a conventional technology used in this device. When the rotating bar 51 rotates and presses down, it drives the stud 52 and the abutment 53 to operate together. Due to the downward pressure of the rotating bar 51, the surface of the abutment 53 presses against the surface of the workpiece, thereby limiting the position of the workpiece and preventing the workpiece from shifting during operation. Users can also select rotary pressing cylinders of different sizes according to the different thicknesses of the workpiece, or adjust the position of the stud 52 and the abutment 53 by twisting the upper and lower nuts 54, and then pulling the stud 52 up or pressing it down. After adjusting to the required position, tighten the nuts 54 to further limit the position of the stud 52 and the abutment 53, which is used to limit workpieces of different thicknesses.

[0033] Working Principle: During use, the workpiece is placed on the surfaces of the connecting plate 22 and the long plate 23 manually or using lifting tools. Since the workpiece may be tilted, hydraulic cylinder A27 is activated. The output shaft of hydraulic cylinder A27 drives the short plate 24 to rotate at the hinge on one side of the connecting plate 22, achieving a 90° angle between the short plate 24 and the connecting plate 22. By moving the workpiece, one side of the workpiece is brought into contact with the surface of the short plate 24. At this point, the motor is activated, and its output shaft drives the screw shaft 41 to rotate via a coupling. The screw shaft 41 drives the two sliding plates 42 to move relative to each other through surface grooves, causing the sliding plates 42 to retract inwards from the outer ring of the screw shaft 41. During this movement, the abutment plate 43 first contacts the side of the workpiece, then adjusts and presses the workpiece's position. When the abutment plate 43 fully compresses the spring 45, the workpiece is positioned at the center, and the sliding plates... When the sliding plate 43 is moved by the sliding plate 42, its own position is restricted by the sliding groove and the sliding column, which provides the sliding plate 43 with a consistent angle, and avoids the sliding plate 42 from deforming due to compression. At this time, the rotary pressing cylinder is connected to the external air source. By supplying air into the rotary pressing cylinder, the rotary pressing cylinder drives the rotating bar 51 to move synchronously through the output shaft. When the rotating bar 51 moves, it drives the stud 52 and the abutment 53 to move together. Through the pressing operation of the rotary pressing cylinder, the surface of the abutment 53 is pressed against the surface of the workpiece, realizing the positioning and clamping effect of the workpiece. Then, the spraying device is used for spraying. If the distance between the abutment 53 and the surface of the long plate 23 is insufficient to clamp the workpiece before use, the nut 54 is turned to pull the stud 52 at the end of the rotating bar 51 upward. Then the nut 54 is tightened, which changes the clamping thickness.

Claims

1. A hydraulic tilting spraying platform, comprising a frame (1), characterized in that: A fixed column (11) is fixedly installed inside the frame (1). A connecting block A (12) is symmetrically fixedly installed on the inner wall of the frame (1). A movable frame (2) is provided above the frame (1). A rotating sleeve (21) is symmetrically fixedly installed at the bottom of the movable frame (2) on the outer ring of the fixed column (11). The rotating sleeve (21) is rotatably sleeved on the outer ring of the fixed column (11). A connecting plate (22) is fixedly installed at the top of the movable frame (2). A long plate (23) is provided on one side of the connecting plate (22). A short plate (24) is provided on the other side of the connecting plate (22). A connecting block D (28) is symmetrically fixedly installed on the inner wall of the middle part of the movable frame (2). A hydraulic cylinder B (3) is connected between the connecting block A (12) and the connecting block D (28). A centering device (4) is installed inside the movable frame (2). Two positioning devices (5) are symmetrically fixedly installed at the top of the movable frame (2).

2. The hydraulic tilting spraying platform according to claim 1, characterized in that: The connecting plate (22) is rotatably installed with the long plate (23) and the short plate (24) via hinges. The long plate (23) has symmetrical sliding grooves inside, and sliding columns are provided between the inner walls of the sliding grooves.

3. The hydraulic tilting spraying platform according to claim 2, characterized in that: The bottom of the short plate (24) is symmetrically fixed with connecting block B (25), and the inner side wall of the moving frame (2) is symmetrically fixed with connecting block C (26). A hydraulic cylinder A (27) is connected between the connecting block C (26) and the connecting block B (25). The upper and lower ends of the hydraulic cylinder A (27) are rotatably installed inside the connecting block B (25) and the connecting block C (26).

4. The hydraulic tilting spraying platform according to claim 3, characterized in that: The hydraulic cylinder B (3) includes end A (31) and end B (32). The output shaft of the hydraulic cylinder B (3) is rotatably mounted inside the connecting block D (28) through end A (31), and the bottom of the hydraulic cylinder B (3) is rotatably mounted inside the connecting block A (12) through end B (32).

5. A hydraulic tilting spraying platform according to claim 4, characterized in that: The centering device (4) includes a motor and a screw shaft (41). The output shaft of the motor is connected to the screw shaft (41) via a coupling. The outer ring of the screw shaft (41) has two threaded grooves with opposite directions. The outer ring of the screw shaft (41) is symmetrically threaded with a sliding plate (42). The sliding plate (42) is located inside the groove and is slidably installed on the outer ring of the sliding column. A stop plate (43) is provided on one side of the sliding plate (42). A pin (44) is symmetrically provided on one side of the stop plate (43). The pin (44) is slidably installed inside the sliding plate (42). A spring (45) is fixedly connected between the outer ring of the pin (44) and the sliding plate (42) on one side of the stop plate (43).

6. A hydraulic tilting spraying platform according to claim 5, characterized in that: The positioning device (5) includes a rotary pressing cylinder and a rotating bar (51). The rotating bar (51) is fixedly sleeved on the end of the output shaft of the rotary pressing cylinder. A stud (52) is slidably sleeved on the end of the rotating bar (51). A stop (53) is provided at the end of the stud (52). The stop (53) is made of rubber. A nut (54) is threaded on the outer ring of the stud (52) on the upper and lower surfaces of the rotating bar (51).

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